Cooling & Heating

Cooling & Heating

Discovery 1 Cooling & Heating

JGS4x4 is your trusted partner for high-quality parts, specializing in the Discovery 1's cooling and heating systems. Our extensive range includes durable OEM-quality replacements and high-performance aftermarket upgrades like radiators, thermostats, heaters, and hoses. These components are engineered for seamless compatibility and optimal functionality, ensuring your vehicle maintains peak performance under extreme conditions. By choosing JGS4x4, you invest in parts that enhance reliability, safety, and comfort, ensuring your Discovery 1 can tackle any adventure and maintain its lifespan.

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  • Direct Replacement Thermostat for Defender & Discovery 1 300TDi, automotive thermostat with metal housing and spring mechanism for engine cooling system.

    Thermostat for Defender & Discovery 1 300TDi

    Direct Replacement

    £5.19 Inc. VAT
    £4.32 Ex. VAT
    A replacement standard 88c engine coolant thermostat. Comes complete with sealing rubber gasket. A quality replacement part, equivalent to Land Rover part number: ERR3291Suitable for the following models: Land Rover: Defender, 300TDi, 1994-1998 Land...
    ERR3291
    £5.19 Inc. VAT
    £4.32 Ex. VAT
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    £5.19 Inc. VAT
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  • Quinton Hazell XS Water Pump OE Quality for Discovery 1 300TDi, automotive water pump with gasket, packaged in orange box.

    XS Water Pump OE Quality for Discovery 1 300TDi

    Quinton Hazell

    £26.29 Inc. VAT
    £21.91 Ex. VAT
    The XS range of water pumps are all OE quality pumps designed and manufactured by Pro-Flow here in the UK with ISO TS16949 approval. Pro Flow pumps are manufactured from the same materials and on the same production lines as OE products, which are...
    PEB500090G
    £26.29 Inc. VAT
    £21.91 Ex. VAT
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  • Direct Replacement Water Pump Metal P Gasket for Defender & Discovery 1 300TDi, black metal gasket for water pump repair.

    Water Pump Metal P Gasket for Defender & Discovery 1 300TDi

    Direct Replacement

    £1.59 Inc. VAT
    £1.32 Ex. VAT
    This is the gasket that fits behind the water pump on All Land Rover 300TDi engines and is commonly known as the 'P' gasket. This is the modified metal type gasket that replaces the original fibre type gasket. It is common for this gasket to fail causing...
    PET100790G
    £1.59 Inc. VAT
    £1.32 Ex. VAT
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    £1.59 Inc. VAT
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  • Product: Direct Replacement Thermostat for Defender & Discovery 1 200TDi, image showing the thermostat with a gasket on a white background.

    Thermostat for Defender & Discovery 1 200TDi

    Direct Replacement

    £6.39 Inc. VAT
    £5.32 Ex. VAT
    A brand new replacement standard engine coolant thermostat and gasket. A quality replacement part, equivalent to Land Rover part number: ERR2803Suitable for the following models: Land Rover: Defender, 200TDi, 1989-1994 Land Rover: Discovery 1, 200TDi,...
    ERR2803K
    £6.39 Inc. VAT
    £5.32 Ex. VAT
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  • Direct Replacement Water Temperature Sensor - Green Top for Defender/Discovery 1 300 Tdi, close-up of the brass sensor with a green top and threaded section for engine coolant temperature detection.

    Water Temperature Sensor - Green Top for Defender/Discovery 1 300 Tdi

    Direct Replacement

    £4.79 Inc. VAT
    £3.99 Ex. VAT
    Defender/Discovery 1 water temperature sensor - green top. SUITABLE FOR THE FOLLOWING LAND ROVER MODELS:Defender, 300 Tdi, 1994-1998Discovery, 300 TDi, 3.9V8, 1994-1998Range Rover Classic, 300 TDi, 3.9V8, 1994-1995Range Rover P38, 4.0, 4.6 V8, 1994-2002...
    AMR1425
    £4.79 Inc. VAT
    £3.99 Ex. VAT
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    £4.79 Inc. VAT
    £3.99 Ex. VAT
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  • Direct Replacement Water Pump & P Gasket for Defender & Discovery 1 300TDi, image of water pump gasket and gasket set.

    Water Pump & P Gasket for Defender & Discovery 1 300TDi

    Direct Replacement

    £1.89 Inc. VAT
    £1.57 Ex. VAT
    A new replacement water pump gasket AND 'P' gasket that fits behind the water pump and timing cover.Quality replacement parts, equivalent to Land Rover part numbers: ERR3284 & PET100790Suitable for the following models: Land Rover: Defender, 300TDi,...
    ERR3284_PET100790G
    £1.89 Inc. VAT
    £1.57 Ex. VAT
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  • Direct Replacement Radiator And Engine Oil Cooler - BTP1823S for Defender & Discovery 1 200TDi, automotive radiator and oil cooler with metal fins and hoses. Direct Replacement Radiator And Engine Oil Cooler - BTP1823S for Defender & Discovery 1 200TDi, front view of vehicle radiator and oil cooler showing cooling fins and connection ports.

    Radiator And Engine Oil Cooler for Defender & Discovery 1 200TDi

    Direct Replacement

    £121.60 Inc. VAT
    £101.33 Ex. VAT
    A new replacement radiator with integrated engine oil cooler. This is a quality replacement aluminium cored radiator. Aluminium is lighter and also offers better heat transfer so will be more efficient at cooling over the standard radiator. A quality...
    BTP1823S
    £121.60 Inc. VAT
    £101.33 Ex. VAT
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    £121.60 Inc. VAT
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  • Direct Replacement Viscous Fan Coupling Unit for Defender Discovery 1 300 TDi, metallic fan clutch with fins and central mounting hub.

    Viscous Fan Coupling Unit for Defender Discovery 1 300 TDi

    Direct Replacement

    £38.79 Inc. VAT
    £32.32 Ex. VAT
    Quality replacement radiator fan viscous coupling unit. A quality replacement part, equivalent to Land Rover part number: ERR2266Suitable for the following models: Land Rover: Discovery 1, 300 TDi, 1994-1998 Land Rover: Defender, 300 TDi, 1994-1998
    ERR2266
    £38.79 Inc. VAT
    £32.32 Ex. VAT
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  • Thermostat & Radiator Brass Bleed Screw Plug for Discovery 1 Tdi from JGS4x4

    Thermostat & Radiator Brass Bleed Screw Plug for Discovery Tdi

    Direct Replacement

    £4.40 Inc. VAT
    £3.67 Ex. VAT
    A replacement brass bleed plug that fits the thermostat housing and radiator bleed screw hole, much tougher than the original black plastic plug. Comes complete with new rubber O-ring. It can also be used to replace the plastic filler level plugs on the...
    ERR4686B-1
    £4.40 Inc. VAT
    £3.67 Ex. VAT
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  • Airtex Water Pump OEM for Discovery 1 200TDi, metal water pump with pulley and mounting flange for engine cooling system.

    Water Pump OEM for Discovery 1 200TDi

    Airtex

    £51.89 Inc. VAT
    £43.24 Ex. VAT
    Discovery 1/Range Rover Classic 200Tdi OEM engine coolant water pump. SUITABLE FOR THE FOLLOWING LAND ROVER MODELS:Discovery 1, 200Tdi, 1989-1994Range Rover Classic, 200Tdi, 1971-1994 EQUIVALENT TO LAND ROVER PART NUMBER(S): RTC6395...
    RTC6395G
    £51.89 Inc. VAT
    £43.24 Ex. VAT
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    £51.89 Inc. VAT
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  • Direct Replacement Radiator Top Hose for Discovery 1 300TDi, black rubber radiator hose with a curved shape.

    Radiator Top Hose for Discovery 1 300TDi

    Direct Replacement

    £2.49 Inc. VAT
    £2.07 Ex. VAT
    A new replacement rubber top radiator hose. A quality replacement part, equivalent to Land Rover part number: ESR2491Suitable for the following models:Land Rover: Discovery 1, 2.5 300TDi, 1994-1998. Land Rover: Range Rover Classic, 2.5 300TDi, 1994-1995
    ESR2491
    £2.49 Inc. VAT
    £2.07 Ex. VAT
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    £2.49 Inc. VAT
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  • Direct Replacement Coolant Expansion Header Tank for Discovery 1 Tdi, black plastic automotive coolant reservoir with an open threaded inlet and two outlet nozzles for vehicle cooling system.

    Coolant Expansion Header Tank for Discovery Tdi

    Direct Replacement

    £23.19 Inc. VAT
    £19.32 Ex. VAT
    A replacement radiator coolant expansion or header tank. These are prone to splitting along the plastic welded seams due to the constant heating and cooling. EQUIVALENT TO LAND ROVER PART NUMBER(S): PCF101590, ESR63 SUITABLE FOR THE FOLLOWING LAND ROVER...
    PCF101590-1
    £23.19 Inc. VAT
    £19.32 Ex. VAT
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    £23.19 Inc. VAT
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JGS4x4 is an independent supplier of parts and accessories. We are not affiliated with or endorsed by Jaguar Land Rover Limited. All references to vehicle models are used for identification and compatibility purposes only.