Our 8-98028874-6 valve seats solve the B2B pain point of air intake leakage in 4HK1 engines. Built for NPR75 trucks and excavators, these seats provide a high-hardness sealing surface that prevents valve recession, ensuring optimal volumetric efficiency and power in heavy-duty mining.
Item NO.:
8-98028874-6Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time:
2-3 DAYSFor wholesalers and agents, the 898028-8746 offers an OEM-grade solution with superior heat dissipation. Its stable interference fit prevents loosening under thermal stress, strengthening your reputation for providing elite Isuzu parts that minimize maintenance costs and fleet downtime.
Product Features

High-Chromium Alloy Steel Forged from premium heat-resistant alloys to prevent surface pitting and wear under the rapid cycling of high-performance 4HK1 intake valves.
Superior Thermal Conductivity The 898028-8746 facilitates rapid heat transfer from the valve to the cylinder head, preventing thermal fatigue and extending valvetrain service life.
Micron-Level CNC Precision Features ultra-precise dimensional accuracy to ensure a 100% airtight seal, restoring original engine compression and improving fuel atomization efficiency.
Stable Interference Fit Machined to strict tolerances to ensure the seat remains securely positioned in the cylinder head during extreme temperature fluctuations and vibration.
Exact 1:1 OEM Compliance Produced to original Isuzu specifications, guaranteeing a seamless fit for NPR75 and ZX200 series engines, ensuring immediate restoration of performance.
Product Specification
| Product Name | Engine Inlet Valve Seat Insert |
| OEM Part Number | 8-98028874-6 / 898028-8746 / 8980288746 |
| Engine Model | Isuzu 4HK1 / 4HK1-T / 6HK1 |
| Application | Isuzu NPR / NKR Truck, ELF Series, Excavators, Forklifts |
| Material | High-Strength Chromium-Molybdenum Steel Alloy |
| Installation Type | Direct Replacement (Standard OEM Size) |
| Thickness | Standard OEM Specification |
| Color | Silver Metallic / Natural Steel |
| Working Temperature | -60°C to 750°C (High-heat combustion resilience) |
| Key Function | Provides a hardened, precision surface for the intake 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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