Carrier Transicold Truck Units Refrigeration Spare Part 50-01173-03 50-01176-00 Ultra Assembly Clutch
Product Overview
The Ultra Assembly Clutch (PN 50-01173-03 / 50-01176-00) is a direct-replacement compressor clutch assembly engineered for Carrier Transicold truck refrigeration units (Ultra series) and compatible Thermo King applications. The assembly couples the vehicle/drivetrain (or electric drive) to the refrigeration compressor, engaging and disengaging to control compressor operation.
Manufactured to OEM-quality standards, this clutch assembly includes the clutch hub, friction plate (disc), electromagnetic coil (where applicable), bearings, retaining hardware and a corrosion-resistant housing. It is precision-machined and dynamically balanced to minimize vibration and wear. The part is designed to restore correct compressor engagement characteristics -- protecting the compressor from liquid slugging, reducing vibrational stress, and enabling reliable temperature control for refrigerated transport.
This product is intended for use during scheduled maintenance, compressor overhaul or emergency replacement when original clutch components show wear (slipping, noise, excess current draw, or visible damage). Units are bench-tested before shipment to verify coil resistance, mechanical runout and engagement behavior.
Key Features & Advantages
- OEM-fit replacement -- Designed to match Carrier Transicold Ultra series mounting points and interfaces for plug-and-play installation.
- Durable construction -- High-strength steel housing, robust friction material and sealed bearings for long service life in harsh transport environments.
- Precision balanced -- Dynamic balancing reduces vibration, improves bearing life and reduces noise during operation.
- Reliable engagement -- Consistent engagement torque to protect the compressor and ensure stable refrigeration cycles.
- Corrosion-resistant finish -- Treated surfaces for extended life in humid, salty, or chemically aggressive conditions.
- Electrical integrity tested -- Coil/isolation resistance checked to factory-equivalent tolerances prior to shipment.
- Reduced downtime -- Direct-fit replacement minimizes service time and fleet downtime.
- Refurbish & upgrade options -- Available reconditioned assemblies or rebuilt units on request (subject to inspection and availability).
Installation & Maintenance Instructions
Safety first: disconnect battery/vehicle power and isolate the refrigeration system before beginning work. Only qualified technicians should perform installation.
- Prepare vehicle and tools -- Park on level ground, chock wheels and disconnect power. Gather torque wrench, puller (if required), feeler gauge, thread locker (if required by OEM), and anti-seize.
- Remove belt and accessories -- Release belt tensioner and remove drive belt(s). Note belt routing.
- Remove old clutch assembly -- Unplug electrical connector, remove retaining bolts/nut(s) and slide the clutch hub off the compressor shaft per Carrier instructions. Use a proper puller to avoid shaft damage.
- Inspect compressor shaft & bearings -- Check shaft runout, keyway condition and bearing play. Replace compressor bearings if excessive play or scoring is present.
- Clean mounting area -- Remove debris, corrosion and old sealant; ensure shaft / mount faces are clean and dry.
- Install new clutch assembly -- Slide new hub and friction plate onto shaft. Align splines/key and install retaining hardware. Torque bolts to Carrier-specified values (do not over-torque). Set air gap between clutch plate and pulley/face per Carrier specification -- verify against OEM manual.
- Reconnect electrical -- Verify coil voltage/connector match vehicle system (12V/24V as applicable). Reconnect wiring harness using proper corrosion protection on contacts.
- Reinstall belt and adjust tension -- Fit belt, adjust tension per manufacturer spec and rotate compressor by hand to check for binding.
- Functional test -- Reconnect power, start unit and cycle the clutch. Verify clean engagement/disengagement, normal current draw and no abnormal noises or vibration. Monitor oil pressure/temperature and system pressures during initial run.
- Post-service check -- After a short test run, re-torque mounting bolts and re-check belt tension.
Maintenance tips: inspect clutch air gap, electrical connector and belt condition at scheduled intervals; listen for bearing noise and monitor coil current for anomalies. Replace immediately if slipping, burning smell, or abnormal vibration occurs.
Our Services
- Stock & fast supply -- factory-stock and quick-ship options for fleet maintenance programs.
- OEM & remanufactured units -- new OEM replacement or professionally rebuilt assemblies on request.
- Testing & QC -- 100% bench testing (coil resistance, runout, dynamic balance and engagement check) before dispatch.
- Technical support -- installation guidance, troubleshooting and compatibility checks (provide chassis/serial number).
- Custom solutions -- modification, balance tuning, protective coatings for marine or corrosive environments.
- Warranty & returns -- typically 12 months limited warranty (terms apply); RMA process for defective units.
Technical Specifications
| Attribute |
Details |
| Product Name |
Ultra Assembly Clutch - Carrier Transicold |
| Part Numbers |
50-01173-03 / 50-01176-00 |
| Type |
Compressor clutch assembly (electromagnetic style / direct-drive type) |
| Compatibility |
Carrier Transicold Ultra series refrigeration units; confirm model/serial before order |
| Primary Function |
Engage/disengage compressor; transmit drive torque while protecting compressor from over-load |
| Housing Material |
High-tensile steel with corrosion-resistant finish |
| Friction Material |
High-temperature composite friction disk (OEM-grade) |
| Bearings |
Sealed roller/ball bearings (pre-lubricated) |
| Coil |
Insulated electromagnetic coil (electrical spec depends on variant; 12V/24V options available -- confirm required voltage) |
| Mounting |
OEM bolt pattern / spline shaft interface (direct replacement) |
| Dynamic Balance |
Yes -- factory-balanced to reduce runout and vibration |
| Electrical Connector |
OEM-style plug (verify harness compatibility) |
| Operational Environment |
Designed for transport refrigeration (road vibration, wide temp range) |
| Operating Temperature |
Designed for typical transport refrigeration ranges (industrial ambient extremes); verify system limits |
| Testing |
Bench-tested for coil resistance, engagement, runout, and dynamic balance |
| Packaging |
Protective-packed for transport; export carton or wooden crate available for bulk orders |
| Warranty |
Standard: 12 months (subject to terms) -- extended warranty options may be available |
| MOQ |
From 1 pc (stock permitting); bulk pricing available |
| Certifications |
Manufactured to ISO quality processes; tested to meet Carrier OEM fit/finish standards |
| Lead Time |
Stock/express options available; confirm at time of order |
| Weight & Dimensions |
Model-specific -- provide chassis/serial number for exact drawing and mass data |
| Recommended Tools |
Puller set, torque wrench, feeler gauge, anti-seize, OEM service manual |
| Safety |
Disconnect power, follow OEM safety procedures; recommended install by qualified technician |
Ordering Guidance & Notes
- Verify fitment: Always confirm the truck/refrigeration unit model and serial number before ordering to ensure correct part variant (50-01173-03 vs 50-01176-00 may differ by sub-model or electrical variant).
- Voltage variants: Many truck refrigeration systems use vehicle electrical systems (12V or 24V). Confirm coil voltage before installation. If you are unsure, provide unit model and VIN/serial to our technical team.
- Refurbish option: If you have a worn clutch assembly and prefer cost-effective options, we offer inspection & remanufacture services (subject to core condition).
- Spare parts & kits: We can supply associated hardware kits (mounting bolts, seals, spacer shims) and compressor bearing kits to support a full service job.
Frequently Asked Questions
Q1: When will you arrange the delivery?
A: Generally 1-2 weeks after the payment, and we will continually inform customer the goods carriage status, until you receive the goods.
Q2: Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery.
Q3: Can we get the some technological training?
A: Our company provide the complete technological training, including: installation, use and maintenance.
Q4: How long is your products warranty?
A: The products of our lifetime for you to provide maintenance, one year warranty, Courier fees to pay half, after a year of maintenance fees shall be borne by the buyers.
Q5: How do you make our business long-term and good relationship?
A: 1. We keep good quality and competitive price to ensure our customers benefit; 2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
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