Our 8-97311379-6 exhaust seats solve the B2B pain point of thermal wear in 4JJ1 engines. Built for ZX130B excavators, these seats utilize high-chromium alloys to prevent valve recession under extreme mining heat, ensuring peak engine compression and consistent power output.
Item NO.:
8-97311379-6Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time:
2-3 DAYSFor wholesalers and agents, the 897311-3796 offers an OEM-grade solution with superior oxidation resistance. Its precision-engineered fit prevents seat loosening, strengthening your reputation for providing reliable Isuzu parts that minimize maintenance costs and maximize fleet uptime.
Product Features

Ultra-High Heat Resilience Forged from specialized heat-resistant alloys to maintain structural hardness and prevent pitting under intense exhaust gas temperatures.
Superior Thermal Conductivity The 897311-3796 facilitates rapid heat transfer from the valve to the cooling jacket, preventing thermal fatigue and extending valvetrain life.
Micron-Precision CNC Machining Features ultra-precise dimensional accuracy to ensure a 100% airtight seal, restoring original engine torque and improving fuel efficiency.
Stable Interference Fit Machined to strict tolerances to ensure the seat remains securely positioned in the cylinder head during extreme thermal expansion and vibration.
Direct OEM Interchangeability Produced to original Isuzu specifications, guaranteeing a seamless fit for ZX130B and 4JJ1 industrial engines for immediate performance restoration.
Product Specification
| Product Name | Engine Exhaust Valve Seat Insert |
| OEM Part Number | 8-97311379-6 / 897311-3796 / 8973113796 |
| Engine Model | Isuzu 4JJ1 / 4JJ1-T / 4JJ1-TC |
| Application | Isuzu NPR / NKR Truck, ELF Series, Excavators, Forklifts |
| Material | High-Strength Nickel-Chromium-Molybdenum Alloy |
| Installation Type | Direct Replacement (Standard OEM Size) |
| Thickness | Standard OEM Specification |
| Color | Dark Grey / Natural Steel |
| Working Temperature | -60°C to 850°C (Enhanced exhaust heat resilience) |
| Key Function | Provides a heat-stabilized, hardened surface for the exhaust valve to seal against the head. |
| 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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