DNJ
DNJ 1990 Chevrolet S10 4.3L Water Pump
DNJ 1990 Chevrolet S10 4.3L Water Pump
Part number: WP3125_166
Couldn't load pickup availability
- Ships direct from the brand or supplier
- Tracking emailed when it ships
- Free fitment check before you order
Listed for: Chevrolet S10 4.3LFitment notes & questions
1990 Chevrolet S10 4.3L Water Pump by DNJ for 1990 Chevrolet S10 with the 4.3L engine. On many engines the water pump sits behind the timing belt, so the two are often replaced together.
Quick facts
- Brand: DNJ
- Part type: Water pump
- Listed for: 1990 Chevrolet S10
- Engine: 4.3L
- Engine code: VIN Z 12V OHV
- Part number: WP3125_166
Listed fitment
- [1987-1996] GM / V6, V8 / 4.3L, 5.0L, 5.7L / 262, 305, 350 OHV 12V, 16V [(CHEVROLET, VORTEC)]
Good to know
- Notes: Premium
- 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: Flush the old coolant and refill with the type your engine specifies, then bleed air out of the system.

DNJ water pump for the Chevrolet S10 4.3L: what to know
Pumps wear at the bearing and seal. A leak from the weep hole or a growling noise usually means it is time.
Fitment notes
- Listed for: Chevrolet S10 4.3L.
- Engine: match the engine size and code to your vehicle; the same model often came with several engines.
- 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? Send us your year, make, model, engine and trim and we'll check before you order.
Ask about fitmentWhat else to plan for
- Thermostat. Cheap to replace while the system is drained.
- Coolant. Refill with the correct type.
- Timing belt. If the belt drives the pump, do both together.
More for your car: Chevrolet Water Pumps · Chevrolet Parts · All Water Pumps · Cooling & heating
Questions about Chevrolet S10 4.3L water pump
Will this fit my Chevrolet S10 4.3L?
What are signs of a failing water pump?
Where do specs and warranty details come from?
Questions & answers
No questions yet about this part. Ask about fitment, what's in the box or installation and we'll answer here.