DNJ
DNJ 1978 Dodge Monaco 5.9L Expansion Plug
DNJ 1978 Dodge Monaco 5.9L Expansion Plug
Part number: FPS1142_142
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Listed for: Dodge Monaco 5.9LFitment notes & questions
1978 Dodge Monaco 5.9L Expansion Plug from DNJ, listed for 1978 Dodge Monaco 5 with the 5.9L engine. Quality hardware prevents leaks that are hard to chase down later.
Quick facts
- Brand: DNJ
- Part type: Fitting
- Listed for: 1978 Dodge Monaco 5
- Engine: 5.9L
- Engine code: 16V OHV
- Part number: FPS1142_142
Listed fitment
- [1976-2003] CHRY, JEEP / V8 / 5.2L, 5.9L / 318, 360 OHV 16V [(MAGNUM)]
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.

About this fitting for the Dodge Monaco 5.9L
Quality hardware prevents leaks that are hard to chase down later.
Fitment notes
- Listed for: Dodge Monaco 5.9L.
- Engine: the same car can take different parts for each engine option, so check yours.
- 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? Message us your vehicle details and we'll double-check fitment before you buy.
Ask about fitmentParts that usually go with it
- Hose. Match hose size to the fitting.
More for your car: Dodge Parts · Fuel & air intake
Questions about Dodge Monaco 5.9L fitting or hardware
Will this fit my Dodge Monaco 5.9L?
Does it need thread sealant?
Where do specs and warranty details come from?
Questions & answers
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