Hardened Steel Rocker Arm Shaft Assembly with Precision-Drilled Oil Passages for Isuzu NPR59 4BD1 - OEM Standard Fitment
Key Attributes
Product Summary
OEM-quality rocker arm shaft assembly for Isuzu NPR59 with 4BD1 engine. Precision-ground hardened steel shaft with integrated oil passages ensures reliable valve actuation and lubrication. Direct replacement, heat-treated for durability.
Product Details
Hardened Steel Rocker Arm Shaft
,Precision-Drilled Oil Passages Rocker Arm
,OEM Standard Rocker Arm Shaft
| Part Number | WDL11-028, 8-94129551-0, 8941295510 |
| Product Name | Rocker Arm Shaft Assembly / Rocker Shaft |
| Car Model | ISUZU NPR59 |
| Engine Model | ISUZU 4BD1 (3.9L Diesel) |
| Condition | 100% Brand New |
| Size | Standard |
| Weight | Standard |
| Origin | China Mainland |
| Main Market | Middle East, Asia, Africa, South America, North America & Europe |
| Package | Neutral Packing Or Make It As Requested |
| Warranty | 6 Months |
| Price & Stock | Please Contact Us To Get More Information |
| Material | High-strength aluminum alloy & precision bearings |
| Cooling Type | Engine coolant circulation |
| Installation | Direct OEM replacement |
| Quality Standard | OEM equivalent / ISO quality control |
- OE Quality: Manufactured to Isuzu dimensional and metallurgical specifiions for perfect fit and reliable valve actuation.
- Precision Ground Shaft: Smooth, hardened surface reduces wear on rocker arm bushings.
- Integrated Oil Passages: Ensures consistent lubriion to all rocker arm pivot points.
- Complete Assembly: Includes shaft, rocker arms, springs, and retainers - ready to install.
- Heat-Treated: Induction-hardening provides wear resistance (HRC 55-60) while maintaining core toughness.
- Restores Valvetrain Performance: Eliminates tapping noise, uneven valve lift, and oil pressure loss.
- Direct Replacement: Matches OE bore spacing, mounting holes, and oil feed alignment.
- Cost-Effective: Affordable alternative to genuine OEM assemblies.
- Material Verifiion: Ensures metal brackets meet strength and corrosion-resistance standards.
- Damping Element Testing: Confirms proper elasticity and fluid integrity (where applicable).
- Dimensional Accuracy: Verified against OE specifiions for precise fit.
- Visual Inspection: 100% checked for cracks, defects, or manufacturing imperfections.
- Packaged Safely: Protected to prevent damage during transit.
- 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
For pricing, availability, or bulk purchase of the Rocker Arm Shaft Assembly WDL11-028 For Isuzu NPR59 4BD1 8-94129551-0 Truck Parts, please contact our sales team for a competitive quote and expert technical support.
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