Fleetguard LF14002NN Oil Filter

Fleetguard LF14002NN Oil Filter

$239.99
$239.99 $289.99
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Fleetguard LF14002NN Oil Filter
  • Fleetguard LF14002NN Oil Filter
  • Fleetguard LF14002NN Oil Filter
  • Fleetguard LF14002NN Oil Filter
  • Fleetguard LF14002NN Oil Filter
Fleetguard LF14002NN Oil Filter

Fleetguard LF14002NN Oil Filter

$239.99
$239.99 $289.99
1
Prep the work area and position your container
Position a heavy-duty drain pan or bucket underneath
1.Prep the work area and position your container:Position a heavy-duty drain pan or bucket underneath.

Park the truck on a level surface, apply the parking brake, and shut down the engine. Allow the motor to cool slightly if it was running at full operating temperature to avoid severe oil burns. Locate the oil filter assembly on the side of the Cummins engine block and slide a high-capacity drain pan directly underneath.
2
Unscrew and remove the dirty filter
Turn counterclockwise using a heavy-duty tool
2.Unscrew and remove the dirty filter:Turn counterclockwise using a heavy-duty tool.

Fit a heavy-duty commercial filter strap wrench or large oil filter cup wrench around the upper section of the canister body. Turn it counterclockwise to break the seal. Carefully spin the old filter completely off the threaded mounting stud, keeping the heavy canister perfectly upright as you lower it out to prevent dumping oil down the side of the engine block.
3
Clean the mounting head and inspect the old seal
Wipe away any accumulated sludge or road grit
3.Clean the mounting head and inspect the old seal:Wipe away any accumulated sludge or road grit.

Look closely at the bottom of the old filter to ensure the thick rubber sealing gasket came off with it. If the old seal is stuck to the engine head adapter, peel it off. Take a clean, lint-free rag and thoroughly wipe down the flat aluminum sealing surface and threaded mounting stud on the engine block to remove any residual grime.
4
Pre-fill and lubricate the new LF14002NN filter
Lubricate the upper rubber seal with clean engine oil
4.Pre-fill and lubricate the new LF14002NN filter:Lubricate the upper rubber seal with clean engine oil.

Because dry starts can cause immediate engine bearing wear on large-displacement diesels, fill the new LF14002NN filter with clean, fresh engine oil through the outer perimeter inlet holes before mounting it. Once filled, dip a clean finger into fresh oil and smear a thin, smooth film over the entire top rubber sealing ring to ensure a proper seal and easy removal next time.
5
Spin on the new filter by hand
Hand-tighten only; do not use a strap wrench to tighten
5.Spin on the new filter by hand:Hand-tighten only; do not use a strap wrench to tighten.

Guide the new pre-filled filter up to the mounting head. Thread it clockwise onto the center stud by hand to ensure it is not cross-threaded. Spin the canister up until the lubricated rubber gasket makes flush, flat contact with the metal base. From that exact point of contact, tighten the filter by hand an additional 1 full turn to compress the seal securely.
6
Start the truck and inspect for leaks
Check for proper oil pressure readings
6.Start the truck and inspect for leaks:Check for proper oil pressure readings.

Ensure the main engine oil pan drain plug is secure and the oil level is topped off to specification. Start the engine and let it run at a smooth base idle. Watch your dashboard gauge cluster to ensure oil pressure builds correctly within a few seconds. Step down and visually inspect the base of the new LF14002NN filter to verify there are absolutely no oil drips or weeping leaks.

Fleetguard LF14002NN Oil Filter – Advanced Filtration for Maximum Engine Protection


The Fleetguard LF14002NN oil filter is engineered to deliver exceptional engine protection for heavy-duty diesel applications. Powered by Nano Net media, this filter provides high-efficiency filtration, capturing finer contaminants than conventional filters — even under high pressure and long service intervals.


Compatible with Cummins ISX, X12, and other commercial engines, the LF14002NN is a direct upgrade from earlier Fleetguard models like LF9081 and LF9027, and is ideal for fleets, long-haul trucks, and industrial engines that demand top performance and reliability.


Key Features:

  • NanoNet Filtration Technology: Offers 98.7% efficiency at 4 microns to protect critical engine components.
  • Extended Drain Intervals: Designed for long-haul diesel engines and fleet maintenance efficiency.
  • Rugged & Reliable: Built to handle extreme temperatures, pressure spikes, and high soot environments.
  • OEM Fit & Function: Replaces multiple part numbers with consistent, factory-grade performance.


Vehicle Compatibility:

Recommended for various heavy-duty diesel engines, including:

 

  • Cummins ISX12 / ISX / X12

  • Kenworth T680 / W900

  • Peterbilt 389 / 579

  • Freightliner Cascadia

  • Volvo VNL Series

  • International ProStar / LT Series

  • Mack Pinnacle & Anthem

  • Western Star 5700XE

Always confirm fitment by engine model or VIN before purchasing.


Cross Reference Part Numbers:

 

  • Fleetguard LF9081

  • Fleetguard LF9027

  • Cummins 4358936

  • Baldwin BD10300

  • Donaldson P550962

  • Fram CH11635

  • Wix 57620

  • Luber-Finer LFP9001XL

 

Why Buy From Us?

 

✔️ Ships Fast from the USA

✔️ Trusted Automotive & Diesel Parts Supplier

✔️ Quality Assurance Guarantee

✔️ Perfect for Fleets, Truckers & Diesel Mechanics

 

❓ FAQ

Q: Which specific Class 8 commercial trucks and engine platforms is this oil filter compatible with?

A: The Fleetguard LF14002NN is a heavy-duty spin-on lube filter engineered specifically for large-displacement commercial diesel engines. It is a premium factory standard for the Cummins ISX, ISX12, and modern X12 engine platforms. You will find this filter widely utilized across major Class 8 commercial semi-trucks, including the Freightliner Cascadia, Kenworth T680 and W900, Peterbilt 389 and 579, Volvo VNL Series, International ProStar and LT Series, Mack Pinnacle and Anthem, and Western Star 5700XE running these specific powerplants.

Q: What unique advantage does NanoNet® filtration technology offer, and how does it replace legacy filters like the LF9081?

A: The LF14002NN serves as the direct advanced upgrade for popular legacy filters like the LF9081 and LF9027. While older filters relied on traditional combination stack media (cellulose and standard synthetic layers), the LF14002NN features proprietary NanoNet® advanced synthetic media. This structures microscopic fibers into a highly consistent web that captures 98.7% of harmful contaminants down to 4 microns without restricting oil flow. It handles high-pressure spikes and severe soot loading effortlessly, preventing trapped contaminants from unloading back into the engine block during cold starts, making it perfect for extended drain fleet intervals.

Q: What are the exact step-by-step instructions for performing an oil filter change on a Cummins ISX or X12 engine?

A: Because a commercial diesel engine holds a massive volume of oil and runs high operating pressures, swapping the LF14002NN requires proper seal preparation to prevent blowout leaks or thread damage:

1Prep the work area and position your container

Position a heavy-duty drain pan or bucket underneath

1.Prep the work area and position your container: Position a heavy-duty drain pan or bucket underneath.Park the truck on a level surface, apply the parking brake, and shut down the engine. Allow the motor to cool slightly if it was running at full operating temperature to avoid severe oil burns. Locate the oil filter assembly on the side of the Cummins engine block and slide a high-capacity drain pan directly underneath.

2Unscrew and remove the dirty filter

Turn counterclockwise using a heavy-duty tool

2.Unscrew and remove the dirty filter: Turn counterclockwise using a heavy-duty tool.Fit a heavy-duty commercial filter strap wrench or large oil filter cup wrench around the upper section of the canister body. Turn it counterclockwise to break the seal. Carefully spin the old filter completely off the threaded mounting stud, keeping the heavy canister perfectly upright as you lower it out to prevent dumping oil down the side of the engine block.

3Clean the mounting head and inspect the old seal

Wipe away any accumulated sludge or road grit

3.Clean the mounting head and inspect the old seal: Wipe away any accumulated sludge or road grit.Look closely at the bottom of the old filter to ensure the thick rubber sealing gasket came off with it. If the old seal is stuck to the engine head adapter, peel it off. Take a clean, lint-free rag and thoroughly wipe down the flat aluminum sealing surface and threaded mounting stud on the engine block to remove any residual grime.

4Pre-fill and lubricate the new LF14002NN filter

Lubricate the upper rubber seal with clean engine oil

4.Pre-fill and lubricate the new LF14002NN filter: Lubricate the upper rubber seal with clean engine oil.Because dry starts can cause immediate engine bearing wear on large-displacement diesels, fill the new LF14002NN filter with clean, fresh engine oil through the outer perimeter inlet holes before mounting it. Once filled, dip a clean finger into fresh oil and smear a thin, smooth film over the entire top rubber sealing ring to ensure a proper seal and easy removal next time.

5Spin on the new filter by hand

Hand-tighten only; do not use a strap wrench to tighten

5.Spin on the new filter by hand:Hand-tighten only; do not use a strap wrench to tighten.Guide the new pre-filled filter up to the mounting head. Thread it clockwise onto the center stud by hand to ensure it is not cross-threaded. Spin the canister up until the lubricated rubber gasket makes flush, flat contact with the metal base. From that exact point of contact, tighten the filter by hand an additional 1 full turn to compress the seal securely.

6Start the truck and inspect for leaks

Check for proper oil pressure readings

6.Start the truck and inspect for leaks: Check for proper oil pressure readings.Ensure the main engine oil pan drain plug is secure and the oil level is topped off to specification. Start the engine and let it run at a smooth base idle. Watch your dashboard gauge cluster to ensure oil pressure builds correctly within a few seconds. Step down and visually inspect the base of the new LF14002NN filter to verify there are absolutely no oil drips or weeping leaks.

1
Prep the work area and position your container
Position a heavy-duty drain pan or bucket underneath
1.Prep the work area and position your container:Position a heavy-duty drain pan or bucket underneath.

Park the truck on a level surface, apply the parking brake, and shut down the engine. Allow the motor to cool slightly if it was running at full operating temperature to avoid severe oil burns. Locate the oil filter assembly on the side of the Cummins engine block and slide a high-capacity drain pan directly underneath.
2
Unscrew and remove the dirty filter
Turn counterclockwise using a heavy-duty tool
2.Unscrew and remove the dirty filter:Turn counterclockwise using a heavy-duty tool.

Fit a heavy-duty commercial filter strap wrench or large oil filter cup wrench around the upper section of the canister body. Turn it counterclockwise to break the seal. Carefully spin the old filter completely off the threaded mounting stud, keeping the heavy canister perfectly upright as you lower it out to prevent dumping oil down the side of the engine block.
3
Clean the mounting head and inspect the old seal
Wipe away any accumulated sludge or road grit
3.Clean the mounting head and inspect the old seal:Wipe away any accumulated sludge or road grit.

Look closely at the bottom of the old filter to ensure the thick rubber sealing gasket came off with it. If the old seal is stuck to the engine head adapter, peel it off. Take a clean, lint-free rag and thoroughly wipe down the flat aluminum sealing surface and threaded mounting stud on the engine block to remove any residual grime.
4
Pre-fill and lubricate the new LF14002NN filter
Lubricate the upper rubber seal with clean engine oil
4.Pre-fill and lubricate the new LF14002NN filter:Lubricate the upper rubber seal with clean engine oil.

Because dry starts can cause immediate engine bearing wear on large-displacement diesels, fill the new LF14002NN filter with clean, fresh engine oil through the outer perimeter inlet holes before mounting it. Once filled, dip a clean finger into fresh oil and smear a thin, smooth film over the entire top rubber sealing ring to ensure a proper seal and easy removal next time.
5
Spin on the new filter by hand
Hand-tighten only; do not use a strap wrench to tighten
5.Spin on the new filter by hand:Hand-tighten only; do not use a strap wrench to tighten.

Guide the new pre-filled filter up to the mounting head. Thread it clockwise onto the center stud by hand to ensure it is not cross-threaded. Spin the canister up until the lubricated rubber gasket makes flush, flat contact with the metal base. From that exact point of contact, tighten the filter by hand an additional 1 full turn to compress the seal securely.
6
Start the truck and inspect for leaks
Check for proper oil pressure readings
6.Start the truck and inspect for leaks:Check for proper oil pressure readings.

Ensure the main engine oil pan drain plug is secure and the oil level is topped off to specification. Start the engine and let it run at a smooth base idle. Watch your dashboard gauge cluster to ensure oil pressure builds correctly within a few seconds. Step down and visually inspect the base of the new LF14002NN filter to verify there are absolutely no oil drips or weeping leaks.

 

1
Prep the work area and position your container
Position a heavy-duty drain pan or bucket underneath
1.Prep the work area and position your container:Position a heavy-duty drain pan or bucket underneath.

Park the truck on a level surface, apply the parking brake, and shut down the engine. Allow the motor to cool slightly if it was running at full operating temperature to avoid severe oil burns. Locate the oil filter assembly on the side of the Cummins engine block and slide a high-capacity drain pan directly underneath.
2
Unscrew and remove the dirty filter
Turn counterclockwise using a heavy-duty tool
2.Unscrew and remove the dirty filter:Turn counterclockwise using a heavy-duty tool.

Fit a heavy-duty commercial filter strap wrench or large oil filter cup wrench around the upper section of the canister body. Turn it counterclockwise to break the seal. Carefully spin the old filter completely off the threaded mounting stud, keeping the heavy canister perfectly upright as you lower it out to prevent dumping oil down the side of the engine block.
3
Clean the mounting head and inspect the old seal
Wipe away any accumulated sludge or road grit
3.Clean the mounting head and inspect the old seal:Wipe away any accumulated sludge or road grit.

Look closely at the bottom of the old filter to ensure the thick rubber sealing gasket came off with it. If the old seal is stuck to the engine head adapter, peel it off. Take a clean, lint-free rag and thoroughly wipe down the flat aluminum sealing surface and threaded mounting stud on the engine block to remove any residual grime.
4
Pre-fill and lubricate the new LF14002NN filter
Lubricate the upper rubber seal with clean engine oil
4.Pre-fill and lubricate the new LF14002NN filter:Lubricate the upper rubber seal with clean engine oil.

Because dry starts can cause immediate engine bearing wear on large-displacement diesels, fill the new LF14002NN filter with clean, fresh engine oil through the outer perimeter inlet holes before mounting it. Once filled, dip a clean finger into fresh oil and smear a thin, smooth film over the entire top rubber sealing ring to ensure a proper seal and easy removal next time.
5
Spin on the new filter by hand
Hand-tighten only; do not use a strap wrench to tighten
5.Spin on the new filter by hand:Hand-tighten only; do not use a strap wrench to tighten.

Guide the new pre-filled filter up to the mounting head. Thread it clockwise onto the center stud by hand to ensure it is not cross-threaded. Spin the canister up until the lubricated rubber gasket makes flush, flat contact with the metal base. From that exact point of contact, tighten the filter by hand an additional 1 full turn to compress the seal securely.
6
Start the truck and inspect for leaks
Check for proper oil pressure readings
6.Start the truck and inspect for leaks:Check for proper oil pressure readings.

Ensure the main engine oil pan drain plug is secure and the oil level is topped off to specification. Start the engine and let it run at a smooth base idle. Watch your dashboard gauge cluster to ensure oil pressure builds correctly within a few seconds. Step down and visually inspect the base of the new LF14002NN filter to verify there are absolutely no oil drips or weeping leaks.

 

1
Prep the work area and position your container
Position a heavy-duty drain pan or bucket underneath
1.Prep the work area and position your container:Position a heavy-duty drain pan or bucket underneath.

Park the truck on a level surface, apply the parking brake, and shut down the engine. Allow the motor to cool slightly if it was running at full operating temperature to avoid severe oil burns. Locate the oil filter assembly on the side of the Cummins engine block and slide a high-capacity drain pan directly underneath.
2
Unscrew and remove the dirty filter
Turn counterclockwise using a heavy-duty tool
2.Unscrew and remove the dirty filter:Turn counterclockwise using a heavy-duty tool.

Fit a heavy-duty commercial filter strap wrench or large oil filter cup wrench around the upper section of the canister body. Turn it counterclockwise to break the seal. Carefully spin the old filter completely off the threaded mounting stud, keeping the heavy canister perfectly upright as you lower it out to prevent dumping oil down the side of the engine block.
3
Clean the mounting head and inspect the old seal
Wipe away any accumulated sludge or road grit
3.Clean the mounting head and inspect the old seal:Wipe away any accumulated sludge or road grit.

Look closely at the bottom of the old filter to ensure the thick rubber sealing gasket came off with it. If the old seal is stuck to the engine head adapter, peel it off. Take a clean, lint-free rag and thoroughly wipe down the flat aluminum sealing surface and threaded mounting stud on the engine block to remove any residual grime.
4
Pre-fill and lubricate the new LF14002NN filter
Lubricate the upper rubber seal with clean engine oil
4.Pre-fill and lubricate the new LF14002NN filter:Lubricate the upper rubber seal with clean engine oil.

Because dry starts can cause immediate engine bearing wear on large-displacement diesels, fill the new LF14002NN filter with clean, fresh engine oil through the outer perimeter inlet holes before mounting it. Once filled, dip a clean finger into fresh oil and smear a thin, smooth film over the entire top rubber sealing ring to ensure a proper seal and easy removal next time.
5
Spin on the new filter by hand
Hand-tighten only; do not use a strap wrench to tighten
5.Spin on the new filter by hand:Hand-tighten only; do not use a strap wrench to tighten.

Guide the new pre-filled filter up to the mounting head. Thread it clockwise onto the center stud by hand to ensure it is not cross-threaded. Spin the canister up until the lubricated rubber gasket makes flush, flat contact with the metal base. From that exact point of contact, tighten the filter by hand an additional 1 full turn to compress the seal securely.
6
Start the truck and inspect for leaks
Check for proper oil pressure readings
6.Start the truck and inspect for leaks:Check for proper oil pressure readings.

Ensure the main engine oil pan drain plug is secure and the oil level is topped off to specification. Start the engine and let it run at a smooth base idle. Watch your dashboard gauge cluster to ensure oil pressure builds correctly within a few seconds. Step down and visually inspect the base of the new LF14002NN filter to verify there are absolutely no oil drips or weeping leaks.

 

1
Prep the work area and position your container
Position a heavy-duty drain pan or bucket underneath
1.Prep the work area and position your container:Position a heavy-duty drain pan or bucket underneath.

Park the truck on a level surface, apply the parking brake, and shut down the engine. Allow the motor to cool slightly if it was running at full operating temperature to avoid severe oil burns. Locate the oil filter assembly on the side of the Cummins engine block and slide a high-capacity drain pan directly underneath.
2
Unscrew and remove the dirty filter
Turn counterclockwise using a heavy-duty tool
2.Unscrew and remove the dirty filter:Turn counterclockwise using a heavy-duty tool.

Fit a heavy-duty commercial filter strap wrench or large oil filter cup wrench around the upper section of the canister body. Turn it counterclockwise to break the seal. Carefully spin the old filter completely off the threaded mounting stud, keeping the heavy canister perfectly upright as you lower it out to prevent dumping oil down the side of the engine block.
3
Clean the mounting head and inspect the old seal
Wipe away any accumulated sludge or road grit
3.Clean the mounting head and inspect the old seal:Wipe away any accumulated sludge or road grit.

Look closely at the bottom of the old filter to ensure the thick rubber sealing gasket came off with it. If the old seal is stuck to the engine head adapter, peel it off. Take a clean, lint-free rag and thoroughly wipe down the flat aluminum sealing surface and threaded mounting stud on the engine block to remove any residual grime.
4
Pre-fill and lubricate the new LF14002NN filter
Lubricate the upper rubber seal with clean engine oil
4.Pre-fill and lubricate the new LF14002NN filter:Lubricate the upper rubber seal with clean engine oil.

Because dry starts can cause immediate engine bearing wear on large-displacement diesels, fill the new LF14002NN filter with clean, fresh engine oil through the outer perimeter inlet holes before mounting it. Once filled, dip a clean finger into fresh oil and smear a thin, smooth film over the entire top rubber sealing ring to ensure a proper seal and easy removal next time.
5
Spin on the new filter by hand
Hand-tighten only; do not use a strap wrench to tighten
5.Spin on the new filter by hand:Hand-tighten only; do not use a strap wrench to tighten.

Guide the new pre-filled filter up to the mounting head. Thread it clockwise onto the center stud by hand to ensure it is not cross-threaded. Spin the canister up until the lubricated rubber gasket makes flush, flat contact with the metal base. From that exact point of contact, tighten the filter by hand an additional 1 full turn to compress the seal securely.
6
Start the truck and inspect for leaks
Check for proper oil pressure readings
6.Start the truck and inspect for leaks:Check for proper oil pressure readings.

Ensure the main engine oil pan drain plug is secure and the oil level is topped off to specification. Start the engine and let it run at a smooth base idle. Watch your dashboard gauge cluster to ensure oil pressure builds correctly within a few seconds. Step down and visually inspect the base of the new LF14002NN filter to verify there are absolutely no oil drips or weeping leaks.

 

1.Prep the work area and position your container:Position a heavy-duty drain pan or bucket underneath.

Park the truck on a level surface, apply the parking brake, and shut down the engine. Allow the motor to cool slightly if it was running at full operating temperature to avoid severe oil burns. Locate the oil filter assembly on the side of the Cummins engine block and slide a high-capacity drain pan directly underneath.
2.Unscrew and remove the dirty filter:Turn counterclockwise using a heavy-duty tool.

Fit a heavy-duty commercial filter strap wrench or large oil filter cup wrench around the upper section of the canister body. Turn it counterclockwise to break the seal. Carefully spin the old filter completely off the threaded mounting stud, keeping the heavy canister perfectly upright as you lower it out to prevent dumping oil down the side of the engine block.
3.Clean the mounting head and inspect the old seal:Wipe away any accumulated sludge or road grit.

Look closely at the bottom of the old filter to ensure the thick rubber sealing gasket came off with it. If the old seal is stuck to the engine head adapter, peel it off. Take a clean, lint-free rag and thoroughly wipe down the flat aluminum sealing surface and threaded mounting stud on the engine block to remove any residual grime.
4.Pre-fill and lubricate the new LF14002NN filter:Lubricate the upper rubber seal with clean engine oil.

Because dry starts can cause immediate engine bearing wear on large-displacement diesels, fill the new LF14002NN filter with clean, fresh engine oil through the outer perimeter inlet holes before mounting it. Once filled, dip a clean finger into fresh oil and smear a thin, smooth film over the entire top rubber sealing ring to ensure a proper seal and easy removal next time.
5.Spin on the new filter by hand:Hand-tighten only; do not use a strap wrench to tighten.

Guide the new pre-filled filter up to the mounting head. Thread it clockwise onto the center stud by hand to ensure it is not cross-threaded. Spin the canister up until the lubricated rubber gasket makes flush, flat contact with the metal base. From that exact point of contact, tighten the filter by hand an additional 1 full turn to compress the seal securely.
6.Start the truck and inspect for leaks:Check for proper oil pressure readings.

Ensure the main engine oil pan drain plug is secure and the oil level is topped off to specification. Start the engine and let it run at a smooth base idle. Watch your dashboard gauge cluster to ensure oil pressure builds correctly within a few seconds. Step down and visually inspect the base of the new LF14002NN filter to verify there are absolutely no oil drips or weeping leaks.

 

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