Product Overview

This high-quality OEM Cylinder Liner Kit is engineered for the reliable 490QZLB diesel engine, a workhorse powering a wide range of industrial and commercial applications worldwide. As a premier supplier from Guangdong, China, we specialize in the global distribution of precision engine components, serving major markets across North America, Europe, the Asia-Pacific region, the Middle East, and Africa. This kit provides a complete solution for engine overhaul and critical repair, ensuring optimal performance and extended service life.

Key Features & Benefits

• Precision Engineering: Manufactured to exact OEM specifications and size, ensuring a perfect fit and seamless installation for the 490QZLB engine block.
• Enhanced Durability: Made from high-grade cast iron or alloy materials designed to withstand high compression and thermal stresses of diesel operation.
• Optimal Heat Dissipation: Designed for efficient heat transfer to the engine coolant, helping to maintain stable operating temperatures and prevent overheating.
• Superior Surface Finish: The liner’s internal bore features a honed finish to promote proper piston ring seating, reduce oil consumption, and minimize wear.
• Complete Repair Kit: Provides all necessary cylinder liner components for a single cylinder bank, streamlining the procurement process for workshops and fleet managers.

Technical Specifications

OEM Cross-Reference

This cylinder liner kit is manufactured as a direct replacement for the original part in the 490QZLB diesel engine. For confirmation, please verify the OEM part number with your engine’s technical documentation or consult with our engineering support team. We provide parts that meet or exceed original specifications.

Compatibility

This kit is specifically designed for the 490QZLB diesel engine. This engine model is commonly found in a diverse range of equipment, including:

• Construction Machinery: Small excavators, loaders, compactors, and concrete mixers.
• Industrial Applications: Stationary power units, air compressors, and pump sets.
• Agricultural Equipment: Tractors, harvesters, irrigation pumps, and processing machinery.
• Power Generation: Diesel generator sets (Gensets) for prime or standby power.
• Marine: Auxiliary engines for small vessels and workboats.
• Material Handling: Forklifts and other industrial lifting equipment.

Global Supply & Distribution

We are a certified exporter with extensive experience in international B2B trade, ensuring smooth logistics and compliance with global shipping regulations. Our robust supply chain enables us to offer:

• Worldwide Shipping: Reliable delivery via air or sea freight to any major port or industrial hub.
• Key Market Expertise: Deep understanding of import requirements for North America (USA, Canada, Mexico), the European Union, ASEAN countries, the Middle East, and South America.
• Fast Port-to-Door Service: Consolidated shipments and partnerships with leading global logistics providers ensure cost-effective and timely delivery to your workshop or warehouse.
• Export Documentation: Complete commercial invoices, packing lists, and certificates of origin provided for hassle-free customs clearance.

Quality Assurance

Every component is produced under strict quality control protocols to guarantee reliability and performance.

• Manufacturing Standards: Produced in ISO-certified facilities using advanced machining and quality inspection processes.
• Comprehensive Warranty: Backed by a 6-month warranty against manufacturing defects from the date of purchase.
• Rigorous Testing: Each batch undergoes stringent quality checks. A detailed machinery test report is available upon request.
• Pre-Shipment Inspection: Video outgoing-inspection can be provided to verify product quality and packaging before shipment, giving you complete peace of mind.

FAQ

Q1: How do I confirm this cylinder liner kit is the correct part for my specific 490QZLB engine?
A1: We recommend cross-referencing the engine’s serial number and model code with your official service manual. You can also provide the casting numbers or dimensions of your old liner, and our technical team can assist with verification to ensure a perfect match before you order.

Q2: What preparatory steps are crucial before installing these new cylinder liners?
A2> Proper installation is key to performance. Essential steps include: thoroughly cleaning the engine block’s liner bores to remove any old sealant or debris; checking bore dimensions for wear or distortion; and carefully installing new sealing rings (if included) according to OEM torque specifications and procedures. Always use appropriate tools to avoid damaging the liner’s precision surfaces.

Q3: Do you offer technical support or documentation for installation and maintenance?
A3> Yes. While the kit is designed for professional mechanics familiar with diesel engine overhaul, we can provide general installation guidelines and material specifications. For complex projects, we recommend consulting the official engine service manual. Our support team is available to answer specific logistical and product specification questions.

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 .