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8942478753 Engine Exhaust Valve For ISUZU NHR NKR NPR TFR TFS UCS With 4JA1 4JB1 4JB1T 4KH1 4JH1 Engines
Direct replacement engine exhaust valve for ISUZU NHR, NKR, NPR, TFR, TFS, and UCS trucks and pickups OE cross reference: 8942478753, 8-94247875-3 Compatible with 4JA1, 4JB1, 4JB1T, 4KH1, and 4JH1 diesel engines Critical engine component – Seals combustion chamber – Withstands extreme temperatures up to 800°C Choose from 3 quality levels – China ISUZU (Qingling) Quality / Famous Brand Aftermarket Quality / Japanese ISUZU Quality MOQ: 1 piece (set of 8 recommended for 4-cylinder engine)
Description
Products Description
| Parameter | Specification |
|---|---|
| Product Name | Engine Exhaust Valve / Exhaust Poppet Valve |
| OE Numbers | 8942478753, 8-94247875-3 |
| Quality Options | China ISUZU (Qingling) Quality / Famous Brand Aftermarket Quality / Japanese ISUZU Quality |
| Valve Type | Exhaust (poppet valve) |
| Material | Heat-resistant alloy steel (Nimonic, EV8, or equivalent – dependent on quality tier) |
| Valve Face Treatment | Stellite-facing or induction-hardened (dependent on quality tier) |
| Valve Tip Treatment | Hardened – Wear-resistant |
| Stem Treatment | Chrome-plated or induction-hardened (dependent on quality tier) |
| Compatible Engines | ISUZU 4JA1 (2.5L), 4JB1 (2.8L), 4JB1T (2.8L Turbo), 4KH1 (3.0L), 4JH1 (3.0L) |
| Compatible Models | ISUZU NHR, NKR, NPR, TFR, TFS, UCS (see fitment table) |
| Quantity per Engine | 8 exhaust valves (4-cylinder engine – 2 per cylinder) |
| H/S Code | 8409999000 |
| Place of Origin | China |
| MOQ | 1 piece (set of 8 recommended) |
| Warranty | 1 Year |
Products Image
The Engine Exhaust Valve is a critical internal engine component that controls the release of burned gases from the combustion chamber after the power stroke. The exhaust valve opens at the precise moment to allow exhaust gases to escape into the exhaust manifold, then closes tightly to seal the combustion chamber during the compression and power strokes .
OEM 8942478753, 8-94247875-3,this exhaust valve is specifically designed for ISUZU NHR, NKR, NPR, TFR, TFS, and UCS series vehicles powered by the legendary 4JA1, 4JB1, 4JB1T (turbo), 4KH1, and 4JH1 diesel engines – some of the most reliable and durable diesel engines ever produced, widely used in light-duty trucks, pickups, and SUVs across Asia-Pacific, Middle Eastern, South American, and African markets .
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Why choose Us
1. 29 Years of One-Stop Supply for Full Isuzu Models
With nearly three decades of experience, we are a dedicated one-stop supplier for all Isuzu truck and pickup models – from NHR to NPR, TFR to UCS, with 4JA1, 4JB1, 4KH1, and 4JH1 engines. We have the parts you need, when you need them.
2. Three Quality Levels – One Simple Choice
We offer China ISUZU (Qingling) Quality, Famous Brand Aftermarket Quality, and Japanese ISUZU Quality on one page. Compare and choose the option that best fits your budget and reliability requirements without searching multiple suppliers.
3. China ISUZU (Qingling) Quality – OEM-Level at Competitive Price
Factory-grade components manufactured to meet ISUZU's original equipment specifications. Heat-resistant alloy steel, precision-machined valve face, and hardened tip – the best value for engine rebuilders and fleets.
4. Famous Brand Aftermarket Quality – Maximum Durability
Premium valves from globally recognized engine component brands. Superior heat-resistant alloys, stellite-faced valve seats, and chrome-plated stems for extended service life in demanding applications.
5. Japanese ISUZU Quality – Genuine Factory Grade
Authentic ISUZU Japan-grade construction with premium heat-resistant alloy steel, exact dimensional accuracy, and maximum longevity – identical to original factory parts.
6. Critical for Engine Performance & Longevity
Worn exhaust valves cause loss of compression, hard starting, rough idle, misfiring, reduced power, poor fuel economy, and engine failure. Our replacement valves restore proper engine function.
7. Low MOQ & Fast Global Delivery
Order single valves or complete sets of 8 – we accommodate all needs. Fast shipping options deliver within 1 to 8 working days worldwide, backed by a full one-year warranty.
8. Bulk Discounts for Rebuilders, Fleets & Distributors
We offer attractive wholesale pricing for larger quantities. Our dedicated support team is always available to assist with fitment, installation, or any other questions.
Engine System Hot sales
About Us
Chongqing Guanglian Qingling Auto Parts co., ltd
Founded in 1997 and located in the High-tech Zone of Chongqing City, China, we are one of the largest Isuzu parts distributors in China. For about 29 years ,we primarily supply a full range of spare parts for Isuzu trucks, covering models including ISUZU CXH, CYH, CXZ, CYZ, ELF, EXR, EXZ, FMR, FRR, FSR, FTR, FTS, FSS, FVM, FVR, FVZ, FXZ, FYH, GVR, GVZ, GXZ, NHR, NKR, NLR, NMR, NPR, NPS, NQR, QKR, TFR, TFS, UCR, UCS, and UBS. We also supply HINO, NISSAN, and TOYOTA spare parts. Our main products include China Qingling Isuzu original parts, Japan Isuzu original parts, and high-quality branded parts.
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