The 612630080087 (CX1023E) is a high-efficiency spin-on fuel filter specifically engineered for the Weichai WP10 and WP12 engine series used in Sinotruk HOWO heavy trucks. Given the sensitivity of modern high-pressure common rail systems, this filter provides the necessary 5-10 micron filtration to remove fine particulates and moisture that can lead to injector clogging or pump erosion. As a staple in our Sinotruk spare parts inventory, the CX1023E ensures your engine maintains peak performance even under the harsh operating conditions of long-haul transport.
Technical Specifications:
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Main Part Number: 612630080087
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Manufacturer Model: CX1023E
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Primary Application: Sinotruk HOWO, HOWO A7, Hohan Trucks
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Engine Compatibility: Weichai WP10, WP12 Series (Euro II/III/IV)
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Filtration Efficiency: 99% at 10 microns
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Thread Type: M-series high-precision threads
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Height: Approx. 210mm
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Outer Diameter: 108mm
Pro-Tips for Replacing your CX1023E Filter:
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Seal Preparation: Before installing the new 612630080087, apply a light film of clean diesel fuel to the rubber gasket. Avoid using grease, as it can cause the gasket to slip or swell incorrectly.
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Pre-Filling: To prevent airlocks in the common rail system, it is advisable to pre-fill the filter with clean, filtered diesel before spinning it onto the filter head.
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The Hand-Tight Rule: Spin the filter on until the gasket makes contact with the base. Tighten it by hand an additional 3/4 to 1 full turn. Never use a filter wrench for tightening, as over-torquing will deform the seal and make the next removal extremely difficult.
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Air Bleeding: Once installed, use the manual priming pump on the engine to purge any trapped air. If you notice a “stutter” on the first start, there is likely still air in the 612630080087 housing.
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Leak Check: Start the engine and let it idle for 3 minutes. Inspect the base of the CX1023E for any “sweating” or fuel weeping.
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