Our 8-94392999-6 rocker shaft spring solves the B2B pain point of lateral vibration in 4HK1 engines. Specifically designed for ZX200-3 excavators, it offers superior elastic stability, preventing rocker arm shift and ensuring precise valve timing during high-intensity mining operations.
Item NO.:
8-94392999-6Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time:
2-3 DAYSFor wholesalers and agents, the 894392-9996 provides an OEM-standard replacement that reduces engine noise and wear. With high-fatigue resistance and precise tension, this spring ensures long-term reliability for your clients' fleets, boosting your reputation as a high-quality parts supplier.
Product Features

High-Fatigue Alloy Steel Manufactured from premium spring alloy to endure millions of stress cycles without losing tension, ensuring long-term valvetrain stability.
Precise Axial Tension Maintains the exact lateral pressure required to keep rocker arms perfectly aligned, reducing friction and preventing uneven component wear.
Shot-Peened Surface Treatment The surface is shot-peened to eliminate micro-defects and enhance fatigue strength, specifically for heavy-duty excavator duty cycles.
Superior Thermal Resilience Engineered to maintain consistent elasticity even during the extreme heat cycles of the 4HK1 turbocharged engine environment.
Direct OEM Fitment Built to the exact dimensional standards of the 894392-9996, allowing for a seamless, drop-in replacement that eliminates installation errors.
Product Specification
| Product Name | Valve rocker shaft spring |
| OEM Part Number | 8-94392999-6 / 894392-9996 / 8943929996 |
| Engine Model | Isuzu 4HK1 / 4HK1-T / 6HK1 |
| 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 | Maintains the axial spacing and alignment of rocker arms on the shaft. |
| 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

Our hours