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DNJ

DNJ 1985 Dodge W100 5.9L Oil Pump

DNJ 1985 Dodge W100 5.9L Oil Pump

Part number: OP1140_387

Regular price $43.99 USD
Regular price Sale price $43.99 USD
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  • Free fitment check before you order

Listed for: Dodge W100 5.9LFitment notes & questions

DNJ Oil Pump for the 1985 Dodge W100 with the 5.9L engine. The oil pump pushes oil to the bearings, cam and valvetrain, building the pressure the engine needs to survive. Part number: OP1140_387.

Key features

  • W/ Standard Volume
  • Made for 16V OHV engines
  • Listed for V6, V8 3.9L, 5.2L, 5.9L 239, 318, 360 OHV 12V, 16V engines

Specifications

  • Brand: DNJ
  • Part type: Oil pump
  • Part number: OP1140_387
  • Engine: 5.9L
  • Engine code: 16V OHV

Fitment for the 1985 Dodge W100

  • Years: 1976–2003
  • Vehicles: Chrysler, Jeep
  • Cylinders: V6, V8
  • Displacement: 3.9L, 5.2L, 5.9L
  • Engine: 239, 318, 360 OHV 12V, 16V
  • Engine codes: MAGNUM

Check your year, model, engine and trim against this list before you order.

What it does

Oil pumps are usually replaced during an engine rebuild or when pressure drops, together with the pickup screen. Using the correct part for your exact engine keeps oil pressure, sealing and timing where the engine was designed to run, and doing related parts at the same time saves taking it apart twice.

Installation & tips

  • Prime the new pump with oil before installation so it picks up quickly on first start.
  • Oil pan gasket: The pan usually comes off for this job.
  • Oil and filter: Start fresh after the job.
  • Put the new part next to the old one and compare the shape, mounting points and connections before you install it.
  • Work on a cool engine with the vehicle secured, and use a service manual for your vehicle for torque specs and procedures.

FAQ

What is the part number of this oil pump?
OP1140_387 (DNJ). Compare it with the number on your old part or in your parts catalog.

Which engine is it for?
It is listed for the 5.9L 16V OHV engine in the 1985 Dodge W100. Check the engine code on your vehicle if it was offered with more than one engine.

Can I install it myself?
Many owners do this job at home with basic tools and a service manual for their vehicle. If you are not sure, have it fitted by a qualified mechanic.

Before you order

  • Confirm your year, make, model, engine and trim match the fitment listed above (1985 Dodge W100 5.9L).
  • Compare part number OP1140_387 with your original part.

Good to know

  • Warranty: 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.
View full details

About this oil pump for the Dodge W100 5.9L

Oil pumps are usually replaced during an engine rebuild or when pressure drops, together with the pickup screen.

Fitment notes

  • Listed for: Dodge W100 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? Tell us exactly what you drive and we'll confirm fitment first. It's free and saves a return.

Ask about fitment

Parts that usually go with it

More for your car: Dodge Oil Pumps · Dodge Parts · All Oil Pumps · Engine

Questions about Dodge W100 5.9L oil pump

Will this fit my Dodge W100 5.9L?
It is listed for the Dodge W100 5.9L. Check your year, model, engine and trim against the title and details above. If anything is different, contact us and we will confirm fitment before you order.
What causes low oil pressure?
Low oil level, a worn pump, a clogged pickup or worn bearings are the usual causes.
Where do specs and warranty details come from?
From DNJ. Each brand sets its own specs, lead times and warranty terms, and they can change. The product details above are the latest we have.

Questions & answers

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