5537373X is the genuine OEM dowel ring engineered for Shacman heavy-duty trucks. This small but critical engine component ensures precise alignment between cylinder head and engine block, reducing vibration and preventing oil leakage. The Dowel Ring 5537373X is manufactured from high-grade steel with anti-corrosion coating, delivering exceptional durability under extreme thermal cycles. Shacman trucks, especially those operating in mining, construction, and long-haul logistics, rely on this exact dowel ring to maintain engine integrity.
When you install an OEM dowel ring with part number 5537373X, you avoid the risks associated with aftermarket copies that may deform or crack. This component is designed to match original tolerances within 0.02 mm. Whether you are rebuilding a WP10, WP12, or Weichai engine used in Shacman Delong, F2000, or X3000 series, the 5537373X dowel ring fits perfectly. It is a direct replacement for the original factory part and meets Shaanxi Automobile Group’s strict standards.
Each 5537373X dowel ring undergoes rigorous hardness testing and magnetic particle inspection before packaging. The surface treatment prevents rust during storage and transportation. In high-mileage engines, replacing worn dowel rings with the 5537373X OEM part restores proper alignment and eliminates annoying engine knocks. For fleets and independent workshops, keeping the 5537373X in stock reduces downtime significantly.
| Parameter | Specification |
|---|---|
| OEM Part Number | 5537373X |
| English Name | Dowel, Ring |
| Brand | Shacman / Shaanxi Automobile |
| Material | Carbon Steel, Zinc Plated |
| Outer Diameter | 18.0 mm (±0.01 mm) |
| Inner Diameter | 10.0 mm (±0.02 mm) |
| Height / Thickness | 8.5 mm |
| Hardness (HRC) | 38 – 44 HRC |
| Surface Finish | Smooth, Anti-corrosion coated |
| Compatible Engine Models | WP10, WP12, WP13, Weichai series |
| Weight | 0.012 kg |
The 5537373X dowel ring is not just a simple metal insert. It is a precision-engineered locating element that transfers shear forces between mating surfaces. In Shacman engines, the dowel ring prevents lateral movement of the head gasket and maintains consistent compression. A worn or improperly sized dowel ring can cause head gasket failure, coolant leaks, and even catastrophic engine damage. Using the genuine 5537373X component ensures the engine operates as designed.
Shacman trucks are known for their reliability in harsh environments. From the deserts of the Middle East to the highlands of South America, these vehicles depend on small parts like the 5537373X dowel ring. Many aftermarket suppliers offer similar-looking rings, but they often use inferior steel that expands under heat. The OEM 5537373X ring is heat-treated and stress-relieved to maintain dimensional stability from -40°C to +200°C. This is why professional mechanics always request the original part number.
When you receive the 5537373X dowel ring, it comes in a sealed Shacman-branded bag with anti-rust paper. The packaging includes a QR code for authenticity verification. Each batch is traceable to the original factory in Xi’an, China. This traceability matters for fleet managers who need to maintain warranty compliance and audit trails. Replacing all dowel rings during an engine rebuild with the 5537373X OEM part is standard practice in authorized service centers.
Before installing the 5537373X, clean the dowel holes thoroughly with brake cleaner. Inspect for any burrs or cracks. Use a brass drift to gently tap the ring into place—never use a steel hammer directly. The ring should sit flush or slightly below the deck surface. If the ring is protruding, the head will not seat correctly. Apply a thin film of engine oil to facilitate installation. Torque the cylinder head bolts in the sequence specified in the Shacman service manual.
For engines with high mileage, consider replacing all dowel rings as a set. The 5537373X is sold individually, but most rebuild kits include multiple pieces. Check the parts catalog to determine the exact quantity for your engine model. Some WP10 engines require two dowel rings per cylinder head, while WP12 may use four. Always refer to the engine serial number when ordering to ensure compatibility.
Every 5537373X dowel ring is inspected using coordinate measuring machines (CMM) to verify dimensions. The surface roughness is kept below Ra 0.8 μm for optimal seating. Salt spray tests confirm corrosion resistance for up to 96 hours. The rings are then packed in vacuum-sealed bags with desiccant. This level of quality control ensures that the part you receive is exactly the same as the one installed on the factory line.
In addition to the dowel ring 5537373X, Shacman offers a full range of engine locating pins, rings, and alignment sleeves. However, the 5537373X remains one of the most frequently ordered numbers due to its use across multiple engine platforms. Whether you are repairing a Delong F3000 dumper or an X3000 tractor, this part number is likely in your bill of materials. Keep a spare set in your toolbox to minimize downtime.
The dowel ring 5537373X is also compatible with some Weichai natural gas engines used in Shacman LNG trucks. This cross-compatibility makes it a versatile component for mixed fleets. Always verify the engine family before ordering, but in most cases the 5537373X is the correct choice. The part is lightweight and easy to ship worldwide, with most orders dispatched within 24 hours from our warehouse partners.
For workshops that specialize in Shacman and Weichai engines, maintaining an inventory of 5537373X dowel rings is a smart business decision. The low cost of the part prevents expensive comebacks caused by misalignment. Your customers will appreciate the attention to detail when you replace these often-overlooked components. The 5537373X dowel ring might be small, but its impact on engine longevity is huge.
To summarize, the genuine Shacman dowel ring 5537373X is manufactured to OEM specifications with premium materials and precise tolerances. It ensures proper head-to-block alignment, reduces vibration, and extends gasket life. Whether you are rebuilding one engine or maintaining a fleet of hundreds, the 5537373X is the only part number you need to trust. Order today and experience the difference that genuine Shacman quality makes.
No. The 5537373X is a solid ring-type dowel, not a hollow roll pin. It is designed to locate the cylinder head precisely and withstand high shear loads. Roll pins are not suitable for this application.
Typically, a WP10 engine uses four 5537373X dowel rings—two per cylinder head. However, some later models may use six. Check your engine serial number against the Shacman parts catalog for the exact quantity.
It is not recommended. Once removed, the ring may have deformed slightly. For the small cost of the 5537373X, always install new ones during any head removal or gasket replacement.
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