Product Features
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Genuine ACDelco Water Pump Kit – ACWP1100
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GM Part Number: 19282043
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OEM-quality coolant pump assembly
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Designed for reliable engine cooling performance
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Direct replacement for original factory components
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Suitable for Holden and Isuzu diesel engines listed below
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Supplied by an Authorised ACDelco Platinum Dealer
Includes
All components are genuine ACDelco parts designed for direct fitment.
Compatibility (Engines / Vehicles)
Holden Jackaroo (UBS)
Holden Rodeo (RA / TF / TFS / KB)
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2.5L Diesel (4JA1) — 1988 to 2004
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2.8L Diesel (4JB1 / 4JB1T) — 1990 to 2003
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3.0L Diesel (4JH1TC / 4JH1) — 2003 to 2007
(Covers DX / LX / LT / Sport / Cab Chassis / Crew Cab variants)
Isuzu Bighorn
Isuzu MU / MU-X (Early MU)
Isuzu Elf (N-Series)
Isuzu NKR / NPR Truck
⚠️ Important:
Fitment depends on engine code and build date. These engines were used across multiple models and markets — please confirm with VIN if unsure.
Description
The ACDelco ACWP1100 Water Pump Kit (GM 19282043) is designed to provide reliable coolant circulation for a wide range of Holden and Isuzu diesel engines, including the well-known 4JA1, 4JB1, 4JB1T and 4JH1 platforms.
These engines are widely used in utes, SUVs and light commercial vehicles, where reliable cooling is critical for long-term durability. A worn or leaking water pump can lead to overheating, coolant loss and potential engine damage.
Replacing with a genuine ACDelco unit ensures correct fitment, durability and dependable performance in demanding conditions.
Why Choose Genuine ACDelco
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OEM-quality components
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Designed for precise fit and durability
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Trusted by workshops and technicians
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Reliable cooling system performance
