
Product Overview
This premium cylinder liner sleeve kit is engineered for Isuzu diesel engines, offering a critical solution for engine overhauls and rebuilds. Designed for durability and precise fitment, this kit is an essential component for commercial vehicle maintenance, heavy machinery, and industrial power units. We supply this high-demand part globally, with established logistics to major markets including North America, Europe, the Asia-Pacific region, and the Middle East, ensuring reliable delivery for B2B clients and distributors.
Key Features & Benefits
- Premium Material Construction: Manufactured from high-grade cast iron or alloy, ensuring excellent wear resistance, heat dissipation, and dimensional stability under high compression loads.
- Precision Engineering: Machined to exact OEM specifications for a perfect fit, guaranteeing optimal piston ring seal and efficient engine performance.
- Enhanced Durability: Features advanced surface treatments (e.g., honing, plating) to minimize friction, reduce oil consumption, and extend the service life of the entire engine assembly.
- Complete Kit Solution: Provides all necessary sleeve components for a streamlined rebuild process, reducing downtime for commercial fleets and equipment.
- Performance Restoration: Effectively restores cylinder bore integrity, compression, and power output in worn Isuzu diesel engines.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Type | Cylinder Liner / Sleeve Kit |
| Compatible Engine Models | Isuzu 4JG2, 4JJ1, 4JH1, 4LE1, 4LE2, 4ZA1, 4ZD1 |
| Primary Material | High-Grade Cast Iron / Alloy |
| Application | Engine Rebuild & Overhaul |
| Condition | New, Aftermarket Replacement |
| Manufacturing Standard | ISO 9001, meets or exceeds OEM specifications |
OEM Cross-Reference
This high-quality aftermarket cylinder liner kit directly replaces original Isuzu components. It is cross-referenced with multiple OEM part numbers for the listed engine families. For precise interchange, please confirm the specific engine model and existing part number. Common OEM references include series numbers for 4JG2, 4JJ1, and 4ZD1 liners.
Compatibility
Engine Models: This cylinder liner kit is specifically designed for Isuzu diesel engines including the 4JG2, 4JJ1, 4JH1, 4LE1, 4LE2, 4ZA1, and 4ZD1 series.
Vehicle & Equipment Applications: These engines are widely used in Isuzu trucks (e.g., NPR, NQR, FSR), buses, industrial generators, construction machinery, and marine applications. Compatibility spans multiple year ranges for each engine model, typically from the 1990s to the 2010s. Always verify your engine’s serial number for exact fitment.
Global Supply & Distribution
We are a leading supplier of heavy-duty engine components with a robust international supply chain. We facilitate seamless B2B transactions and wholesale orders with:
- Worldwide Shipping: Reliable export to all major continents via air and sea freight.
- Key Market Access: Strong distribution networks in North America (USA, Canada, Mexico), the European Union, Australia, Southeast Asia, Africa, and the Middle East.
- Efficient Logistics: Fast container and LCL shipments to major global ports like Los Angeles, Rotterdam, Singapore, and Jebel Ali, with inland forwarding to industrial hubs.
- Trade Compliance: All shipments are prepared with professional commercial invoices, packing lists, and comply with international export regulations.
Quality Assurance
Every cylinder liner is produced under strict quality control protocols to ensure reliability for demanding commercial use.
- Certifications: Manufactured in ISO 9001 certified facilities, adhering to international quality management standards.
- Rigorous Testing: Components undergo dimensional accuracy checks, hardness testing, surface finish analysis, and pressure testing to validate integrity.
- Warranty: Backed by a standard warranty against manufacturing defects, providing confidence for resellers and end-users. Specific warranty terms are provided with the commercial invoice.
FAQ
Q: How do I confirm this liner kit fits my specific Isuzu 4JJ1 engine?
A: The most reliable method is to match the part number from your old cylinder liner or engine block. Cross-reference the engine model (e.g., 4JJ1-TC) and the engine serial number. You can also provide measurements of the old liner (outer diameter, height, flange dimensions) for our technical team to verify.
Q: What is included in the “kit,” and is installation straightforward?
A: The kit typically includes the cylinder liner/sleeve itself. Installation is a precision task requiring specialized tools (e.g., a liner puller/installer, bore gauge) and machining expertise (honing) to ensure proper press-fit and bore finish. We recommend installation by a qualified diesel engine mechanic.
Q: Do you support bulk orders for fleet maintenance or distribution?
A> Absolutely. We specialize in B2B bulk supply and offer competitive FOB/CIF quotes for container quantities. We can arrange mixed container loads with other engine parts and provide all necessary export documentation for smooth customs clearance in your destination country.
Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.
2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.
3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.
4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.
5. Scientific ERP system, easy and fast to locate the parts that customer needs.
6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.
Exhibition

Packing&Shipping

1. Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).
2. Once we get confirmation of payment, we will ship products in 2 days.
3. Our packaging is standard export wooden box or others as your requirement.
4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ
Q1. What is your company major products?
A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.
Q2.What is the MOQ?
A: Normally we can supply any quantity if we have in stock.
Q3. What is your payment term ?
A: We accept Western Union, T/T, Paypal.
Q4. What is the packing ?
A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.
Q5. When can you deliver products after payment ?
A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .
Q6. What can you do to complete order perfectly ?
A: In the beginning , We will communicate with clients in details to understand what they need .
Before packing , We will check the products and send photos to clients .After confirmation ,
We will packing products well to avoid damage . Once we get tracking number ,
We will send it to customer and keep contact in with clients .