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Coolant Expansion Tank
Coolant Expansion Tank
5X Entries Into Our F80 M3 Sweepstakes
Meyle - Corporate Logo
T#:54959296
Part#: 314 223 0004
In Stock
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$ 75.99 USD
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$ 75.99 USD
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This Meyle original-quality expansion tank provides a durable, reliable solution to get your cooling system back to performing exactly as it should.
Coolant Expansion Tank
Coolant Expansion Tank
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:55749607
Part#: 17132284600
In Stock
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$ 168.99 USD
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$ 168.99 USD
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This URO Coolant Expansion Tank is a budget-conscious alternative that's designed to handle the rigorous fluid expansion and pressure demands of your M car.
URO Coolant Expansion Tank Cap - G2x G4x G6x G7x
URO Coolant Expansion Tank Cap - G2x G4x G6x G7x
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:56760937
Part#: 17138665638
Ships in 2 Business Days
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$ 25.99 USD
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$ 25.99 USD
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A compromised expansion tank cap can lead to loss of pressure, fluid leaks, and dangerous engine overheating. This URO Coolant Reservoir Cap provides a dependable, cost effective solution to restore factory pressure thresholds on modern G-Chassis BMW models.
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Rein Coolant Expansion Tank - F97 F98 G01 G02 G05 G06 G07 - S58 B46 B58
Rein Coolant Expansion Tank - F97 F98 G01 G02 G05 G06 G07 - S58 B46 B...
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:55965843
Part#: 171386106612
Ships in 4 Business Days
New Item
$ 49.99 USD
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$ 49.99 USD
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Keep your ultimate driving machine cool under pressure with this replacement auxiliary expansion tank from Rein. On modern turbocharged BMWs, the secondary cooling system plays a critical role in managing intake charge air temperatures, making a solid reservoir vital for both spirited street driving and track day reliability.
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Rein Coolant Expansion Tank Kit - F97 F98 G01 G02 G05 G06 G07 - S58 B46 B58
Rein Coolant Expansion Tank Kit - F97 F98 G01 G02 G05 G06 G07 - S58 B...
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:55965839
Part#: 17138610661
Ships in 4 Business Days
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$ 56.99 USD
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$ 56.99 USD
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Keep your ultimate driving machine cool under pressure with this replacement auxiliary expansion tank from Rein. On modern turbocharged BMWs, the secondary cooling system plays a critical role in managing intake charge air temperatures, making a solid reservoir vital for both spirited street driving and track day reliability.
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Rein Coolant Expansion Tank - With Cap
Rein Coolant Expansion Tank - With Cap
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:53891623
Part#: 17135A6A030C
Ships in 4 Business Days
New Item
$ 99.99 USD
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$ 99.99 USD
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Replace your old brittle expansion tank
Coolant Expansion Tank
Coolant Expansion Tank
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:57086700
Part#: 17137642158
Ships in 4 Business Days
New Item
$ 55.99 USD
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$ 55.99 USD
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The factory expansion tank is one of the most common failure points in modern BMW cooling systems, often failing along seam welds or developing micro-cracks around fluid quick-connect fittings. Replacing a degraded reservoir with this direct-fit Rein expansion tank restores pressure containment, ensures accurate coolant expansion volume, and prevents fluid loss before it turns into severe engine damage.
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Coolant Expansion Tank - With Cap
Coolant Expansion Tank - With Cap
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:55497428
Part#: 17137640514
Ships on Nov 6, 2026
New Item
$ 69.99 USD
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$ 69.99 USD
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Coolant Expansion Tank
Coolant Expansion Tank
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:53044121
Part#: 17137601948
In Stock
New Item
Sale - Save 15% $ 72.99

This product was last offered at the strikethrough price on
05-03-2026

$ 62.04 USD
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Sale - Save 15%
$ 72.99

This product was last offered at the strikethrough price on
05-03-2026

$ 62.04 USD
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Coolant Expansion Tank
Coolant Expansion Tank
Febi - Corporate Logo
T#:56544004
Part#: 17135A6A030
Special Order: No Guaranteed ETA
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$ 82.99 USD
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$ 82.99 USD
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This Febi Bilstein coolant expansion tank delivers the strength and exact fitment needed to keep your BMW's cooling system locked down.
Coolant Expansion Tank Cap
Coolant Expansion Tank Cap
Febi - Corporate Logo
T#:56001934
Part#: 46221
Special Order: No Guaranteed ETA
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$ 19.99 USD
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$ 19.99 USD
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This Febi Bilstein coolant expansion tank cap is designed to maintain the exact 1.4 bar pressure required to maximize your coolant's boiling point.
Coolant Expansion Tank
Coolant Expansion Tank
Febi - Corporate Logo
T#:56544005
Part#: 17139846642
Special Order: No Guaranteed ETA
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$ 83.99 USD
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$ 83.99 USD
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Protect your modern BMW from catastrophic thermal overload with the Febi Bilstein coolant expansion tank.
Coolant Expansion Tank
Coolant Expansion Tank
Febi - Corporate Logo
T#:56544003
Part#: 17138677649
Special Order: No Guaranteed ETA
New Item
$ 82.99 USD
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$ 82.99 USD
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Prevent catastrophic track-day or daily-driving overheating with this OEM-spec replacement Coolant Expansion Tank by Febi Bilstein.
Coolant Expansion Tank
Coolant Expansion Tank
Febi - Corporate Logo
T#:56507814
Part#: 17137642160
Special Order: No Guaranteed ETA
New Item
$ 62.99 USD
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$ 62.99 USD
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This Febi Bilstein coolant expansion tank offers OEM quality, engineered to withstand aggressive driving, high thermal loads, and pressurized environments.
E30 Coolant Expansion Tank
E30 Coolant Expansion Tank
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:57507437
Part#: 17111712641
Ships on Jan 6, 2027
New Item
$ 49.99 USD
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$ 49.99 USD
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Coolant Expansion Tank
Coolant Expansion Tank
5X Entries Into Our F80 M3 Sweepstakes
Meyle - Corporate Logo
T#:55569540
Part#: 17137823626
Ships on Sep 30, 2026
New Item
$ 74.99 USD
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$ 74.99 USD
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Rein Engine Coolant Hose - Upper Radiator To Expansion Tank - BMW G3X 5, 6, 7 ser.
Rein Engine Coolant Hose - Upper Radiator To Expansion Tank - BMW G3X...
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:52903294
Part#: 17129844478
Back Ordered
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$ 49.99 USD
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$ 49.99 USD
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Upgrade your cooling system with the Rein Automotive replacement coolant hose, engineered to meet or exceed the rigorous standards of your BMW.
Vargas Expansion Tank Coolant Hose - Blue - BMW B58 F2X F3X
Vargas Expansion Tank Coolant Hose - Blue - BMW B58 F2X F3X
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:51848504
Part#: VTT-B58-CEBLUE
Ships on Sep 29, 2026
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$ 59.99 USD
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$ 59.99 USD
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Elevate your BMW's engine bay while safeguarding your cooling system with the VTT B58 Expansion Tank Hose in Blue.
Coolant Hose - Expansion Tank To Distributor & Cylinder Head
Coolant Hose - Expansion Tank To Distributor & Cylinder Head ...
Febi - Corporate Logo
T#:56471653
Part#: 17125A05950
Special Order: No Guaranteed ETA
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$ 31.99 USD
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$ 31.99 USD
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This Febi Bilstein Coolant Pipe is built to uphold the cooling demands of your vehicle, whether you're commuting daily or pushing performance on open roads.
Rein Engine Coolant Reservoir - BMW G1X, G3X
Rein Engine Coolant Reservoir - BMW G1X, G3X
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:52516268
Part#: EPT0274
Back Ordered
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$ 114.99 USD
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$ 114.99 USD
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Protect your BMW investment with the Rein EPT0274 Engine Coolant Reservoir, the professional’s choice for cooling system restoration.
Rein Radiator Expansion Tank Hose - G30 B48 B58
Rein Radiator Expansion Tank Hose - G30 B48 B58
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:55821725
Part#: 17125A09423
In Stock at Vendor
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$ 18.99 USD
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$ 18.99 USD
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While the modern B48 and B58 powerplants are incredibly robust, BMW’s choice of brittle plastics for their cooling loops remains a major weak link. This upper radiator vent hose runs constantly hot as it returns pressurized coolant back to the expansion tank. After years of being baked by engine bay heat, the thin plastic neck and internal quick-disconnect seals degrade. A hardened factory plastic line can snap at any moment, spraying coolant everywhere.
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URO Expansion Tank Hose - G11 G30
URO Expansion Tank Hose - G11 G30
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:56760944
Part#: 17128602602
Ships in 2 Business Days
New Item
$ 65.99 USD
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$ 65.99 USD
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This URO Parts Coolant Hose replaces brittle or leaking factory lines connecting the expansion tank to the auxiliary water pump and thermostat on B46/B48 powered G-chassis BMWs. Manufactured with reinforced rubber and robust end connections, it restores proper fluid circulation, withstands high operating pressures, and keeps your cooling system operating reliably under daily and hard driving conditions.
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URO Expansion Tank Hose - F25 - F26
URO Expansion Tank Hose - F25 - F26
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:54851968
Part#: 17128570061
Ships on Jan 5, 2027
New Item
$ 26.99 USD
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$ 26.99 USD
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In the world of performance German engineering, the cooling system is your engine's lifeline. Weak hoses lead to pressure drops and catastrophic failures. Whether you are refreshing your daily driver or prepping your car for the next track event, this heavy-duty coolant recovery tank hose delivers factory-level fitment with upgraded durability.
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Upper Radiator Expansion Tank Vent Hose
Upper Radiator Expansion Tank Vent Hose
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:56977974
Part#: 17127618510
Back Ordered
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$ 27.99 USD
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$ 27.99 USD
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URO Parts delivers a reliable aftermarket solution engineered to match original factory specifications for precise fitment and sustained durability.
Coolant Expansion Tank Overflow Hose
Coolant Expansion Tank Overflow Hose
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:51110144
Part#: 51135K212
In Stock
New Item
Sale - Save 13% $ 7.99

This product was last offered at the strikethrough price on
05-03-2026

$ 6.99 USD
Free Shipping on orders $49 and up
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Sale - Save 13%
$ 7.99

This product was last offered at the strikethrough price on
05-03-2026

$ 6.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Coolant Expansion Tank, Brand: Genuine Audi
Coolant Expansion Tank, Brand: Genuine Audi
Genuine BMW - Corporate Logo
T#:50815443
Part#: 8D0121403D
Special Order: No Guaranteed ETA
New Item
$ 90.99 USD
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$ 90.99 USD
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Coolant Expansion Tank with Heat Shield, Brand: Genuine VW/Audi
Coolant Expansion Tank with Heat Shield, Brand: Genuine VW/Audi ...
Genuine BMW - Corporate Logo
T#:50829038
Part#: 8K0121405N
Special Order: No Guaranteed ETA
New Item
$ 132.99 USD
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$ 132.99 USD
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