HomeBelts and Cooling > Radiators, Coolers and Related ComponentsDorman 603-332 Engine Coolant Reservoir - Front
Part #: 603-332

Dorman 603-332 Engine Coolant Reservoir - Front

Front
⚙️ 46 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$68.40Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: BMW and Mini, 118i, i3, i3s, i8, 318i, Cooper Countryman, Cooper Paceman, and Cooper
🔄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 603-332

The Dorman 603-332 engine coolant reservoir is designed for reliable coolant storage and management in select BMW and Mini vehicles. This white plastic reservoir includes a flip-top cap and necessary tubing, providing a direct replacement for your vehicle's cooling system component.

  • Constructed from durable white plastic material
  • Includes one coolant reservoir, one flip-top cap, and tubing
  • Equipped with three mounting holes for secure installation
  • Non-pressurized design suitable for specific BMW and Mini models
  • Cap included with flip-top style for easy access

Detailed Product Description

The Dorman 603-332 engine coolant reservoir is engineered to meet the specifications of various BMW and Mini models, including the BMW 118i, 318i, and the Mini Cooper series such as Cooper, Cooper Countryman, Cooper Paceman, i3, i3s, and i8. Made from sturdy plastic, this reservoir is designed to withstand typical engine bay conditions while maintaining coolant integrity. The included flip-top cap allows for convenient coolant level checks and refills without the need to remove the entire cap assembly. With three mounting holes, the reservoir can be securely fastened in place, although mounting hardware and brackets are not included.

Compatible Vehicles and Common Applications

This engine coolant reservoir is compatible with the following makes and models:

  • BMW 118i and 318i
  • Mini Cooper, Cooper Countryman, Cooper Paceman
  • Mini i3, i3s, and i8

It is designed to replace worn or damaged coolant reservoirs that may cause issues such as leaks, coolant contamination, or improper coolant level maintenance.

Common Issues Addressed by This Coolant Reservoir

  • Coolant leaks due to cracked or damaged reservoir tanks
  • Inaccurate coolant level readings from faulty caps
  • Overheating caused by insufficient coolant storage
  • Contamination from degraded reservoir materials
  • Loose or unstable reservoir mounting

Installation Notes and Tips

  • Ensure the engine is cool before removing the old reservoir to avoid injury
  • Check that the three mounting holes align properly with your vehicle’s mounting points
  • Use appropriate mounting hardware as it is not included with this part
  • Inspect and replace any worn tubing or clamps during installation
  • Verify the flip-top cap seals correctly to prevent coolant evaporation or leaks

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 603-332 engine coolant reservoir undergoes quality checks to ensure durability and performance in compatible BMW and Mini vehicles. Warranty coverage details can be obtained from the product documentation or the original purchase source.

BrandDorman
Part Number603-332
Cap IncludedYes
Cap TypeFlip Top
ColorWhite
MaterialPlastic
Mounting Brackets IncludedNo
Mounting Hardware IncludedNo
Mounting Hole Quantity3
Package Contents1 Coolant Reservoir; 1 Cap; Tubing
PressurizedNo

This part fits 46 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2021BMWi30.6LL2FrontRecovery Tank
2021BMWi3s0.6LL2FrontRecovery Tank
2020BMWi30.6LL2FrontRecovery Tank
2020BMWi3s0.6LL2FrontRecovery Tank
2020BMWi81.5LL3FrontRecovery Tank
2019BMW118i1.5LL3FrontRecovery Tank
2019BMWi30.6LL2FrontRecovery Tank
2019BMWi3s0.6LL2FrontRecovery Tank
2019BMWi81.5LL3FrontRecovery Tank
2018BMW118i1.5LL3FrontRecovery Tank
2018BMW318i1.5LL3FrontRecovery Tank
2018BMWi30.6LL2FrontRecovery Tank
2018BMWi3s0.6LL2FrontRecovery Tank
2018BMWi81.5LL3FrontRecovery Tank
2017BMWi30.6LL2FrontRecovery Tank
2017BMWi81.5LL3FrontRecovery Tank
2016BMWi30.6LL2FrontRecovery Tank
2016BMWi81.5LL3FrontRecovery Tank
2016MiniCooper1.6LL4FrontR59 Body Code
2016MiniCooper Countryman1.6LL4Front
2016MiniCooper Paceman1.6LL4Front
2015BMWi30.6LL2FrontRecovery Tank
2015BMWi81.5LL3FrontRecovery Tank
2015MiniCooper1.6LL4Front
2015MiniCooper2.0LL4Front
2015MiniCooper1.5LL3Front
2015MiniCooper Countryman1.6LL4Front
2015MiniCooper Paceman1.6LL4Front
2014BMWi30.6LL2FrontRecovery Tank
2014BMWi81.5LL3FrontRecovery Tank
2014MiniCooper1.6LL4Front
2014MiniCooper2.0LL4Front
2014MiniCooper1.5LL3Front
2014MiniCooper Countryman1.6LL4Front
2014MiniCooper Paceman1.6LL4Front
2013MiniCooper1.6LL4Front
2013MiniCooper Countryman1.6LL4Front
2013MiniCooper Paceman1.6LL4Front
2012MiniCooper1.6LL4Front
2012MiniCooper Countryman1.6LL4Front
2011MiniCooper1.6LL4Front
2011MiniCooper Countryman1.6LL4Front
2010MiniCooper1.6LL4Front
2009MiniCooper1.6LL4Front
2008MiniCooper1.6LL4Front
2007MiniCooper1.6LL4Front

* 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:

17132754264EPT014FRT1908CFRT2001C

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