DNJ
DNJ 1980 Pontiac Grand LeMans 5.0L Expansion Plug
DNJ 1980 Pontiac Grand LeMans 5.0L Expansion Plug
Part number: FPS3101_891
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Listed for: Pontiac Grand LeMansFitment notes & questions
1980 Pontiac Grand LeMans 5.0L Expansion Plug from DNJ, listed for 1980 Pontiac Grand LeMans with the 5.0L engine. Thread type and size must match on both sides; AN, NPT and metric threads do not mix.
Quick facts
- Brand: DNJ
- Part type: Fitting
- Listed for: 1980 Pontiac Grand LeMans
- Engine: 5.0L
- Engine code: 16V OHV
- Part number: FPS3101_891
Listed fitment
- [1962-2002] GM / V6, V8 / 3.8L, 4.6L, 4.9L, 5.0L, 5.3L, 5.7L / 229, 283, 302, 305, 307, 327, 350 OHV 12V, 16V [(CHEVROLET, LT1, VORTEC)]
Good to know
- Notes: Brass
- Warranty terms: 12 month or 12,000 mile warranty whichever comes first. Warranty must be requested by the original purchaser and is limited to the replacement of the alleged defective part(s) only.
Tip: Confirm thread type and size on both sides, and use the right sealant or none as the fitting type requires.

DNJ fitting or hardware for the Pontiac Grand LeMans: what to know
Thread type and size must match on both sides; AN, NPT and metric threads do not mix.
Fitment notes
- Listed for: Pontiac Grand LeMans.
- Engine: match the engine size and code to your vehicle; the same model often came with several engines.
- Specs, lead time and warranty come from DNJ and can change. The details above this guide are the latest we have.
Not sure it fits? Tell us exactly what you drive and we'll confirm fitment first. It's free and saves a return.
Ask about fitmentWhat else to plan for
- Hose. Match hose size to the fitting.
More for your car: Pontiac Parts · Fuel & air intake
Questions about Pontiac Grand LeMans fitting or hardware
Will this fit my Pontiac Grand LeMans?
Does it need thread sealant?
Where do specs and warranty details come from?
Questions & answers
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