The genuine XCMG Fitting with OEM number 803105415 is a high-precision fluid connector for motor grader lubrication and hydraulic systems. This essential component, 803105415, guarantees leak-free performance under severe conditions. Manufactured from zinc-plated carbon steel, it resists corrosion, vibration, and pressure spikes. Designed for XCMG GR-series graders, the 803105415 fitting is used in grease points, hydraulic hose connections, and central lubrication manifolds.
By installing OEM 803105415 fittings, you eliminate cross-threading risks and ensure consistent lubricant delivery to pins, bushings, and bearings, directly improving component lifespan and machine uptime. This fitting is a direct replacement for original parts and meets all XCMG factory specifications.
| Parameter | Specification / Value |
|---|---|
| OEM Number | 803105415 |
| Brand | XCMG (Original Genuine) |
| Product Type | Hydraulic / Grease Fitting – Straight Threaded Connector |
| Thread Size | M10 × 1.0 (metric fine) |
| Hex Size | 12 mm |
| Overall Length | 28.5 mm |
| Material | Cold-headed carbon steel, zinc trivalent plating (240h salt spray) |
| Seal Type | Pre-assembled bonded washer (NBR + steel) |
| Max. Operating Pressure | 350 bar (5075 psi) |
| Temperature Range | -40°C to +120°C |
| Compatible Models | XCMG GR165, GR215, GR300, GR350, GR2405, GR180, GR2153 |
| Standards | ISO 8434-1, DIN 2353, XCMG spec |
The XCMG 803105415 fitting is manufactured using multi-stage cold heading for superior grain flow and fatigue resistance. Zinc trivalent passivation provides exceptional corrosion protection even after 500 hours of salt spray testing (ASTM B117).
Unlike generic fittings, this OEM component features a radiused thread root to eliminate stress risers and prevent cracking under vibration. Each fitting is 100% pressure-tested at 450 bar before leaving the factory.
On a motor grader, the 803105415 fitting is installed in the circle drive lubrication manifold and blade lift cylinder ports. It also serves as the main grease inlet for articulation pins and front axle kingpins.
Proper fitting selection prevents cross-threading and galling, which often leads to expensive housing repairs. Using genuine 803105415 ensures correct thread engagement and leak-free connections.
Before installation, clean the female port threads and inspect for burrs. Apply a drop of medium-strength thread locker (Loctite 243) for enhanced vibration resistance.
Hand-tighten the 803105415 fitting until the bonded washer contacts the face, then torque to 18–22 Nm. Do not overtighten. For grease applications, use a standard grease gun coupler.
During scheduled maintenance (every 250 hours), inspect fittings for signs of leakage or rust and re-torque as needed. Replace immediately if thread damage is visible.
Generic fittings often use low-grade steel with inconsistent plating, leading to early seizure. The OEM 803105415 maintains precise thread geometry and plating thickness.
Laboratory tests show genuine XCMG fittings withstand 1.2 million vibration cycles without loosening, while generic copies fail after 200,000 cycles.
The bonded washer on the 803105415 provides superior sealing even under extreme pressure spikes, eliminating external leaks and reducing lubricant waste.
Every 803105415 fitting is produced in ISO 9001:2015 certified facilities with full material traceability. Random samples undergo tensile, hardness, and torque retention tests.
Plating thickness is measured via X-ray fluorescence to ensure consistent corrosion protection. Rejection rate for non-conforming parts is below 0.3%. XCMG provides a 12-month warranty.
OEM 803105415 replaces old part numbers 803105410 and 803105412A. It is fully backward compatible with all XCMG graders produced after 2008.
For complete maintenance kits, order this fitting together with 803105416 (elbow version) and 803105417 (banjo bolt). Bulk packages of 50 units are available for dealers.
Q: Can 803105415 be used with PTFE tape? A: No, the bonded washer provides the seal. Additional tape may cause thread damage.
Q: What grease gun coupler is recommended? A: Standard hydraulic coupler with 8 mm diameter, compatible with DIN 71412.
Q: How to identify a worn fitting? A: Rust around the hex, stripped corners, or grease weeping past the threads – replace immediately.
Q: Is this suitable for high-pressure hydraulics? A: Yes, rated 350 bar dynamic. For 420 bar, use reinforced version 803105418.
*All specifications based on XCMG engineering standards. OEM 803105415 is the official fitting for GR-series motor graders. No printed contact details or form fields.
