Standard Motor Products
AC Compressor Clutch Relay — Land Rover Defender
AC Compressor Clutch Relay — Land Rover Defender
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AC Compressor Clutch Relay — Land Rover Defender
A failed compressor clutch relay is one of the most common and least expensive causes of an AC compressor that won't engage at all. Before replacing the compressor — or any other major AC component — confirm the clutch is actually receiving power. A relay failure produces identical symptoms to a seized compressor: no clutch engagement, no cooling, no noise.
Defender electrics of this era are not their strongest suit. The relay is a standard 4-pin AC compressor clutch type and is straightforward to check and replace. It costs a fraction of a compressor and takes minutes to swap.
Check the clutch relay before condemning the compressor. See the Defender V8 AC Repair & Service Guide for the full diagnosis sequence.
Part Number
Standard Motor Products RY-727
Fitment
Land Rover Defender V8, classic shape 1984–2000. Universal 4-pin AC compressor clutch relay application — confirm socket type matches before ordering.
What You Get
One AC compressor clutch relay.
Not sure on fitment? Send us your VIN and we’ll check before anything ships.
Description
AC Compressor Clutch Relay — Land Rover Defender
A failed compressor clutch relay is one of the most common and least expensive causes of an AC compressor that won't engage at all. Before replacing the compressor — or any other major AC component — confirm the clutch is actually receiving power. A relay failure produces identical symptoms to a seized compressor: no clutch engagement, no cooling, no noise.
Defender electrics of this era are not their strongest suit. The relay is a standard 4-pin AC compressor clutch type and is straightforward to check and replace. It costs a fraction of a compressor and takes minutes to swap.
Check the clutch relay before condemning the compressor. See the Defender V8 AC Repair & Service Guide for the full diagnosis sequence.
Part Number
Standard Motor Products RY-727
Fitment
Land Rover Defender V8, classic shape 1984–2000. Universal 4-pin AC compressor clutch relay application — confirm socket type matches before ordering.
What You Get
One AC compressor clutch relay.
Not sure on fitment? Send us your VIN and we’ll check before anything ships.
Fitment
Part Number
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