logo
Products
PRODUCTS DETAILS
Home > Products >
OEM-grade Compressor Idler Pulley Assembly for ISUZU 4JJ1 and 4JK1 Engines with Precision-Balanced Construction
Products

Isuzu Cars Parts

Isuzu Engine Parts

Isuzu Chassis Parts

ISUZU Truck Parts

VW Car Parts

AUDI Car Parts

QINGLING ISUZU Parts

NISSAN Spare Parts

MITSUBISHI Auto Parts

FUSO Truck Parts

TOYOTA Auto Parts

HINO Truck Parts

HONDA Auto Parts

MAZDA Spare Parts

JAC Spare Parts

JMC Spare Parts

FORD Auto Parts

HYUNDAI Auto Parts

KIA Auto Parts

Other Auto Parts
Contact Us
james@yimiautoparts.com
+86-17820569171
Contact Now
OEM-grade Compressor Idler Pulley Assembly for ISUZU 4JJ1 and 4JK1 Engines with Precision-Balanced Construction
  • name
  • name
  • name

OEM-grade Compressor Idler Pulley Assembly for ISUZU 4JJ1 and 4JK1 Engines with Precision-Balanced Construction

MOQ: 20 pcs
Price: Negotiable
Standard Packaging: Neutral Package or as customers’ request
Delivery Period: 5-8 Work Days
Payment Method: T/T,Western Union
Supply Capacity: 10000 pcs/month
Detail Information
Product Description
Detail Information
Place of Origin
China
Brand Name
YIMI
Certification
ISO/TS16949
Model Number
ISUZU D-MAX 4JJ1 4JK1
Part Name:
Compressor Idler Pulley Assembly / Tensioner Pulley / V-Belt Tensioner Pulley
OEM Part Numbers:
8-98114437-0, 8981144370, 8-98051011-0, 8980510110
Engine Compatibility:
ISUZU 4JJ1, 4JK1
Material:
High-strength Aluminum Alloy & Precision Bearings
Cooling Type:
Engine Coolant Circulation
Installation:
Direct OEM Replacement
Quality Standard:
OEM Equivalent / ISO Quality Control
Engine Details:
ISUZU 4JJ1 -- 3.0L, 4-cylinder, Common Rail Turbo Diesel, ISUZU 4JK1 -- 2.5L, 4-cylinder, Common Rail Turbo Diesel
Highlight:

OEM ISUZU compressor idler pulley

,

4JJ1 engine idler pulley assembly

,

precision-balanced ISUZU pulley assembly

Product Description
Compressor Idler Pulley Assembly 8-98114437-0 / 8-98051011-0 for ISUZU — OEM Belt Tensioner Pulley

The Compressor Idler Pulley Assembly with OEM reference numbers 8-98114437-0 and 8-98051011-0 (also 8981144370 and 8980510110) is a verified direct-fit replacement for a wide range of ISUZU vehicles equipped with the 4JJ1 and 4JK1 engines. This pulley is a critical component of the engine's accessory drive belt system, designed to maintain proper belt tension and ensure reliable operation of the air conditioning compressor and other belt-driven accessories.

The idler pulley, also known as an intermediate pulley, serves as a guide for the drive belt, maintaining proper tension and alignment. A worn or failing idler pulley can lead to belt squeal, reduced A/C performance, overheating, and potential belt failure that could leave you stranded.

This OE-spec replacement assembly restores proper belt tension and accessory drive operation. Manufactured to meet or exceed original equipment standards, this pulley assembly delivers reliable performance under demanding operating conditions.

Part Number 8-98114437-0 / 8-98051011-0
Product Name Compressor Idler Pulley
Car Model ISUZU D-MAX, TFUC, N-Series
Engine Model ISUZU 4JJ1, 4JK1
Condition 100% Brand New
Weight Standard
Origin China Mainland
Main Market Middle East, Asia, Africa, South America, North America & Europe
Package Neutral Packing Or Make It As Requested
Material High-strength aluminum alloy & precision bearings
Cooling Type Engine coolant circulation
Installation Direct OEM replacement
Quality Standard OEM equivalent / ISO quality control
ISUZU Compressor Idler Pulley Assembly - OEM replacement part
Vehicle Compatibility

Primary Applications (ISUZU 4JJ1 / 4JK1 Engines):

Model Engine / Notes
ISUZU D-MAX 4JJ1, 4JK1 (2004-2011)
ISUZU TFUC Pickup / Utility
ISUZU N-Series (NKR, NHR, NPR, NQR) 4JJ1, 4JK1
ISUZU ELF / 100P / 600P / 700P 4JJ1, 4JK1
ISUZU TFR / TFS D-MAX platform

Engine Details:

  • ISUZU 4JJ1 - 3.0L, 4-cylinder, common rail turbo diesel
  • ISUZU 4JK1 - 2.5L, 4-cylinder, common rail turbo diesel
Important: This idler pulley assembly is specifically designed for the air conditioning compressor drive belt system on ISUZU vehicles with 4JJ1 and 4JK1 engines. It is listed as "PULLEY ASM IDL" (Idler Pulley Assembly) for the A/C compressor in ISUZU parts catalogs. Always verify your vehicle's chassis code and original part number before ordering. When in doubt, consult your vehicle's workshop manual or provide your VIN to confirm compatibility.
Common Failure Symptoms
Symptom Description
Belt squeal or chirping Noise from the drive belt area, especially on startup or under load
A/C compressor not engaging Insufficient belt tension causes the A/C compressor to slip or not engage
Visible wear or damage Cracks, pitting, or roughness on the pulley surface
Bearing noise Grinding or rumbling sound from the pulley area
Belt wear or fraying Misalignment caused by a worn idler pulley
Ignoring a failing idler pulley can lead to:
  • Complete belt failure and loss of A/C, power steering, or alternator function
  • Overheating due to water pump not being driven
  • Compressor damage from belt debris
  • Costly repairs and vehicle downtime
Features & Benefits
OEM-grade / OE-spec quality
Manufactured to original equipment standards — ensures perfect fit and reliable performance
Precision-balanced, high-strength construction
Maximizes belt contact, eliminates slippage, and reduces harmonic vibration — extends belt and bearing life
Direct OE replacement
No modifications required — matches factory mounting points and specifications precisely
Restores proper belt tension
Eliminates belt squeal and ensures reliable A/C and accessory operation
Prevents component failure
Replaces worn pulleys before they cause belt failure or damage to other components
Comprehensive cross-reference
Matches multiple OEM numbers (8-98114437-0, 8981144370, 8-98051011-0, 8980510110) — simplifies sourcing
Wide application range
Fits ISUZU D-MAX, N-Series trucks, ELF, and more — versatile for workshops and distributors
Quality Control & Verification
QC Item Verification Method
Dimensional accuracy Precision inspection against OE blueprint — ensures proper fit on ISUZU 4JJ1/4JK1 engines
Bearing integrity Spin and load testing — verifies smooth operation and load capacity
Surface finish Visual and dimensional inspection — ensures proper belt contact
Balance Dynamic balancing — reduces vibration and extends belt life
Material quality High-grade materials verification — heat and wear resistance
Batch traceability Each production batch documented with quality certificates
Installation & Maintenance Recommendations
IMPORTANT: Idler pulley replacement requires mechanical competence and proper safety precautions. Professional installation recommended.

Installation Guidelines (Reference ISUZU workshop manual for complete steps):

  1. Safety first — allow engine to cool completely before starting work
  2. Disconnect battery negative terminal
  3. Release belt tension following the workshop manual procedure
  4. Remove the drive belt from the idler pulley
  5. Remove the mounting bolt securing the idler pulley
  6. Remove the old pulley assembly
  7. Compare the new pulley with the old unit — verify part number matches
  8. Inspect the mounting bracket for wear or damage
  9. Install the new idler pulley assembly
  10. Torque mounting bolt to manufacturer specification
  11. Reinstall the drive belt — ensure correct routing
  12. Adjust belt tension to factory specification
  13. Reconnect battery
  14. Start engine and verify smooth operation — no squeal or noise

Maintenance Schedule:

  • Inspect the idler pulley for wear, noise, or play during every service
  • Replace the idler pulley if there is any sign of wear or bearing roughness
  • Replace the drive belt when replacing the idler pulley
  • Check belt tension regularly to prevent premature pulley wear
Packaging & Supply
  • Individually sealed in protective packaging
  • Neutral packaging or custom branding available upon request
  • Sold individually
  • Bulk wholesale available in master cartons
  • Suitable for: ISUZU specialist repair shops, commercial vehicle maintenance depots, 4x4 off-road centers, auto parts distributors
Tags: 

isuzu head gasket,  

isuzu dmax parts,  

isuzu nkr parts

Recommended Products
Wholesale Water Pump for ISUZU CXZ C223 Trucks 8942512510 8-94251251-0

Wholesale Water Pump for ISUZU CXZ C223 Trucks 8942512510 8-94251251-0

Contact Now
Upper Control Arm Ball Joint Assembly for ISUZU 4JA1 TFR54 8944594530 8-94459453-0

Upper Control Arm Ball Joint Assembly for ISUZU 4JA1 TFR54 8944594530 8-94459453-0

Contact Now
Lower Control Arm Ball Joint Assembly for ISUZU UCS17 TFR 4ZE1 8944594652 8980058750 8-94459465-2 8-98005875-0

Lower Control Arm Ball Joint Assembly for ISUZU UCS17 TFR 4ZE1 8944594652 8980058750 8-94459465-2 8-98005875-0

Contact Now
Differential Pinion Pin for ISUZU TFR UBS 4JB1 4ZE1 8944353080 8-94435308-0

Differential Pinion Pin for ISUZU TFR UBS 4JB1 4ZE1 8944353080 8-94435308-0

Contact Now
Final Pinion Bearing 9-00093078-0 9000930780 TR0608A for ISUZU TFR54 4JA1

Final Pinion Bearing 9-00093078-0 9000930780 TR0608A for ISUZU TFR54 4JA1

Contact Now
Standard Size Isuzu Cars Parts TFR17 4ZE1 Head Gasket 8941742790

Standard Size Isuzu Cars Parts TFR17 4ZE1 Head Gasket 8941742790

Contact Now
Aftermarket Isuzu C240 Head Gasket CYL HD 5111410691 5111410172

Aftermarket Isuzu C240 Head Gasket CYL HD 5111410691 5111410172

Contact Now
Products
PRODUCTS DETAILS
Products

Isuzu Cars Parts

Isuzu Engine Parts

Isuzu Chassis Parts

ISUZU Truck Parts

VW Car Parts

AUDI Car Parts

QINGLING ISUZU Parts

NISSAN Spare Parts

MITSUBISHI Auto Parts

FUSO Truck Parts

TOYOTA Auto Parts

HINO Truck Parts

HONDA Auto Parts

MAZDA Spare Parts

JAC Spare Parts

JMC Spare Parts

FORD Auto Parts

HYUNDAI Auto Parts

KIA Auto Parts

Other Auto Parts
OEM-grade Compressor Idler Pulley Assembly for ISUZU 4JJ1 and 4JK1 Engines with Precision-Balanced Construction
  • name
  • name
  • name
OEM-grade Compressor Idler Pulley Assembly for ISUZU 4JJ1 and 4JK1 Engines with Precision-Balanced Construction
MOQ: 20 pcs
Price: Negotiable
Standard Packaging: Neutral Package or as customers’ request
Delivery Period: 5-8 Work Days
Payment Method: T/T,Western Union
Supply Capacity: 10000 pcs/month
Detail Information
Product Description
Detail Information
Place of Origin
China
Brand Name
YIMI
Certification
ISO/TS16949
Model Number
ISUZU D-MAX 4JJ1 4JK1
Part Name:
Compressor Idler Pulley Assembly / Tensioner Pulley / V-Belt Tensioner Pulley
OEM Part Numbers:
8-98114437-0, 8981144370, 8-98051011-0, 8980510110
Engine Compatibility:
ISUZU 4JJ1, 4JK1
Material:
High-strength Aluminum Alloy & Precision Bearings
Cooling Type:
Engine Coolant Circulation
Installation:
Direct OEM Replacement
Quality Standard:
OEM Equivalent / ISO Quality Control
Engine Details:
ISUZU 4JJ1 -- 3.0L, 4-cylinder, Common Rail Turbo Diesel, ISUZU 4JK1 -- 2.5L, 4-cylinder, Common Rail Turbo Diesel
Minimum Order Quantity:
20 pcs
Price:
Negotiable
Packaging Details:
Neutral Package or as customers’ request
Delivery Time:
5-8 Work Days
Payment Terms:
T/T,Western Union
Supply Ability:
10000 pcs/month
Highlight

OEM ISUZU compressor idler pulley

,

4JJ1 engine idler pulley assembly

,

precision-balanced ISUZU pulley assembly

Product Description
Compressor Idler Pulley Assembly 8-98114437-0 / 8-98051011-0 for ISUZU — OEM Belt Tensioner Pulley

The Compressor Idler Pulley Assembly with OEM reference numbers 8-98114437-0 and 8-98051011-0 (also 8981144370 and 8980510110) is a verified direct-fit replacement for a wide range of ISUZU vehicles equipped with the 4JJ1 and 4JK1 engines. This pulley is a critical component of the engine's accessory drive belt system, designed to maintain proper belt tension and ensure reliable operation of the air conditioning compressor and other belt-driven accessories.

The idler pulley, also known as an intermediate pulley, serves as a guide for the drive belt, maintaining proper tension and alignment. A worn or failing idler pulley can lead to belt squeal, reduced A/C performance, overheating, and potential belt failure that could leave you stranded.

This OE-spec replacement assembly restores proper belt tension and accessory drive operation. Manufactured to meet or exceed original equipment standards, this pulley assembly delivers reliable performance under demanding operating conditions.

Part Number 8-98114437-0 / 8-98051011-0
Product Name Compressor Idler Pulley
Car Model ISUZU D-MAX, TFUC, N-Series
Engine Model ISUZU 4JJ1, 4JK1
Condition 100% Brand New
Weight Standard
Origin China Mainland
Main Market Middle East, Asia, Africa, South America, North America & Europe
Package Neutral Packing Or Make It As Requested
Material High-strength aluminum alloy & precision bearings
Cooling Type Engine coolant circulation
Installation Direct OEM replacement
Quality Standard OEM equivalent / ISO quality control
ISUZU Compressor Idler Pulley Assembly - OEM replacement part
Vehicle Compatibility

Primary Applications (ISUZU 4JJ1 / 4JK1 Engines):

Model Engine / Notes
ISUZU D-MAX 4JJ1, 4JK1 (2004-2011)
ISUZU TFUC Pickup / Utility
ISUZU N-Series (NKR, NHR, NPR, NQR) 4JJ1, 4JK1
ISUZU ELF / 100P / 600P / 700P 4JJ1, 4JK1
ISUZU TFR / TFS D-MAX platform

Engine Details:

  • ISUZU 4JJ1 - 3.0L, 4-cylinder, common rail turbo diesel
  • ISUZU 4JK1 - 2.5L, 4-cylinder, common rail turbo diesel
Important: This idler pulley assembly is specifically designed for the air conditioning compressor drive belt system on ISUZU vehicles with 4JJ1 and 4JK1 engines. It is listed as "PULLEY ASM IDL" (Idler Pulley Assembly) for the A/C compressor in ISUZU parts catalogs. Always verify your vehicle's chassis code and original part number before ordering. When in doubt, consult your vehicle's workshop manual or provide your VIN to confirm compatibility.
Common Failure Symptoms
Symptom Description
Belt squeal or chirping Noise from the drive belt area, especially on startup or under load
A/C compressor not engaging Insufficient belt tension causes the A/C compressor to slip or not engage
Visible wear or damage Cracks, pitting, or roughness on the pulley surface
Bearing noise Grinding or rumbling sound from the pulley area
Belt wear or fraying Misalignment caused by a worn idler pulley
Ignoring a failing idler pulley can lead to:
  • Complete belt failure and loss of A/C, power steering, or alternator function
  • Overheating due to water pump not being driven
  • Compressor damage from belt debris
  • Costly repairs and vehicle downtime
Features & Benefits
OEM-grade / OE-spec quality
Manufactured to original equipment standards — ensures perfect fit and reliable performance
Precision-balanced, high-strength construction
Maximizes belt contact, eliminates slippage, and reduces harmonic vibration — extends belt and bearing life
Direct OE replacement
No modifications required — matches factory mounting points and specifications precisely
Restores proper belt tension
Eliminates belt squeal and ensures reliable A/C and accessory operation
Prevents component failure
Replaces worn pulleys before they cause belt failure or damage to other components
Comprehensive cross-reference
Matches multiple OEM numbers (8-98114437-0, 8981144370, 8-98051011-0, 8980510110) — simplifies sourcing
Wide application range
Fits ISUZU D-MAX, N-Series trucks, ELF, and more — versatile for workshops and distributors
Quality Control & Verification
QC Item Verification Method
Dimensional accuracy Precision inspection against OE blueprint — ensures proper fit on ISUZU 4JJ1/4JK1 engines
Bearing integrity Spin and load testing — verifies smooth operation and load capacity
Surface finish Visual and dimensional inspection — ensures proper belt contact
Balance Dynamic balancing — reduces vibration and extends belt life
Material quality High-grade materials verification — heat and wear resistance
Batch traceability Each production batch documented with quality certificates
Installation & Maintenance Recommendations
IMPORTANT: Idler pulley replacement requires mechanical competence and proper safety precautions. Professional installation recommended.

Installation Guidelines (Reference ISUZU workshop manual for complete steps):

  1. Safety first — allow engine to cool completely before starting work
  2. Disconnect battery negative terminal
  3. Release belt tension following the workshop manual procedure
  4. Remove the drive belt from the idler pulley
  5. Remove the mounting bolt securing the idler pulley
  6. Remove the old pulley assembly
  7. Compare the new pulley with the old unit — verify part number matches
  8. Inspect the mounting bracket for wear or damage
  9. Install the new idler pulley assembly
  10. Torque mounting bolt to manufacturer specification
  11. Reinstall the drive belt — ensure correct routing
  12. Adjust belt tension to factory specification
  13. Reconnect battery
  14. Start engine and verify smooth operation — no squeal or noise

Maintenance Schedule:

  • Inspect the idler pulley for wear, noise, or play during every service
  • Replace the idler pulley if there is any sign of wear or bearing roughness
  • Replace the drive belt when replacing the idler pulley
  • Check belt tension regularly to prevent premature pulley wear
Packaging & Supply
  • Individually sealed in protective packaging
  • Neutral packaging or custom branding available upon request
  • Sold individually
  • Bulk wholesale available in master cartons
  • Suitable for: ISUZU specialist repair shops, commercial vehicle maintenance depots, 4x4 off-road centers, auto parts distributors
Tags: 

isuzu head gasket,

isuzu dmax parts,

isuzu nkr parts

Yimi (Guangzhou) Automotive Parts Co, Ltd
Unit 1313, Building 5, Changsheng DDP Fashion Center, No. 17 Dachi Road, Tancun, Shijing Subdistrict, Baiyun District, Guangzhou City.
Tel: +86-17820569171
Sitemap |  Privacy Policy | China Good Quality Isuzu Cars Parts Supplier. Copyright © 2024-2026 Yimi (Guangzhou) Automotive Parts Co, Ltd . All Rights Reserved.