BT5-4308 12V Heavy-Duty A/C Compressor – SD7H15, Ear Mount, 152mm 2-Groove

Description

Product Overview

The BT5-4308 SD7H15-style compressor is engineered for durability, consistent cooling output, and long service life in heavy-duty mobile A/C systems. It uses a proven ear-mount configuration and a 152 mm A2 2-groove clutch, making it a dependable choice for belt-driven applications requiring stable alignment and load handling.

Additionally, the compressor is optimized for R134a refrigerant, includes the correct 135 cc oil charge, and features a rear-port GV head with standard 3/4″ x 7/8″ ports. As a result, installation remains straightforward while maintaining OEM-style hose routing and electrical compatibility.

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Key Features

• Heavy-duty SD7H15 compressor platform

• 12V clutch with 152 mm 2-groove pulley

• Ear mount (8 long) configuration

• Rear-ported GV cylinder head

• Horizontal port orientation

• Designed for R134a refrigerant

• Pre-oiled for installation

• 1-wire Packard connector with integrated diode

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Essential Specifications

• Compressor Family: SD7H15

• Style: Heavy Duty (HD)

• Mount Type: Ear, 8 Long

• Ear ID: 83.3 mm

• Refrigerant: R134A

• Displacement: 155 cc

• Rotation Direction: Clockwise (CW)

• Oil Quantity: 135 cc

• Cylinder Head: GV

• Port Angle: Horizontal

• Port Clocking: Rear

• Head Port Style: 3/4″ x 7/8″

• Rotor Size: 152 mm

• Rotor Groove: A2

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Pulley & Clutch Dimensions

• Gauge Line to First Groove: 23.80 mm

• Gauge Line to Middle Groove: 0.00 mm

• Gauge Line to End Groove: 39.55 mm

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Electrical Specifications

• Coil Voltage: 12V

• Connector Type: 1-Wire Male Packard

• Connector Part Number: 12015791

• Diode: Integrated

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Interchange Numbers

158577, ZGG705406, 03-3823, 1000239130, 1401429, 1410073, 20-15000, 20-15000-AM, 4308, 4308SAN, 4807, 54308, 54308G, PTAC54308

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Applications

Commonly used in:

• Heavy-duty trucks

• Buses and coaches

• Off-road and construction equipment

• Specialty and vocational vehicles

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Installation Notes

Always confirm belt alignment, pulley spacing, and port orientation before installation. Proper evacuation and charging procedures are required to ensure optimal system performance and compressor longevity.