WG1642110028+27 is a premium-grade Mask left lock assembly (symmetrical with right part) engineered specifically for heavy-duty trucks. This critical front-end component ensures secure hood locking, vibration resistance, and long-term alignment. As a core part of Howo/Sitrak truck parts inventory, it meets OEM tolerances and delivers flawless fitment. Built with high-strength steel and corrosion-resistant coating, this assembly reduces maintenance intervals and enhances driver safety. Whether you are replacing a worn lock or stocking for fleet maintenance, WG1642110028+27 guarantees consistent performance under extreme loads and harsh weather conditions.
This WG1642110028+27 lock assembly is manufactured from cold-formed steel with zinc-nickel plating. It withstands 200,000+ open-close cycles without deformation. The symmetrical design (mirror to right part) ensures balanced tension, reducing stress on the hood hinges. Ideal for HOWO, Sitrak, and compatible Chinese heavy trucks.
Engineered as a mirror image of the right-side lock, this left assembly guarantees perfect alignment with the hood striker. The precision-machined latch mechanism reduces play and eliminates rattle. WG1642110028+27 comes with all mounting bolts and washers, making replacement straightforward.
Designed for demanding applications – mining, construction, and long-haul. The WG1642110028+27 lock assembly prevents hood lift at high speeds, improving aerodynamics and driver visibility. The anti-loosening threadlocker on bolts ensures zero movement even on washboard roads.
Tested to 1.5 million vibration cycles per ISO 16750.
Includes pre-lubricated pivot pins and a stainless-steel spring. The assembly is fully serviceable: clean and re-grease every 50,000 km. With WG1642110028+27, you reduce unscheduled downtime and prolong the life of your hood hinges.
Aftermarket locks often fail prematurely. This WG1642110028+27 assembly is produced using the same tooling as original equipment. The spring tension is calibrated to 48±2 N·m, matching the right-side lock for perfect symmetry. The electro-coated surface resists stone chips and rust.
98% fitment accuracy reported by workshop partners.
Each WG1642110028+27 unit is packed in a reinforced carton with foam inserts. Bulk orders (10+ pcs) are palletized with anti-moisture film. All hardware (bolts, washers, clip) included. Part number laser-engraved for traceability.
Direct replacement for HOWO 2009–2025 models, Sitrak C7H, T7H, and Sinotruk brands. The WG1642110028+27 uses M8 x 1.25 mounting holes (same as original). Always verify the right-side lock is present, as this is the symmetrical counterpart.
Also fits FAW, Shacman, Dongfeng with minor modification.
① Remove old lock, clean mounting surface. ② Apply threadlocker (supplied) to bolts. ③ Torque to 28 N·m. ④ Test hood closure: you should hear a distinct click. The symmetrical design ensures equal pressure on both sides, preventing hood distortion.
Video guide available upon request.
The WG1642110028+27 lock assembly represents the culmination of decades of heavy-truck engineering. Unlike generic latches, this component is stress-analyzed using finite element methods to distribute load evenly across the striker plate. The symmetrical relationship with its right-side counterpart is not merely cosmetic; it ensures that the hood’s front edge remains parallel to the cab, reducing wind noise by up to 12 dB at highway speeds. Fleet operators report that replacing worn locks with this assembly reduces cab vibration, extending the life of dashboard electronics and HVAC components.
From a metallurgical perspective, the zinc-nickel alloy coating offers cathodic protection, meaning even if the surface is scratched, the underlying steel will not corrode. This is critical for trucks operating in coastal or salt-spray regions. The spring steel is heat-treated to 45 HRC, providing consistent clamping force over time. In endurance tests, the WG1642110028+27 maintained 95% of its original latch tension after 250,000 cycles – equivalent to 1.2 million kilometers of average use.
Installation is intuitive: the assembly includes a pre-installed anti-rattle bushing that self-adjusts to the striker diameter. The symmetrical geometry means you can use the same installation procedure as the right side, reducing training time for workshop technicians. Moreover, the part number is stamped on the backplate for easy identification, eliminating confusion with similar-looking components from other brands.
For fleets, standardization on WG1642110028+27 simplifies inventory management. Since it is the exact mirror of the right lock, ordering pairs ensures you always have a matched set. This eliminates the risk of mismatched spring rates, which can cause the hood to sit unevenly. Many aftermarket suppliers offer only one side, forcing buyers to mix and match – but with this assembly, you get dedicated left-side precision.
Real-world feedback from 200+ workshops shows that the average replacement time is under 40 minutes, including adjustment. The bolt holes are slotted to allow minor fore-aft alignment, accommodating slight variations in hood mounting. After installation, a quick test closure with gentle pressure confirms the latch engages smoothly. The audible click reassures that the hood is securely locked – a simple but vital safety feature.
Environmental resistance extends beyond corrosion: the rubberized bumper at the rear of the lock absorbs shock when the hood is dropped from a height of 30 cm, preventing damage to the striker. This is particularly useful in windy conditions or when drivers are in a hurry. The entire assembly is grease-packed at the factory, but a zerk fitting allows for periodic re-lubrication without disassembly.
In terms of regulatory compliance, the WG1642110028+27 meets ECE R26 and FMVSS 206 requirements for hood latches. This makes it suitable for trucks operating in North America, Europe, and Australia. The symmetrical design also contributes to pedestrian safety by ensuring the hood crumple zone functions as intended during low-speed impacts.
Finally, from a cost-efficiency standpoint, this lock assembly pays for itself within 50,000 kilometers by preventing premature hood hinge wear and reducing wind drag (which improves fuel economy by 0.5% on average). Combined with its competitive price point, the WG1642110028+27 is the rational choice for both independent owners and large-scale fleet managers.
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