Looking for a reliable Isuzu 4LE1 cylinder head? Our 8V OHV replacement (OEM 8971147133) features high-density cast iron to prevent thermal warping in Hitachi & JCB excavators. Factory direct wholesale.
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The Isuzu 4LE1 cylinder head (OEM: 8971147133) is a precision-engineered 8V OHV component made from high-density cast iron.
It is specifically designed to resist thermal cracking in heavy-duty Hitachi EX50U and JCB 8060 excavators, ensuring stable compression under load.
Factory direct wholesale with global export support.
Source a top-quality Isuzu 4LE1 Cylinder Head replacement from Ruich Value, your trusted wholesale supplier. This durable Cast Iron cylinder head is specifically designed for the OHV 8-Valve version of the Isuzu 4LE1 engine (approx. 2.2L, 4-cylinder diesel), widely used in generators, excavators, pumps, and other industrial applications.
| Technical Feature | Detailed Specification |
|---|---|
| Engine Compatibility | Isuzu 4LE1, 4LE2 (4-Cylinder) |
| OEM Part Number | 8971147133 / 8-97114713-3 |
| Valve Configuration | OHV (Overhead Valve), 8 Valves (8V) |
| Casting Material | High-Density Gray Cast Iron |
| Cylinder Bore Size | 85 mm |
| Tightening Torque (M12) | 90 Nm (66 lb.ft) + 60° to 90° Turn |
| Machine Applications | Hitachi EX40/50, JCB 8060, Case Excavators |
Note: The Isuzu 4LE1 engine has multiple versions (e.g., OHV 8V, SOHC). This cylinder head is for the OHV 8-Valve model only. To avoid order errors, please verify the casting number on your original part or contact our technical team with your engine’s serial number. We are here to ensure you get the right part, right away.
Explore our comprehensive range of cylinder heads for various Isuzu engines:
| Model | Model | Model | Model |
|---|---|---|---|
| 3LD1 | 4BA1 | X17D 4EE1 | 6HK1 |
| 4JG2 | 4DR7 | TC4EE1 | 6D22/6D24 |
| 4ZD1 | 4BD1 | 6VE1/6VD1 | 4JJ1 |
| 4ZE1(round cc) | 4BD2T | 4HK1 | 4LE1 |
| 4ZE1 | 4HG1 / 4HG1-T | 4KH1 | 4ZD1 |
| 4JA1 | 4HF1 | 4BE1 | 4ZD1-new |
| 4JX1 | 4HE1 | 6BD1 | 4ZE1 |
| 4ZE3 | 6SD1 | 4JB1 / 4JB1T |
Custom cylinder head development based on drawings or samples may be possible.
Q1: What is the most common reason for Isuzu 4LE1 head failure?
A: Most failures are due to overheating, which leads to thermal warping or hairline cracks between the valve seats. This Isuzu 4LE1 head uses enhanced gray iron casting to improve heat dissipation compared to standard aftermarket units.
Q2: Does this cylinder head come with valves installed?
A: We offer both bare heads and complete assemblies. This specific unit is typically supplied as a bare head to allow technicians to use OEM-spec valve kits, but complete versions are available upon request for fleet orders.
Q3: What are the torque settings for the head bolts?
A: For the primary M12 bolts, follow a spiral pattern from the center outward. Torque to 90 Nm (66 lb.ft), then tighten an additional 60 to 90 degrees. Proper torquing is critical to prevent head gasket failure.
Get competitive B2B pricing and global shipping options from a trusted supplier. For the fastest service, please include the following in your inquiry:
Engine Model: Isuzu 4LE1 (OHV 8V)
Application (e.g., Excavator, Generator)
Required Quantity
Your Company Name & Shipping Destination
Email: [email protected]
Phone / WhatsApp: +86 13889277673
Or use the quick inquiry form on our website.
Your reliable source for Isuzu industrial engine parts.
For Any Inquiries, please feel free to contact us, Our sales teams are always glad to support your business