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BMW Cooling System Parts & Accessories for BMW X Series F25 (2011+)

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The cooling system is arguably the weakest point in numerous BMWs. If you drive an aging BMW or plan on taking your car to the track like we do, we recommend beefing up your cooling system before going to the track. Generally, the main components in your cooling system that are prone to failure include the following: expansion tank, factory hoses, water pump, thermostat, fan (especially if your vehicle comes factory with a clutch fan), and radiator. Factory BMW expansion tanks are plastic and prone to either breaking off at connection points or combusting. As factory rubber hoses age they either crack or break over time - we offer silicone cooling hose upgrades for most applications to avoid future failures. If you have an older vehicle, your water pump likely comes from the factory with a plastic impeller - we offer upgraded water pumps with metal impellers that are far more reliable. Newer model BMWs utilize electric water pumps - BMW spent millions of dollars engineering these water pumps, but they fail so often that we recommend replacing at 60,000 mile service intervals to avoid being stranded on the side of the road. In terms of thermostats, we offer various upgraded thermostats for racing applications. If your BMW utilizes a clutch fan from the factory, we have several options available in terms of universal electric fans - we recommend replacing these to avoid sending brittle plastic fan blades through your hood. For radiators, we recommend swapping out your radiator for one that does not use plastic connection points like your factory radiator.

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Rein Coolant Hose - BMW F22/23 F3X

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T#:594310

Part#: 11537639997

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$ 57.99 USD

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$ 57.99 USD

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Water pipes and coolant hoses are essential for proper cooling. If they are cracked, they are going to need to be replaced as soon as possible to avoid overheating your engine.

Rein Water Hose With Gasket - Water Pump To Engine Inlet

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T#:17804808

Part#: 11537584630R

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$ 40.99 USD

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Rein OE quality water hoses are designed to be direct replacements for OE hoses and assemblies. This includes the hose and clamps.

Coolant Connection Flange - N47

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T#:4840519

Part#: 11127810707

In Stock

$ 47.99

This product was last offered at the strikethrough price on
06-17-2026

$ 40.99 USD

Limited Qty Sale

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$ 47.99

This product was last offered at the strikethrough price on
06-17-2026

$ 40.99 USD

Limited Qty Sale

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Keep Your Coolant System Operating Properly And Leak Free. Quality Rein coolant flange attaches to the engine block below the intake manifold and flows coolant out of the engine.

Rein Coolant Hose - BMW F22/23 F3X

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T#:591823

Part#: 11537639998

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$ 42.99 USD

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$ 42.99 USD

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Connects from water pump to block

Coolant Expansion Tank

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T#:592029

Part#: 17138616418

Ships in 4 Business Days

$ 85.99 USD

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$ 85.99 USD

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Replaced your cracked unit with a new coolant expansion tank

Febi Coolant Expansion Tank Cap - E90 E92 F30 F32 F10 F12 F06 ...

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T#:340719

Part#: 17117639020

In Stock

$ 16.99 USD

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$ 16.99 USD

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This radiator expansion tank cap is used most BMW's from 2006+. It is a common failure item. When this item fails, it cannot hold pressure which results in your BMW overheating. If you are overhauling your coolant system, now is the time to consider preventative replacing this cap. It is also referred to as the coolant reservoir cap.

Since the late 1800’s Febi has been fabricating replacement metal parts. This history is self evident in the quality and vast amount of applications they service. With more than 34,000 repair solutions for cars and commercial vehicles you can be sure Febi has you covered.

This item fits the following BMWs:
2008-2013 E82 BMW 128i 135i 135is 1M Coupe
2014+ F22 BMW 228i 228i xDrive M235i M235i xDrive
2012+ F30 BMW 320i 320i xDrive 328d 328d xDrive 328i 328i xDrive 335i 335i xDrive - Sedan
2013+ F31 BMW 328i xDrive 328d xDrive - Wagon
2014+ F34 BMW 328i xDrive GT, 335i xDrive GT - Gran Tourismo
2013+ F32 BMW 428i 428i xDrive 435i 435i xDrive - Coupe
2013+ F33 BMW 428i Convertible 428i xDrive Convertible 435i Convertible 435i xDrive Convertible- Convertible
2014+ F36 BMW 428i Gran Coupe 428i xDrive Gran Coupe 435i Gran Coupe 435i xDrive Gran Coupe
2014+ F07 BMW 535i GT, 535i xDrive GT
2012+ F10 BMW 528i 528i xDrive 535i 535i xDrive 535d 535d xDrive
2011+ F10 BMW 528i 528i xDrive 535i 535i xDrive 535d 535d xDrive
2012+ F12 BMW 640i 640i xDrive 650i 650i xDrive
2013+ F06 BMW 640i Gran Coupe 640i xDrive Gran Coupe 650i Gran Coupe 650i xDrive Gran Coupe
2009+ F01 BMW 740i 740li 740li xDrive 740ld xDrive 750i 750li 750i xDrive 750li xDrive 760li
2013+ E84 BMW X1 sDrive28i X1 xDrive28i X1 xDrive35i
2011+ F25 BMW X3 xDrive28i X3 xDrive28d X3 xDrive35i
2015+ F26 BMW X4 xDrive28i X4 xDrive35i
2007-2013 E70 BMW X5 3.0si X5 4.8i X5 xDrive30i X5 xDrive35d X5 xDrive35i X5 xDrive48i X5 xDrive50i X5M
2014+ F15 BMW X5 sDrive35i X5 xDrive35d X5 xDrive35i X5 xDrive50i
2008-2014 E71 BMW X6 xDrive35i X6 xDrive50i X6M

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Febi Temperature Sensor

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T#:340711

Part#: 13621433076

In Stock at Vendor

$ 17.99

This product was last offered at the strikethrough price on
06-22-2026

$ 16.99 USD

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$ 16.99 USD

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Monitors coolant / oil temperature

Rein Water Pump Service Kit - N20

Production years 2013-2014

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T#:14023861

Part#: 11518635089-4

Ships in 4 Business Days

$ 898.99 USD

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$ 898.99 USD

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Kits include: water pump thermostat assembly head to thermostat hose w/ aluminum flange WP to engine hose WP to thermostat hose all necessary clamps and hardware This Rein water pump service kit addresses common coolant hose plastic flange failure and ensures that the water pump replacement repair is done right the first time. The water pump and thermostat are OEM Use of OE or Pentosin NF-G11 coolant is recommended

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BMW Turbo Cooling Line

T#:46478582

Part#: CHT0690

Back Ordered

$ 56.00

This product was last offered at the strikethrough price on
04-28-2026

$ 55.99 USD

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$ 55.99 USD

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Your turbo is constantly working under extreme heat and pressure, generating serious boost every time you get on the gas. The turbo cooling lines are responsible for circulating coolant through the turbocharger, keeping temperatures in check and safeguarding internal components from excessive heat. With time, these lines can corrode, crack, or clog—compromising coolant flow and system efficiency. If left unchecked, a failing line can lead to overheating, loss of performance, or even costly turbo damage. Why replacing them matters: Protect your turbo – Ensures proper cooling to prevent heat soak and extend turbo life. Stop leaks early – Prevent small coolant drips from turning into bigger, more expensive problems. Keep performance consistent – Reliable cooling means steady boost and dependable operation. Don’t let a tired cooling line put your turbo at risk—replace it and keep your forced-induction system performing at its best.

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Rein Turbo Cooling Line - Return

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T#:17771598

Part#: 11538663517

In Stock at Vendor

$ 86.99

This product was last offered at the strikethrough price on
05-07-2026

$ 84.99 USD

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$ 84.99 USD

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Rein turbo hoses are manufactured with premium OE quality material to offer maximum protection from premature failures.

Engine Coolant Thermostat - F25 F26 - N55

T#:55965845

Part#: 11537586784

Ships in 4 Business Days

$ 85.99 USD

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$ 85.99 USD

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Maintain exact control over your N55’s operating temperatures under demanding street and track conditions with this Rein replacement thermostat unit. Engineered to match factory standards, this complete housing and thermostat assembly ensures your cooling system handles thermal loads flawlessly to prevent heat soak or dangerous overheating.

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Lower Radiator Coolant Hose

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T#:594374

Part#: 17127639213

Ships in 1-2 days

$ 51.03 USD

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$ 51.03 USD

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Replacement Lower Radiator Coolant Hose from Rein

Water Pump Service Kit

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T#:38161728

Part#: 11515A05704

Ships on Aug 6, 2026

$ 749.99 USD

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$ 749.99 USD

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Febi Electric Water Pump - BMW F10 F25 N52 3.0L

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T#:36303287

Part#: 11517583836

Special Order: No Guaranteed ETA

$ 1,124.99 USD

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$ 1,124.99 USD

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This water pump is designed to provide reliable and efficient cooling for your BMW's engine. This high-quality electric coolant pump is specifically engineered for the F10 and F25 models, ensuring optimal performance and longevity. As a genuine OEM part, it guarantees perfect compatibility with your BMW, offering seamless integration and superior functionality. Key Benefits: OEM part ensures precise fit and reliable performance. Enhances engine cooling efficiency, preventing overheating. Specifically designed for BMW F10 and F25 models. Manufactured with high-quality materials for durability and longevity. Easy installation for a hassle-free replacement process.

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Coolant Expansion Tank Cap

T#:56001934

Part#: 46221

Special Order: No Guaranteed ETA

$ 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.

Thermostat With Housing

T#:56001956

Part#: 11538635689

Special Order: No Guaranteed ETA

$ 126.99 USD

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$ 126.99 USD

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This Febi Bilstein thermostat assembly is the perfect solution for maintaining correct cooling system pressures and temperatures on the street or the track.

OEM Rein Coolant Expansion Tank Overflow Hose - BMW F25 X3, F26 X4 N5...

T#:45757476

Part#: 17128651298

Back Ordered

$ 31.99 USD

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$ 31.99 USD

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This hose connects the expansion tank to the upper radiator hose. If your coolant expansion tank hose is cracked or leaking, replace it early to prevent further coolant loss and eventual overheating.

Febi Radiator Hose

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T#:38553906

Part#: 17127601855

Special Order: No Guaranteed ETA

$ 45.99 USD

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$ 45.99 USD

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Maintain efficient coolant flow and regulate engine temperature with the Radiator Hose - Engine to Radiator. This critical component connects your engine to the radiator, ensuring proper heat dissipation and preventing engine overheating. Crafted from durable materials, it's built to withstand high temperatures and pressures for reliable long-term performance. Key Features: OEM-Quality Construction – Designed to meet or exceed factory standards for a perfect fit and consistent performance. Heat-Resistant – Built to endure extreme temperatures and pressure within the engine’s cooling system. Durable & Long-Lasting – Manufactured from robust materials to resist cracking, wear, and degradation over time. Leak-Proof – Seals securely to prevent coolant leaks, ensuring optimal engine temperature management. Easy Installation – Direct-fit replacement with no modifications needed for quick and efficient installation. Replace your Radiator Hose - Engine to Radiator to maintain your cooling system’s efficiency and safeguard your engine from overheating.

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