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STC3192 - O-Ring by Land Rover Land Rover Range Rover Defender, Discovery, Range Rover

STC3192 - O-Ring – Air Conditioning

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Genuine Part
Genuine: Original manufacturer part. This product is the original part designed and produced by the vehicle manufacturer.
O-Ring for the air conditioning refrigerant circuit, used at the pipe and hose unions through the system including the condenser and evaporator connections and the hose runs between them.

The ring seals the joint between the machined union faces against refrigerant and compressor oil pressure. It is a service item: renew it whenever a connection is broken and lubricate it with the correct refrigerant oil before assembly.
Vehicle Model Land Rover Defender up to 2016
Land Rover Discovery 1 1989-1998 (L318)
Range Rover Classic up to 1994
Fitment Notes DEFENDER 1987 - 2006 Condenser & Principal Components 4 Cylinder,With Air Conditioning (V)WA159806
DEFENDER 1987 - 2006 Evaporator Assembly 4.0L V8 EFI Petrol,50 LE,With Air Conditioning
DEFENDER 1987 - 2006 Fluid System With Air Conditioning,With Diesel Engines,With Petrol Engines (V)WA159806
DEFENDER 1987 - 2006 Hose Layout 4.0L V8 EFI Petrol,50 LE,With Air Conditioning
DISCOVERY 1 1989 - 1998 (From FA393361 to WA799999) CLASSIC Condenser & Principal Components With Air Conditioning
DISCOVERY 1 1989 - 1998 (From FA393361 to WA799999) CLASSIC Hose Layout RHD,With Air Conditioning
RANGE ROVER CLASSIC 1992 - 1994 (From JA610294) CLASSIC Hose Layout LHD,With Air Conditioning,With Petrol Engines
RANGE ROVER CLASSIC 1992 - 1994 (From JA610294) CLASSIC Hose Layout LHD,TDi,With Air Conditioning
Alternative Codes
STC3192

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Frequently asked questions

What is the STC3192 O-ring used for?
The STC3192 O-ring seals the pipe and hose unions through the air conditioning system, including the condenser and evaporator connections, against refrigerant and compressor oil pressure.
Where in the air conditioning system is it used?
It's used at the unions across the refrigerant circuit, from the condenser and evaporator connections to the hose runs between them, sealing each joint between the machined union faces.
Can the O-ring be reused?
No. It's a service item, so renew it whenever a connection is broken and lubricate it with the correct refrigerant oil before assembly.
Which vehicles does the STC3192 fit?
It fits the Land Rover Defender (1987-2006), Discovery 1 (1989-1998) and Range Rover Classic (1992-1994) with air conditioning. Use your VIN to confirm the specific application.