BMW Cooling System Parts & Accessories for BMW X Series E84 (2013-2015)

Black Magic Parts Cylinder Head Coolant Flange - BMW N52 N54 N55 3.0L...

T#:38094360

Part#: 601-0003

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$ 24.99 USD

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The Black Market Parts (by Precision Raceworks) BMW Billet Coolant Flange was designed as a replacement for the factory plastic flange that is found in the hose that connects the thermostat to the cylinder head. The plastic flange commonly cracks, which leads to coolant loss and engine overheating. Replace your coolant flange before disaster occurs and leaves you stuck on the side of the road.

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Bav Auto Spill-Proof Coolant / Antifreeze Funnel

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T#:580395

Part#: B8800082

In Stock

Sale - Save 15% $ 33.99

This product was last offered at the strikethrough price on
08-19-2026

$ 28.99 USD

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This product was last offered at the strikethrough price on
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Multiple adapters include to fit a variety of vehicles.

Titanium Coolant Bleeder Screw Upgrade

T#:38621407

Part#: BMS-TCBS

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$ 25.00 USD

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$ 25.00 USD

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Replace your fragile OEM plastic coolant bleeder screw, which is prone to cracking and failure, with a premium titanium upgrade built for strength and style under the hood. Factory plastic components weaken over time due to constant heat cycles, leading to brittleness and potential failure. Our titanium replacement delivers superior durability, being twice as strong as aluminum yet 45% lighter than steel, ensuring unmatched resilience and long-term reliability for your coolant system. More than an upgrade, it’s a must-have for engine longevity. CNC-machined from solid titanium, each screw features a laser-etched Burger Motorsports logo and is hand-burned to create unique color patterns—no two are alike. A heavy-duty replacement O-ring is included for a perfect fit.

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

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T#:7530036

Part#: COOLANTCAPBLUE

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$ 79.99 USD

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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

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

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T#:7530034

Part#: COOLANTCAPRED

Ships in 1 Business Day

$ 79.99 USD

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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

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Bav Auto Fan Clutch Wrench - 32mm

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T#:580348

Part#: B8800019

In Stock

Sale - Save 20% $ 29.99

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

$ 23.99 USD

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Sale - Save 20%

$ 29.99

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

$ 23.99 USD

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Used to remove your fan clutch

Radiator / Cooling System Pressure Tester- Bavarian Autosport ...

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T#:580397

Part#: B8800084

In Stock

Sale - Save 15% $ 146.99

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

$ 124.94 USD

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$ 146.99

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

$ 124.94 USD

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OEM Wahler Thermostat - E82 E9X E84 E70 E71 with N55 engines ...

T#:14602

Part#: 11537601158

In Stock

$ 121.98

This product was last offered at the strikethrough price on
07-27-2026

$ 109.52 USD

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$ 109.52 USD

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Engine running a little hot or is the temp gauge not telling you anything? The thermostat might be the likely problem. Many cooling issues start with the thermostat. This is electronically controlled by the engine computer based on the cooling demands from the engine. And cooling components are working harder than ever. Engine performance is also dependent on temperature - as temperatures rise and pass a certain threshold the engine computer will begin reducing power. Stay on top of your cooling maintenance by replacing critical components preventatively. This replacement thermostat fits many of the N55 6 cylinder engines and is an Wahler part. The thermostat is located along with the water pump on the side of the engine. To gain access for removal you may need to remove the water pump as well. If the water pump is removed you MUST replace its mounting bolts. You can add them from the options below. We also have a bundled package that includes the water pump, mounting screws, connecting hose, and clamps if you want to replace everything together (recommended).

Manufacturing OE-grade replacement cooling parts is Wahler’s specialty. When you need to replace a component in your vehicle’s water system, high grade, and long-lasting parts from Wahler ensure the job is done properly the first time.

This item fits the following BMWs:
2008-2013 E82 BMW 135i 135is 1M Coupe
2013+ E84 BMW X1 xDrive35i
2011 E90 BMW 335i 335xi 335i xDrive - Sedan
2011-2013 E92 BMW 335i 335xi 335i xDrive - Coupe
2011-2013 E93 BMW 335i Convertible
2011-2013 E70 BMW X5 xDrive35i
2011-2013 E71 BMW X6 xDrive35i

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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...

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T#:7530035

Part#: COOLANTCAPRAW

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$ 78.99 USD

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$ 78.99 USD

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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

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BMW Blue Engine Coolant Reservoir Cap

T#:38161689

Part#: 201-0393-BLU

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$ 109.99 USD

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$ 109.99 USD

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BMW Blue Engine Coolant Reservoir Cap is the perfect upgrade for BMW owners looking to enhance both the performance and appearance of their engine bay. Constructed from high-quality billet aluminum, this cap replaces the flimsy plastic factory cap, offering improved durability and a sleek, high-performance aesthetic.

Designed with precision, this coolant reservoir cap incorporates the OEM pressure relief function to maintain proper cooling system operation. Unlike inferior stick-on covers that may loosen over time, this cap is a complete replacement, ensuring a secure, leak-free fit. The blue anodized finish provides superior corrosion resistance, making it a reliable upgrade for daily drivers and track enthusiasts alike.

OEM pressure relief function – Ensures proper cooling system performance and safety
Billet aluminum construction – Provides enhanced durability and strength over factory plastic caps
Direct-fit replacement – Fully replaces the stock cap for a precise, secure fit
Blue anodized finish – Resists corrosion, heat, and wear for long-lasting performance
Motorsport-inspired design – Adds a sleek, professional look to the engine bay
Built for longevity – Engineered to withstand extreme temperatures and coolant exposure

Upgrade your BMW’s cooling system with the BMW Blue Engine Coolant Reservoir Cap, designed for superior reliability and style.

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Bav Auto Angled Hose Pinch Plier Set - 2pc

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T#:580379

Part#: B8800058

In Stock

Sale - Save 25% $ 32.99

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

$ 24.74 USD

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This product was last offered at the strikethrough price on
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Angled jaws close, creating a complete seal every time you use them - the jaws are offset, making it possible to use in hard-to-reach locations. Made of glass-filled nylon for extra strength. These are perfect for use with brake lines, etc.

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AutoTecknic Dry Carbon Coolant Expansion Tank Cap Cover - Gloss Carbo...

T#:39497984

Part#: BM-0803-GC

Ships in 7 Business Days

$ 74.99 USD

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$ 74.99 USD

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Turner Motorsport offers the AutoTecknic Dry Carbon Coolant Expansion Tank Cap Cover - Gloss Carbon as the perfect addition for BMW owners looking to elevate their engine bay’s appearance with premium materials and precision engineering.

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Vargas Billet Upper Coolant Line Block-Off - BMW N55 & S55 Engines ...

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T#:52094575

Part#: VTT-FAB-047

Ships in 10 Business Days

$ 21.99 USD

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$ 21.99 USD

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When building a custom turbo kit, the "VTT-FAB-047" Block-Off Flange is an essential component for managing your BMW's thermal systems.

BMW Black Engine Coolant Reservoir Cap

T#:38161688

Part#: 201-0393-BLK

Ships in 9 Business Days

$ 109.99 USD

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$ 109.99 USD

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BMW Black Engine Coolant Reservoir Cap is a premium upgrade designed to enhance both the functionality and aesthetics of your BMW’s engine bay. Unlike flimsy plastic OEM caps, this high-performance cap is CNC-machined from durable billet aluminum, providing long-lasting strength and a sleek, motorsport-inspired look.

Built with precision, this cap retains the essential OEM pressure release function, ensuring proper cooling system operation without compromise. Unlike inferior adhesive covers that may detach over time, this cap fully replaces the factory component, delivering a secure and reliable fit. With a corrosion-resistant black anodized finish, it withstands extreme temperatures and harsh conditions while elevating your BMW’s under-hood appearance.

OEM pressure regulation – Maintains factory-designed pressure release for optimal cooling performance
CNC-machined billet aluminum – Provides exceptional durability and long-term reliability
Direct replacement – Fully replaces the stock cap, ensuring a perfect fit without modifications
Corrosion-resistant anodized finish – Prevents wear and adds a stealthy, high-performance look
Heat and fluid-resistant design – Built to withstand extreme temperatures and coolant exposure
Enhanced engine bay styling – Offers a sleek, motorsport-inspired upgrade

Upgrade your BMW’s cooling system with the BMW Black Engine Coolant Reservoir Cap, designed for superior performance and long-lasting durability.

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

2X Entries Into Our F80 M3 Sweepstakes

T#:7530033

Part#: COOLANTCAPBLK

Ships in 4 Business Days

$ 79.99 USD

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$ 79.99 USD

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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

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BMW Silver Engine Coolant Reservoir Cap

T#:38161691

Part#: 201-0393-SIL

Ships in 8 Business Days

$ 109.99 USD

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$ 109.99 USD

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BMW Silver Engine Coolant Reservoir Cap is a premium upgrade for BMW owners looking to enhance both the performance and appearance of their engine bay. Crafted from high-strength billet aluminum, this cap replaces the factory plastic version, offering superior durability and a refined, professional look.

Designed with functionality in mind, it integrates the OEM pressure relief system to ensure your engine's cooling system remains safe and efficient. Unlike adhesive covers, which can peel or wear over time, this cap is a direct-fit replacement, providing a secure and leak-proof seal. The silver anodized finish not only enhances the visual appeal but also ensures resistance to corrosion, high temperatures, and wear, making it perfect for daily driving and track use.

OEM pressure relief integration – Maintains proper cooling system performance and reliability
Durable billet aluminum – Outperforms factory plastic caps in longevity and strength
Precision-machined for perfect fitment – Replaces the stock cap securely, not just a cover
Anodized silver finish – Offers corrosion, heat, and wear resistance
Elevates engine bay aesthetics – Adds a clean, professional appearance
Built for both street and track use – Designed to withstand extreme conditions

Enhance your BMW’s cooling system with the BMW Silver Engine Coolant Reservoir Cap, providing both style and functionality for years to come.

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BMW Cooling System Parts & Accessories for BMW X Series E84 (2013-2015)

Sub-Categories

Black Magic Parts Cylinder Head Coolant Flange - BMW N52 N54 N55 3.0L...

Bav Auto Spill-Proof Coolant / Antifreeze Funnel

Titanium Coolant Bleeder Screw Upgrade

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

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

Bav Auto Fan Clutch Wrench - 32mm

Radiator / Cooling System Pressure Tester- Bavarian Autosport ...

OEM Wahler Thermostat - E82 E9X E84 E70 E71 with N55 engines ...

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

BMW Blue Engine Coolant Reservoir Cap

Bav Auto Angled Hose Pinch Plier Set - 2pc

AutoTecknic Dry Carbon Coolant Expansion Tank Cap Cover - Gloss Carbo...

Vargas Billet Upper Coolant Line Block-Off - BMW N55 & S55 Engines ...

BMW Black Engine Coolant Reservoir Cap

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

BMW Silver Engine Coolant Reservoir Cap

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