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Part Model: 801541985
Part Name: Right Door Lock (Integrated Heavy-Duty Mechanical Door Lock Set)
Applicable Models: XCMG GR2605 Motor Grader
Compatible Components: GR2605 Right Door Assembly (Model 380603570), Door Pillar Locking Position
The XCMG GR2605 grader 801541985 right door lock is a key safety locking component of the entire right door assembly (compatible model 380603570). It is manufactured in strict accordance with XCMG’s original design standards, GB/T 25684.8 grader safety requirements, and engineering machinery door lock protection specifications. It is specially customized for the right door locking needs of the GR2605 grader and is perfectly adapted to extreme scenarios with high vibration, gravel impact, and dense dust, such as highway construction and maintenance, airport runway grading, open-pit mine stripping, and large-scale water conservancy earthwork filling. As the “safety protection core” of the right door, it integrates multiple locking mechanisms, anti-accidental opening, dustproof sealing, and convenient operation. It can keep the door firmly locked under severe vibration conditions, effectively preventing the door from opening accidentally during operation. At the same time, it resists the intrusion of dust and mud into the lock body. It is a high-quality original replacement part for the right door lock of the GR2605 motor grader after wear, jamming, locking failure, and aging of the seal. There is no need to purchase and assemble parts piece by piece.
The right door lock features a high-strength triple-locking structure: the lock body is made of Q355 high-strength steel, stamped and formed, and undergoes double anti-corrosion treatment with overall electrophoretic rust prevention and electrostatic powder coating, with a tensile strength ≥345MPa. The lock tongue is made of 20CrMnTi alloy material, carburized and quenched, with a hardness ≥HRC55, and can generate a locking force ≥3500N after locking. Through the triple-locking design of “main lock tongue + auxiliary lock tongue + anti-jump pin”, there is no loosening or risk of self-opening under 25g peak vibration conditions, meeting the ROPS/FOPS cab safety protection requirements; the internal gear transmission mechanism of the lock body is processed by precision die forging, with a transmission gap ≤0.1mm, ensuring smooth opening and locking without jamming, and a service life ≥100,000 opening and closing cycles.
The door lock control system features an ergonomic design: the outer handle is made of one-piece die-cast zinc alloy with an anodized surface and anti-slip texture, allowing for easy operation even with gloves, requiring only 8-12 N·m to open; the inner handle is foldable, fitting snugly against the door panel when not in use to prevent accidental opening, and offering a comfortable grip and convenient operation when unfolded; it is equipped with an independent anti-accidental opening safety mechanism, locking the door by rotating the safety knob to prevent accidental opening by operators or triggering by external objects, while also providing basic anti-theft functionality and enhancing the security of the device when parked.
The door lock features a double-sealing design: The connection between the lock body and the door sheet metal is equipped with an EPDM (ethylene propylene diene monomer) sealing gasket, achieving an IP65 protection rating. This effectively prevents dust, mud, and oil from entering the lock body, avoiding gear corrosion and jamming, and short circuits (for the electronically controlled model). The lock body shell adopts a fully enclosed structure design, with dustproof felt pads on key transmission parts to further isolate fine dust. The seals are temperature resistant from -40℃ to 120℃, ensuring long-term outdoor use without hardening or cracking, and providing stable and durable sealing performance.
The product’s mounting holes, latch travel, and connection interfaces are precisely matched 1:1 to the original right door assembly of the XCMG GR2605, with a hole tolerance of ±0.03mm. The latch installation dimensions perfectly match the pre-drilled positions on the door pillar, requiring no additional drilling or modification of the door structure. It is available in mechanical and electronic versions: the mechanical version uses a pull rod for direct transmission and requires no adjustment after installation; the electronic version is equipped with a waterproof solenoid valve and standardized wiring harness plug, directly connecting to the original vehicle’s central control system, supporting remote unlocking and automatic locking functions. The entire door lock installation torque is ≤18N・m, and a single person can complete the entire disassembly and installation in 15 minutes, maintaining consistency with the door interior panel and exterior style after installation.
This right-side door lock has passed multiple authoritative tests and certifications: GB/T 25684.8 Grader Door Lock Safety and Performance Requirements Test, 100,000-cycle opening and closing fatigue test (no loosening, no reduction in locking force), 500-hour salt spray + UV aging test (no rust on metal parts, no failure in seals), and wide temperature environment test from -40℃ to 80℃ (normal opening and closing); its locking reliability meets the vibration resistance test standard for engineering machinery door locks, and it has shown no self-opening phenomenon after 72 hours of continuous operation under 20-25g vibration; the electrically controlled solenoid valve has passed IP67 waterproof certification, making it suitable for humid and dusty operating environments.
Part Model: 801541985
Part Name: Right Door Lock (Integrated Heavy-Duty Mechanical Door Lock Set)
Applicable Models: XCMG GR2605 Motor Grader
Compatible Components: GR2605 Right Door Assembly (Model 380603570), Door Pillar Locking Position
Material: Q355 high-strength steel lock body, 20CrMnTi alloy lock tongue, zinc alloy opening handle, EPDM sealing gasket, dustproof felt pad
Process: Stamping, carburizing and quenching treatment, electrophoresis + powder coating for corrosion protection, precision forged transmission gears, fully sealed assembly
Core Parameters: Locking force ≥3500N, opening torque 8-12N・m, opening and closing life ≥100,000 cycles, protection level IP65, temperature range -40℃ to 120℃
Safety Certifications: GB/T 25684.8 Grader Safety Standard, ROPS/FOPS Matching Certification, IP65 Protection Certification (Mechanical Model) / IP67 (Electrically Controlled Model)
Features: Triple locking and vibration damping, anti-accidental opening safety mechanism, double sealing for dust prevention, ergonomic operation, original factory precise fit
Functions: Securely locks the right door, prevents accidental opening and self-opening, resists dust and mud corrosion, convenient opening and closing operation, basic anti-theft protection, suitable for vibrating working environments
Original factory 1:1 molded integration, no need to purchase all parts separately, directly replaces the old lock on the right door; triple locking + high-strength material, secure locking under vibration conditions, no risk of self-opening; anti-accidental opening safety mechanism, taking into account both operational safety and anti-theft needs; IP65/IP67 Sealed protection completely eliminates the problem of jamming caused by dust and mud; the ergonomic handle design allows for easy operation even while wearing gloves; precise fit to the right door assembly ensures convenient installation, significantly reducing downtime for maintenance after door lock failure, and guaranteeing both passenger safety and operational efficiency.

1 380603577 Right Door Welding Assembly
2 380603593 Right Door Glass
3 801541016 Handle
4 805101742 M6×30 Screw 3 GB/T67-2008
5 801541955 Right Door Lever
6 801541985 Right Door Lock
7 805100054 M6×20 Screw 4 GB/T819.1-2000
8 805338258 Washer 2 GB/T97.1-2002
9 805338280 Washer 1 GB/T97.1-2002
10 805238370 Nut M6 2GB/T6170-2000
11 801103117 Oil Cup M6 3 JB/T7940.1-1995