DNJ
DNJ 1991 Jeep Comanche 4.0L Expansion Plug
DNJ 1991 Jeep Comanche 4.0L Expansion Plug
Part number: FPS1120_14
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- Tracking emailed when it ships
- Free fitment check before you order
Listed for: Jeep Comanche 4.0LFitment notes & questions
1991 Jeep Comanche 4.0L Expansion Plug from DNJ, listed for 1991 Jeep Comanche 4 with the 4.0L 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: 1991 Jeep Comanche 4
- Engine: 4.0L
- Engine code: 12V OHV
- Part number: FPS1120_14
Listed fitment
- [1987-2006] JEEP / L6 / 4.0L / 242 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: Jeep Comanche 4.0L fitting fitment
Fittings and hardware connect lines, hoses and parts securely.
Fitment notes
- Listed for: Jeep Comanche 4.0L.
- 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: Jeep Parts · Fuel & air intake
Questions about Jeep Comanche 4.0L fitting or hardware
Will this fit my Jeep Comanche 4.0L?
Does it need thread sealant?
Where do specs and warranty details come from?
Questions & answers
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