Product Overview

This premium engine cylinder liner and piston set is engineered for ISUZU 4JA1 and 4JB1 series diesel engines, providing a complete solution for engine overhauls and rebuilds. As a global supplier to the commercial vehicle aftermarket, we ensure this critical component set meets the demands of workshops and fleet operators worldwide, with reliable shipping to major markets across North America, Europe, Asia-Pacific, and the Middle East.

Key Features & Benefits

• Complete Rebuild Kit: Includes both cylinder liners and pistons for a comprehensive engine overhaul, saving procurement time and ensuring component compatibility.
• Precision Engineering: Manufactured to exact OEM specifications for perfect fitment, optimal compression, and reliable engine performance.
• Enhanced Durability: Made from high-grade materials to withstand high combustion pressures and thermal stresses, extending engine service life.
• Optimized Performance: Designed to restore factory power output, fuel efficiency, and emissions performance in ISUZU diesel engines.
• Global Quality Standard: Produced for the international aftermarket, ensuring consistent quality suitable for demanding commercial applications.

Technical Specifications

OEM Cross-Reference

This high-quality aftermarket set directly replaces the following OEM part numbers:

• ISUZU: 5-87814403-3
• ISUZU (Alternate): 5878144033

Note: Always verify part number compatibility with your specific engine serial number before purchase.

Compatibility

This cylinder liner and piston set is designed for the following ISUZU engine families:

• Engine Models: 4JA1, 4JA1-T (Turbo), 4JB1
• Common Applications: These engines are widely used in various ISUZU commercial vehicles, including but not limited to the N-Series trucks (NPR, NQR, NRR), some bus chassis, and industrial power units.
• Vehicle Model Reference: Applicable to vehicles equipped with the above engine codes. Typical model years span from the late 1980s through the 2000s, depending on the market.

Global Supply & Distribution

We specialize in the international distribution of heavy-duty engine components. Our logistics network is optimized for B2B trade, ensuring efficient delivery to your nearest port or hub.

• Worldwide Shipping: We export to all major continents, with consolidated container (FCL) and air freight (AIR) options available.
• Key Markets Served: North America (USA, Canada, Mexico), South America, Europe (EU and non-EU), Asia-Pacific (ASEAN, Australia), the Middle East, and Africa.
• Efficient Logistics: Fast processing and shipping from our regional warehouses to major global ports like Los Angeles, Rotterdam, Singapore, and Jebel Ali.
• Trade Compliance: All shipments are prepared with complete and accurate commercial documentation (Packing List, Commercial Invoice, Certificate of Origin) to ensure smooth customs clearance.

Quality Assurance

We partner with ISO-certified manufacturers to deliver components that meet rigorous international standards.

• Manufacturing Standards: Components are produced using advanced casting and machining processes, with strict dimensional and material quality control.
• Warranty: Backed by a standard warranty against manufacturing defects. Specific warranty terms are provided with the commercial invoice.
• Testing: Critical dimensions and material hardness are verified to ensure compatibility and durability under real-world operating conditions.

FAQ

Q: Does this set include piston rings and wrist pins?
A: The product title specifies a “Cylinder Liner & Piston Set.” It includes the liners and pistons. Piston rings, wrist pins, and other related components (like circlips) may be sold separately. Please confirm the complete contents of the kit with our sales team before ordering for a full rebuild.

Q: Is this part suitable for both naturally aspirated (4JA1) and turbocharged (4JA1T) engines?
A: Yes, this part number (5-87814403-3) is listed as compatible with both the 4JA1 and 4JA1-T engine variants. The design accommodates the different combustion pressures.

Q: What preparation is required before installing these cylinder liners?
A: Professional installation is critical. The engine block must be thoroughly cleaned and inspected for damage. The counterbores for the liner flanges must be clean and undamaged. Proper measurement of liner protrusion above the block deck is essential to prevent head gasket failure. Always follow the engine manufacturer’s workshop manual procedures.

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 .