Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
Your message must
be between 20-3,000 characters!
Submit Requirement
Thank You！
Your requirement has been sent. we will contact you quickly!
{"title":"Power Steering Idler Pulley Metal (Steel) OEM Direct-Fit Replacement for ISUZU","imgUrl":"https:\/\/img.chinax.com\/nimg\/fa\/3e\/8795f61f47881c5f0bc22bc7785c-200x200-1\/power_steering_idler_pulley_metal_28steel_29_oem_direct_fit_replacement_for_isuzu.jpg","attrs":{"Net Weight":"0.6 kg","Model Number":"NHR NKR 100P 4JB1","Installation Position":"Power steering pump drive belt system","Minimum Order Quantity":"20 PCS"}}
{"title":"ISUZU C240 VALVE ROCKER ARM 9126113490","imgUrl":"https:\/\/img.chinax.com\/nimg\/fc\/e5\/2d0d41fb7f3d502843fd768e1e28-200x200-1\/isuzu_c240_valve_rocker_arm_9126113490.jpg","attrs":{"Model Number":"C240","Place of Origin":"Made in China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
{"title":"ISUZU TFR68 69 ENGINE MOUNTING R 8970391890","imgUrl":"https:\/\/img.chinax.com\/nimg\/7b\/f1\/8998370f517b467e4c20c8df2ac9-200x200-1\/isuzu_tfr68_69_engine_mounting_r_8970391890.jpg","attrs":{"Model Number":"TFR68 69","Place of Origin":"Made in China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
{"title":"ISUZU TFR68 69 RUBBER ENG FOO L 5876101930 8970860761","imgUrl":"https:\/\/img.chinax.com\/nimg\/68\/26\/7c7f4c50909a3695c90b2db58900-200x200-1\/isuzu_tfr68_69_rubber_eng_foo_l_5876101930_8970860761.jpg","attrs":{"Model Number":"TFR68 69","Place of Origin":"Made in China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
{"title":"ISUZU DMAX 4JA1 T H1 GEAR TIMING 52 8979427551","imgUrl":"https:\/\/img.chinax.com\/nimg\/dc\/8f\/faca408a6e5c150d63ac2adb933f-200x200-1\/isuzu_dmax_4ja1_t_h1_gear_timing_52_8979427551.jpg","attrs":{"Model Number":"DMAX 4JA1 T H1","Place of Origin":"Made in China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
{"title":"ISUZU NHR 4JA1 DMAX CRANKSHAFT 8944552401","imgUrl":"https:\/\/img.chinax.com\/nimg\/e2\/3f\/ae38ad12211136e0e8ec331c8536-200x200-1\/isuzu_nhr_4ja1_dmax_crankshaft_8944552401.jpg","attrs":{"Brand Name":"YIMI","Supply Ability":"10000pcs\/month","Delivery Time":"15-20 days after deposit","Packaging Details":"1, neutral box , 2, color box, 3, customer brand package"}}
{"title":"ISUZU NKR KY 4JB1 CRANKSHAFT 8944436620 1005011BBA1","imgUrl":"https:\/\/img.chinax.com\/nimg\/ef\/20\/c9299ee3da59c593a2e0493b8470-200x200-1\/isuzu_nkr_ky_4jb1_crankshaft_8944436620_1005011bba1.jpg","attrs":{"Brand Name":"YIMI","Supply Ability":"10000pcs\/month","Delivery Time":"15-20 days after deposit","Packaging Details":"1, neutral box , 2, color box, 3, customer brand package"}}
Power Steering Idler Pulley 8-94128866-0 8941288660 for ISUZU NHR NKR 100P 4JB1 Diesel Engine
Power Steering Idler Pulley 8-94128866-0 8941288660 for ISUZU NHR NKR 100P NKR55 4JB1 4JH1 4JG2 Diesel Engine — OEM Equivalent Direct-Fit Replacement with 1-Year Warranty
The Power Steering Idler Pulley with OEM numbers 8-94128866-0 / 8941288660 is a verified direct-fit replacement for ISUZU NHR, NKR, 100P, NKR55 and related models equipped with the 4JB1 / 4JH1 / 4JG2 diesel engine. This idler pulley is a critical component of the power steering belt drive system, responsible for maintaining correct tension and alignment of the power steering pump drive belt, ensuring stable hydraulic assist output across all engine speeds.
Verifiable Specifications
Weight Specification: Net weight 0.6 kg, package volume 0.0007 m³ — based on product measurement data
Data Note: This product currently lacks bearing durability bench-test data and installation success rate statistics from fleet tracking. These should be supplemented after batch production testing. Industry standards referenced include ISO 9001 quality management system and ISUZU OEM workshop manual specifications.
Failure Symptoms (Indicating Idler Pulley Replacement Is Needed)
Sharp squealing or chirping noise from engine bay — Worn bearing loses lubrication, causing high-frequency metal-on-metal friction noise, especially noticeable on cold start
Intermittent power steering assist or hard steering — Idler pulley binding or belt slippage causes unstable pump speed, reducing hydraulic assist output
Belt misalignment, edge wear, or belt throwing — Excessive bearing clearance causes pulley wobble, moving the belt off its correct running path
Metallic grinding sound at idle or during steering — Severely worn bearing races or balls create metal interference noise during rotation
Abnormal pulley wobble or binding when rotated by hand — Feeling play, notching, or roughness when spinning the pulley by hand indicates the bearing has reached its service limit
Part Number
8-94128866-0 8941288660
Product Name
Power Steering Idler Pulley
Car Model
NHR NKR 100P
Engine Model
4JB1
Condition
100% Brand New
Origin
China Mainland
Main Market
Middle East, Asia, Africa, South America, North America & Europe
Material
High-strength aluminum alloy & precision bearings
Installation
Direct OEM replacement
Quality Standard
OEM equivalent / ISO quality control
Vehicle & Engine Compatibility
Brand
Model
Chassis/Years
Engine
ISUZU
NKR55
NKR(93-)
4JB1 / 4JB1T
ISUZU
NHR
NHR(94-)
4JB1 / 4JB1T
ISUZU
100P
100P
4JB1 / 4JB1T
ISUZU
NLR / NMR
NLR/NMR(08-)
4JH1 / 4JG2
ISUZU
NPR / NQR
NPR/NQR(94-02)(04-)
4JB1 / 4JG2
ISUZU
QKR
QKR(11-)
4JB1
ISUZU
ELF100 (Mexico)
(16-)
4JB1
JMC
1040 / 1050 / 1060
—
4JB1
Important Notes:
Before ordering, verify that the mounting hole pattern, belt groove profile, and pulley diameter match your original idler pulley
The 4JB1 and 4JB1T share identical idler pulley specifications and are interchangeable
For fitment confirmation, please provide VIN number or engine nameplate photo
Features & Benefits
Feature
Benefit + Verification Signal
Steel construction
High strength and fatigue resistance, maintaining stable operation under high-temperature and high-vibration engine bay conditions — based on industry-standard steel idler pulley performance criteria
Precision bearing assembly
Ensures smooth pulley rotation, reducing belt wear and noise — qualified by smooth rotation without binding or play
OEM direct-fit
Mounting holes and belt groove profile match OEM specifications, requiring no additional machining
ISUZU + JMC dual-platform compatibility
One part number covers multiple ISUZU and JMC light truck models, reducing inventory SKU management complexity
Manual rotation test for binding, play, or abnormal noise
Belt groove profile & diameter
Contour gauge/caliper measurement for belt matching
Weight verification
Weighing against standard value of 0.6 kg
Packaging integrity
Piece-by-piece packaging inspection
Installation & Maintenance Recommendations
IMPORTANT: Disconnect the negative battery terminal before installation. Ensure the engine is completely cool. Professional installation is strongly recommended.
Installation Guidelines
(Refer to ISUZU 4JB1 workshop manual for exact specifications):
Release the power steering pump drive belt tensioner and remove the belt
Remove the old idler pulley mounting bolt and take out the old pulley
Clean the mounting surface; inspect the mounting bolt for wear or stretching
Install the new idler pulley in position; tighten the mounting bolt to specified torque (refer to workshop manual)
Reinstall the belt and adjust tension to specification
Start the engine and check for smooth belt operation, abnormal noise, or belt misalignment
Maintenance Schedule
Inspect idler pulley rotation flexibility and belt tension every 20,000 km
Inspect bearing condition at 80,000–100,000 km or upon abnormal noise or reduced steering assist
Under normal maintenance conditions, 4JB1 idler pulleys can exceed 80,000 km service life (varies by operating conditions and maintenance 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 ... 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 ...
