8-94393439-6 / 8-97601153-1 Timing Gear & High Pressure Pump Gear Set for Isuzu 6HK1 Engine (61 Teeth)

Product Title
8-94393439-6 / 8-97601153-1 Timing Gear & High Pressure Pump Gear Set for Isuzu 6HK1 Engine (61 Teeth)

Product Overview
This timing gear and high pressure pump drive gear set is specially designed for the Isuzu 6HK1 engine series, consisting of two part numbers: 8-94393439-6 and 8-97601153-1, both with 61 teeth. The timing gear drives the camshaft, controlling engine valve timing, while the high pressure pump gear drives the fuel injection pump, ensuring precise synchronization of fuel injection timing with the engine operating cycle. Both gears are manufactured from high-quality alloy steel with precision hobbing and heat treatment, offering high wear resistance and extended service life – core transmission components of the engine valve train and fuel system.

Key Features

• Precision hobbing – High gear tooth accuracy for smooth engagement and low operating noise.

• Premium alloy steel – Gear teeth case-hardened with carburizing treatment for high hardness, wear resistance, and long service life.

• Matched set – Timing gear and pump gear supplied as a matched set to ensure compatible meshing parameters and accurate transmission.

• OEM specifications – Manufactured to Isuzu original technical drawings, with tooth count, module, pressure angle, and mounting dimensions fully matching original units.

• High reliability – Rigorous fatigue and durability testing for high-load, long-running operating conditions.

Technical Specifications

• Engine Model: Isuzu 6HK1

• Part Number (Timing Gear): 8-94393439-6

• Part Number (Pump Gear): 8-97601153-1

• Number of Teeth: 61

• Type: Timing Gear / High Pressure Pump Drive Gear

• Packaging: Set in individual packaging

Installation & Usage Tips

• Before installation, verify both part numbers (8-94393439-6 and 8-97601153-1) match your original units.

• Always align gear timing marks according to engine timing specifications to ensure accurate valve and injection timing.

• When replacing gears, it is recommended to inspect gear keyways and locating keys on the crankshaft and camshaft; replace if worn.

• Check gear backlash during installation – ensure it falls within specified range; excessive or insufficient backlash may affect engine performance.

• After installation, manually rotate the engine a few turns to confirm no binding or abnormal noise before starting.

Packaging & Delivery

• Each set comes in individual anti-rust packaging with a sturdy carton box.

• Adequate stock available; orders are shipped within 1–3 working days.