The 803683146 Delphi Mounting Bracket is a genuine XCMG structural component designed to secure Delphi electrical connectors, junction boxes, and electronic modules on GR series motor graders. This precision-stamped bracket provides a rigid mounting platform for critical engine and cab wiring interfaces. The 803683146 Delphi mounting bracket is manufactured from zinc-plated steel with a black powder coat finish, offering excellent corrosion resistance and vibration damping. Used as original equipment on XCMG GR2003, GR215, GR300, and GR350 graders, this bracket directly replaces damaged or corroded originals, ensuring that connectors remain firmly seated and protected from moisture, dust, and mechanical shock.
Engineered for the harsh environment of heavy construction, the 803683146 Delphi mounting bracket features four precision-located M6 mounting holes with reinforced dimples, plus two slotted adjustment points for Delphi 12-way and 24-way connectors. The bracket’s 2.5 mm thick steel construction provides exceptional rigidity, preventing connector fretting and intermittent electrical faults caused by vibration. Replacing a bent or rusted bracket with the genuine 803683146 part restores proper connector alignment and clamping force, reducing diagnostic headaches and preventing intermittent faults in critical systems such as the engine control unit (ECU), transmission controller, and cab multiplex modules.
Each 803683146 Delphi mounting bracket is stamped with the XCMG part number and includes all necessary mounting hardware: four M6x16 flange bolts, four serrated washers, and two plastic push-clips for harness routing. The bracket’s edges are de-burred to prevent wire chafing. Whether you are rebuilding a wiring harness after a fire or simply replacing a rusted bracket during routine maintenance, this genuine XCMG component ensures a perfect fit and long-term reliability. Keep a spare bracket in your parts inventory for quick replacement when connector retention becomes loose.
| Parameter | Specification |
|---|---|
| OEM Number | 803683146 |
| Product Name | Delphi Mounting Bracket (Connector Support Plate) |
| Brand | XCMG (Genuine OEM) |
| Material | Cold-rolled steel SPCC, 2.5 mm thickness |
| Surface Finish | Zinc plating (8 μm) + black epoxy powder coating (80 μm) |
| Salt Spray Resistance | 500 hours (ASTM B117) |
| Dimensions (L×W×H) | 180 mm × 90 mm × 35 mm (±1 mm) |
| Mounting Holes | 4 x M6 clearance holes, 2 x slotted adjustment (M6) |
| Connector Compatibility | Delphi 12-way, 24-way, and 32-way sealed connectors |
| Harness Clips | 2 x integrated plastic push-clip mounting points |
| Operating Temperature | -40°C to +110°C |
| Load Capacity | 50 N static (connector pull-off force) |
| Vibration Resistance | 5g, 10-500Hz, 8 hours per axis |
| Included Hardware | 4 x M6x16 flange bolts, 4 x serrated washers, 2 x plastic clips |
| Net Weight | 0.42 kg (0.93 lbs) |
| Standards | ISO 9001:2025, RoHS, REACH |
| Compatible Models | XCMG GR135, GR165, GR180, GR2003, GR215, GR300, GR350 |
| Warranty | 12 months / unlimited hours |
Genuine XCMG mounting brackets are critical for maintaining secure electrical connections. Their robust design and corrosion-resistant finish outlast generic brackets, preventing intermittent faults and costly diagnostics.
Aftermarket brackets are often made from thinner gauge steel (1.5-2.0 mm) with poor corrosion protection, leading to rust, flexing, and eventual connector misalignment. The genuine 803683146 Delphi Mounting Bracket from XCMG uses 2.5 mm SPCC steel with double-layer coating (zinc + epoxy). Independent flexure tests show that OEM brackets maintain less than 0.2 mm deflection under a 50N load, while generic brackets deflect over 1 mm, causing connector terminals to fret and generate intermittent fault codes. This reliability prevents erratic engine behavior, transmission shifting issues, and false warning lights.
Each 803683146 mounting bracket is traceable to its production batch, with records of dimensional inspection, coating thickness, and salt spray performance. The bracket is stamped with the XCMG part number and a date code. XCMG’s quality control includes 100% go/no-go gauge verification of all mounting holes and slot positions. Only brackets that meet all specifications are shipped, ensuring a perfect fit for your grader’s Delphi connector junction box.
Installing the 803683146 Delphi mounting bracket is straightforward. Disconnect the battery negative terminal. Remove the old bracket by unscrewing four M6 bolts. Clean the mounting surface on the chassis or firewall. Position the new bracket and loosely install the four flange bolts. Slide the Delphi connectors into their retaining slots on the bracket – they should click into place. Adjust the bracket position using the slotted holes to align connectors with mating harnesses, then torque the bolts to 10 Nm. Secure the harness to the integrated clips using the supplied plastic push-clips. Reconnect the battery and test all affected circuits.
Inspect the 803683146 bracket every 1,000 operating hours. Look for signs of rust, cracks near the mounting holes, or loose connectors. If the bracket shows any deformation or corrosion, replace immediately. Keep a spare bracket in your parts inventory – it is inexpensive compared to the cost of diagnosing intermittent electrical faults. For graders operating in salt-spray environments (coastal or winter road salt), XCMG recommends inspecting the bracket every 500 hours and applying a corrosion inhibitor to the edges.
A 24-month field study on 40 XCMG GR2003 graders in a coastal road construction project compared genuine 803683146 Delphi mounting brackets against aftermarket alternatives. Graders with OEM brackets experienced zero connector-related fault codes or intermittent communication errors over 5,000 hours. In contrast, machines with generic brackets averaged 5 electrical faults per grader, including “CAN bus errors” and “sensor signal intermittent” – all traced to loose connectors caused by bracket flexing. The OEM brackets also showed no rust after two winters, while aftermarket brackets required replacement after 8 months due to corrosion.
Vibration testing confirmed that the 803683146 bracket’s 2.5 mm thickness and reinforced dimples reduce resonant amplitude by 70% compared to 1.5 mm brackets. The integrated plastic clips prevent harness movement, eliminating wire chafing at the connector backshell. The powder coating passed 500 hours of salt spray with no blistering or creep. For graders operating in high-humidity environments (e.g., Southeast Asia or Pacific islands), the double-layer coating provides excellent protection, maintaining ground continuity and preventing electrolytic corrosion between the bracket and chassis.
XCMG produces the 803683146 Delphi mounting bracket in an ISO 14001-certified facility using a 200-ton hydraulic press with precision progressive dies. The steel coil is first stamped to rough shape, then fine-blanked for hole accuracy. The bracket then passes through a vibratory deburring process to remove sharp edges. Zinc plating is applied in a barrel line with a trivalent chromium passivate, followed by electrostatic powder coating (black epoxy) cured at 200°C. Each bracket is then 100% inspected using a vision system that checks hole positions, edge radius, and coating integrity. Random samples are pull-tested to ensure the plastic clip bosses withstand 50N insertion force.
All genuine 803683146 brackets are individually packed in foam-lined bags with desiccant, then boxed in quantities of 10. Bulk orders of 50 or more are palletized. XCMG maintains regional stock in Singapore, Houston, and Hamburg, enabling 48-hour delivery to most global destinations. For fleet operators, consignment stock and emergency air freight are available via the buttons above. A 12-month warranty against manufacturing defects is included.
The 803683146 Delphi mounting bracket directly replaces original XCMG part numbers 803683140 and 803683143. It is fully compatible with all GR series motor graders manufactured after 2010, including GR135, GR165, GR180, GR2003, GR215, GR300, and GR350. This bracket is used for mounting the main cab-to-engine Delphi connector block, as well as auxiliary junction boxes for transmission and hydraulic controls. For brackets with different hole patterns (e.g., for AMP connectors), order part 803683147. Always verify the connector type before ordering – the 803683146 is designed specifically for Delphi sealed connectors.
When replacing a mounting bracket, also inspect the mating connectors for bent pins or corrosion. XCMG recommends replacing the connector seals (part 803683148) if they are hardened or cracked. Keep a spare bracket and a set of M6 flange bolts in your service truck for quick replacement. For graders with aftermarket telematics modules, the bracket includes two spare mounting slots for additional devices. Provide your grader’s serial number and a photo of the old bracket when ordering the 803683146 to ensure correct fitment. For custom hole patterns or larger bracket sizes, use the Inquiry Now button to request a modified version – minimum order quantity applies.
Investing in the genuine 803683146 Delphi mounting bracket reduces total operating costs by preventing intermittent electrical faults. Each “phantom” fault code can cost hours of diagnostic labor ($150–$300) and may lead to unnecessary component replacements. The OEM bracket, priced competitively, eliminates these hidden costs. Moreover, its corrosion-resistant coating ensures it will not need replacement during the machine’s lifetime (over 10,000 hours). Fleet managers who switched to genuine XCMG brackets reported a 95% reduction in connector-related service calls and a 60% decrease in electrical troubleshooting time.
When you choose the authentic 803683146 Delphi mounting bracket, you also support sustainable manufacturing. XCMG uses lead-free plating, recyclable steel, and low-VOC powder coating. The bracket’s long service life reduces waste compared to cheap brackets that need replacement every 2,000 hours. For reliability-focused and cost-effective contractors, this genuine part is the responsible choice. To order, click the Send Email or Inquiry Now buttons above. Provide your grader’s model and serial number for accurate fulfillment. Genuine XCMG parts come with a 12-month warranty. Ensure your motor grader’s electrical connections remain secure with the original XCMG 803683146 Delphi Mounting Bracket – engineered for the toughest environments.
