Reliable engine performance starts with precision sealing. If you are handling an engine overhaul for heavy machinery or commercial trucks, the 89731-21081 (also known as 8973121081) is a critical component for maintaining compression and preventing oil consumption. As a specialized supplier of engine rebuild parts, we provide OEM-standard replacements designed to withstand high-temperature environments in modern diesel engines.
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| Detail Item | Specifications |
|---|---|
| Part Number | 89731-21081 / 8973121081 |
| Model NO. | Isuzu 4HK1, 6HK1, 4HK1-TC, 6HK1-TC Engine Series |
| Product Name | Engine Valve Stem Seal / Oil Seal |
| Condition | Brand New, OEM Standard Replacement |
| Application | Engine rebuild, overhaul, maintenance for Excavators (ZX200, ZX240, ZX330), Trucks, and Generators |
| Payment Terms | T/T, Western Union, MoneyGram |
| Delivery Methods | Express: DHL Fedex EMS UPS or by Air/ Sea |
| MOQ | 1 Piece |
| Stock Status | In Stock / Fast Dispatch |
| Packaging | Industrial Export Packing |
| Feature | Standard Aftermarket | Our OEM-Standard Replacement | Procurement Impact |
|---|---|---|---|
| 1. Material Integrity | Generic Rubber | High-Temp Viton/Fluoroelastomer | Resists hardening and leaking |
| 2. Fitment Precision | Approximate sizing | 1:1 Precise 89731-21081 Blueprint | Zero-gap sealing performance |
| 3. Durability | Short service life | Extended 10,000+ hours capability | Reduces downtime costs |
| 4. Quality Control | Batch testing only | Individual inspection standards | Guaranteed out-of-box reliability |
| 5. Oil Control | Potential leakage | Optimized tension spring design | Ends blue smoke issues |
| 6. Cost-Efficiency | Low initial cost | High ROI / Long-term savings | Best value for repair shops |
Our team helps operators achieve maximum uptime by providing technical clarity:
Identify potential risks during routine engine maintenance.
Recommend suitable replacement parts tailored to your specific engine wear.
Support both inspection advice and global parts supply.
Don't let a small seal cause a big failure. 89731-21081 is essential for 4HK1/6HK1 health.
We specialize in providing high-performance diesel engine assemblies and spare parts for the world's leading brands. Our inventory focuses on Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai engines. Whether you need a complete engine rebuild or specific components, we ensure quality and compatibility.
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