High-strength Steel Heat-treated Driving Pinion Nut OEM Standard for Isuzu NPR58 4BD1 Differential
Key Attributes
Product Summary
High-strength steel driving pinion nut (8-94329526-1/8943295261) for Isuzu NPR58 4BD1 differential. Direct OEM replacement with heat-treated durability, precision threads, and reliable pinion retention. Restores differential integrity and eliminates gear noise.
Product Details
High-strength Steel Isuzu NPR58 pinion nut
,Heat-treated Isuzu 4BD1 differential nut
,OEM standard Isuzu truck pinion nut
| Part Number: | 8-94329526-1, 8943295261 |
| Product Name: | Driving Pinion Nut / Pinion Retaining Nut |
| Car Model: | ISUZU NPR58 |
| Engine Model: | ISUZU 4BD1 (3.9L Diesel) |
| Condition: | 100% Brand New |
| Origin: | China Mainland |
| Main Market: | Middle East, Asia, Africa, South America, North America & Europe |
| Warranty: | 6 Months |
- OE Quality: Manufactured to Isuzu dimensional and material specifiions for perfect fit and reliable pinion retention
- High-Strength Steel: Heat-treated to withstand high torque and axial loads
- Precision Threads: Ensures consistent torque appliion and secure fastening
- Restores Differential Integrity: Eliminates pinion looseness, gear noise, and bearing failure
- Direct Replacement: Matches OE thread and hex size
- Cost-Effective: Affordable alternative to genuine OEM nuts
- ISUZU NPR58 (medium-duty truck, 4BD1 engine)
- May also fit other Isuzu models with similar differential - verify compatibility
- 4-Cylinder, Inline Diesel
- Displacement: 3.9L (3856cc)
- Install the drive pinion with new bearings and crush sleeve into the differential housing
- Install the pinion flange and new pinion nut
- While rotating the pinion, torque the nut gradually to set pinion bearing preload
- Measure pinion rotating torque using an inch-pound torque wrench - adjust until within OE specifiion
- Do not back off the nut to reduce preload - if over-torqued, replace the crush sleeve and start over
- Stake or lock the nut as per OE procedure
- Material Verifiion: Steel composition and hardness tested
- Dimensional Inspection: Thread pitch, hex size, and overall dimensions verified
- Thread Gauge Inspection: GO/NO-GO thread verifiion
- Visual Inspection: 100% checked for defects
- Packaged Safely: Sealed in plastic bag, boxed with foam
- Neutral export packing or customized packaging available
- Carton or wooden case for safe transportation
- Fast delivery for stock items
- Shipping by Express Air or Sea
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