BT5-47244 12V A/C Compressor – Seltec / Valeo TM21HX, 8-Groove, Direct Mount
$325.22
The BT5-47244 is a 12-volt Seltec / Valeo TM21HX A/C compressor engineered for bus and high-capacity mobile HVAC systems that require an 8-groove serpentine drive and direct-mount configuration. Because this unit uses a 10-cylinder TM21HX platform, it delivers strong, consistent cooling performance in continuous-duty transit applications.
In addition, the compressor supports R134a refrigerant, features a 141 mm 8-groove clutch, and uses rear pad fittings, making it a dependable OEM-style replacement across multiple bus and coach platforms.
In stock (can be backordered)
Description
Overview
The BT5-47244 TM21HX compressor is designed for 12V mobile air-conditioning systems where cooling capacity, durability, and precise fitment are critical. Its direct-mount design simplifies installation, while the rear pad head configuration supports consistent hose alignment in confined engine compartments.
Furthermore, this compressor is factory-charged with PAG46 oil, uses a splined shaft, and supports CW/CCW rotation, allowing flexibility across a wide range of belt-drive layouts commonly found in bus HVAC systems.
Key Features
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12-volt heavy-duty A/C compressor
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Seltec / Valeo TM21HX compressor platform
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Direct-mount configuration
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8-groove serpentine belt drive
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141 mm clutch diameter
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Rear pad fitting configuration
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High-capacity 10-cylinder design
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Designed for continuous mobile HVAC operation
Compressor Specifications
General
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Manufacturer: Seltec / Valeo
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Model: TM21HX
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Voltage: 12V
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Refrigerant Type: R134a
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Number of Cylinders: 10
Mounting & Drive
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Mounting Type: Direct mount
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Drive Type: Belt-driven
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Belt Type: Serpentine
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Clutch Grooves: 8
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Clutch Diameter: 141 mm
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Shaft Type: Splined shaft
Head & Fittings
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Head Type: TM21
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Fitting Port Position: Rear
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Fitting Style: Pad
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A-B Distance: 51 mm
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Replacement Head Assembly: NSS
Oil Specifications
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Oil Type: PAG46
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Factory Oil Charge: 6.9 oz
Electrical Specifications
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System Voltage: 12V
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Wire Type: 2-wire
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Rotation: CW / CCW
Interchange / Cross-Reference Numbers
Primary References
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BTRAC: BT5-47244
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MEI: 5880
OEM & Manufacturer Numbers
304743, 18-10123-04, 10057244, 10357244, 10367276, 435-57244, 488-47244, 10367274, 10367277
Seltec / Valeo References
47244, 5880, 488-57244, 103-57244, 103-57544
Industry & Aftermarket Cross References
03-00738, 1403145, 17-31311-00, 20-47244, 20-47244-HP, 2521562, 340-3326, 400-045
Fleet & Supplier References
ABP N83 304745Q, ABP N83 304754Q, ACC8324, PTAC5880, RF999997031
Red Dot & Related
4379-RD5125301P, RDHRD5125301P, RDT75R86142Q, 75R86142A, 75R86142Q
Additional References
QP21-1562, CO 47244I, CO-6291CA
Typical Applications
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Transit and coach buses
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Shuttle and specialty buses
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High-capacity mobile HVAC systems
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OEM and aftermarket TM21HX compressor replacements
Additional information
| Weight | 19 lbs |
|---|---|
| Make | |
| Model | |
| Voltage | |
| Electric | |
| Mount | |
| Groove | |
| Diameter | |
| Fitting/Port | |
| Wires | |
| Oil Amount | |
| Oil Type | |
| Refrigerant | R134A |
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