SJM Oil Cooler For Land Rover LR121390

The SJM Transmission Oil Cooler For Land Rover LR121390 is a replacement cooling component designed for selected Land Rover and Range Rover vehicles equipped with an 8-speed automatic transmission. It helps control transmission fluid temperature by transferring excess heat away from the gearbox oil, supporting smooth gear changes, consistent transmission performance, and long-term drivetrain reliability.

Transmission fluid operates under significant heat and pressure, especially during heavy traffic, long-distance driving, towing, off-road use, or high-temperature conditions. The LR121390 transmission oil cooler helps maintain suitable gearbox oil temperatures and reduces excessive thermal stress on internal transmission components.

A damaged, blocked, or leaking transmission oil cooler can reduce cooling efficiency and may contribute to high transmission temperatures, fluid deterioration, or poor shifting performance. Replacing the faulty cooler with the correct LR121390 gearbox oil cooler helps restore proper transmission fluid cooling and supports reliable operation.

Manufactured from durable materials for efficient heat transfer and dependable performance, the SJM LR121390 oil cooler is a practical replacement for maintaining the transmission cooling system of compatible Land Rover vehicles.

Part Details

Part Name: Land Rover Transmission Oil Cooler
Part Number: LR121390
Part Type: Gearbox Oil Cooler / Transmission Oil Cooler
System: Automatic Transmission Cooling System
Transmission: Selected 8-Speed Automatic Gearboxes
Function: Controls transmission fluid temperature

Vehicle Compatibility

The LR121390 gearbox oil cooler is commonly listed for selected models including:

• Range Rover L405
• Range Rover Sport L494
• Discovery 5 L462
• Land Rover Defender L663

Parts references identify LR121390 as an 8-speed gearbox oil cooler for these applications. Some configurations, including certain 4.4 TDV8 Range Rover L405 and Range Rover Sport L494 models, are specifically excluded, so VIN verification is important.

When Should LR121390 Be Replaced?

Consider inspecting or replacing the transmission oil cooler if you notice:

• Transmission fluid leakage
• Visible damage or corrosion
• High gearbox or transmission temperatures
• Transmission overheating warnings
• Irregular or rough gear shifting
• Deteriorated transmission fluid
• Reduced transmission cooling performance

Replacing a damaged cooler helps maintain proper gearbox fluid temperature and reduces heat-related stress on transmission components.

Fitment Check

Before ordering LR121390, confirm the part number with the existing component or provide your vehicle VIN to verify correct compatibility. Fitment can vary depending on transmission type, engine, model year, and vehicle specification.

Order Land Rover Transmission Oil Cooler LR121390 in the UAE

Looking for the SJM Transmission Oil Cooler For Land Rover LR121390 in the UAE? Contact AlSaqer AlJareh Auto New Spare Parts with your vehicle VIN or part number LR121390 to check compatibility, availability, and pricing for the correct Land Rover gearbox oil cooler.