BT5-4536 12V Heavy-Duty A/C Compressor – SD5H14HD, Ear Mount, 2-Groove 132mm, KG Head

Overview

The BT5-4536 SD5H14HD compressor is engineered for 12-volt heavy-duty mobile air conditioning systems, particularly in farm and off-road equipment where durability and vibration resistance are critical. Because of its ear 8-long mounting design, the compressor provides added stability in applications exposed to rough terrain and extended operating cycles. At the same time, the 2-groove, 132 mm clutch supports reliable belt engagement across traditional dual 1/2-inch belt drive systems.

Additionally, this unit uses a KG-style head with horizontal #8 and #10 male insert O-ring ports, which allows for straightforward hose routing in both OEM and aftermarket installations. As a result, it integrates easily into replacement and retrofit systems. Furthermore, its CW / CCW rotation capability simplifies application matching across a wide range of equipment platforms.

Key Features

• 12-volt heavy-duty A/C compressor

• SD5H14HD compressor platform

• Ear 8-long mounting configuration

• 2-groove clutch for dual V-belt systems

• 132 mm clutch diameter

• KG-style cylinder head

• Horizontal male insert O-ring fittings (#8 / #10)

• CW / CCW rotation capability

• Designed for continuous farm and off-road HVAC operation

Compressor Specifications

General

• Compressor Family: SD5H14

• Model: SD5H14HD

• Style: Heavy Duty (HD)

• Voltage: 12V

• Refrigerant Type: R134a

• Rotation: CW / CCW

• Displacement: 8.4 cu.in.

• Number of Cylinders: 5

Mounting & Drive

• Mounting Style: Ear, 8 Long

• Drive Type: Belt-driven

• Belt Type: Two 1/2″ belts

• Clutch Grooves: 2

• Clutch Diameter: 132 mm

• Shaft Type: SD5 keyed shaft

Head & Fittings

• Head Type: KG

• Fitting Port Position: Horizontal

• Fitting Style: Male insert O-ring

• Fitting Sizes: #8 and #10

Oil Specifications

• Oil Type: PAG100

• Factory Oil Charge: 210 cc

Electrical Specifications

• System Voltage: 12V

• Wire Type: 1-wire male bullet connector

• Diode Protection: None

Service & Replacement Components

• Replacement Clutch Assembly: 5057

• Replacement Head Assembly: 5638G

Interchange / Cross-Reference Numbers

• BTRAC: BT5-4536

• MEI: 5730

• Sanden: 4536

• Manufacturer #: 6676

• Alliance: 304362, 304883

• Kysor: 1401333

Additional Interchange References:
1001247898, 20-10018, 5730, 6676, 75R90192, 8023, 8030, ABP N83 304365, E-801186, RDT75R90192

Typical Applications

• Agricultural equipment

• Off-road and construction machinery

• Industrial and vocational vehicles

• Replacement and retrofit mobile A/C systems