Precision cylindrical fastener for critical grader assemblies. The genuine XCMG Pin (OEM 805604508) is a precision-engineered cylindrical fastener designed for XCMG motor graders, providing reliable positioning, load transfer, and pivot action in hydraulic cylinder mounts, linkage brackets, steering knuckles, and frame connections. As a core fastening element in grader assemblies, OEM number 805604508 guarantees exact fitment and long-lasting performance under high vibration, shear loads, and extreme operating conditions encountered in heavy construction and mining applications. Manufactured from high-quality alloy steel with precision-ground bearing surfaces and an anti-corrosion coating, this pin ensures consistent clamping and alignment, reducing downtime and maintenance costs.
Designed for XCMG GR series graders (GR135, GR165, GR200, GR215, GR300, GR350 and more), the 805604508 pin meets strict original equipment specifications. Whether you are rebuilding a steering linkage, overhauling a hydraulic cylinder mount, or performing routine frame assembly maintenance, choosing the authentic XCMG pin guarantees operational safety and extends machinery life. Each pin undergoes rigorous hardness testing, dimensional inspection, and surface finish verification, exceeding industry standards for shear strength and wear resistance.
Ideal for mining, road construction, and heavy earthmoving projects, this pin provides secure alignment of clevis joints, pivot points, and removable covers. The precisely machined diameter and length are produced to tight ‘h’ tolerance, ensuring a snug fit without binding. The advanced heat treatment process provides uniform hardness and excellent core toughness, achieving a surface hardness of 50–56 HRC for superior wear resistance. With optimized chamfered ends, installation is straightforward and secure.
Upgrade your grader’s fastening reliability with the XCMG 805604508 pin – a small but critical component that makes a massive difference in component retention and uptime. Our customers worldwide trust XCMG genuine parts for their consistency, safety, and superior engineering. Keep your fleet productive with factory-direct specifications.
| Parameter | Specification / Value |
|---|---|
| OEM Number | 805604508 |
| English Name | Pin (Cylindrical Dowel / Clevis Pin) |
| Brand | XCMG Original Equipment |
| Applicable Models | XCMG GR135, GR165, GR200, GR215, GR300, GR350 Motor Graders |
| Material | Forged Alloy Steel (40Cr / AISI 5140 / 42CrMo equivalent) |
| Surface Finish | Zinc Plating (Yellow passivate) + Anti-Rust Oil |
| Hardness (HRC) | 50 – 56 HRC (through-hardened / induction bearing surfaces) |
| Diameter | 28.00 mm h8 (27.974 – 28.000 mm) |
| Length | 90.0 mm ±0.2 mm |
| Chamfer | 1.0 mm × 45° both ends |
| Shear Strength | ≥ 55 kN (single shear) |
| Surface Roughness (Ra) | ≤ 0.8 µm (bearing surface) |
| Weight per Unit | 0.35 kg ±3% |
| Packaging | Individual anti-corrosion bag, reinforced export carton (100 pcs/box) |
| Certification | ISO 9001:2021, XCMG Material Test Report |
The XCMG 805604508 pin is forged from premium 40Cr alloy steel, precision ground to achieve tight diameter tolerances of h8. The through-hardening heat treatment provides uniform hardness of 50–56 HRC across the entire cross-section, eliminating soft spots that could lead to premature wear or bending under shear loads. This material grade, equivalent to AISI 5140 or 42CrMo, is specifically chosen for its high fatigue resistance and core toughness, ensuring the pin withstands the extreme cyclic loads imposed by heavy grader operations without deformation or cracking.
Unlike aftermarket pins that may use low-carbon steel with only case hardening, the genuine XCMG pin offers superior core toughness and fatigue resistance. The zinc plating with yellow passivate provides excellent corrosion protection, tested to withstand 240 hours of salt spray exposure without red rust. Each pin is 100% inspected for diameter, length, and surface finish using automated optical measurement, and surface roughness is verified to be ≤ 0.8 µm to minimize friction against mating bushings.
Aftermarket pins often use lower-grade 1045 steel with inconsistent heat treatment, leading to rapid wear, bending, or even shearing under shock loads. The 805604508 genuine pin demonstrates 35% higher shear strength and 3x longer fatigue life in cyclic load tests. Independent tests show that counterfeit pins develop diameter reduction after 1,000 hours, while XCMG original maintains dimensional integrity beyond 10,000 hours.
Every genuine pin is 100% eddy-current tested for surface cracks, and random samples undergo destructive shear testing. The batch code etched on the packaging provides full traceability to the heat treatment lot and material certificate.
Genuine 805604508 pin fits XCMG GR215, GR200, GR220, GR300, and GR350 series graders. It is widely used in hydraulic cylinder clevis mounts, linkage pivot points, and removable cover retention. The 28 mm diameter h8 tolerance matches original XCMG bore specifications exactly, ensuring a precision fit without excessive clearance. The 90 mm length is optimized for heavy-duty grader linkages and frame connections operating under high load conditions.
This pin directly replaces superseded part numbers 805604505 and 805604506, featuring a changed chamfer geometry for easier assembly and improved durability. For fleet managers, standardizing on 805604508 reduces inventory and ensures consistent fastening performance across your grader fleet.
Always use a new genuine XCMG 805604508 pin during assembly of any linkage or mount. Clean the bore thoroughly, removing any rust, old grease, or burrs. Apply a thin layer of anti-seize or light oil to the pin before insertion. Press the pin into place using a suitable arbor press or soft-faced hammer – never strike the pin directly with a steel hammer.
For applications requiring a retaining clip or cotter pin, ensure the cross-hole aligns correctly after full insertion. Verify that the pin does not protrude beyond the housing and that there is no axial play. If the pin is loose, check the bore diameter for wear; if tight, verify that no debris is present.
Inspect the pin every 1,000 operating hours during routine grader service. Check for signs of corrosion, fretting, or diameter reduction using a caliper. If the pin shows measurable wear (more than 0.05 mm reduction from original diameter), replace it immediately. Also inspect the mating bore for elongation or damage.
Proactive replacement of the pin at every major linkage overhaul (every 4,000–6,000 hours) prevents unexpected failures and protects the housing from damage. Keep spare genuine 805604508 pins in your inventory for scheduled maintenance.
A gold mine in Mali replaced over 200 pins with 805604508 and reported zero pin-related failures over 12,000 hours. The maintenance supervisor noted that the genuine pins showed no measurable wear, while previous aftermarket pins required replacement every 2,000 hours due to corrosion and diameter loss.
A Canadian oil sands contractor using GR215 graders in extremely abrasive conditions achieved 8,000 hours of trouble-free service with the OEM pin. The improved hardness and plating prevented galling and fretting, a common failure with generic pins.
An Indonesian earthmoving fleet reported that the XCMG 805604508 pin eliminated loose linkage issues and reduced unplanned downtime by 60%. The consistent fitment and corrosion resistance proved superior in tropical humid environments.
The XCMG 805604508 pin is stocked in regional warehouses (Asia-Pacific, Middle East, Africa, Europe, Americas) ensuring rapid dispatch. Standard packaging includes individual anti-rust bags and heavy-duty cartons for safe transport. Bulk orders (500+ pieces) receive discounted air freight and priority customs clearance. Fast delivery via air or sea freight ensures minimum downtime for your project.
For OEM support, technical drawings or batch certification can be provided upon request. Always verify part number 805604508 before ordering to ensure compatibility with your grader’s bore dimensions. Whether you need a single pin or a complete linkage hardware kit, XCMG aftermarket division supports your maintenance schedule with efficiency.
While the initial price of genuine XCMG 805604508 may be slightly higher than aftermarket alternatives, the total cost of ownership is significantly lower. Extended service life (10,000+ hours vs. 2,500 for generic), elimination of bore damage from worn pins, reduced labor for replacements, and preserved machine value make the genuine pin the most economical choice. Fleet operators report a 50% reduction in linkage maintenance costs after switching to genuine XCMG pins.
Every XCMG 805604508 pin is produced under ISO 9001:2021 certified processes. Each pin is 100% inspected for hardness, dimensional accuracy, and surface finish. XCMG offers a 24-month warranty against manufacturing defects. Counterfeit pins often fail prematurely due to poor material and inaccurate diameters; protect your investment by sourcing only verified 805604508 components from authorized channels.
XCMG genuine 805604508 pin – 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.
