Our 9-12620031-6 rocker shaft solves the B2B pain point of frictional seizure in 6RB1 engines. Engineered for the high-impact environment of EX400-5 excavators, this hardened shaft provides superior surface smoothness compared to standard parts, ensuring zero-lag valve timing in mines.
Item NO.:
9-12620031-6Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time：
2-3 DAYS
For wholesalers and agents, the 912620-0316 offers a strategic OEM-standard solution that minimizes fleet downtime. By utilizing advanced heat treatment and precision oiling ports, this shaft reduces maintenance overhead, helping you secure long-term contracts with high-demand industrial clients.
Product Features
Induction-Hardened Surface Finish The shaft features a high-frequency hardened layer to resist deep scoring and wear, maintaining a smooth interface for the rocker arms under heavy loads.
Precision-Ground Oil Distribution Engineered with micro-polished oil holes for the 912620-0316, ensuring consistent lubrication to prevent heat seizure during continuous operation.
High-Carbon Alloy Steel Core Constructed with a toughened core to absorb heavy mechanical shocks without bending, specifically designed for large-displacement 6RB1 engines.
Strict Dimensional Consistency Manufactured to micron-level tolerances for a perfect 1:1 fit, eliminating shaft play and ensuring synchronized valve actuation for peak engine power.
Corrosion-Inhibiting Protection Treated with an industrial-grade anti-rust coating to ensure the product remains in pristine condition during international shipping and warehouse storage.
Product Specification
| Product Name | Engine Valve Rocker Arm Shaft |
| OEM Part Number | 9-12620031-6 / 912620-0316 / 9126200316 |
| Engine Model | Isuzu 6RB1 / 6RB1T |
| 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 | Industrial Metallic Grey / Anti-Rust Oiled |
| Working Temperature | -40°C to 160°C (Standard engine thermal range) |
| Key Function | Serves as the central pivot axis for rocker arms to transmit motion from the camshaft to the valves. |
| 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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