DNJ
DNJ 2003 Isuzu Ascender 5.3L Water Pump
DNJ 2003 Isuzu Ascender 5.3L Water Pump
Part number: WP3165_118
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- Free fitment check before you order
Listed for: Isuzu Ascender 5.3LFitment notes & questions
DNJ 2003 Isuzu Ascender 5.3L Water Pump, listed for 2003 Isuzu Ascender with the 5.3L engine. The water pump moves coolant through the engine and radiator so the engine holds a steady temperature.
Quick facts
- Brand: DNJ
- Part type: Water pump
- Listed for: 2003 Isuzu Ascender
- Engine: 5.3L
- Engine code: VIN V Vortec 16V OHV
- Part number: WP3165_118
Listed fitment
- [1999-2007] GM, ISUZU / V8 / 4.8L, 5.3L, 6.0L / 293, 325, 364 OHV 16V [(L59, LM4, LM7, LR4, VORTEC)]
Good to know
- Notes: LR4, 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.

Before you order: Isuzu Ascender 5.3L water pump fitment
The water pump moves coolant through the engine and radiator so the engine holds a steady temperature.
Fitment notes
- Listed for: Isuzu Ascender 5.3L.
- 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
- 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: Isuzu Water Pumps · Isuzu Parts · All Water Pumps · Cooling & heating
Questions about Isuzu Ascender 5.3L water pump
Will this fit my Isuzu Ascender 5.3L?
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Where do specs and warranty details come from?
Questions & answers
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