Expansion Tanks

Original BMW threaded cap for the engine coolant expansion tank on many BMW models. 

Original BMW replacement for your aged or damaged expansion tank. Direct replacement for BMW part #17137647281. N63A, N63TU.

Original BMW coolant reservoir for charge-air intercooler on G42 2-series, G20 3-series, G22/G23/G26 4-series, and G29 Z4 models.

Original BMW coolant reservoir for charge-air intercooler on 530i, 540i, 740i, and 840i models.

Original BMW reservoir for N63B V8 engine coolant on G30 M550i, G12 750i, and G14/G15/G16 M850i models.

Expansion Tank for Intercooler Coolant, BMW - G30 G12 G15 G05 G06 G07 (N63R N63B) - 17138610658

Original BMW reservoir for engine coolant on select N63 and S63 V8 applications.

Original BMW reservoir for S63M V8 engine coolant on F90 M5 and F91/F92/F93 M8 models.

Original BMW coolant reservoir for B46D engine on 2020+ F48 X1, F39 X2, and F44 228i models.

Original BMW reservoir for B48P/B48R engine coolant on U11 X1 and U10 X2 models

Original BMW small reservoir for B48R engine coolant on U11 X1 and U10 X2 M35i models.

Original BMW electronic valve controls coolant flow from the B48P/B48R engine cylinder head to the coolant expansion tank.

Quality aftermarket coolant reservoir tank for the main cooling system on B58-powered X5/X6/X7 models.

Quality aftermarket expansion tank for S58 engine cooling on G8X M2, M3, and M4 models.

Replacement for your aged or damaged expansion tank

Coolant reservoir tank for the main engine and turbo cooling system

Blue anodized aluminum fluid reservoir cap cover adds a touch of color to the engine bay on G8X M2/M3/M4, F97 X3M, and F98 X4M models.

Black anodized aluminum fluid reservoir cap cover adds a touch of color to the engine bay on G8X M2/M3/M4, F97 X3M, and F98 X4M models.

Red anodized aluminum fluid reservoir cap cover adds a touch of color to the engine bay on G8X M2/M3/M4, F97 X3M, and F98 X4M models.

Blue anodized aluminum engine coolant cap cover adds a touch of color to the engine bay on G8X M2/M3/M4, F97 X3M, and F98 X4M models.

Black anodized aluminum engine coolant cap cover adds a touch of color to the engine bay on G8X M2/M3/M4, F97 X3M, and F98 X4M models.

Red anodized aluminum engine coolant cap cover adds a touch of color to the engine bay on G8X M2/M3/M4, F97 X3M, and F98 X4M models.

Blue anodized aluminum fluid reservoir cap cover adds a touch of color to the B46/B48/B58 engine bay on many BMW models.

Blue anodized aluminum engine coolant cap cover adds a touch of color to the B46/B48/B58 engine bay on many BMW models.

Black anodized aluminum engine coolant cap cover adds a touch of color to the B46/B48/B58 engine bay on many BMW models.

Red anodized aluminum engine coolant cap cover adds a touch of color to the B46/B48/B58 engine bay on many BMW models.

OEM-quality cap for the main coolant reservoir on G42 2-series, G20 3-series, G22/G23/G26 4-series, and G29 Z4 models.

Black anodized aluminum fluid reservoir cap cover adds a touch of color to the B46/B48/B58 engine bay on many BMW models.

Red anodized aluminum fluid reservoir cap cover adds a touch of color to the B46/B48/B58 engine bay on many BMW models.

Replacement coolant reservoir for charge-air intercooler on 530i, 540i, 740i, and 840i models.

Set of 3 blue anodized aluminum engine bay cap covers adds a touch of color to the engine bay on many BMW models.

Set of 3 black anodized aluminum engine bay cap covers adds a touch of color to the engine bay on many BMW models.

Set of 3 red anodized aluminum engine bay cap covers adds a touch of color to the engine bay on many BMW models.

Set of six blue anodized covers fit onto the factory oil cap, coolant caps, AC valve caps, and gas cap.

Set of six blue anodized covers fit onto the factory oil cap, coolant caps, AC valve caps, and gas cap.

Set of six red anodized covers fit onto the factory oil cap, coolant caps, AC valve caps, and gas cap.