ISO9001 Certified Metal-Based Composite Cylinder Head Gasket with OEM Part Numbers 8-94145839-0, 8941458390 for ISUZU NPR59 4BD1 Diesel Engine

This cylinder head gasket, carrying OEM numbers 8-94145839-0 and 8941458390, seals the combustion chamber between the cylinder head and engine block on ISUZU 4BD1 3.9L diesel engines. It serves as a direct replacement for NPR59 trucks equipped with the naturally aspirated or turbocharged 4BD1/4BD1T engines.

The gasket withstands compression pressures generated by the 4BD1 engine, which produces up to 135 horsepower at 3,000 rpm and torque reaching 243 lb-ft at 1,800 rpm. The 3.856-liter inline four-cylinder diesel engine uses a cast-iron block and cast-iron head combination that demands a precisely engineered sealing solution.

This cylinder head gasket fits ISUZU NPR59 trucks equipped with the 4BD1 or 4BD1T 3.9L diesel engine, model years 1984 through 1994. The NPR59 chassis represents a widely distributed medium-duty truck platform used in last-mile delivery, construction support, and municipal fleet operations.

Compatible Vehicles & Equipment:

• ISUZU NPR (NPR59, NPR58, NPR57)
• ISUZU NQR and NPS series
• ISUZU Forward 4000 / TiltMaster W4 models
• Chevrolet W4500 / W4 series (1986–1991)
• Hitachi excavator models: EX100, EX120, EX90, EX150
• JCB excavator models: JS110, JS130, JS150
• Kobelco excavator models: SK120

• OEM-Number Matching Precision - Direct parts catalog lookup with multiple cross-reference numbers
• Compatible with Both Naturally Aspirated and Turbocharged 4BD1 - Handles both power levels and cylinder pressures
• ISO9001-Certified Production - Batch traceability and dimensional verification
• Metal-Based Construction - Withstands diesel engine compression ratios and thermal cycling
• Cross-Industry Compatibility - Fits both truck and heavy machinery applications

Each production batch undergoes dimensional inspection using laser measurement equipment, verifying fire ring placement, bolt hole alignment, and gasket thickness against ISUZU's original engineering drawings. Random samples are subjected to compression testing on hydraulic presses to measure sealing integrity across temperature ranges.

• Individual Packaging: Moisture-resistant plastic bag in foam-lined carton (55 × 30 × 2 cm)
• Unit Weight: Approximately 0.5 kg per gasket
• Gross Weight: Approximately 1.0 kg per carton
• Lead Time: 3–7 working days
• MOQ: 1 piece
• Shipping Methods: FedEx, UPS, DHL, sea freight (LCL/FCL)