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{"title":"NPR 700P 4HK1 TURBO CHARGE 8980000311 8970786400","imgUrl":"https:\/\/img.chinax.com\/nimg\/bf\/e4\/ab2ffd604bc21336062bab1561b6-200x200-1\/npr_700p_4hk1_turbo_charge_8980000311_8970786400.jpg","attrs":{"Model Number":"NPR 700P 4HK1","Place of Origin":"China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
{"title":"NPR 4BD2 3.9L CYLINDER HEAD 8971030270","imgUrl":"https:\/\/img.chinax.com\/nimg\/c0\/a8\/bc770a27bfb7fb839df3007b51a1-200x200-1\/npr_4bd2_3_9l_cylinder_head_8971030270.jpg","attrs":{"Model Number":"NPR 4BD2","Place of Origin":"China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
Rocker Arm 8-98025059-4 For Isuzu 4JJ1 NKR NPR Engine 8980250594 Isuzu Truck Spare Parts
Product Overview
The Rocker Arm (OEM Numbers: 8-98025059-4 / 8980250594) is a premium-quality, direct replacement valvetrain component designed for Isuzu NKR and NPR series medium-duty trucks equipped with the 4JJ1 diesel engine.
Part Number:
8-98025059-4, 8980250594
Product Name:
Rocker Arm / Valve Rocker Arm
Car Model:
ISUZU NKR, NPR
Engine Model:
ISUZU 4JJ1 (3.0L Turbo Diesel)
Condition:
100% Brand New
Material:
High-strength aluminum alloy & precision bearings
Warranty:
6 Months
Function & Features
Function: Transfers motion from the camshaft or pushrod to the valve stem, opening and closing the engine valves at precise timing. Ensures efficient combustion and quiet valvetrain operation for Isuzu 4JJ1 diesel engines.
Key Advantages
OE Quality: Manufactured to Isuzu dimensional and material specifications for perfect fit and reliable valve actuation
Hardened Contact Pad: Wear-resistant surface reduces friction and extends service life
Precision Pivot Bore: Smooth operation on the rocker shaft
Lightweight yet Strong: Forged construction minimizes reciprocating mass
Restores Valvetrain Performance: Eliminates tapping noise, uneven valve lift, and power loss
Direct Replacement: Matches OE dimensions - simple installation
Cost-Effective: Affordable alternative to genuine OEM rocker arms
Vehicle Compatibility
This rocker arm is specifically designed for Isuzu NKR and NPR trucks with 4JJ1 engine.
Isuzu Truck Models:
ISUZU NKR (NKR55, NKR57, NKR59, NKR71 with 4JJ1)
ISUZU NPR (NPR66, NPR70, NPR71, NPR75 with 4JJ1)
Also fits Isuzu D-MAX, MU-X with 4JJ1 (verify)
Engine Specification - ISUZU 4JJ1:
4-Cylinder, Inline Diesel, DOHC, Common Rail, Turbocharged
Displacement: 3.0L (2999cc)
Installation Guide
Installation steps (overview for OHV engine):
Remove valve cover and any related components
Remove the rocker shaft assembly or individual rocker arm (depending on design)
Inspect the rocker shaft and pushrod for wear
Lubricate the new rocker arm's pivot bore and pad with engine assembly lube
Install the new rocker arm onto the shaft or pedestal. Ensure proper orientation (intake/exhaust)
Torque the rocker arm shaft bolts or adjustment nut to specification
Adjust valve lash to OE specification (typically 0.25-0.35mm cold for 4JJ1)
Install new valve cover gasket and reassemble
Start engine and check for abnormal noise
Re-check valve lash after warm-up if required
Quality Assurance
Material Verification: Forged steel alloy composition and hardness tested
Dimensional Inspection: Pad radius, pivot bore diameter, and overall length verified
Hardness Testing: Pad hardness (HRC 50-55) and core hardness checked
Visual Inspection: 100% checked for forging defects, burrs, or surface flaws
Packaged Safely: Wrapped in protective oil paper, sealed in plastic bag, boxed with foam
Packaging & Delivery
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
Contact Information
For pricing, availability, or bulk purchase of the Rocker Arm 8-98025059-4 For Isuzu 4JJ1 NKR NPR Engine 8980250594 Isuzu Truck Spare Parts, please contact our sales team for a competitive quote and expert technical support.
Yimi(Guangzhou) Automotive Parts Co,Ltd
located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality automotiv... Yimi(Guangzhou) Automotive Parts Co,Ltd
located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality automotiv...