The Camshaft for Isuzu 4BD1 / 4BD2 Engine (Part No. 8944094120) is a precision-engineered OEM-grade component designed to deliver exceptional performance and reliability for Isuzu diesel engines. This camshaft plays a crucial role in controlling valve timing, optimizing fuel efficiency, and ensuring smooth combustion for consistent power output.
Manufactured from hardened alloy steel, this camshaft is heat-treated and ground to exact tolerances, guaranteeing perfect alignment and wear resistance under heavy-duty conditions. Ideal for both turbo and non-turbo diesel engine variants, it’s a perfect fit for NPR trucks, construction vehicles, and industrial engines using the Isuzu 4BD1 or 4BD2 powertrain.
Key Features:
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OEM replacement camshaft for Isuzu 4BD1 / 4BD2 engines
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Part Number: 8944094120
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Precision-ground lobes for accurate valve timing
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Made from hardened, heat-treated alloy steel
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Engineered for durability and reduced wear
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Compatible with Isuzu NPR, NQR, and industrial applications
Applications:
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Isuzu 4BD1 and 4BD2 diesel engines
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Isuzu NPR / NQR trucks (1985–1998 models)
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Industrial and construction machinery with 4BD-series engines
Benefits:
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Restores original engine performance
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Improves combustion and fuel efficiency
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Reduces engine noise and wear
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Ensures smooth and consistent valve operation
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Long-lasting OEM reliability and performance
Frequently Asked Questions (FAQ)
What is the function of the camshaft in an Isuzu 4BD1 or 4BD2 engine?
The camshaft controls the opening and closing of the intake and exhaust valves, ensuring proper engine timing and combustion efficiency.
Is this camshaft compatible with both 4BD1 and 4BD2 engines?
Yes, this camshaft (part number 8944094120) is designed to fit both Isuzu 4BD1 and 4BD2 diesel engines found in NPR and NQR trucks.
What material is the camshaft made from?
The camshaft is made from high-strength, heat-treated alloy steel for superior wear resistance and durability under heavy-duty use.
How can I tell if my camshaft needs replacing?
Common signs include rough idling, misfires, loss of power, ticking noises, or visible wear on cam lobes. Replacing it restores smooth valve timing and performance.
Does this camshaft include bearings or other accessories?
No, this product includes the camshaft only. Bearings, seals, and other components can be purchased separately as part of a rebuild kit.
Where can I buy the Isuzu 4BD1 / 4BD2 camshaft?
You can buy this OEM camshaft (8944094120) from authorized Isuzu dealers, diesel parts suppliers, or trusted online automotive marketplaces.




