This final pinion bearing (30309D) is designed as a direct replacement for ISUZU NRR, NPR, and NQR trucks equipped with 4HK1 5.2L or 4JJ1 3.0L diesel engines, covering model years 1998 to 2026. Engineered to provide precise fitment, smooth rotation, and long-lasting durability, it ensures optimal drivetrain performance, reduces noise and vibration, and protects surrounding components under heavy-duty operation. Ideal for worn, noisy, or damaged final pinion bearings in commercial vehicles.

OEM-Equivalent Fit: Matches original factory specifications for correct alignment and reliable performance.

Truck-Specific Compatibility: Fits ISUZU NRR, NPR, and NQR (1998–2026) with 4HK1 5.2L or 4JJ1 3.0L diesel engines.

Durable & Heavy-Duty: Built to withstand high torque, repeated rotation, and commercial truck use.

Smooth & Quiet Operation: Reduces vibration and noise while maintaining precise pinion rotation.

Drivetrain Reliability: Maintains optimal performance and prevents premature wear of surrounding components.

Easy Installation: Direct replacement using factory mounting points; no modifications required.

OEM 

5098120621 / 1098120270

1098120260 / 9000936131

9000936010 / 9000313090

1098120290 / 5098120620

5098120630 / 9000936130