Overview
The BT5-4627 is an OEM-grade replacement for Red Dot 75R8422, designed for demanding HVAC applications in heavy-duty vehicles. This compressor uses the proven Sanden SD7H15HD platform for durability and performance in severe-duty environments.
Key Features
- Compressor model: Sanden SD7H15HD
- Voltage: 12 V
- Pulley / clutch: A2 groove, 125 mm diameter
- Head type: JD head, vertical O-ring fittings (#8/#10)
- Mount type: Ear mount
- Refrigerant: R134a
- Oil type / fill: PAG100, approx. 300 cc factory charge
- Displacement: 9.5 cu.in.
- Rotation: Clockwise
- Connector: 1-wire Packard with diode protection
Technical Identifiers
- BTRAC Part #: BT5-4627
- Red Dot #: 75R8422
- Sanden #: 4627
- MEI #: 5727
- Alliance #: ABP N83 304125, ABP N83 304283, ABP N83 304382
Interchange & Cross‑Reference
BT5-4627, 75R8422, 4627, 5727, ABP N83 304125, ABP N83 304283, ABP N83 304382, 4379-RD571200, 3946616, 61104-3202, 8164872, 03-3490, 18-00093-00, 525723, LE1145, 1691745C91, RDHRD571200P, RDT75R8422
Applications
Commonly used in:
- Heavy-duty trucks
- Off-road equipment
- Bus and coach HVAC systems
- Agricultural machinery requiring 12V SD7H15 compressors
What’s Included
- New BT5-4627 compressor assembly with clutch (A2 groove, 125 mm)
- Manifold not included (reuse or purchase separately)
Installation Notes
- Flush system and replace receiver-drier/accumulator.
- Verify oil type and quantity (PAG100).
- Evacuate and recharge with R134a per OEM specs.
- Check belt alignment and clutch air gap.
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