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Protects Clutch From Slipping Due to Low Voltage, Maintains Adequate Voltage to Clutch Coil at All Times

Includes Suction and Discharge Manifolds and a Pressure Relief Valve
Fits 503-116 and 503-117 Compressors

Can Re-use Original Manifolds. For Manifold Replacement Kit, Order 451-1173K

3 Pistons / 6 Cylinders
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Can use HD Alternative Denso Compressor - 503-1163
Can use HD Sanden Style Compressor - 503-117

Includes 27 O-Rings
Single Application, Covers all Utility John Deere Tractors

Heavy Duty Dry-Tech Series to Replace Original OE Parker

Can Use Original JD Version 804-5502
Can Use Alternative Version 804-5501