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SKU:
NLT2T01769
Ships for free in 2–4 business days.
Water Pump for Isuzu 4JA1 4JB1 4JB1T 4JG1 4JG2 Engines – 8-94419-461-2
$92.59
In Stock
$92.59
Sale price
$92.59
Regular price
This engine water pump cross-references Isuzu 8-94419-461-2 for compatible 4JA1, 4JB1, 4JB1T, 4JG1 and 4JG2 diesel engines.
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I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
| Brand / Equipment | Compatible Models / Engines | Fitment Notes |
|---|---|---|
| Isuzu | 4JA1, 4JB1, 4JB1T | Diesel engines |
| Isuzu | 4JG1, 4JG2 | Diesel engines |
Product Overview
The Isuzu 4J family appears in trucks, excavators, loaders and industrial equipment. The water pump circulates coolant through the block/head and radiator; a failed seal, bearing or impeller can lead to coolant loss, pump noise, pulley play or overheating.
Because the same engine family was supplied in many equipment configurations, match the 8-94419-461-2 reference and compare the pump casting, hub/pulley arrangement and coolant connections before ordering.
Key Features & Performance
- Engine water pump for Isuzu 4J-series diesel applications
- Cross-reference 8-94419-461-2
- Supports both naturally aspirated and listed turbocharged 4JB1T applications when the original pump matches
Reference Part Numbers
- 8-94419-461-2
- 8944194612
Product Details
- Component: Engine water pump
What to Verify Before Ordering
Confirm engine serial/application and compare pump casting, bolt pattern, hub and hose connections to the original.
Frequently Asked Questions
Will this fit an Isuzu 4JB1T turbo engine?
The original product application includes 4JB1T, but the pump number and physical configuration should still be verified.
What should be replaced with a leaking water pump?
Use the correct gasket/seal and fresh coolant, and inspect the belt, pulley and thermostat/cooling system while access is available.