DNJ
DNJ 1998 GMC C1500 4.3L Crankshaft Seal
DNJ 1998 GMC C1500 4.3L Crankshaft Seal
Part number: RM3129_149
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- Free fitment check before you order
Listed for: GMC C1500 4.3LFitment notes & questions
Crankshaft Seal from DNJ, listed for the 1998 GMC C1500 with the 4.3L engine. Rubber seals age and harden over time, so older engines often need them when other work is done nearby. Part number: RM3129_149.
Key features
- Made for VIN D 16V OHV engines
- Listed for V6, V8 4.3L, 5.0L, 5.7L 262, 305, 350 OHV 12V, 16V engines
Specifications
- Brand: DNJ
- Part type: Seal
- Part number: RM3129_149
- Engine: 4.3L
- Engine code: VIN D 16V OHV
Fitment for the 1998 GMC C1500
- Years: 1987–2006
- Vehicles: GM, Isuzu
- Cylinders: V6, V8
- Displacement: 4.3L, 5.0L, 5.7L
- Engine: 262, 305, 350 OHV 12V, 16V
- Engine codes: CHEVROLET, VORTEC
Check your year, model, engine and trim against this list before you order.
What it does
A worn seal lets oil seep out or get burned. Replacing it is cheap; getting to it is usually the work. 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
- Lightly oil the seal lip before installation and press it in square so it does not cock or fold.
- Timing parts: Front crank and cam seals sit behind the timing belt or chain, so they are often done together.
- 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 crankshaft seal?
RM3129_149 (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 4.3L VIN D 16V OHV engine in the 1998 GMC C1500. 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 (1998 GMC C1500 4.3L).
- Compare part number RM3129_149 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.
About this seal for the GMC C1500 4.3L
Rubber seals age and harden over time, so older engines often need them when other work is done nearby.
Fitment notes
- Listed for: GMC C1500 4.3L.
- 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
- Timing parts. Front crank and cam seals sit behind the timing belt or chain, so they are often done together.
More for your car: GMC Crankshaft Seals · GMC Parts · All Crankshaft Seals · Engine
Questions about GMC C1500 4.3L seal
Will this fit my GMC C1500 4.3L?
How do I know a seal is leaking?
Where do specs and warranty details come from?
Questions & answers
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