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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 Shaft 8-97036197-0 8-94152346-0 For ISUZU NKR55 4JB1 Engine 8970361970 8941523460
Product Overview
The Rocker Arm Shaft (OEM Numbers: 8-97036197-0 / 8-94152346-0 / 8970361970 / 8941523460) is a premium-quality, direct replacement engine valvetrain component designed specifically for ISUZU NKR55 series light-duty trucks equipped with 4JB1 diesel engines. This precision-ground shaft serves as the mounting and pivot point for the rocker arms, which transmit motion from the camshaft and pushrods to open and close the engine's intake and exhaust valves.
Direct Replacement: Matches OE shaft dimensions and mounting configuration
Essential for Overhaul: Critical component to replace during top-end engine rebuilds
Vehicle & Engine Compatibility
This rocker arm shaft is specifically designed for ISUZU light-duty trucks and commercial vehicles. Common applications include:
ISUZU NKR55 (Light-Duty Trucks)
ISUZU 4JB1 Engine Specifications:
4-Cylinder, Inline Diesel
Displacement: 2.8L
Valvetrain: OHV
Application: Light-duty trucks and commercial vehicles
Also compatible with various ISUZU models using the 4JB1 engine with the same rocker shaft configuration
Installation Notes
Professional mechanic or engine builder installation recommended:
Remove the valve cover - Unbolt and remove the valve cover to access the rocker assembly
Loosen rocker arm adjusting screws - Back off all valve lash adjusters to release pressure on the rocker arms
Remove the rocker shaft assembly - Unbolt the rocker shaft brackets and lift the complete assembly
Disassemble rocker arms - Remove rocker arms, springs, and brackets from the old shaft in correct order
Clean all components - Clean rocker arms and brackets; remove old oil and debris
Inspect rocker arms and bushings - Check for wear, scoring, or damage; replace if necessary
Lubricate new shaft - Apply clean engine oil or assembly lube to the new shaft surface
Assemble rocker arms on new shaft - Install rocker arms, springs, and brackets in the correct order and orientation
Install shaft assembly - Position the assembled rocker shaft on the cylinder head; align mounting brackets
Torque bracket bolts - Tighten mounting bolts to manufacturer torque specifications in the correct sequence
Adjust valve clearances - Set valve lash (clearance) per manufacturer specifications using a feeler gauge
Reinstall the valve cover - Install a new gasket and reinstall the valve cover with proper torque
Start and test - Start the engine; listen for abnormal valvetrain noise; recheck clearances if necessary
Quality Control
Material Verification: Confirms alloy steel composition meets ISUZU strength and wear resistance specifications
Hardness Testing: Induction-hardened bearing surfaces tested to ensure proper hardness
Dimensional Inspection: Shaft diameter, length, and oil hole positioning verified within OEM tolerances
Surface Finish Inspection: Bearing surfaces checked for proper smoothness and finish
Visual Inspection: 100% checked for machining defects, cracks, or surface imperfections
Packaged Safely: Protected with rust inhibitor and packaged to prevent damage during transit
Packaging and 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
Inquiry
For pricing, availability, or bulk purchase of the Rocker Arm Shaft 8-97036197-0 8-94152346-0 For ISUZU NKR55 4JB1 Engine 8970361970 8941523460, 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 ... 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 ...
