Our 8-98025496-6 spring washer solves the B2B pain point of fastener loosening in high-vibration 4JJ1 engines. Specifically designed for CX130B excavators, it provides consistent axial tension, preventing rocker shaft instability that leads to costly timing errors in mining environments.
Item NO.:
8-98025496-6Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time:
2-3 DAYSFor wholesalers and agents, the 898025-4966 offers an OEM-standard solution with high fatigue resistance. By ensuring a secure, vibration-proof fit, this washer reduces maintenance frequency and protects the engine’s top end, helping you build long-term trust with professional fleet clients.
Product Features

High-Elasticity Spring Steel Forged from premium alloy steel to maintain constant tension and prevent bolt loosening under continuous engine vibration and thermal cycles.
Precision Surface Leveling Engineered with micron-level flatness to ensure even pressure distribution across the rocker shaft contact points, preventing localized stress.
Superior Fatigue Resistance Tested to withstand millions of high-frequency pulses without losing its structural memory, ideal for 24/7 heavy-duty industrial applications.
Anti-Corrosive Industrial Finish Features a specialized protective coating that resists oil degradation and moisture, ensuring zero rust during long-term warehouse storage.
Perfect 1:1 OEM Interchange Produced to the exact 4JJ1 specifications of the 898025-4966, guaranteeing a seamless fit and eliminating the risk of installation mismatch.
Product Specification
| Product Name | Engine Valve Rocker Shaft Spring Washer |
| OEM Part Number | 8-98025496-6 / 898025-4966 / 8980254966 |
| Engine Model | Isuzu 4JJ1 / 4JJ1-T / 4JJ1-X |
| Application | Isuzu NPR / NKR Truck, ELF Series, Excavators, Forklifts |
| Material | High-strength alloy steel (e.g., 20Cr, 45Cr), hardened and tempered for wear resistance |
| Installation Type | Direct Replacement (Standard OEM Size) |
| Thickness | Standard OEM Specification |
| Color | Natural Steel / Black Phosphated |
| Working Temperature | -40°C to 160°C (Standard engine thermal range) |
| Key Function | Provides elastic tension to secure the rocker shaft and absorb mechanical vibrations. |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Neutral Packing / Customized Box |

Why Choose Us
1.We have profession isuzu team,more than 20 years experience business isuzu parts.
2. We can offer used and new isuzu genuine parts, oem,good quality made in china parts to you.
3. The isuzu genuine parts will give weight,price when quotation.
4.Isuzu genuine stock pictures will send before order.
5.All isuzu parts can check with part number,all parts can order follow part number.
6. Quick delivery time,in 24 hours if sotck.
7. Safe packing to protect the goods, such as wooden box, Iron sheet for our isuzu parts.
8. Small quantity can accept.Sample order also accept.
9. 24 hours oversea service.
10.Lifelong after-sales service.

Certificate



What's the shipping way you can offer?
1) Big order: By sea or by air.(It can reduce the costs)
2) Small order: DHL, TNT, UPS, FEDEX, EMS,ARAMEX

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