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If you are dealing with engine performance drops or air leakage in your Sinotruk system, the intake duct interface is often the first place to check. This Sinotruk HOWO Air Intake Rubber Joint (Part No. WG9725190933) is a critical component for the 2010 HOWO and Steyr series.
Crafted from high-grade, reinforced rubber, this joint is built to withstand the intense heat and vibration of heavy-duty truck operation. It ensures a 100% airtight seal between the air filter and the turbocharger/intake manifold, preventing unfiltered air and debris from entering your engine, which is vital for extending your engine’s lifespan in dusty construction or mining environments.
Technical Specifications:
Part Name: Rubber Joint / Air Intake Duct Interface
OEM Part Number: WG9725190933
Application: Sinotruk HOWO (10 Model), Steyr Series
Material: High-Temperature Resistant EPDM Rubber
Inside Diameter: Precision-engineered for standard HOWO intake pipes
Weight: Approx. 0.45kg
Durability: Oil, heat, and weather resistant
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How to Replace your WG9725190933 Rubber Joint:
Replacing this joint is a straightforward maintenance task that can save you from costly engine repairs.
Safety First: Ensure the engine has cooled down completely.
Loosen Clamps: Use a screwdriver or socket wrench to loosen the metal hose clamps on both ends of the old rubber joint.
Removal: Gently twist and pull the old duct interface. If it’s stuck due to heat-aging, you might need to carefully pry it with a flat-head tool.
Inspection: Before installing the new WG9725190933, check the plastic intake pipes for any cracks or debris.
Fitting: Slide the new rubber joint onto the pipes. Ensure it sits flush against the stops.
Tightening: Re-tighten the clamps. Expert Tip: Do not over-tighten, as this can cut into the new rubber; just ensure it’s firm enough to prevent any air bypass.
