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BMW Coolant Reservoirs

Low coolant levels and an overheating engine may be telltale signs that your coolant reservoir is defective. Fortunately, it’s easy to find a BMW coolant reservoir replacement here at CarParts.com. We have a wide selection of ready-to-ship aftermarket coolant reservoirs for various BMW models like the 328i, 330i, and X3. Order anytime, and we’ll deliver the part you need in a matter of days. Check out our BMW coolant reservoirs below!
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Coolant Reservoir
Replacement
Coolant Reservoir
Part Number: REPB161305
Vehicle Info Required to Guarantee Fit
$37.49
Product Details
Notes : Without CapProduct Fit : Direct FitQuantity Sold : Sold individuallyReplaces OE Number : 17117573781Replaces Partslink Number : BM3014102Warranty : 1-year Replacement unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Phthalates, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Interchange Part Number : 17137787039, 17117573781, BM3014102Returns Policy : 30-Day Return Policy
Coolant Reservoir
Replacement
Coolant Reservoir
Part Number: REPB161315
Vehicle Info Required to Guarantee Fit
$45.99
Product Details
Notes : Without CapProduct Fit : Direct FitQuantity Sold : Sold individuallyReplaces OE Number : 17137640514Replaces Partslink Number : BM3014110Warranty : 1-year Replacement unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Phthalates, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Interchange Part Number : 17137640514, BM3014110Returns Policy : 30-Day Return Policy
Coolant Reservoir, Without Level Sensor
Replacement
Coolant Reservoir, Without Level Sensor
Part Number: REPB161314
Vehicle Info Required to Guarantee Fit
$40.99
Product Details
Notes : With cap; Without level sensorProduct Fit : Direct FitQuantity Sold : Sold individuallyReplaces OE Number : 17137542986Replaces Partslink Number : BM3014107Warranty : 1-year Replacement unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Phthalates, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Interchange Part Number : 17137542986, 603351, 17137542986, BM3014107Returns Policy : 30-Day Return Policy
Coolant Reservoir, without Cap, with Level Sensor, Base Model
Replacement
Coolant Reservoir, without Cap, with Level Sensor, Base Model
Part Number: REPB161312
Vehicle Info Required to Guarantee Fit
$25.49
Product Details
Notes : Without cap; With level sensorProduct Fit : Direct FitQuantity Sold : Sold individuallyReplaces OE Number : 17137543003Replaces Partslink Number : BM3014105Warranty : 1-year Replacement unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Phthalates, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Interchange Part Number : 17137543003, BM3014105Returns Policy : 30-Day Return Policy
Coolant Reservoir
Replacement
Coolant Reservoir
Part Number: REPB161324
Vehicle Info Required to Guarantee Fit
$45.77
Product Details
Notes : Without cap; With level sensorProduct Fit : Direct FitQuantity Sold : Sold individuallyReplaces OE Number : 17137647290Warranty : 1-year Replacement unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Phthalates, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Interchange Part Number : 17137647290Returns Policy : 30-Day Return Policy
Coolant Reservoir, 6 Cyl., 2.5/2.8/3.0L Engines
Replacement
Coolant Reservoir, 6 Cyl., 2.5/2.8/3.0L Engines
Part Number: REPB161301
Vehicle Info Required to Guarantee Fit
$31.49
Product Details
Notes : With CapProduct Fit : Direct FitQuantity Sold : Sold individuallyReplaces OE Number : 17111436381Replaces Partslink Number : BM3014104Warranty : 1-year Replacement unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Phthalates, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Interchange Part Number : 603536, 17111436381, BM3014104Returns Policy : 30-Day Return Policy
Coolant Reservoir, 4 Cyl., 2.0L Engine
Replacement
Coolant Reservoir, 4 Cyl., 2.0L Engine
Part Number: RB16130001
Vehicle Info Required to Guarantee Fit
$37.04
Product Details
Product Fit : Direct FitQuantity Sold : Sold individuallyReplaces OE Number : 17137642158Replaces Partslink Number : BM3014112Warranty : 1-year Replacement unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Phthalates, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Interchange Part Number : 17137642158, BM3014112Returns Policy : 30-Day Return Policy
Coolant Reservoir
Replacement
Coolant Reservoir
Part Number: REPL161308
Vehicle Info Required to Guarantee Fit
$37.99
Product Details
Notes : Without CapProduct Fit : Direct FitQuantity Sold : Sold individuallyReplaces OE Number : PCF000033Warranty : 1-year Replacement unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Phthalates, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Interchange Part Number : 17137501959, PCF000033Returns Policy : 30-Day Return Policy
Coolant Reservoir
Replacement
Coolant Reservoir
Part Number: REPB161302
Vehicle Info Required to Guarantee Fit
$37.83
Product Details
Notes : With CapProduct Fit : Direct FitQuantity Sold : Sold individuallyReplaces OE Number : 17111741167Replaces Partslink Number : BM3014101Warranty : 1-year Replacement unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Phthalates, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Interchange Part Number : 603537, 17111741167, BM3014101Returns Policy : 30-Day Return Policy
Coolant Reservoir
Replacement
Coolant Reservoir
Part Number: REPB161309
Vehicle Info Required to Guarantee Fit
$26.04
Product Details
Notes : Without CapProduct Fit : Direct FitQuantity Sold : Sold individuallyReplaces OE Number : 17111723520Replaces Partslink Number : BM3014103Warranty : 1-year Replacement unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Phthalates, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Interchange Part Number : 17111723520, 17111723520, BM3014103Returns Policy : 30-Day Return Policy
Coolant Reservoir
Replacement
Coolant Reservoir
Part Number: REPB161308
Vehicle Info Required to Guarantee Fit
$32.49
Product Details
Notes : Without CapProduct Fit : Direct FitQuantity Sold : Sold individuallyReplaces OE Number : 17107514964Replaces Partslink Number : BM3014109Warranty : 1-year Replacement unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Phthalates, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Interchange Part Number : 17107514964, BM3014109Returns Policy : 30-Day Return Policy
Coolant Reservoir, 6 Cyl., 2.5/2.7L Engines
Replacement
Coolant Reservoir, 6 Cyl., 2.5/2.7L Engines
Part Number: REPB161311
Vehicle Info Required to Guarantee Fit
$19.01
Product Details
Notes : Without CapProduct Fit : Direct FitQuantity Sold : Sold individuallyReplaces OE Number : 17111707540Warranty : 1-year Replacement unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Phthalates, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Deals : ClearanceInterchange Part Number : 17111707540Returns Policy : 30-Day Return Policy
6-Piece Kit Radiator, 2.5L/2.8L/3.0L Engines, Aluminum Core, Plastic Tank, includes Coolant Reservoir, Radiator Cap, Radiator Hoses, and Thermostat
Replacement
6-Piece Kit Radiator, 2.5L/2.8L/3.0L Engines, Aluminum Core, Plastic Tank, includes Coolant Reservoir, Radiator Cap, Radiator Hoses, and Thermostat
Part Number: KIT-052623-34
Vehicle Info Required to Guarantee Fit
$203.99
Product Details
Notes : Radiator Hose - With Quick Connect Fitting; Thermostat - Includes housing; Plastic housing; Blade type; 2-prong male terminal; Coolant Reservoir - Without cap; Radiator Cap - Attaches to Expansion/Overflow Tank; Threaded filler neckCore Dimensions : 22.81 x 17.63 x 1.25 in. Core SizeComponents : (1) Coolant Reservoir, (1) Radiator, (1) Radiator Cap, (2) Radiator Hose, and (1) ThermostatAutomatic Transmission Cooler : Without Transmission CoolerEngine Oil Cooler : Without Engine Oil CoolerInlet Size : 1.5 in. InletOutlet Location : Bottom right outletRecommended Use : OE ReplacementNumberof Rows : 1-Row CoreTank Material : Plastic TankCore Material : Aluminum CoreColor Finish : Factory FinishOutlet Size : 1.5 in. OutletInlet Location : Top left inletReplaces DPI Number : DPI# 2636Product Fit : Direct FitQuantity Sold : KitReplaces OE Number : 17119071519, 17117573781, 17117639022, 17111468076, 17127510952, 11531436408Replaces Partslink Number : BM3010107, BM3014102Warranty : 1-year Replacement unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead and lead compounds, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : 4th of July SaleReturns Policy : 30-Day Return PolicyCore Height : 22 3/4 in.Core Width : 17 5/8 in.Core Thickness : 1 1/4 in.Interchange Part Number : 3709, CU2636, 17119071519, BM3010107, 17137787039, 17117573781, BM3014102, 10247, 31332, 17117639022, 17111468076, 23404, 17127510952, 23405, 11531436408, 902813
3-Piece Kit Radiator, 2.5L/3.0L Engines, Aluminum Core, Plastic Tank, Automatic Transmission, includes Coolant Reservoir and Thermostat
Replacement
3-Piece Kit Radiator, 2.5L/3.0L Engines, Aluminum Core, Plastic Tank, Automatic Transmission, includes Coolant Reservoir and Thermostat
Part Number: KIT-052623-41
Vehicle Info Required to Guarantee Fit
$140.49
Product Details
Notes : Thermostat - Includes housing; Plastic housing; Blade type; 2-prong male terminal; Coolant Reservoir - Without capCore Dimensions : 22.88 x 19.5 x 1.5 in. Core SizeComponents : (1) Coolant Reservoir, (1) Radiator, and (1) ThermostatAutomatic Transmission Cooler : Without Transmission CoolerEngine Oil Cooler : Without Engine Oil CoolerInlet Size : 1.31 in. InletRecommended Use : OE ReplacementNumberof Rows : 1-Row CoreTank Material : Plastic TankCore Material : Aluminum CoreColor Finish : Factory FinishOutlet Size : 1.31 in. OutletReplaces DPI Number : DPI# 2771Product Fit : Direct FitQuantity Sold : KitReplaces OE Number : 17113400013, 17117573781Replaces Partslink Number : BM3010143, BM3014102Warranty : 1-year Replacement unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead and lead compounds, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : 4th of July SaleReturns Policy : 30-Day Return PolicyCore Height : 22 7/8 in.Core Width : 19 1/2 in.Core Thickness : 1 1/2 in.Interchange Part Number : 17113400013, BM3010143, 17137787039, 17117573781, BM3014102, 902813
4-Piece Kit Water Pump, With Gasket, includes Coolant Reservoir, and Radiator Hoses
DriveMotive
4-Piece Kit Water Pump, With Gasket, includes Coolant Reservoir, and Radiator Hoses
Part Number: KIT-061517-01
Vehicle Info Required to Guarantee Fit
$107.49
Product Details
Components : (1) Coolant Reservoir, (2) Radiator Hose, and (1) Water PumpCondition : NewQuantity Sold : KitRecommended Use : OE ReplacementPulley Included : Without PulleyGasket Included : With GasketProduct Fit : Direct FitReplaces OE Number : 1882, 18261, 20669, 41057, 43536, 96101, 134011, 181066, 252284, 506107, 512056, 559261, 571387, 571587, 1152090, 1152160, 1153090, 1312130, 01489032, 5583320, 54152090, 11511143828, 11511150040, 11511172536, 11511174243, 11511433712, 11511433828, 11511504040, 11511722536, 11511730414, 11511740241, 11511744243, 11511750884, 11511752799, 11511752910, 11517503884, 11517504040, 11517527799, 11517527910, 11517509985, 1WP9261, AW9261, AWP882, BM2090, CP9261, DP269, ELGWP9261, NP1719, NP5066, P2370Interchange Part Number : AW9261, 1882, 18261, 20669, 41057, 43536, 96101, 134011, 181066, 252284, 506107, 512056, 559261, 571387, 571587, 1152090, 1152160, 1153090, 1312130, 01489032, 5583320, 54152090, 11511143828, 11511150040, 11511172536, 11511174243, 11511433712, 11511433828, 11511504040, 11511722536, 11511730414, 11511740241, 11511744243, 11511750884, 11511752799, 11511752910, 11517503884, 11517504040, 11517527799, 11517527910, 11517509985, 1WP9261, AWP882, BM2090, CP9261, DP269, ELGWP9261, NP1719, NP5066, P2370Warranty : 1-year DriveMotive unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Returns Policy : 30-Day Return PolicyReplaces Partslink Number : BM3014102
Page 1 of 14 | Showing 1 - 15 of 199 results

Top Rated Products

Replacement Coolant Reservoir, Without Level Sensor
$40.99( Review)
Great product and great price
Clarence R.
VERIFIED PURCHASER
Replacement Coolant Reservoir
$37.49( Review)
Good quality direct fit.
Rogelio E.
VERIFIED PURCHASER

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Product Questions & Answers

Replacement 3-Piece Kit Radiator, 2.5L/3.0L Engines, Aluminum Core, Plastic Tank, Automatic Transmission, includes Coolant Reservoir and Thermostat
$140.49
Q:will this fit a 2004 x3 with a manual transmission?
Izzie
A:BEST ANSWERHi Izzie, I'm glad to assist you. No, this is only compatible with the models with automatic transmission. I hope this helps, and we thank you for inquiring. Show less
Arnel E.
 
2 Questions, 1 AnswerView all Q&As >
DriveMotive 4-Piece Kit Water Pump, With Gasket, includes Coolant Reservoir, and Radiator Hoses
$107.49
Q:Is the impeller plastic or metal?
Tyrone
A:BEST ANSWERHi Tyson, thank you for reaching out. The water pump has a metal impeller. You can use the link below to order the kit while it is on a 71% sale. Have a good one! https://www.carparts.com/water-pump/drivemotive/kit-061517-01?can=cpab2020_csqa_20221006 Show less
Andrew B.
 
3 Questions, 1 AnswerView all Q&As >
Replacement 6-Piece Kit Radiator, 2.5L/2.8L/3.0L Engines, Aluminum Core, Plastic Tank, includes Coolant Reservoir, Radiator Cap, Radiator Hoses, and Thermostat
$203.99
Q:oil cooler thermostat? 2003 325i
JOHN G.
A:BEST ANSWERHi John, thanks for initiating contact. We do have the automatic transmission oil cooler thermostat compatible with the 2003 BMW 325i Base 6 Cyl 2.5L. Click the link below to choose among the options we have available. Place your order for the correct parts while supplies last. I hope this helps and enjoy shopping! https://www.carparts.com/search?q=automatic_transmission_oil_cooler_thermostat&vehicle[cylinders]=6&vehicle[liter]=2%2E5&vehicle[submodel]=Base&vehicle[model]=325i&vehicle[make]=BMW&vehicle[year]=2003&can=CPGG4850_CSQA_20240613 Show less
Grace G.
 
4 Questions, 1 AnswerView all Q&As >

Helpful Automotive Resources

Where Is the Coolant Reservoir Located?
Where Is the Coolant Reservoir Located?The coolant reservoir is a storage tank that holds excess engine coolant. The reservoir also regulates the coolant fluid’s movement into and out of the engine cooling system through its connection to the radiator’s pressure relief valve. .kadence-column_d5d35e-cb > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_d5d35e-cb > .kt-inside-inner-col,.kadence-column_d5d35e-cb > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column_d5d35e-cb > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_d5d35e-cb > .kt-inside-inner-col{flex-direction:column;}.kadence-column_d5d35e-cb > .kt-inside-inner-col
Why Is My Coolant Boiling?
Why Is My Coolant Boiling?Boiling coolant can indicate problems in your engine, so don’t disregard it. Here are some of the common reasons why coolant reaches its boiling point: Faulty Radiator Cap When the cap is damaged or loose, air can enter the system and disrupt its operating temperature, which could cause the coolant to boil.
Common Problems After Engine Replacement Plus Prevention Tips
Common Problems After Engine Replacement Plus Prevention TipsPro Tips are nuggets of information direct from ASE-certified automobile technicians working with CarParts.com, which may include unique, personal insights based on their years of experience working in the automotive industry. These can help you make more informed decisions about your car.