Toyota 77300-33070 Fuel Tank Cap – Gas Cap with Tether
Toyota 77300-33070 Fuel Tank Cap – Gas Cap with Tether
Restore a proper seal to your fuel system with the Toyota 77300-33070 Fuel Tank Cap, a genuine OEM part designed to meet factory standards. It helps maintain fuel pressure, reduce emissions, and prevent fuel vapor leaks — all while keeping your check engine light off.
Key Features:
- 100% Genuine Toyota OEM gas cap
- Direct-fit replacement with built-in tether strap
- Seals fuel tank to prevent vapor leaks and fuel odors
- Helps avoid check engine lights due to emissions faults
- Durable construction for long-term use
Vehicle Compatibility:
Fits a wide range of Toyota models, including:
- Toyota Camry (2002–2017)
- Toyota Corolla (2002–2019)
- Toyota RAV4 (2001–2018)
- Toyota Avalon (2005–2018)
- Toyota Highlander (2001–2019)
- Toyota Sienna (2004–2018)
- Toyota Tacoma / Tundra / 4Runner / Sequoia / Prius (various years)
🔍 Please verify fitment with your vehicle’s VIN or existing cap part number.
Cross Reference Part Numbers:
- Toyota: 77300-33070, 7730033070
- Aftermarket Replacements: Gates 31838, Stant 10504 (for reference only)
What’s Included:
- 1x Toyota 77300-33070 Fuel Cap with tether (OEM packaging)
Fast Shipping Within the USA
Orders ship in 1–2 business days with tracking provided.
Don’t ignore that gas cap warning — replace it with the genuine Toyota part your vehicle was built for.
OEM fit. Long life. No hassle.
❓ FAQ
Q: Which specific vehicle models is this gas cap compatible with?
A: The Toyota 77300-33070 is one of Toyota's most widely used genuine OEM gas caps. It is a direct factory fit for a massive selection of popular platforms, including the Toyota Camry (2002–2017), Corolla (2002–2019), RAV4 (2001–2018), Avalon (2005–2018), Highlander (2001–2019), and Sienna (2004–2018). It also fits various production years of the Tacoma, Tundra, 4Runner, Sequoia, and Prius.
Q: Can a loose or worn-out gas cap really cause my Check Engine Light to turn on?
A: Yes, absolutely. Modern vehicles feature an onboard diagnostic system that runs regular pressure tests on the fuel system to monitor the Evaporative Emission Control (EVAP) system. If the internal rubber gasket on your gas cap is cracked, brittle, or the cap isn't tightened completely, fuel vapors will leak out. The vehicle's computer detects this pressure loss as a leak and will instantly trigger a Check Engine Light (often throwing fault codes like P0442, P0455, or P0456 for minor/major EVAP leaks). Replacing a degraded cap with this genuine OEM part is the single most common fix for these specific warning lights.
Q: What are the exact step-by-step instructions for replacing this fuel cap and anchoring the tether?
A: Replacing your Toyota fuel cap is a quick, tool-free process that takes less than two minutes. Follow these simple steps to ensure a flawless install:
Open your vehicle's fuel filler door. Unscrew your old gas cap counterclockwise. Locate the plastic anchor pin or retaining ring that attaches the old cap's tether strap to the fuel door hinge or inner sheet metal slot. Gently pry or slide the old plastic pin out of its mounting hole to fully free the old cap assembly.
Before installing your new cap, take a clean cloth or paper towel and wipe down the inner metal threads and the flat outer rim of the fuel filler neck. Removing any accumulated road dust, grit, or fuel residue ensures that the new rubber gasket can establish a perfect, airtight seal.
Take the plastic anchor pin at the end of the new Toyota 77300-33070 cap tether and press it firmly into the factory mounting hole or clip slot on your fuel door assembly until you hear or feel it snap securely into place.
Insert the new gas cap into the filler neck. Spin it clockwise by hand until the threads engage smoothly. Continue turning the cap clockwise until you hear a distinct, loud "click" sound. This clicking mechanism indicates that the cap has achieved the correct torque, fully compressing the internal rubber gasket against the rim to prevent any future vapor leaks.