Description
Sanden SD7H15 Heavy-Duty A/C Compressor – Part #204-1767 (Sanden 4709)
Maximize system uptime and maintain cabin comfort in the harshest environments with the genuine Sanden SD7H15 Heavy-Duty A/C Compressor (Air Components Part #204-1767). Built specifically to handle the rigorous demands of commercial trucking, agricultural machinery, and industrial earth-moving equipment, this premium compressor delivers unmatched reliability where aftermarket copies fail.
The Sanden 4709 features a robust 7-cylinder design that offers smoother operation, less vibration, and a longer service life than standard 5-cylinder models. With its heavy-duty ear mount configuration, integrated 12V 2-groove (A2) V-belt clutch, and a specialized KG-style cylinder head with horizontal ports, this unit serves as a direct, drop-in replacement for a wide range of OEM applications.
Key Technical Specifications
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Air Components SKU: 204-1767
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Manufacturer: Sanden
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Model Number: 4709 / U4709
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Compressor Series: SD7H15 HD (Heavy Duty)
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Displacement: 155 cc/rev
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Number of Cylinders: 7
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Mounting Type: Direct Ear Mount
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Cylinder Head Design: KG / KC Style
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Port Direction: Horizontal (Rear Exit)
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Port Sizes: 3/4″ Male O-Ring (Discharge) x 7/8″ Male O-Ring (Suction)
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Clutch Diameter: 125 mm (approx. 4.92 inches)
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Belt Profile: 2-Groove (A2) V-Belt
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Voltage: 12 Volts
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Refrigerant Type: R134a
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Oil Type: SP15 / PAG 100
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Factory Oil Charge: 135 cc (Verify your specific system requirements before installation)
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Industry Cross-References & Compatibility
This compressor seamlessly replaces several OEM and aftermarket part numbers. Ensure a perfect fit by cross-referencing your old unit with the part numbers below:
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Sanden: 4709, U4709, SD4709
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Omega: 20-09979-AM
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UAC: CO 4709C
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OEM Industry Interchanges: 2259535000, 2259343000
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Installation & Maintenance Notes
To validate your warranty and ensure the longest possible service life for your new Sanden compressor, please follow standard commercial HVAC installation protocols:
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Flush the System: Thoroughly flush the A/C system to remove old debris, contaminated oil, and metallic particles from the previous compressor failure.
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Replace Critical Components: Always replace the Receiver-Drier or Accumulator and the Expansion Valve alongside the new compressor.
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Oil Level Verification: The compressor comes pre-charged with factory SP15/PAG oil for shipping and storage. Always drain, measure, and match the oil quantity to your vehicle’s specific system guidelines before final charging.
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Pull a Deep Vacuum: Ensure a deep vacuum is pulled for at least 30–45 minutes to boil off any hidden moisture within the system prior to recharging with R134a refrigerant.
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