The 612600050043 Shacman Valve Adjusting Screw is a key precision part for Shacman heavy-duty trucks' valve trains (tractor, cargo, dump trucks). It adjusts the gap between the valve and rocker arm, ensuring correct valve timing and better engine intake/exhaust. This boosts power, saves fuel, and keeps the engine running smoothly-super important for performance and meeting standards.
Users all say it's reliable: precise adjustment, wear-resistant, no loosening or bending even when the engine runs at 2200rpm. This avoids weak power, high fuel use, or strange noises from wrong valve clearance. We use good materials and precise machining: the screw is high-strength 40Cr alloy steel-hard and tough. The thread is precision-rolled-smooth and durable. The adjusting nut is corrosion-resistant carbon steel with black oxide finish-anti-rust and anti-seize. It fits Shacman's original valve train (Weichai WP10/WP12 engine models) exactly, so it installs with no mods. It handles tough conditions-180℃ engine compartment heat, 5-500Hz vibration, and oil/grease-no thread wear, nut loosening, or bending. Swapping it is easy: no need to take off the whole valve cover, just remove the rocker arm cover, loosen the old screw, take off the nut, install the new screw, set the right clearance (per Shacman's manual), and lock the nut. Before shipping, we test strictly: check size accuracy, torque, and durability-so it's trustworthy.
Key Specifications
- Product Model: 612600050043
- Applicable vehicles: Shacman X3000/F3000/M3000 (original valve train, Weichai WP10/WP12)
- Type: Valve adjusting screw (alloy steel + carbon steel nut)
- Function: Adjust valve-rocker gap, ensure valve timing, optimize engine performance
- Material: Screw (40Cr alloy steel); nut (carbon steel, anti-corrosion)
- Installation: Direct replacement-fits original thread/size
- Working conditions: -40℃~180℃; ≥25N·m locking torque; ±0.02mm tolerance; 600k+ km life
advantages
①Precise adjustment: High-precision thread ensures accurate valve clearance, optimizing engine performance-power improved by 15% vs ordinary screws.
② Wear-resistant & durable: 40Cr alloy steel screw + anti-corrosion nut resist wear and rust, lasting 600k+ km.
③ Perfect for Shacman: Made to original specs-thread, length, head match. No adapters or mods needed-saves 30% maintenance time vs universal screws.
④ Anti-loosening: Precision thread + locking nut stay tight even under engine vibration-no clearance deviation.
Application Scope
This 612600050043 Valve Adjusting Screw is only for Shacman X3000/F3000/M3000 with original valve trains (matching Weichai WP10/WP12 engines). It won't work on modified Shacman or other brands (FAW Jiefang, Dongfeng Tianlong)-different engine/thread specs, won't fit or work.
FAQ
Q1: Engine noisy after install?
A1: Check valve clearance (follow Shacman's manual), tighten nut to ≥25N·m. Replace screw if thread is damaged.
Q2: How to maintain 612600050043 Shacman Valve Adjusting Screw?
A2: Check clearance every 50k km, clean screw/nut, inspect for wear/deformation-replace if needed.
Q3: Replace nut with new screw?
A3: Strongly recommended-old nuts cause loose locking. Replace together for better performance.
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