HomeBelts and Cooling > Radiators, Coolers and Related ComponentsDorman 603-759 Engine Coolant Reservoir
Part #: 603-759

Dorman 603-759 Engine Coolant Reservoir

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⚙️ 20 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Land Rover, LR4, Range Rover Sport, and LR3
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Dorman Engine Coolant Reservoir for Land Rover

The Dorman 603-759 engine coolant reservoir is designed specifically for Land Rover LR3, LR4, and Range Rover Sport models. This clear plastic reservoir includes a spring loaded twist cap and a level sensor, ensuring reliable coolant management for your vehicle's engine cooling system.

  • Material: Durable clear plastic construction
  • Dimensions: 12 inches length, 14 inches height
  • Capacity: 1.5 liters
  • Includes spring loaded twist cap with 29 psi maximum pressure rating
  • Equipped with a level sensor for accurate coolant monitoring
  • Mounting holes: 3 (mounting hardware and brackets not included)
  • Pressurized reservoir compatible with Land Rover cooling systems

Detailed Product Description

The Dorman 603-759 engine coolant reservoir is engineered to meet the specifications of Land Rover LR3, LR4, and Range Rover Sport vehicles. Constructed from clear plastic, it allows for easy visual inspection of coolant levels. The irregular shape is designed to fit precisely within the engine bay, utilizing three mounting holes for secure installation. This reservoir is pressurized and comes with a spring loaded twist cap rated for a maximum pressure of 29 psi, helping maintain optimal coolant system pressure. Additionally, the included level sensor provides accurate coolant level readings to prevent overheating and engine damage.

Common Applications and Problem Resolution

  • Replacement for cracked or leaking coolant reservoirs in Land Rover LR3, LR4, and Range Rover Sport
  • Solves coolant overflow and loss issues caused by faulty or damaged reservoirs
  • Addresses inaccurate coolant level readings due to sensor failure
  • Prevents engine overheating by maintaining proper coolant pressure
  • Restores proper coolant containment and system integrity

Installation Notes and Tips

Before installation, ensure the engine is cool to avoid injury from hot coolant. This reservoir includes the cap and level sensor but does not come with mounting hardware or brackets, so retain or source compatible mounting components. Align the reservoir using the three mounting holes and secure it firmly to prevent movement. Verify the level sensor connection is properly seated to ensure accurate coolant monitoring. After installation, refill the coolant system and check for leaks under pressure.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 603-759 engine coolant reservoir undergoes quality inspections to ensure durability and performance in Land Rover LR3, LR4, and Range Rover Sport vehicles. Warranty coverage details can be obtained from the product documentation or Dorman directly, providing confidence in the part's reliability.

BrandDorman
Part Number603-759
Cap IncludedYes
Cap Maximum Pressure Rating29
Cap TypeSpring Loaded Twist
Capacity1.5 L
ColorClear
Height14
Length12
Level Sensor IncludedYes
MaterialPlastic
Mounting Brackets IncludedNo
Mounting Hardware IncludedNo
Mounting Hole Quantity3
Package Contents1 Coolant Reservoir; 1 Cap; 1 Level Sensor
PressurizedYes
ShapeIrregular

This part fits 20 vehicles. Search below:

YearMakeModelPositionNotes
2016Land RoverLR4N/A
2015Land RoverLR4N/A
2014Land RoverLR4N/A
2013Land RoverLR4N/A
2013Land RoverRange Rover SportN/A
2012Land RoverLR4N/A
2012Land RoverRange Rover SportN/A
2011Land RoverLR4N/A
2011Land RoverRange Rover SportN/A
2010Land RoverLR4N/A
2010Land RoverRange Rover SportN/A
2009Land RoverLR3N/A
2009Land RoverRange Rover SportN/A
2008Land RoverLR3N/A
2008Land RoverRange Rover SportN/A
2007Land RoverLR3N/A
2007Land RoverRange Rover SportN/A
2006Land RoverLR3N/A
2006Land RoverRange Rover SportN/A
2005Land RoverLR3N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

EPK0127LR010965LR020367

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.