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5117210160 1007101-44 5cm Valve Guide For NHR NKR NQR QKR TFR UBS Trucks With 4JA1 4JB1 4JG1 4KH1 C240 Engine
Direct replacement valve guide for ISUZU NHR, NKR, NQR, QKR, TFR, and UBS trucks OE cross reference: 5117210160, 5-11721016-0, 1007101-44 Length: 50cm (50mm) – Precision-machined for exact fitment Compatible with 4JA1, 4JB1, 4JG1, 4KH1, and C240 diesel engines Critical engine component – Guides valve movement – Prevents oil consumption Choose from 2 quality levels – China ISUZU (Qingling) Quality / Aftermarket Quality MOQ: 1 piece (set of 8 recommended for 4-cylinder engine)
Description
Products Description
| Parameter | Specification |
|---|---|
| Product Name | Valve Guide / Engine Valve Guide / Valve Stem Guide |
| OE Numbers | 5117210160, 5-11721016-0, 1007101-44 |
| Length | 50mm (5cm / L=5cm) – Please verify with your original guide |
| Material | High-quality cast iron or powdered metal alloy |
| Finish | Precision-honed internal bore |
| Function | Guides valve movement – Provides bearing surface – Transfers heat – Controls oil consumption |
| Fitting Position | Cylinder head – Intake and exhaust valves |
| Installation Type | Press-fit into cylinder head (requires valve guide driver) |
| Compatible Engines | ISUZU 4JA1, 4JB1, 4JG1, 4KH1, C240 (see fitment table) |
| Compatible Models | ISUZU NHR, NKR, NQR, QKR, TFR, UBS |
| Quantity per Engine | 8 guides (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 Valve Guide is a critical internal engine component that provides a precision bearing surface for the intake and exhaust valves as they open and close. The valve guide ensures proper valve alignment with the valve seat, controls oil consumption by scraping excess oil from the valve stem, and transfers heat away from the valve .
This valve guide is specifically designed for ISUZU NHR, NKR, NQR, QKR, TFR, and UBS series vehicles powered by the legendary 4JA1 (2.5L), 4JB1 (2.8L), 4JG1 (3.1L), 4KH1 (3.0L), and C240 (2.4L) diesel engines – some of the most reliable and durable diesel engines ever produced, widely used in light-duty trucks, pickups, and SUVs .
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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 NQR, TFR to UBS, with 4JA1, 4JB1, 4JG1, 4KH1, and C240 engines. We have the parts you need, when you need them.
2. Two Quality Levels – One Simple Choice
We offer Aftermarket Quality and China ISUZU (Qingling) 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. Premium-grade iron alloy, precision-honed internal diameter, and exact outer dimensions for proper press-fit installation – the best value for engine rebuilders and fleets.
4. Critical for Engine Performance & Longevity
Worn valve guides cause oil consumption, blue smoke, loss of compression, valve seat damage, and increased emissions. Our replacement guides restore proper valve alignment and engine efficiency.
5. Exact Fit – Length 50mm
Precision-engineered to the correct length for ISUZU 4JA1, 4JB1, 4JG1, 4KH1, and C240 engines. Direct replacement for OEM guides.
6. Complete Cylinder Head Restoration
When rebuilding a cylinder head, valve guides should always be replaced along with valves and valve seals. Our guides provide the foundation for a reliable valve train.
7. Low MOQ & Fast Global Delivery
Order single guides 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.
About Us
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