DNJ
DNJ 1989 Buick Regal 3.1L Expansion Plug
DNJ 1989 Buick Regal 3.1L Expansion Plug
Part number: FPS3131_2
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- Tracking emailed when it ships
- Free fitment check before you order
Listed for: Buick Regal 3.1LFitment notes & questions
DNJ 1989 Buick Regal 3.1L Expansion Plug, listed for 1989 Buick Regal 3 with the 3.1L 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: 1989 Buick Regal 3
- Engine: 3.1L
- Engine code: VIN T 12V OHV
- Part number: FPS3131_2
Listed fitment
- [1988-2003] GM / V6 / 3.1L / 191 OHV 12V
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.

Before you order: Buick Regal 3.1L fitting fitment
Fittings and hardware connect lines, hoses and parts securely.
Fitment notes
- Listed for: Buick Regal 3.1L.
- Engine: check the engine size listed against your vehicle's VIN or under-hood label.
- 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 fitmentPlan the whole job
- Hose. Match hose size to the fitting.
More for your car: Buick Parts · Fuel & air intake
Questions about Buick Regal 3.1L fitting or hardware
Will this fit my Buick Regal 3.1L?
Does it need thread sealant?
Where do specs and warranty details come from?
Questions & answers
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