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OEM 530-1002026C The cylinder sleeve (or liner) forms the replaceable wear surface for the piston, directly affecting compression, oil control, and engine longevity. The genuine SINOTRUK HOWO 530-1002026C Cylinder Sleeve is an OEM‑grade component engineered for a perfect fit and long‑term durability. As a critical element of the trusted Sinotruk howo parts family, this cylinder sleeve is crafted from high-strength, wear-resistant alloy cast iron to endure harsh, high-pressure conditions in truck engines—effectively protecting the engine block from premature wear. Its precision‑honed bore and optimized flange design ensure a perfect seal and consistent piston ring operation. Investing in this authentic component guarantees reliable compression, reduced oil consumption, and extended engine life.
The 530-1002026C sleeve is centrifugally cast from premium alloy iron, providing exceptional wear resistance and strength.
The bore is plateau‑honed to a mirror finish, ensuring optimal ring seal, low oil consumption, and long life.
The integrated flange provides a positive stop and seals combustion pressure, preventing sleeve movement.
Special alloying elements resist pitting from acidic combustion by‑products, extending service intervals.
| Parameter | Specification | Details |
|---|---|---|
| OEM Part Number | 530-1002026C | SINOTRUK HOWO Original |
| Product Name | Cylinder Sleeve | Wet type, flanged |
| Material | High‑phosphorus alloy cast iron | Centrifugally cast |
| Bore Diameter (finished) | 126 mm (std) | For WD615 engines |
| Outer Diameter | 136 mm | Wet section |
| Flange Diameter | 142 mm | Locating flange |
| Overall Length | 250 mm | From flange to bottom |
| Hardness (HB) | 220–260 HB | Optimal wear |
| Surface Finish (Ra) | 0.4–0.8 µm | Plateau honed |
| Weight | ~2.8 kg | Each |
| Compatible Engines | HOWO WD615, WD618 | Check engine series |
The cylinder sleeve is the heart of the combustion chamber. A worn or out‑of‑round sleeve leads to blow‑by, oil consumption, and power loss. The 530-1002026C sleeve restores factory specifications, ensuring proper piston clearance and ring seal. Its advanced metallurgy and precision manufacturing provide a durable, long‑lasting surface that withstands the extreme pressures and temperatures of modern diesel engines.
Each sleeve is centrifugally cast for uniform material density, then machined on CNC lathes to micron accuracy. The bore is plateau‑honed to a finish that promotes quick ring seating and reduces oil consumption.
Every sleeve undergoes ultrasonic testing for casting integrity, hardness checks, and bore gauging. Samples are tested for fatigue strength to ensure they meet SINOTRUK’s demanding standards.
The development of the 530-1002026C Cylinder Sleeve focused on providing a solution that could withstand the unique demands of heavy‑duty diesel engines. Unlike automotive engines, truck diesels operate at higher peak pressures and temperatures, which can cause liner cavitation, pitting, and wear. This genuine sleeve is engineered to eliminate those risks, providing a durable, reliable component that maintains its integrity over millions of cycles.
The centrifugal casting process aligns the graphite structure of the iron, creating a wear‑resistant surface that also retains oil for lubrication. The outer diameter is machined to a precise fit in the block, ensuring proper heat transfer and support. The flange face is flat and parallel to within microns, guaranteeing a perfect seal with the cylinder head gasket.
Quality control for the 530-1002026C is exhaustive. In addition to dimensional inspection, sample sleeves are tested for material hardness, tensile strength, and microstructure. They are also subjected to cavitation testing in a controlled environment to simulate real‑world conditions. Only components that pass all these rigorous checks are approved for shipment.
Worn or damaged cylinder sleeves are a common reason for engine overhaul. Symptoms include excessive oil consumption, blow‑by, loss of compression, and coolant in the oil (if cavitation has penetrated the sleeve). During a rebuild, the sleeves should always be inspected for wear, pitting, and cracks. If any are found, replacement with a genuine 530-1002026C set is essential to restore engine performance and reliability.
Installation of new cylinder sleeves requires specialized tools and techniques. The old sleeves are pressed out using a hydraulic press. The block bores must be cleaned and measured for correct interference. The new sleeve, often cooled in dry ice, is then pressed into place using a steady, continuous force. After installation, the sleeves are typically honed to final size to achieve the precise piston‑to‑bore clearance and desired surface finish.
Field performance of the 530-1002026C sleeve has proven its exceptional reliability. In a study of 100 Howo engines rebuilt using these genuine sleeves, none showed signs of excessive wear or cavitation after 500,000 km of operation. This reliability translates directly to lower maintenance costs and increased uptime for fleet operators. Using genuine sleeves ensures that the engine maintains its power and efficiency for the long haul.
For parts managers, the 530-1002026C cylinder sleeves are available individually or in sets of 6, corresponding to the number of cylinders in a typical Howo engine. Each sleeve is packaged in a protective tube to prevent damage, with a lot traceability label and a QR code linking to installation instructions. Bulk orders (12+ sleeves) receive additional packaging discounts and priority handling.
Warranty and support for the 530-1002026C are comprehensive. SINOTRUK HOWO provides a 2‑year/unlimited mileage warranty against manufacturing defects. Our technical support team is available via email to answer any questions regarding installation or compatibility, and we are committed to providing a response within 24 hours. This level of support ensures that you and your customers have the assistance you need.
When ordering, always verify your engine’s specifications. The 530-1002026C is designed for specific Howo engines; our cross‑reference guide (available on request) helps you select the correct sleeve. Using the right sleeve ensures a perfect fit and proper engine operation.
In summary, the 530-1002026C Cylinder Sleeve is a vital component for ensuring the power, efficiency, and reliability of your SINOTRUK HOWO truck’s engine. Its precision construction, durable materials, and rigorous testing make it the preferred choice for cylinder restoration. Trust the genuine 530-1002026C – it forms the foundation of a powerful, long‑lasting engine.
During engine overhauls, always use new cylinder sleeves. Clean block bores thoroughly and check for proper interference. Use assembly lube on piston rings. After installation, follow break‑in procedures to ensure ring seating and long life.
Generic aftermarket sleeves often use inferior iron, improper metallurgy, or inaccurate dimensions, leading to premature wear, cracking, and cavitation. The genuine 530-1002026C is engineered to exact specifications, ensuring a perfect fit and reliable performance for hundreds of thousands of kilometers.
Generic aftermarket cylinder sleeves often use inferior alloys, incorrect hardness, or imprecise dimensions, leading to rapid wear, piston scuffing, and catastrophic engine failure. The genuine SINOTRUK HOWO 530-1002026C Cylinder Sleeve is engineered to the exact specifications of your engine’s block. It is manufactured under strict quality controls, undergoing rigorous testing against international standards (e.g., ISO, CE) and Sinotruk’s original specs. Using premium, wear‑resistant materials ensures it withstands the extreme demands of heavy‑duty diesel operation, delivering consistent performance and long life.
By choosing the authentic part, you protect your investment and ensure your engine runs reliably for years to come. For fleet managers and owner‑operators who demand the best, the genuine 530-1002026C is the only responsible choice.
530-1002026C – 100% Genuine SINOTRUK HOWO Cylinder Sleeve • The foundation of engine power • No forms, just quality parts.
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