A1 AUTO PARTS CONNECTION
| Supply Ability | 35000pcs-40000pcs/month |
| Part Number | 8-98130204-0 |
| Payment Terms | L/C,D/A,D/P,T/T,, |
| Product Type | Idler Pulley Assembly |
| Housing Material | Metal (steel-based) |
| Compatible Brands | Isuzu |
| Placement on Vehicle | Engine Front Accessory Drive |
| Delivery Time | 5-8work days |
| Warranty | 12 months |
| Packaging Details | brown box |
| Model Number | 8-98130204-0 |
| Certification | TS16949 |
| Place of Origin | CHINA |
| Brand Name | MOPAAFR |
View Detail Information
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Product Specification
| Supply Ability | 35000pcs-40000pcs/month | Part Number | 8-98130204-0 |
| Payment Terms | L/C,D/A,D/P,T/T,, | Product Type | Idler Pulley Assembly |
| Housing Material | Metal (steel-based) | Compatible Brands | Isuzu |
| Placement on Vehicle | Engine Front Accessory Drive | Delivery Time | 5-8work days |
| Warranty | 12 months | Packaging Details | brown box |
| Model Number | 8-98130204-0 | Certification | TS16949 |
| Place of Origin | CHINA | Brand Name | MOPAAFR |
| High Light | ISUZU idler pulley assembly ，engine idler pulley for ISUZU ，ISUZU 8981302040 pulley part | ||
Core Product Description
The 8981302040 Isuzu Pulley ASM Idler Compressor is a replacement component used in the accessory belt drive system of certain Isuzu diesel engines. This idler assembly provides a rotating guide point for the drive belt as it routes around the compressor unit, contributing to stable belt alignment and consistent power delivery to the compressor.
The assembly is constructed with a metal housing and includes a pre-installed sealed bearing. The sealed bearing design helps prevent the ingress of dust, moisture, and debris, supporting long-term operation in engine bay conditions. The housing surface is treated with a protective coating to resist corrosion.
This component is designed for direct bolt-on replacement. Installation requires removing the center mounting bolt, swapping the old unit, and torquing the new assembly to the manufacturer's specified value. As with all rotating belt drive components, periodic inspection for noise, play, or roughness is recommended.
Important: Fitment is not guaranteed based on part number alone. The 8981302040 is known to be used in certain Isuzu applications, but compatibility depends on the specific chassis, engine, and accessory drive configuration of your vehicle.
To confirm fitment, please follow this checklist:
| Step | Action |
|---|---|
| 1 | Locate the part number on the existing idler pulley installed on your vehicle |
| 2 | Check if the number matches 8981302040 |
| 3 | If the numbers do not match, DO NOT assume compatibility — compare physical dimensions |
| 4 | Measure outer diameter, inner bore, and width of your old unit |
| 5 | Compare with the new unit before installation |
| 6 | Cross-check with your vehicle VIN through an Isuzu parts catalog or dealer |
| Feature | Functional Note |
|---|---|
| Sealed bearing | Designed to resist contamination; reduces the need for maintenance lubrication in normal use |
| Metal housing | Provides structural support under continuous belt tension |
| Protective coating | Aims to reduce surface corrosion from moisture and road salts |
| Pre-assembled unit | Intended for out-of-box installation without additional pressing or assembly |
| Smooth pulley surface | Designed for flat (non-grooved) belt contact — suitable for backside belt routing |
Idler pulleys are subject to normal wear over time. Regular inspection can help identify issues before they lead to belt damage or compressor malfunction.
Visual inspection – look for:
Cracks or damage on the pulley body
Corrosion or pitting on the pulley surface
Grease leakage around the bearing seal
Uneven wear patterns on the belt contact area
Functional inspection – check for:
Unusual noise (squealing, grinding, or rumbling) during engine operation
Excessive lateral movement (play) when gently prying the pulley
Roughness or binding when rotating by hand (engine off)
Replacement is generally recommended if any of the above signs are observed, or as part of scheduled belt drive maintenance.
Q1: How can I be sure this pulley fits my truck?
A1: The most reliable method is to remove your existing pulley, note the part number stamped on it, and compare it with 8981302040. Also measure the outer diameter, center bore, and width. If the numbers and dimensions match, the pulley is a direct replacement.
Q2: What is the difference between an idler pulley and a tensioner pulley?
A2: An idler pulley is a fixed guide point for the belt path; it does not move. A tensioner pulley is spring-loaded and moves to maintain constant belt tension. This 8981302040 is an idler pulley.
Q3: Can I replace just the bearing?
A3: This item is supplied as a complete assembly with the bearing pre-installed. It is designed to be replaced as a unit.
Q4: What should I do if my new pulley looks slightly different from the old one?
A4: Minor differences in casting marks, font styles, or surface finish may occur between production batches. Compare the critical dimensions — outer diameter, center bore, width, and mounting bolt position — to confirm they match. If in doubt, do not install.
Quality Assurance:
Every 8981302040 idler pulley assembly is manufactured under controlled production processes to ensure consistent dimensional accuracy and material integrity. Each unit undergoes the following quality checks before packaging:
Dimensional inspection – critical mounting points and pulley surfaces are verified against design specifications
Bearing rotation test – each assembly is tested for smooth rotation and absence of abnormal noise
Sealing integrity check – bearing seals are inspected for proper fit and protection against contamination
Surface finish inspection – coating uniformity and corrosion protection layer are visually and metrologically verified
Product Traceability:
Each unit is marked with a batch number and production date code. This enables full traceability from raw material sourcing through final assembly, ensuring accountability at every stage of the supply chain.
Packaging Protection:
Each pulley assembly is individually sealed in protective packaging to prevent contamination, moisture ingress, and physical damage during storage and transit. The packaging includes a clear part number label for easy identification.
Service Commitment:
| Commitment | Description |
|---|---|
| Pre-sale support | Fitment verification assistance – we help confirm compatibility before you order |
| Timely dispatch | Orders are processed and shipped within the stated handling time |
| Secure packaging | Double-layer protective packaging to prevent transit damage |
| Responsive support | Customer service inquiries are typically addressed within 24 hours |
| Fair resolution | Any issues with your order will be reviewed and resolved promptly |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Trading Company,Seller
Year Established:
2000
Total Annual:
200$-500$
Employee Number:
20~50
Ecer Certification：
Verified Supplier
A1 Auto Parts Connection Since 2000,GUANGZHOU ,CHINA A1 Auto Parts Connection was started in 2000, basis on the brake pads,brake shoes and suspension factories ,sourcing and inventory center, and spreading across the West Africa in 2011.A1 always with sharp eyes focus on potential opportu... A1 Auto Parts Connection Since 2000,GUANGZHOU ,CHINA A1 Auto Parts Connection was started in 2000, basis on the brake pads,brake shoes and suspension factories ,sourcing and inventory center, and spreading across the West Africa in 2011.A1 always with sharp eyes focus on potential opportu...
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