Gates 42239HD water pump for the 1998-2004 Isuzu NPR 4-cylinder 4.8L and other vehicles circulates coolant through the engine. The HD suffix in the part number marks it as a Gates heavy-duty pump.
- Designed to handle severe and rigorous conditions
- Unitized bearings and seals, each given a 100 percent functional test
- 100 percent leakage test of both the casting and the assembled pump
- Computerized machined surfaces for proper fit and sealing
- Cast iron housing and cast iron impeller
Quick facts
- Part: Gates 42239HD water pump
- Also called: engine water pump
- Fits: 1998-2004 Isuzu NPR 4-cylinder 4.8L and other vehicles
- Material: Cast iron (housing and impeller)
- Condition: New
A coolant leak near the pump, a whine or grinding from the bearing area, or an engine that runs hot can mean the water pump is wearing out. These signs alone do not prove the pump is at fault, since a stuck thermostat can also make an engine run hot.
Fits
This water pump is a direct-fit replacement for the 1999-2004 Isuzu NPR-HD 4-cylinder 4.8L and the 1999-2004 Chevrolet W3500 Tiltmaster 4-cylinder 4.8L, among other vehicles. The 1998-2004 Isuzu NPR 4-cylinder 4.8L takes one pump.
Specifications
Fit and size
- Quantity per vehicle: 1
- Drive type: accessory belt (not timing belt driven)
- Impeller rotation: standard
Build and materials
- Housing material: cast iron
- Impeller material: cast iron
- Condition: new
- Gates warranty: 18 months or 150,000 miles/5,400 hours, whichever comes first
- Country of origin: China
In the box
One water pump and one gasket. The pulley, fan clutch, back housing, and thermostat and housing are not included.
Interchange: 140-1420
DP1767 · 8971492370 · 8973141180 · 8981984630 · 942239HD
This part cross-references / interchanges with the following part numbers:
42239HD, DP1767, 140-1420, 8971492370, 8973141180, 8981984630, 942239HD
Frequently Asked Questions
Is the Gates 42239HD the right NPR pump for a 1998-2004 Isuzu NPR 4-cylinder 4.8L?
Yes, Gates 42239HD fits the 1998-2004 Isuzu NPR 4-cylinder 4.8L and the 1999-2004 Isuzu NPR-HD 4-cylinder 4.8L; if your vehicle is neither, look it up in the "Vehicles it fits" section.
Does the Gates 42239HD include the pulley?
No. The Gates 42239HD comes with the water pump and a gasket; the pulley, fan clutch, back housing, and thermostat and housing are not included.
Is this engine water pump driven by the accessory belt or the timing belt?
It is driven by the accessory belt. The pump is not timing belt driven.
How can I tell if this water pump's seal or bearing is going bad?
Coolant weeping at the pump, or a whine or grinding from the pump area while driving, can point to a worn seal or bearing. Look only with the engine off and cool; a shop can pressure-test the system.
Does the Gates 42239HD replace the 140-1420 water pump?
Yes. The Gates 42239HD is listed as a replacement for 140-1420, and it also replaces DP1767 and 8971492370.
