Honda Fuel Filler Cap 17670-T3W-A01 - Genuine OEM Replacement, Black Tethered Seal

The Honda 17670-T3W-A01 is the genuine OEM fuel filler cap engineered to restore a factory fit and seal to specific Honda models.

If your vehicle’s fuel cap is cracked, missing, or no longer seals properly, replacing it with this genuine Honda part ensures compatibility and durability. Unlike aftermarket copies, this cap is manufactured to the same specifications used on the original assembly, giving you the correct threads, sealing surface, and tether fit. Using an OEM cap helps maintain proper venting and can prevent fuel odor, loss, or check-engine triggers tied to fuel system pressure leaks.

Which Honda vehicles use the 17670-T3W-A01 fuel cap?

This cap fits select Honda model-years that originally shipped with the 17670-T3W-A01 part number; compatibility depends on year and trim. Always verify your VIN or existing part number before ordering to guarantee fitment. If uncertain, consult your dealer parts department or the vehicle’s service manual.

• Direct OEM replacement for vehicles listing part 17670-T3W-A01
• Check vehicle VIN or current cap stamping for confirmation
• Dealer parts lookup recommended for cross-reference

How does a genuine Honda cap differ from aftermarket alternatives?

Genuine Honda caps are produced to the manufacturer’s original engineering tolerances, ensuring consistent thread engagement, sealing surface geometry, and material quality. Aftermarket caps can vary in dimensions, venting design, and rubber compound, which may affect sealing integrity and durability. Choosing OEM reduces the risk of fitment issues and potential diagnostic trouble codes caused by evaporative system leaks.

• Original factory materials and specifications
• Precise fit to the factory filler neck and tether mount
• Consistent sealing to help prevent fuel vapor escape

What are the installation steps and maintenance tips for this fuel cap?

Installation is straightforward: align the cap with the filler neck, rotate until you hear clicks, and ensure the tether is secured if equipped. Inspect the rubber seal periodically for cracks or hardening and replace the cap immediately if the seal shows wear. Clean the filler neck threads and surrounding area before installing to avoid debris that could compromise the seal.

• Turn until audible locking clicks confirm proper seating
• Inspect rubber gasket for elasticity and damage
• Keep the filler neck clean to preserve the seal

Will replacing the fuel cap affect emissions or the check engine light?

A worn or missing fuel cap can allow fuel vapors to escape, sometimes triggering evaporative-emissions system warnings or the check engine light. Installing the correct OEM cap can often resolve small evaporative leaks and stop related warning lights if no other faults exist. For persistent codes, a diagnostic scan is recommended to rule out other components in the EVAP system.

• Proper sealing reduces evaporative vapor loss
• OEM fit lowers the chance of EVAP system error codes
• Scan required if warning lights persist after replacement

Who is this for: drivers and technicians seeking an authentic Honda replacement part to restore factory fit, sealing, and durability. This cap suits owners of compatible Honda vehicles who prefer OEM quality over aftermarket substitutes, fleet maintenance teams replacing worn hardware, and anyone troubleshooting fuel system odor or EVAP-related alerts. Confirm fitment with your VIN or the part number before ordering to ensure correct application.