Cooling & Heating

Cooling & Heating

Welcome to JGS4x4, your trusted partner for high-quality Land Rover and 4x4 vehicle parts and accessories, specializing in the Discovery 1's cooling and heating systems. Our extensive selection of durable, OEM-quality replacements and high-performance aftermarket upgrades is designed to enhance your vehicle's reliability, safety, and off-road capability. Each part we offer is meticulously crafted for compatibility with Discovery 1 models, ensuring a seamless fit and optimal functionality. Whether you’re looking to improve your vehicle's heating efficiency during chilly off-road adventures or boost cooling performance under extreme conditions, our parts are engineered to withstand the rigors of off-road driving while maintaining peak performance.

From robust radiators and thermostats to reliable heaters and hoses, every component is built to enhance your driving experience and extend the lifespan of your vehicle. Our offerings not only promise superior durability but also help in maintaining the integrity of your 4x4, providing peace of mind on the toughest terrains. With a focus on quality and performance, JGS4x4 ensures that each product meets the highest standards, making it easier for enthusiasts to find the perfect fit for their vehicle maintenance needs. Upgrade your Discovery 1 with our expertly sourced parts to ensure it can tackle any adventure you throw its way.

Discover the difference that quality automotive parts can make in your vehicle's performance, reliability, and safety. Explore our selection today and equip your Land Rover with the best in cooling and heating solutions, tailored specifically for the needs of dedicated 4x4 owners. Trust JGS4x4 for parts that not only meet but exceed expectations, ensuring your vehicle remains in peak condition for all your off-road escapades..

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  • Discovery 1 Front Brake Hose from JGS4x4

    Front Brake Hose for Discovery 1 Corteco | ANR1765G

    Corteco

    £19.89 Inc. VAT
    £16.57 Ex. VAT
    This Front Brake Hose is designed for Discovery 1 models from 1989 to 1998. It connects the front pipe to the caliper on either the left or right side, ensuring reliable hydraulic brake performance. Made from durable materials, this flexible rubber hose...
    ANR1765G
    £19.89 Inc. VAT
    £16.57 Ex. VAT
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    £19.89 Inc. VAT
    £16.57 Ex. VAT
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  • Defender/Discovery 1 Heater Hose To Inlet Manifold from JGS4x4

    Coolant Hose from Heater to Inlet Manifold for Defender, Discovery 1, Range Rover Classic 3.5 Twin Carb | ERC2320

    Direct Replacement

    £2.19 Inc. VAT
    £1.82 Ex. VAT
    This coolant hose connects the heater to the inlet manifold, designed specifically for 3.5 Twin Carb engines found in Defender, Discovery 1, and Range Rover Classic models. It ensures efficient coolant flow within the cooling system, helping to maintain...
    ERC2320
    £2.19 Inc. VAT
    £1.82 Ex. VAT
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    £2.19 Inc. VAT
    £1.82 Ex. VAT
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  • Defender/Discovery 1 Engine Cooling Radiator from JGS4x4

    Aluminium Radiator Only for Defender, Discovery 1, 300TDI Range Rover Classic Nissens | BTP2275G

    Nissens

    £161.99 Inc. VAT
    £134.99 Ex. VAT
    This aluminium radiator is designed for vehicles equipped with the 300TDI engine, fitting models such as Defender, Discovery 1, and Range Rover Classic. It ensures efficient engine cooling to prevent overheating, which is critical for maintaining engine...
    BTP2275G
    £161.99 Inc. VAT
    £134.99 Ex. VAT
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    £161.99 Inc. VAT
    £134.99 Ex. VAT
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  • Defender/Discovery 1 EGR Hose from JGS4x4

    EGR Hose for Defender 300TDI | ERR3580

    Direct Replacement

    £3.69 Inc. VAT
    £3.07 Ex. VAT
    This EGR Hose is designed for the Defender with the 300TDI engine. It plays a crucial role in the exhaust gas recirculation system, which helps reduce harmful Nitrous Oxide NOx emissions by recycling exhaust gases back into the air intake. This process...
    ERR3580
    £3.69 Inc. VAT
    £3.07 Ex. VAT
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    £3.69 Inc. VAT
    £3.07 Ex. VAT
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  • Defender/Discovery 1 Cylinder Head Gasket - ERR2428 from JGS4x4

    Water Pump Gasket for V8 Twin Carb for Defender, Discovery 1, and Range Rover Classic | ERR2428

    Direct Replacement

    £0.99 Inc. VAT
    £0.82 Ex. VAT
    This water pump gasket is designed for V8 Twin Carb engines used in Defender, Discovery 1, and Range Rover Classic models. It ensures a reliable seal for the water pump, preventing leaks and maintaining optimal engine cooling performance. Suitable for...
    ERR2428
    £0.99 Inc. VAT
    £0.82 Ex. VAT
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    £0.99 Inc. VAT
    £0.82 Ex. VAT
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  • Defender/Discovery 1 Coolant Thermostat - 88 Degrees from JGS4x4

    Thermostat for V8 for Defender 88 Degrees| ETC4765

    Direct Replacement

    £5.39 Inc. VAT
    £4.49 Ex. VAT
    This 88-degree thermostat is designed for V8 engines in Defender models from 1983 to 2006, Discovery 1 from 1989 to 1998, Range Rover Classic from 1971 to 1994, and Series 3 from 1971 to 1985. It regulates the flow of coolant from the engine to the...
    ETC4765
    £5.39 Inc. VAT
    £4.49 Ex. VAT
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  • Defender/Discovery 1 Bypass To Inlet Manifold Hose from JGS4x4

    Coolant Hose Bypass to Inlet Manifold For Defender, Discovery 1, Range Rover Classic 3.5 Twin Carb | ERC2319

    Direct Replacement

    £2.19 Inc. VAT
    £1.82 Ex. VAT
    This coolant hose bypass to inlet manifold is designed for vehicles equipped with the 3.5 Twin Carb engine, including Defender, Discovery 1, and Range Rover Classic models. It serves as a flexible pipe allowing coolant to circulate efficiently through...
    ERC2319
    £2.19 Inc. VAT
    £1.82 Ex. VAT
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    £2.19 Inc. VAT
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  • ERC8598 - Hose | Genuine from JGS4x4

    Hose to Manifold on Plenum Chamber for Discovery 1 Petrol Range Rover Genuine Land Rover | ERC8598LR

    Genuine Land Rover

    £18.29 Inc. VAT
    £15.24 Ex. VAT
    This genuine hose to manifold on plenum chamber is designed for use with petrol engines in Discovery 1 and Range Rover models. It ensures reliable performance and durability for your vehicle's cooling or air intake system. Manufactured to meet high...
    ERC8598LR
    £18.29 Inc. VAT
    £15.24 Ex. VAT
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    £18.29 Inc. VAT
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  • LLH500100 - Breather Hose | OEM from JGS4x4

    Plenum Hose to Rocker for EFI 4.0, for Discovery 1, Range Rover P38 OEM| LLH500100

    OEM Parts

    £1.89 Inc. VAT
    £1.57 Ex. VAT
    This plenum hose to rocker is designed for EFI 4.0 engines and fits Discovery 1 and Range Rover P38 models. It is a flexible rubber hose that plays a crucial role in the engine's breather system. Over time, this hose may degrade or split, leading to...
    LLH500100
    £1.89 Inc. VAT
    £1.57 Ex. VAT
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    £1.89 Inc. VAT
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  • Range Rover Classic Tdi Thermostat & Radiator Red Aluminium Bleed Screw Plug from JGS4x4 Range Rover Classic Tdi Thermostat & Radiator Red Aluminium Bleed Screw Plug from JGS4x4

    Thermostat & Radiator Red Aluminium Bleed Screw Plug for Defender 300TDI | ERR4686RED-2

    Britpart

    £5.39 Inc. VAT
    £4.49 Ex. VAT
    This Classic TDI Thermostat & Radiator Red Aluminium Bleed Screw Plug is designed for Defender and Discovery 1 models equipped with the 300TDI engine. Crafted from red anodised aluminium, it offers superior durability compared to the original black...
    ERR4686RED-2
    £5.39 Inc. VAT
    £4.49 Ex. VAT
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  • Range Rover Classic Tdi Thermostat & Radiator Blue Aluminium Bleed Screw Plug from JGS4x4 Range Rover Classic Tdi Thermostat & Radiator Blue Aluminium Bleed Screw Plug from JGS4x4

    Classic TDI Thermostat & Radiator Blue Aluminium Bleed Screw Plug for Defender 300TDI | ERR4686BLUE-2

    Britpart

    £5.39 Inc. VAT
    £4.49 Ex. VAT
    This blue anodised aluminium bleed screw plug is designed for use with the thermostat housing and radiator bleed screw hole on Defender models equipped with the 300TDI engine. It offers enhanced durability compared to the original black plastic plug and...
    ERR4686BLUE-2
    £5.39 Inc. VAT
    £4.49 Ex. VAT
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  • PROFLOW Water Pump OE Quality for Discovery 1 4.0 V8, automotive water pump with metal housing and integrated impeller for engine cooling.

    Water Pump OE Quality for Discovery 1 4.0 V8

    PROFLOW

    £55.49 Inc. VAT
    £46.24 Ex. VAT
    Discovery 1 4.0 V8 Water Pump OE Quality, includes gasket. Equivalent to Land Rover part number: STC4378 SUITABLE FOR THE FOLLOWING LAND ROVER MODELS:Defender, 4.0 V8, 1993-2016Discovery 1, 4.0 V8, 1994-1998Discovery 2, 4.0 V8, 1998-2002Range Rover P38,...
    STC4378G-1
    £55.49 Inc. VAT
    £46.24 Ex. VAT
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    £55.49 Inc. VAT
    £46.24 Ex. 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.