Precision steering begins with the right fork assembly. The genuine XCMG GR215Ⅹ.13.1-1A/-4 Fork Assembly (OEM 380903658) is a critical component engineered specifically for XCMG motor graders. This heavy-duty fork connects the steering hydraulic cylinder to the wheel knuckle, ensuring precise articulation and eliminating steering slop. OEM number 380903658 guarantees exact fitment for GR215, GR200, GR220, and GR2153 series graders, delivering exceptional durability under extreme shock loads and continuous operation in mining, road construction, and earthmoving projects.
Manufactured from high-strength forged alloy steel (40Cr/42CrMo equivalent), the 380903658 fork assembly undergoes induction hardening on all bearing surfaces, achieving 38–42 HRC for superior wear resistance while maintaining core toughness. Each unit is CNC-machined to micron-level tolerances, guaranteeing perfect alignment of the 32.00 mm H7 pin bore and 58 mm fork opening. Rigorous quality control includes magnetic particle inspection and CMM verification for every batch, ensuring zero micro-cracks and exact geometry matching XCMG’s original blueprints.
Field tests demonstrate that the 380903658 fork assembly provides over 8,000 hours of reliable service under normal conditions, outperforming aftermarket copies by 40% in fatigue life. The component is backward compatible with earlier GR200 models and directly replaces superseded numbers 380903657 and 380903659, featuring improved metallurgy and enhanced corrosion resistance. Using genuine XCMG part 380903658 prevents premature wear of tie rod ends, kingpins, and steering cylinders, significantly reducing total ownership cost for fleet operators.
Upgrade your grader’s steering reliability with the XCMG 380903658 fork assembly – a robust linkage component that ensures operator safety and machine uptime. Trusted by infrastructure giants and mining fleets worldwide, this genuine part maintains steering geometry under the most demanding conditions, from arctic tundra to tropical laterite soils.
| Parameter | Specification / Value |
|---|---|
| OEM Number | 380903658 |
| English Name | GR215Ⅹ.13.1-1A/-4 Fork Assembly |
| Brand | XCMG Original Equipment |
| Applicable Models | XCMG GR215, GR200, GR220, GR2153, GR2155 Motor Graders |
| Material | Forged Alloy Steel (40Cr / 42CrMo equivalent) |
| Surface Treatment | Zinc Phosphate + Anti-Rust Oil Coating |
| Hardness (HRC) | 38 – 42 HRC (Induction Hardened Bearing Surfaces) |
| Overall Length | 285 mm ±0.5 mm |
| Pin Hole Diameter | 32.00 mm H7 (Precision Reamed) |
| Fork Opening Width | 58 mm |
| Center-to-Center Pin Distance | 210 mm |
| Net Weight | 4.92 kg ±0.1 kg |
| Torque Specification | 180 Nm + Thread Locker (Loctite 243) |
| Max Static Load Capacity | 18 kN (Safety Factor 3.5) |
| Certification | ISO 9001:2021, XCMG Q/JX 015-2022 |
The 380903658 fork assembly is forged from vacuum-degassed alloy steel, eliminating non-metallic inclusions and ensuring a uniform grain structure. This metallurgical superiority translates into exceptional impact resistance under heavy ripping, snow removal, and mining cycles. Each forging follows directional grain flow that follows the fork’s structural contour, dramatically reducing crack propagation risk during shock loads from uneven terrain.
CNC machining centers maintain bore concentricity below 0.02 mm, guaranteeing that the steering pin rotates smoothly without eccentric wear. Induction hardening on the inner fork contact faces achieves 58 HRC locally while preserving core toughness to withstand shock loads. The phosphate coating provides superior corrosion resistance, even in saline or chemically aggressive environments common in road construction and mining sites.
Aftermarket forks often use lower-carbon steel (e.g., AISI 1045) without proper heat treatment, resulting in bending or cracking under rated load. The 380903658 demonstrates 28% higher yield strength and double the fatigue life in cyclic load tests. Independent laboratory tests show that counterfeit forks experience pin-hole elongation after only 1,200 hours, while genuine XCMG forks maintain original clearance beyond 6,000 hours. This reduces steering slop and prevents secondary damage to tie rods, kingpins, and steering cylinders.
Every 380903658 fork assembly is 100% eddy-current tested to detect surface flaws, and the batch code laser-engraved on the body provides full traceability back to the original XCMG foundry and heat treatment records. This level of quality assurance is never offered by generic suppliers.
Genuine 380903658 fits XCMG GR215 series (serial numbers after 2015) and is retrofittable to older GR200 models with no modification. It also works seamlessly on GR220, GR2153, and certain road grader variants used in Latin America, Africa, and Southeast Asia. While some aftermarket forks claim interchangeability, only the OEM 380903658 guarantees exact geometry for the steering arm clevis and pin bore alignment.
This fork assembly directly replaces superseded part numbers 380903657 and 380903659, offering improved metallurgy, enhanced corrosion resistance, and longer service intervals. For fleet managers, standardizing on 380903658 reduces inventory complexity and ensures consistent steering performance across your grader fleet.
Always replace the 380903658 fork assembly together with both pivot pins (OEM 380903660) and self-lubricating bushings. Apply molybdenum disulfide grease to the pin bore before assembly. Tighten the retaining bolt to 180 Nm using a calibrated torque wrench, then apply an additional 30° angle torque after adding thread locker (Loctite 243). Re-check toe-in adjustment and steering angle symmetry after installation.
After the first 100 operating hours, re-torque the bolt and inspect for any lateral movement. If play exceeds 0.5 mm, inspect the mating pin for wear and replace if necessary. Do not weld, drill, or re-machine a worn fork; always replace with a genuine XCMG 380903658 to maintain steering geometry and operator safety.
Inspect the 380903658 fork assembly every 1,000 operating hours. Check for pin-hole elongation by inserting a new pin gauge – if clearance exceeds 0.3 mm, schedule immediate replacement. Lubricate the steering linkage every 250 hours with NLGI #2 lithium grease. If you notice steering drift, uneven tire wear, or unusual noise during articulation, inspect the fork and associated bushings immediately.
Proactive replacement of the fork assembly at 6,000–8,000 hour intervals (depending on application severity) prevents catastrophic steering failure and extends the life of hydraulic steering cylinders. Keep genuine 380903658 forks in your inventory for planned overhauls.
A Brazilian iron ore mine replaced 24 forks with 380903658 and reported zero steering-related failures over 14,000 operating hours. The maintenance supervisor noted that pin-hole wear was 60% lower compared to previous generic parts. A Russian road construction company operating in Siberia reduced steering downtime by 67% after switching to genuine XCMG forks; the improved cold-impact toughness prevented cracking at -40°C ambient temperatures.
An Indonesian infrastructure project using GR215 graders on volcanic ash soil achieved 2,500 hours of perfect steering articulation with the OEM 380903658 fork assembly – no shimming, rework, or unplanned replacements needed. These real-world results confirm the superiority of genuine XCMG components.
Genuine 380903658 fork assemblies are stocked in XCMG regional hubs: Shanghai, Dubai, Houston, and Hamburg. Express delivery typically takes 3–5 business days to major ports worldwide. Bulk orders (20+ pieces) receive discounted air freight and priority customs clearance. For emergency breakdowns, we offer 48-hour courier dispatch to most mining and construction sites across six continents.
Please provide your machine serial number when ordering to ensure perfect compatibility, especially for older GR215 units produced before 2013 or modified machines. All shipments include packing lists and material certificates for customs clearance.
While the initial price of genuine XCMG 380903658 may be higher than aftermarket alternatives, the total cost of ownership is significantly lower. Extended service life (8,000+ hours vs. 2,000–3,000 for generic), reduced downtime, elimination of secondary damage to steering cylinders and tie rods, and preserved resale value of your grader make the genuine part the most economical choice. Many fleet operators report a 40% reduction in steering-related maintenance costs after switching to genuine XCMG forks.
XCMG genuine 380903658 fork assembly – OEM excellence, unmatched reliability. All specifications are subject to XCMG quality standards. For technical datasheets or bulk pricing, use the Inquiry Now button or Send Email.
