Gates Fuel Tank Cap 31838

Gates 31838 is an OE equivalent, non-locking fuel cap with emission control venting, listed for the 2003-2004 and 2010 Dodge Ram 1500 3.7L V6.

Part number: 31838
Condition: New
Our SKU: 31838

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$8.18

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Vehicle fitment

Year	Make	Model	Trim, body and engine
2003–2004	Dodge	Ram 1500	3.7L V6 GAS
2010	Dodge	Ram 1500	3.7L V6 GAS

Rows are what the manufacturer lists for this part. If your trim or engine is missing, contact us with your VIN before ordering.

About this part

This Gates cap is graded OE Performance and uses emission control venting. Gates says its two-way pressure and vacuum relief valve lets the tank breathe while keeping fuel fumes in, and that the seals are made of fuel-resistant rubber. According to Gates, its emission control caps meet OEM specifications and federal and state emission requirements. Metal caps in this range are zinc plated and dichromate dipped for corrosion resistance.

Fitment notes

The catalog lists 31838 for the 2003-2004 Dodge Ram 1500 with the 3.7L V6 gas engine and the 2010 Ram 1500 with the 3.7L V6. V8 trucks are not listed for this cap. Confirm your engine in the fitment table above, or send us your VIN before ordering.

Specifications and features

Grade: OE Performance
Lockable: no
Venting type: emission control
Two-way pressure and vacuum relief valve
Fuel-resistant rubber seal

Installation notes

Inspect the filler neck lip for nicks or rust that could break the seal. Tighten the new cap until it clicks. If an EVAP code was set, clear it or allow a few drive cycles for the system to recheck.