BMW Coolant Expansion Tanks for BMW 2 Series F23 (2015+)

ECS Exact-Fit Silicone Expansion Tank Hose - F-Chassis N55

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:37892077

Part#: 006402LA03

In Stock

Sale - Save 25% $ 104.99

This product was last offered at the strikethrough price on
06-14-2026

$ 78.74 USD

Add to Wish List

Qty

Sale - Save 25%

$ 104.99

This product was last offered at the strikethrough price on
06-14-2026

$ 78.74 USD

Add to Wish List

Over time, factory rubber hoses break down and eventually fail as a result of consistent exposure to chemical-rich antifreeze and hot engine bay temperatures. While all coolant hoses are prone to failure, the expansion tank hose is especially susceptible to failure. To fix this issue, ECS has created the ultimate performance hose upgrade! Crafted from heavy-duty, fiber-reinforced silicone, this ECS Exact-Fit Silicone Expansion Tank Hose withstands higher temperatures and greater pressure than the factory rubber alternative. Engineered to resist electrochemical degradation, it’s tested for continuous operation at 250°F and over 45 psi, ensuring improved reliability, enhanced flow, and reduced turbulence. To further improve upon the factory hose design, ECS engineers developed precision-machined billet aluminum "Quick Connect" hose ends. Unlike the OEM plastic counterparts, these robust components resist heat-induced failure, ensuring long-term durability and reliability. Replaces OEM Part Numbers: 17128570061, 17128507235. Installation is straightforward: begin by removing the factory overflow hose and retaining clips. Transfer the OEM metal clips from the factory connector to the new billet fittings, then press the fittings onto the expansion tank and upper coolant hose. The included silicone hose is routed through the OEM path and securely clamped onto the billet fittings. After installation, the fittings can stay in place, only the silicone needs to be removed for future maintenance. Key Benefits: Direct OEM Fitment – Retains factory hose routing while eliminating the weaknesses of rubber construction. High-Temperature Resistance – Silicone material withstands extreme heat and chemicals for long-term durability. 2-Ply, Fiber-Reinforced Fluorosilicone Construction – Provides superior resistance to glycol-based coolant and other harsh fluids. Upgraded Billet Aluminum Quick-Connect Ends – CNC-machined from 6061-T6 aluminum with integrated O-rings, ensuring a secure, leak-free connection that won’t degrade over time. Easy Installation – Includes stainless steel clamps for a hassle-free, bolt-on upgrade.

Show More Show Less

VTT Billet Coolant Reservoir Cap - Anodized Blue - Most BMWs 2006+ (E...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:7530036

Part#: COOLANTCAPBLUE

In Stock

$ 79.99 USD

Add to Wish List

Qty

$ 79.99 USD

Add to Wish List

VTT is proud to offer their billet replacement for the factory plastic Coolant Reservoir cap. This cap does away with the weak plastic cap while adding some pop, and color to your engine bay. This coolant cap retains ALL of the factory provisions by simply allowing you to snap the factory pressure-relief into the new Billet Cap. VTT also designed these caps to complement their N5X Billet Oil caps, N5XBillet Oil filter housing caps, and Billet Power Steering cap, so all 4 will have the same design. These caps are offered in 4 colors – Red, Black, Blue, and Clear anodized Replaces Genuine BMW Reservoir Cap # 17117639020 Note: Fitment includes 99% of all BMW with a coolant Reservoir tank from the E series forward, meaning then fit even the brand New G8X M3/4 with the S58, all B58, etc. If your BMW is an E90 or newer this cap most likely will fit

Show More Show Less

VTT Billet Coolant Reservoir Cap - Anodized Red - Most BMWs 2006+ (E/...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:7530034

Part#: COOLANTCAPRED

In Stock

$ 79.99 USD

Add to Wish List

Qty

$ 79.99 USD

Add to Wish List

VTT is proud to offer their billet replacement for the factory plastic Coolant Reservoir cap. This cap does away with the weak plastic cap while adding some pop, and color to your engine bay. This coolant cap retains ALL of the factory provisions by simply allowing you to snap the factory pressure-relief into the new Billet Cap. VTT also designed these caps to complement their N5X Billet Oil caps, N5XBillet Oil filter housing caps, and Billet Power Steering cap, so all 4 will have the same design. These caps are offered in 4 colors – Red, Black, Blue, and Clear anodized Replaces Genuine BMW Reservoir Cap # 17117639020 Note: Fitment includes 99% of all BMW with a coolant Reservoir tank from the E series forward, meaning then fit even the brand New G8X M3/4 with the S58, all B58, etc. If your BMW is an E90 or newer this cap most likely will fit

Show More Show Less

Genuine BMW Expansion Tank - F22/23 F3X F87

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:185110

Part#: 17137642160

In Stock

6% off MSRP $ 180.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 169.99 USD

Add to Wish List

Qty

6% off MSRP

$ 180.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 169.99 USD

Add to Wish List

Replace your damaged expansion tank to prevent coolant loss or potential overheating issues.

Genuine BMW Expansion Tank -
This item fits the following BMW Chassis:
F22,F30,F31,F32,F33,F34,F36

Fits BMW Engines including:
N55

Show More Show Less

VTT Billet Coolant Reservoir Cap - Anodized Clear - Most BMWs 2006+ (...

This coolant cap retains ALL of the factory provisions by simply allowing you to snap t...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:7530035

Part#: COOLANTCAPRAW

Ships in 4 Business Days

$ 78.99 USD

Add to Wish List

Qty

$ 78.99 USD

Add to Wish List

VTT is proud to offer their billet replacement for the factory plastic Coolant Reservoir cap. This cap does away with the weak plastic cap while adding some pop, and color to your engine bay. This coolant cap retains ALL of the factory provisions by simply allowing you to snap the factory pressure-relief into the new Billet Cap. VTT also designed these caps to complement their N5X Billet Oil caps, N5XBillet Oil filter housing caps, and Billet Power Steering cap, so all 4 will have the same design. These caps are offered in 4 colors – Red, Black, Blue, and Clear anodized Replaces Genuine BMW Reservoir Cap # 17117639020 Note: Fitment includes 99% of all BMW with a coolant Reservoir tank from the E series forward, meaning then fit even the brand New G8X M3/4 with the S58, all B58, etc. If your BMW is an E90 or newer this cap most likely will fit

Show More Show Less

Genuine BMW Coolant Expansion Tank - F30 F22 F23 F32 F33

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:527196

Part#: 17138677649

Ships in 3 Business Days

6% off MSRP $ 189.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 178.99 USD

Add to Wish List

Qty

6% off MSRP

$ 189.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 178.99 USD

Add to Wish List

The coolant expansion tank in your vehicle gives additional fluid a place to go after expansion and contraction from temperature change. Because it is subjected to such drastic changes regularly, the plastic will become brittle and will often crack or break. You want to keep all the coolant in your vehicle in the cooling system to prevent overheating issues. If your tank has experienced damage such as cracking, nipples breaking off, or mounting point damage, you will need to replace it.

Show More Show Less

Genuine BMW Charge Air Cooler Expansion Tank - BMW F22/23, F3X B48/B4...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:222912

Part#: 17138617045

Ships in 3 Business Days

6% off MSRP $ 162.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 152.99 USD

Add to Wish List

Qty

6% off MSRP

$ 162.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 152.99 USD

Add to Wish List

Your charge air cooler's coolant expansion tank acts as a reservoir, housing extra coolant, and gives fluid a place to go after expansion and contraction from temperature change. Because the plastic tank is subjected to regular temperature changes, the plastic can become brittle over time and will often crack or break. If your tank is leaking and you lose too much coolant, your charge air cooler will not function properly and your air intake temperatures will begin to rise, reducing horsepower and efficiency. If your tank has experienced damage such as cracking, nipples breaking off, or mounting point damage, you will need to replace it.

Show More Show Less

VTT Billet Coolant Reservoir Cap - Anodized Black - Most BMWs 2006+ (...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:7530033

Part#: COOLANTCAPBLK

Back Ordered

$ 79.99 USD

Add to Wish List

Qty

$ 79.99 USD

Add to Wish List

VTT is proud to offer their billet replacement for the factory plastic Coolant Reservoir cap. This cap does away with the weak plastic cap while adding some pop, and color to your engine bay. This coolant cap retains ALL of the factory provisions by simply allowing you to snap the factory pressure-relief into the new Billet Cap. VTT also designed these caps to complement their N5X Billet Oil caps, N5XBillet Oil filter housing caps, and Billet Power Steering cap, so all 4 will have the same design. These caps are offered in 4 colors – Red, Black, Blue, and Clear anodized Replaces Genuine BMW Reservoir Cap # 17117639020 Note: Fitment includes 99% of all BMW with a coolant Reservoir tank from the E series forward, meaning then fit even the brand New G8X M3/4 with the S58, all B58, etc. If your BMW is an E90 or newer this cap most likely will fit

Show More Show Less

Meyle Coolant Expansion Tank - F22/23 230/M240, F3X 330/340/430/440 B...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

T#:5704977

Part#: 17138677649

In Stock at Vendor

$ 164.99

This product was last offered at the strikethrough price on
03-20-2026

$ 123.99 USD

Add to Wish List

Qty

$ 123.99 USD

Add to Wish List

We have found that the expansion tanks should be replaced based on age as well as condition. Expansion tanks seem to have a lifespan of fewer than six to eight years before they show signs of fatigue and wear. Pre-emptively replacing the expansion tank as part of an overall maintenance plan can prevent you from getting stranded from a sudden failure later on.

Show More Show Less

Vargas Expansion Tank Coolant Hose - Blue - BMW B58 F2X F3X

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:51848504

Part#: VTT-B58-CEBLUE

Ships on Jul 23, 2026

$ 59.99 USD

Add to Wish List

Qty

$ 59.99 USD

Add to Wish List

Elevate your BMW's engine bay while safeguarding your cooling system with the VTT B58 Expansion Tank Hose in Blue.

Project Cars

SELECT YOUR BMW

BMW Coolant Expansion Tanks for BMW 2 Series F23 (2015+)

ECS Exact-Fit Silicone Expansion Tank Hose - F-Chassis N55

VTT Billet Coolant Reservoir Cap - Anodized Blue - Most BMWs 2006+ (E...

VTT Billet Coolant Reservoir Cap - Anodized Red - Most BMWs 2006+ (E/...

Genuine BMW Expansion Tank - F22/23 F3X F87

VTT Billet Coolant Reservoir Cap - Anodized Clear - Most BMWs 2006+ (...

Genuine BMW Coolant Expansion Tank - F30 F22 F23 F32 F33

Genuine BMW Charge Air Cooler Expansion Tank - BMW F22/23, F3X B48/B4...

VTT Billet Coolant Reservoir Cap - Anodized Black - Most BMWs 2006+ (...

Meyle Coolant Expansion Tank - F22/23 230/M240, F3X 330/340/430/440 B...

Vargas Expansion Tank Coolant Hose - Blue - BMW B58 F2X F3X

Select Vehicle

Purpose

Category

Brand

Price

Special Offers

Shipping

Narrow Results