Genuine Sinotruk HOWO Engine Screw Plug 080V90310-0153 | MC11 MC13 MAN Technology Series

The 080V90310-0153 screw plug is a precision-machined fastener designed to seal factory-drilled passages in the engine block and cylinder head.

Technical Specifications:
Part Number: 080V90310-0153
Official Name: Screw Plug / Sealing Bolt
Engine Series: Sinotruk MC07, MC11, MC13 (MAN Technology)
Compatible Trucks: HOWO T7H, HOWO T5G, SITRAK C7H, SITRAK G7
Material: High-strength carbon steel with anti-corrosion coating
Thread Type: Metric Fine 
Weight: 0.04 kg

Installation Notes

1. Clean the Port: Use a lint-free cloth and a bit of brake cleaner to remove old oil or debris from the internal threads of the engine block before inserting the new 080V90310-0153 plug.
2. Inspect the Washer: Most 080V-series plugs require a copper or aluminum sealing washer. Always use a new washer; never reuse an old, compressed one.
3. Thread Alignment: Always start the plug by hand. Because engine blocks are often made of different alloys than the plug, cross-threading can be an expensive mistake.
4. Torque to Spec: Do not over-tighten. Use a torque wrench to meet the Sinotruk factory specifications (typically found in the MC-engine service manual). Over-torquing can crack the surrounding casting.
5. Heat Cycle Check: After the first few hours of operation following a repair, inspect the plug area for any signs of thermal seepage.