Product Introduction
This curated assortment covers all mission-critical wear components, mechanical assemblies and safety parts for the Ingersoll Rand MR150-KA-1C manrider winch, including precision springs, control handles, retainer rings, O-rings, emergency stop valves, high-grade bearings, friction plates, oil seals, gaskets and steel balls. All parts comply with global personnel lifting safety standards, ISO 9001 quality benchmarks and Ingersoll Rand OEM performance requirements, with full material traceability and factory safety testing. The lineup features heat-treated alloy steel structural components, high-durability elastomer seals, wear-resistant friction materials and precision-machined bearing assemblies, fully mapped to Ingersoll Rand OEM part numbers for simplified inventory management and emergency field repairs.
Functional Performance Specifications
These MR150-KA-1C manrider winch spare parts deliver industry-leading safety and reliability: precision bearings (5656-2141, 5080-series) support smooth winch operation with a calculated L10 service life of 20,000+ operating hours; friction plates (6302–8241, 9644–1552) provide consistent braking torque for 150kg rated load capacity, eliminating slippage during lifts; multi-profile sealing components (O-rings, oil seals) maintain a maximum leak rate of ≤0.01 SCFM to prevent lubricant loss and contamination; emergency stop valves (9579-0108) activate in ≤0.5 seconds for instant winch shutdown; and high-tensile springs ensure reliable control mechanism actuation under all operating conditions.
Structural & Material Features
- OEM Precision Machining: All metal components are machined to tight tolerances (±0.0005 inch), ensuring perfect fitment with MR150-KA-1C winch modules and eliminating premature wear from misalignment
- High-Strength Material Selection: Heat-treated alloy steel for bearings, springs and retainer rings; wear-resistant friction material for brake plates; oil-resistant nitrile rubber for seals and O-rings; and corrosion-resistant steel for hardware to withstand harsh rig environments
- Safety-Focused Design: Critical safety components (emergency stop valve, friction plates) meet global personnel lifting standards, with redundant design to prevent catastrophic failure
- Modular Repair Design: Pre-matched seal kits, bearing sets and brake assemblies reduce field overhaul time by 60%, minimizing non-productive time on the rig floor
- Leak-Proof Sealing System: Combination of O-rings, oil seals and gaskets forms a multi-layer barrier against lubricant leakage and debris ingress
Applicable Operating Conditions
These spare parts are built for harsh onshore and offshore drilling environments, optimized for Ingersoll Rand MR150-KA-1C manrider winches used in personnel lifting, rig access and maintenance operations. They perform reliably in ambient temperatures ranging from -20°F to 350°F, resist exposure to drilling mud, corrosive brine and rig lubricants, and endure continuous high-cycle operation. Components are suitable for land rigs, offshore platforms and mobile drilling units, complying with strict personnel lifting safety certifications for hazardous oilfield areas.
Maintenance & Service Recommendations
- Inspect all sealing components (O-rings, oil seals, gaskets) every 100 operating hours for signs of wear, cracking or extrusion; replace full seal kits during scheduled overhauls (every 6 months or 1,500 operating hours)
- Lubricate bearings and friction plate assemblies with Ingersoll Rand-recommended high-temperature grease every 250 operating hours to prevent friction wear and brake chatter
- Test the emergency stop valve (9579-0108) weekly to ensure instant actuation; replace the valve immediately if response time is delayed
- Check friction plate wear monthly; replace plates when wear reaches 50% of original thickness to maintain full braking performance
- Inspect retainer rings and springs quarterly for fatigue or damage; replace worn components to prevent control mechanism failure
- Stock critical high-wear safety parts (emergency stop valve, friction plates, bearings, seals) at recommended minimum levels to avoid unplanned downtime during emergency repairs
We supply the following spare parts:
| Item No. | Part Number | Unit | Description | Manufacture |
| 1 | 71348346 | Ea | SPRING | Ingersol Rand |
| 2 | 71348353 | Ea | Handle BALL | Ingersol Rand |
| 3 | 382-32532 (43803626) | Ea | Handle POST | Ingersol Rand |
| 4 | 4771-3009 (38592408) | Ea | Retainer RING | Ingersol Rand |
| 5 | 5821-6529 (38640629) | Ea | O-RING | Ingersol Rand |
| 6 | 6912-8541 (38553889) | Ea | SPRING | Ingersol Rand |
| 7 | 9579-0108 (38551180) | Ea | Emergency Stop VALVE | Ingersol Rand |
| 8 | 5656-2141 (38597225) | Ea | BEARING | Ingersol Rand |
| 9 | 6302–8241 (38548186) | Ea | Friction PLATE | Ingersol Rand |
| 10 | 4770-0015 (38522264) | Ea | Retainer RING | Ingersol Rand |
| 11 | 4770-0029 (38522272) | Ea | Retainer RING | Ingersol Rand |
| 12 | 4770-3032 (38522280) | Ea | Retainer RING | Ingersol Rand |
| 13 | 5000-0002 (38522116) | Ea | Needle BEARING | Ingersol Rand |
| 14 | 5080-0005 (38522140) | Ea | BEARING | Ingersol Rand |
| 15 | 5080-0006 (38522157) | Ea | BEARING | Ingersol Rand |
| 16 | 5080-0009 (38522165) | Ea | BEARING | Ingersol Rand |
| 17 | 5801-3430 (38533212) | Ea | Oil SEAL | Ingersol Rand |
| 18 | 5801-9830 (38540456) | Ea | Oil SEAL | Ingersol Rand |
| 19 | 5823-5229 (38548236) | Ea | O-RING | Ingersol Rand |
| 20 | 5823–9129 (38767380) | Ea | O-RING | Ingersol Rand |
| 21 | 6511-0441 (38648184) | Ea | PLUG | Ingersol Rand |
| 22 | 9644-1048 (38578258 | Ea | GASKET | Ingersol Rand |
| 23 | 9644–1552 (38774139) | Ea | Friction PLATE With SPRING | Ingersol Rand |
| 24 | 6940-1625 (38542924) | Ea | BALL | Ingersol Rand |
Field Failure Repair Case Studies
Case 1: MR150-KA-1C Winch Brake Slippage
A drilling rig experienced dangerous brake slippage during personnel lifting, traced to worn friction plates (6302–8241) and fatigued springs (71348346). Installing OEM friction plates and springs restored consistent braking torque, eliminating slippage and ensuring safe lifting operations.
Case 2: Winch Bearing Failure & Abnormal Noise
The MR150-KA-1C winch produced loud grinding noise and rough operation due to a failed needle bearing (5000-0002) and standard bearing (5080-0005). Swapping in OEM bearing components eliminated noise, restored smooth rotation and prevented further damage to internal winch parts.
Case 3: Emergency Stop Valve Malfunction
A winch failed to shut down instantly when the emergency stop was activated, caused by a faulty 9579-0108 emergency stop valve. Replacing the OEM valve restored instant shutdown capability, complying with safety standards and protecting rig personnel.
Frequently Asked Questions (FAQ)
| Question | Answer |
| Are these parts compatible with all Ingersoll Rand MR150-KA-1C manrider winches? | Yes, this parts list is designed exclusively for the MR150-KA-1C model, matching Ingersoll Rand OEM part numbers and safety specifications for full drop-in fitment. |
| Do these spare parts meet global personnel lifting safety standards? | Absolutely, all safety-critical components (brakes, emergency valve, bearings) comply with strict international personnel lifting standards and Ingersoll Rand OEM safety benchmarks. |
| Can these parts be used for routine maintenance and emergency safety repairs? | Yes, these OEM-grade spares work for scheduled preventive maintenance, full winch overhauls and emergency safety repairs to minimize downtime and maintain compliance. |
Procurement Guidance & Closing Value Statement
This Ingersoll Rand MR150-KA-1C manrider winch spare parts catalog serves as both a formal procurement benchmark and a technical safety troubleshooting reference, designed to eliminate the risks of substandard aftermarket parts, reduce long-term maintenance expenses and uphold the highest safety standards for personnel lifting operations. Every part is a verified OEM-certified component that guarantees perfect fitment, consistent safety performance and compliance with industry regulations, making it the definitive resource for maintaining MR150-KA-1C winches.
Whether you need to replace worn braking components, faulty bearings, degraded seals, critical safety valves or hardware to restore your winch functionality, or stock critical OEM spares for routine maintenance and unforeseen safety breakdowns, this catalog provides the exact part numbers, quantities and specifications your operation demands. Secure your supply of authentic Ingersoll Rand MR150-KA-1C manrider winch spare parts today to protect your equipment investment, maintain uninterrupted safe personnel lifting and keep your rig operations compliant and efficient in the field.
