The BT5-4270 A/C compressor is engineered for heavy-duty mobile air-conditioning systems that operate under sustained load. Because it uses the proven SD7H15 compressor platform, it delivers high displacement and consistent refrigerant flow in demanding environments.
In addition, this compressor features a direct-long mounting design, which helps maintain proper alignment and simplifies installation in compatible brackets. As a result, belt tracking remains stable while long-term reliability improves.
Furthermore, the PV8 rotor and clutch configuration supports smooth power transfer and efficient torque handling. Therefore, this compressor performs well in applications that demand higher airflow and continuous operation.
The BT5-4270 operates on a 24-volt electrical system and uses a single-wire male bullet connector, which keeps wiring simple and service-friendly across fleet and vocational equipment.
Specifications
General
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BTRAC Part Number: BT5-4270
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Compressor Family: SD7H15
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Compressor Style: Heavy Duty (HD)
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Application Type: Heavy-Duty Mobile HVAC
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Refrigerant Type: R134a
Mounting & Head
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Mount Type: SD7 Direct Long
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Ear ID: T92 / B87
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Cylinder Head: KC
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Port Angle: Horizontal
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Port Clocking: Rear
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Head Port Style: 3/4″ × 7/8″
Clutch & Drive
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Rotor Size: 119
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Rotor Groove: PV8
Gauge Line Dimensions
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To First Groove: 36.58 mm
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To Middle Groove: 49.00 mm
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To End Groove: 61.50 mm
Electrical
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Voltage: 24 V
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Connector: 1-Wire Male Bullet
Internal
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Displacement: 155.00 cc
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Rotation Direction: Clockwise (CW)
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Oil Quantity: 240 cc
Applications & Notes
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Heavy-duty trucks and vocational equipment
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Fleet and off-road machinery
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Mobile HVAC systems using SD7H15 PV8 compressors
However, always verify mounting configuration, belt alignment, port orientation, oil quantity, and electrical connections before installation to ensure proper system performance.
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