BMW Engine Parts for BMW X Series E84 (2013-2015)

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Turner Motorsport has everything you need to upgrade your BMW through our stages of performance or to keep your car in peak condition with our range of the latest in proven OEM cooling parts. Upgrade your cooling system and engine performance with the selections below to give your BMW a performance and reliability advantage.

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Valvetronic Actuator Replacement Kit - BMW N55 S55 3.0L
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:599759
Part#: 11377603979KT2
In Stock
Sale - Save 10% $ 268.99

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

$ 241.95 USD
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$ 268.99

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$ 241.95 USD
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Includes actuator, actuator gasket and valve cover gaskets
ECS - Corporate Logo
T#:48367010
Part#: 059226LA01
In Stock
Sale - Save 3% $ 30.99

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

$ 29.99 USD
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Sale - Save 3%
$ 30.99

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

$ 29.99 USD
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If you're experiencing hard starting, flaky charging, or other electrical issues, your engine ground strap may be the culprit. On E9X BMWs, the engine ground strap is a thin, non-insulated cable that spans from the left engine mount arm to the frame horn. Despite the seemingly simple nature of this part, on older cars, it is known to cause massive headaches. Due to its non-insulated design, years of exposure to water, dirt, and road salt will cause the wire to corrode, ultimately leading to complete failure. A break in this cable will cause an open circuit, resulting in issues with the vehicle's electrical system and potentially leading to a no-start condition.

To solve this issue, ECS has engineered an exact-fit, upgraded ground strap for your E9X BMW! Unlike its OEM counterpart, this design features insulated, large-gauge copper wire for dependable conductivity and long-lasting durability. Additionally, factory-style lugs are zinc-coated, crimped, and soldered, ensuring protection against corrosion and oxidation.

Whether you're replacing a visibly corroded strap or proactively preventing failure, this solution from ECS is sure to provide lasting performance and protection.

FEATURES

Direct-fit replacement and upgrade for RWD E82/E88, E84, and E9X applications Solves intermittent grounding issues caused by aging OEM straps Clean, stealthy design that fits seamlessly in factory engine bays Factory length and lug orientation for drop-in fitment 2 AWG tinned copper cable for excellent conductivity and corrosion resistance Zinc-coated lugs, crimped and soldered to resist moisture and oxidation Black UL1015-grade insulation withstands oil, heat, and abrasion Discreet ECS label for a clean, OEM+ look Replaces OEM part numbers 12427549393, 12427795404, and 12427790559.

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ECS - Corporate Logo
T#:363147
Part#: 003296ECS01
Ships on Sep 29, 2026
Sale - Save 25% $ 152.99

This product was last offered at the strikethrough price on
06-13-2026

$ 114.74 USD
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Sale - Save 25%
$ 152.99

This product was last offered at the strikethrough price on
06-13-2026

$ 114.74 USD
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BMW uses a lot of plastic in their engine components to save weight and money. Unfortunately, plastic is damaged easily and the factory oil filter cap needs a special tool to remove.

Crank Bolt Capture Plate - BMW N55, S55
2X Entries Into Our F80 M3 Sweepstakes
034Motorsport - Corporate Logo
T#:48815416
Part#: 034-113-Z016
In Stock
Sale - Save 15% $ 78.00

This product was last offered at the strikethrough price on
08-17-2026

$ 66.69 USD
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Sale - Save 15%
$ 78.00

This product was last offered at the strikethrough price on
08-17-2026

$ 66.69 USD
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Ease your mind and the strain on your N55 or S55's crank bolt by replacing it with this improved capture plate.

ECS - Corporate Logo
T#:48642696
Part#: 059226LA02
In Stock
Sale - Save 25% $ 30.99

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

$ 23.24 USD
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Sale - Save 25%
$ 30.99

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

$ 23.24 USD
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If you're experiencing hard starting, flaky charging, or other electrical issues, your engine ground strap may be the culprit. On E9X BMWs, the engine ground strap is a thin, non-insulated cable that spans from the left engine mount arm to the frame horn. Despite the seemingly simple nature of this part, on older cars, it is known to cause massive headaches. Due to its non-insulated design, years of exposure to water, dirt, and road salt will cause the wire to corrode, ultimately leading to complete failure. A break in this cable will cause an open circuit, resulting in issues with the vehicle's electrical system and potentially leading to a no-start condition.

To solve this issue, ECS has engineered an exact-fit, upgraded ground strap for your E9X BMW! Unlike its OEM counterpart, this design features insulated, large-gauge copper wire for dependable conductivity and long-lasting durability. Additionally, factory-style lugs are zinc-coated, crimped, and soldered, ensuring protection against corrosion and oxidation.

Whether you're replacing a visibly corroded strap or proactively preventing failure, this solution from ECS is sure to provide lasting performance and protection.

FEATURES

Direct-fit replacement and upgrade for RWD E82/E88, E84, and E9X applications Solves intermittent grounding issues caused by aging OEM straps Clean, stealthy design that fits seamlessly in factory engine bays Factory length and lug orientation for drop-in fitment 2 AWG tinned copper cable for excellent conductivity and corrosion resistance Zinc-coated lugs, crimped and soldered to resist moisture and oxidation Black UL1015-grade insulation withstands oil, heat, and abrasion Discreet ECS label for a clean, OEM+ look Replaces OEM part number 12427549396.

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Valve Cover Kit - N55
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:5376284
Part#: 11127570292TKT
In Stock
Sale - Save 5% $ 320.99

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

$ 304.52 USD
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Sale - Save 5%
$ 320.99

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

$ 304.52 USD
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If your valve cover has become cracked or warped, replace it with this Hamburg Tech cover from Turner Motorsport to prevent leaks and further valvetrain damage. Replace your leaking valve cover to keep your oil inside the engine, where it belongs. Includes everything needed to install a new valve cover: Valve cover Gasket flange Crank case vent hose Hardware
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Wastegate Actuator With Hardware - N20 2.0L Engine
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:5416783
Part#: 11657638783TMSKT
In Stock
Sale - Save 13% $ 240.99

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

$ 209.05 USD
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Sale - Save 13%
$ 240.99

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

$ 209.05 USD
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Located on the exhaust manifold, includes new mounting hardware. The wastegate actuator releases excess boost pressure. A failed unit may result in a boost leak, reduced performance, and, ultimately, turbocharger failure. If your wastegate actuator has failed, replace it with this OEM part from Turner Motorsport to restore performance and prolong engine life.
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Delphi - Factory Spec Ignition Service Kit - N55
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:5498500
Part#: 12137594937IGKT
Ships in 3 Business Days
Sale - Save 5% $ 336.99

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

$ 318.59 USD
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Sale - Save 5%
$ 336.99

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

$ 318.59 USD
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If your BMW's mileage is getting up there, be sure to keep your ignition system in check. Whether you currently have a misfire or you're just doing preventative maintenance, this kit is perfect. The kit includes: 6 Delphi Coils with locks 6 Bosch spark plugs BMW spark plug service label for your records 1 packet of American Grease Stick dielectric grease The kit includes: 6 Bremi Coils with locks 6 Bosch spark plugs BMW spark plug service label for your records 1 packet of American Grease Stick dielectric grease
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OEM Ignition Service Kit - N20 2.0L
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:556723
Part#: N20TISKT
In Stock
$ 218.60 USD
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$ 218.60 USD
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Often an oversight in maintenance, ignition components are also susceptible to wear and tear. Spark Plugs can accumulate carbon, reducing the spark intensity and it's ability to properly ignite the air/fuel mixture, leading to misfires and generally declining performance. Other ignition components, such as coils, boots, wires, caps, and rotors, can also wear out over time due to factors like heat and contamination, preventing the current from reaching the spark plug.

To start over fresh with all new components, we now offer these Ignition Service Kits. Each kit comes with brand new OE quality components, replacing any potential fault points in your ignition system for peak performance!

See kit contents below for a complete list of included components.

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MMX Performance - Corporate Logo
T#:45039725
Part#: MMR20-1004FK
Ships in 3 Business Days
$ 1,227.99 USD
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$ 1,227.99 USD
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The centerpiece of this MMX kit is the UK-made CNC-machined one-piece crank hub, created from billet EN36 steel that's heat-treated with a 0.75mm case hardening, making it incredibly strong and durable. Included are four aerospace precision-machined dowels that mechanically lock the hub to the end of the crank itself, plus a brand new OE bolt. Installation of these dowels is certainly not a DIY job. But, to make the job easier for the professionals, ensuring that the required crank modifications are made safely and accurately, the MMX kit also includes a full installation jig that includes a bolt-on drilling guide, a location bolt for this guide, plus an HSS rolled high-speed drill bit. Together, the single-piece design combined with the four-pin location ensures that there is simply no way that the friction plates can ever slip. With the new OE crank bolt tightened appropriately, this delivers a transformational improvement in reliability and peace of mind versus the OE version. Also included is the MMR Crank Bolt Capture Plate. This adds one additional layer of defense, preventing the crank bolt from being able to back out and loosen over time, ensuring everything is tightly held together as intended.
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Burger Motorsports - Corporate Logo
T#:588633
Part#: OILVALVE-RED
Ships in 2 Business Days
$ 59.00 USD
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$ 59.00 USD
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This simple engine oil cooler valve from Burger Motorsports increases flow to your fender mounted engine oil/air heat exchanger resulting in lower engine oil temperatures and more consistent performance during heavy throttle. Less restrictive than the spring-loaded units. Installs in minutes and is fully reversible. CNC machined for a precise fit and anodized for protection. Made in the USA. Requires BMW's external sport engine oil cooler which is standard on most 2008+ models, optional on 2007 E9x models. FEATURES AND BENEFITS Easily lower engine oil temperature Stock oil cooler will work more efficient More consistent performance CNC Machined for a perfect fit Made in USA
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MMX Performance - Corporate Logo
T#:4552065
Part#: MMR03-0101-BL
Ships in 1 Business Day
$ 142.99 USD
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$ 142.99 USD
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If you are looking for peace of mind over the prone to cracking OEM plastic housing cap, this oil filter housing cap by MMX may be exactly what you are looking for. Composed of billet aluminum, this cap is light, durable, and dresses up your engine bay! Comes finished with a polished anodized dark anthracite coating. Installation is simple as it can be replaced while completing an oil change. *Note: After exposure to excessive heat over prolonged periods, overall finish fading can occur.
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Bosch - Factory Spec Ignition Service Kit - N55
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:556734
Part#: N55TISKT
In Stock
$ 276.99 USD
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$ 276.99 USD
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Often an oversight in maintenance, ignition components are also susceptible to wear and tear. Spark Plugs can accumulate carbon, reducing the spark intensity and it's ability to properly ignite the air/fuel mixture, leading to misfires and generally declining performance. Other ignition components, such as coils, boots, wires, caps, and rotors, can also wear out over time due to factors like heat and contamination, preventing the current from reaching the spark plug.

To start over fresh with all new components, we now offer these Ignition Service Kits. Each kit comes with brand new OE quality components, replacing any potential fault points in your ignition system for peak performance!

See kit contents below for a complete list of included components.

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Density Line Motor Mount - Left - N52/N54/N55
2X Entries Into Our F80 M3 Sweepstakes
034Motorsport - Corporate Logo
T#:388771
Part#: 034-509-0054-SD
In Stock
Sale - Save 15% $ 132.00

This product was last offered at the strikethrough price on
08-17-2026

$ 112.86 USD
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Sale - Save 15%
$ 132.00

This product was last offered at the strikethrough price on
08-17-2026

$ 112.86 USD
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Engine mounts made of dense material for BMWs that have N54 and N55 engines. 034Motorsport's Density Line Mounts raise the bar for both comfort and performance. We have improved our mounts to enhance their performance. They are made from durable rubber that lasts a long time and performs well while still being comfortable to use. Density Line Mounts are made to have no gaps or fluids which eliminates the looseness that you often find in factory mounts. This change results in improved gear shifting and better overall driving performance.
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MMX Performance - Corporate Logo
T#:4565824
Part#: MMR20-1003FK
Ships in 2 Business Days
$ 849.99 USD
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$ 849.99 USD
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Anyone with a modified N55/S55 knows the risks involved with the OEM Crank Hub. When the engine simply can't handle the stresses its put under or the design is such that it simply does not support extreme conditions, issues can arise. Under certain conditions, the N55/S55 crank hub likes to spin, without warning and even when the engine is in perfect health. MMR has produced a EN36 machined billet one-piece crank hub heat treated with a 0.75mm case hardening which makes it extremely durable. Due to the one-piece design, it ensures that the friction plates cannot slip. This offers a huge jump in reliability when paired with a new properly torques crank bolt. Installation is requires no drilling or modification to the OEM crankshaft ensuring a perfect fit! Included in this kit is MMR's T-6061 machined billet aluminum capture plate anodized in their trademark finish. The MMR Performance capture plate secures the head of the OE crank bolt and prevents it from turning or being able to loosen. *Installation recommended by a professional shop or technician.
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MMX Performance - Corporate Logo
T#:19891361
Part#: MMR20-1004
Ships in 1 Business Day
$ 1,064.99 USD
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$ 1,064.99 USD
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Both the N55 and S55 engines are plagued by the same issue when chasing high horsepower numbers... the dreaded crankhub failure. Fortunately MMR Performance has released an upgraded version of their already stout single-piece crankhub, but this time offering a 4-pin dowelled location that locks onto the front of the crankshaft. This configuration eliminates the multi-piece crankhub with friction discs in favor of a more robust single piece crankhub. Recommended for high-powered cars over 700 Horsepower
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OMP - Corporate Logo
T#:1614
Part#: EA-462
In Stock
$ 65.00 USD
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$ 65.00 USD
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OMP Battery Cut Off Switch / Kill Switch, for use in racecars as an emergency "kill switch", to depower the electrical system in the event of a crash or other emergency. This cut off switch is FIA approved, has 6 poles and alternator protection, as well as a removable key.
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Pierburg - Corporate Logo
T#:585314
Part#: 11747626351
In Stock
$ 187.99 USD
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$ 187.99 USD
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Located above the exhaust manifold below the lip of the engine cover

Turbocharger Installation Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:598822
Part#: 11657625293KT3
Ships in 2 Business Days
Sale - Save 9% $ 204.39

This product was last offered at the strikethrough price on
06-10-2026

$ 186.46 USD
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Sale - Save 9%
$ 204.39

This product was last offered at the strikethrough price on
06-10-2026

$ 186.46 USD
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Reusing old hardware and gaskets can often lead to oil and exhaust leaks. To prevent this, we have assembled this kit which includes all of the basic components needed to install a turbo upgrade or a re-built turbo on your N20.
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Hella - Corporate Logo
T#:384437
Part#: 12617501786
Ships in 1 day
$ 103.39 USD
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$ 103.39 USD
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Ensure your vehicle is getting a correct oil level reading with a high quality OEM Hella replacement. Replaces genuine part # 12617501786.

Hella is a premium manufacturer that supplies automotive parts to numerous car brands across the world. Everything from electrical to mechanical genuine parts have been made and supplied directly to BMW before the vehicles ever leave the production floor. Their high quality, long lasting parts have made them a trusted brand chosen to help keep your BMW on the road for many years to come.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

For E84 28i/ix and E89 Z4 28i BMW's with the N20 motor.

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Oil Cooler Housing Gasket Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:637847
Part#: 11428637820KT1
In Stock
$ 179.99

This product was last offered at the strikethrough price on
09-01-2026

$ 176.99 USD
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$ 176.99 USD
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High Pressure Fuel Pump Replacement Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:5389771
Part#: N55HPFKKT
In Stock
$ 1,783.99

This product was last offered at the strikethrough price on
07-06-2026

$ 1,743.99 USD
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$ 1,743.99 USD
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HPFP woes? Replacement high pressure exchange pump for the N55 engine. Kit includes: Remanufactured High-pressure fuel pump Intake manifold gasket sets Throttle body gasket High pressure fuel sensor No core charge required!
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034Motorsport - Corporate Logo
T#:48815408
Part#: 034-113-Z015
In Stock
Sale - Save 14% $ 819.00

This product was last offered at the strikethrough price on
08-17-2026

$ 700.25 USD
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Sale - Save 14%
$ 819.00

This product was last offered at the strikethrough price on
08-17-2026

$ 700.25 USD
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The factory crank hub is infamous for failure in the BMW N55 & S55 engines. Replace it with this assembly to protect your engine in the most extreme situations.
Universal Vortex Breather Catch Can
2X Entries Into Our F80 M3 Sweepstakes
034Motorsport - Corporate Logo
T#:587831
Part#: 034-101-4000
Ships in 2 Business Days
Sale - Save 10% $ 153.00

This product was last offered at the strikethrough price on
08-17-2026

$ 137.70 USD
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Sale - Save 10%
$ 153.00

This product was last offered at the strikethrough price on
08-17-2026

$ 137.70 USD
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MMX Performance - Corporate Logo
T#:48608191
Part#: MMR03-0004
Ships in 5 Business Days
$ 40.00 USD
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$ 40.00 USD
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