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Oil Pump Upgrade Kit - M50/M52/S50/S52

T#:26204983

Part#: 5150-OPUK-M50

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$ 229.99 USD

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The M50/M52/S50/S52 engines are notorious for their well-documented problems stemming from harmonics. The vibration leads to the oil pump shaft becoming weak, causing it to either break or the oil pump nut to loosen and fall off, resulting in an immediate loss of oil pressure. Worry no more! 5150 has the solution! At the core of this kit is a hardened Chromoly shaft, meticulously centerless ground to guarantee absolute precision. This shaft is designed with an exclusive square key lock system, which not only prevents the gear from ever rotating on the shaft but also reinforces the mounting area, adding additional strength. Furthermore, we replaced the problematic oil pump nut with an extended-length bolt, which is EDM drilled to accommodate safety wire for a secure fit in all conditions. Don't wait until your oil pump fails, leaving you facing expensive engine repairs! Key Features: Centerless ground shaft made from hardened Chromoly. Bolt with EDM drilling, including safety wire. Grade 8 extended-length hardware for secure gear attachment. Left-hand threaded to prevent unexpected loosening. Double-D keyed shaft and drive gear. Fully serviceable and rebuildable without the need for grinding.

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Main Stud Kit - M50/M52/S50/S52

T#:26171653

Part#: ARP-MSK-M50

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$ 169.99 USD

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$ 169.99 USD

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This ARP Main Stud Kit is designed to replace BMW 11111735525 for the M50/M52/S50/S52 engines that were used in a variety of BMW models. One significant advantage of these main studs is their ability to prevent main cap walk, which can occur when the main caps shift or move out of position, potentially causing damage to the engine. In addition, ARP Main Studs can safeguard the threads of your engine block, providing an extra layer of protection against potential damage. When opting for main studs instead of factory bolts, it's important to note that the engine builder should mic the bores. Using studs may require a line hone to ensure proper fitment and alignment. A line hone is a machining process that can be used to resize and reshape the main bearing bores, ensuring that they are perfectly round and concentric. This is crucial for ensuring proper oil clearance and preventing premature bearing wear. By mic'ing the bores and performing a line hone if necessary, engine builders can ensure that the main studs are installed correctly and that the engine will perform reliably and at its best. Installation Instructions: To ensure accurate torque readings and proper thread engagement, thoroughly clean all threads in the engine block. If necessary, use an ARP chaser to chase the threads. Before installing any hardware, carefully inspect and clean it for defects, shipping damage, and proper fit, length, and dimension. Gently screw the main studs into the engine block by hand until they are snug. Install the main caps, checking for any binding or misalignment. Apply ARP Ultra-torque fastener assembly lubricant to the threads of the studs, nuts, and washers. Install the washers and nuts onto the studs and tighten them by hand. It is highly recommended to use the ARP Ultra-torque fastener assembly lubricant provided with the kit, as it provides consistent clamping force and reduces friction on the studs. Do not use motor oil or other low-quality lubricants. PRELOAD (TORQUE) RECOMMENDATIONS 7. Following the manufacturer-recommended torque sequence tighten the nuts in steps 1-3 Step 1: Tighten to 20 ft-lbs. Step 2: Tighten to 40 ft-lbs. Step 3: Tighten to 60 ft-lbs. With the included ARP Ultra-Torque fastener assembly lubricant

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Fuel Pressure Regulator - E46 M3, E39 M5, Z3m (s54). Z8

T#:13118

Part#: 13531404089

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6% off MSRP $ 243.99

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

$ 229.99 USD

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6% off MSRP

$ 243.99

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

$ 229.99 USD

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This stock replacement fuel pressure regulator.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

This item fits the following BMWs:
2001-2006 E46 BMW M3
1999-2003 E39 BMW M5
2001-2002 Z3 BMW M Roadster M Coupe
2000-2003 E52 BMW Z8 Roadster

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OEM INA Belt Tensioner - E39 540i 1998, E38 740i/li

For vehicles with production date from 08/1997 to 09/1998

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T#:362737

Part#: 11281742858

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$ 74.99 USD

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$ 74.99 USD

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This is the tensioner pulley assembly for the serpentine belts on E39 540i and E38 740u with M62 engine. This tensioner keeps the belt for the alternator, power steering and Air Conditioning taught to provide maximum performance of each system. OEM replacement for BMW part # 11281742858 and 11287503424.

OEM Schaeffler (INA, LuK, & FAG) is an engineering company that focuses on high-performance, precision manufacturing. With their individual brands INA, Luk, and FAG providing exceptionally high quality parts directly to BMW, as well as countless other automotive companies, their history of reliability and variety of offered parts makes Schaeffler a go-to replacement parts provider for all of us here at Turner Motorsport.

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!

This item fits the following BMWs:
4/1997-1998 E38 BMW 740i 740il
1998 E39 BMW 540i

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Continental Knock Sensor - E36, E39

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T#:581320

Part#: S103541001Z

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$ 81.99 USD

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$ 81.99 USD

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also known as "Ping Sensor"

OEM INA Engine Oil Pump Chain - E36, E46 ,Z3 , Z4

T#:42301987

Part#: ZC0128

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$ 13.99 USD

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$ 13.99 USD

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Keep your BMW’s heart pumping strong, use the INA Oil Pump Chain to replace your stetched and worn out oil pump chain to ensure your engines oiling system is operating at peak performance.

BMW M50 M52 S50 S52 Cut Ring Head Gasket

T#:45176130

Part#: ATH-CR330014

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$ 324.99 USD

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$ 324.99 USD

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Glyco "White" Crankshaft Bearing Shell - Set - E28, E30, E34, E36, E3...

T#:374672

Part#: 11211706852

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$ 111.99

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

$ 108.99 USD

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$ 108.99 USD

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59.75MM(+0.25) bore

Genuine BMW Fuel Injector - S62

T#:20698

Part#: 13641407938

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6% off MSRP $ 696.99

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

$ 655.99 USD

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6% off MSRP

$ 696.99

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

$ 655.99 USD

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Genuine BMW Injection Valve
This item fits the following BMW Chassis:
E39 M5,E39

Fits BMW Engines including:
S62

Meyle Oxygen Sensor - Pre-Cat - E36 Z3 M44, E31, E38, E39 M62 (97-98)...

For vehicles with production date up to 09/1998

5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

T#:5944214

Part#: 11781247406

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$ 57.99 USD

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$ 57.99 USD

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This direct-fit Meyle oxygen sensor plugs directly into your factory connector. Fits M44 engine Z3 and 3 series and M62 engine E39, E38, E31 with V8 engines. No cutting or splicing is required. A new oxygen sensor can improve driveability and lengthen engine life. This is the pre-catalytic converter oxygen sensor

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Hitachi Crankshaft Position Sensor - BMW M52 S52 M54

T#:48815470

Part#: 12141709616

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$ 32.99 USD

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$ 32.99 USD

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NOTE: Does not include o-ring seal - see BMW # 12141748398 This is the crankshaft position sensor. It provides information for the ECU. A faulty sensor can cause issues with timing adjustment and limit performance and vehicle operation. Replace your sensor with a high-quality Hitachi sensor to restore peak performance.

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Febi Cylinder Head Bolt Set - E39, E46, E53

For vehicles with production date from 09/1998

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T#:363746

Part#: 11121740065

Special Order: No Guaranteed ETA

$ 40.99 USD

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$ 40.99 USD

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Includes all head bolts in one cylinder head

Re-manufactured Starter Motor - Priced Each

T#:3471789

Part#: 124123547095KT

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$ 340.99

This product was last offered at the strikethrough price on
10-01-2026

$ 339.99 USD

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$ 339.99 USD

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Price Included a $40.00 Core Charge

Glyco "White" Crankshaft Bearing Shell - Set - E28, E30, E34, E36, E3...

T#:374670

Part#: 11211706849

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$ 177.99

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

$ 172.99 USD

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$ 172.99 USD

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Standard bore

E39 M5 99-03 Stage 1 Turner Motorsport Performance Package

10X Entries Into Our F80 M3 Sweepstakes

T#:2916

Part#: TMS2916

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Sale - Save 1% $ 1,236.95

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

$ 1,224.13 USD

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Sale - Save 1%

$ 1,236.95

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

$ 1,224.13 USD

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1999-2003 E39 M5 Stage 1 Performance Package
Peak Power Gain: +18hp / +20ft-lbs
Rev limit: 7400
Octane: 91 or higher

Our Stage 1 kit featuring a cold-air intake kit and performance software. The aFE intake is made from high-quality materials, reducing underhood temperatures and not contributing to heat soak of the air filter. aFe's Stage 2 Intake uses an oiled cotton air filter for maximum air flow and excellent filtration. The kit is supplied complete with heat shield, ABS plastic intake tube, sealing materials, hardware, and install instructions.

The software is tuned by BMW tuning whiz Jim Conforti and supplied with the Shark Injector. The Shark Injector is a do-it-yourself reflash tool that plugs into the OBD diagnostic plug in your dash. With the push of a button, it will copy your stock software and reflash your computer with the performance tune. You can set it back to stock at any time by following the same procedure.

Both of these items work together to bring up huge torque increases and much improved driveability. They provide a solid performance boost with a low upfront cost. For an excellent 'bang for the buck' upgrade, the software and intake are a great choice.

1999-2003 E39 M5 Stage 1 Engine Upgrade includes:
aFe Cold Air Intake
Shark Injector performance software

Applications:
1999-2003 E39 M5 sedan

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Bosch Remanufactured Alternator - 150amp

For vehicles with liquid cooled alternator and production date from 09/1998

T#:371081

Part#: 12317508054BOSKT

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$ 1,141.99

This product was last offered at the strikethrough price on
08-07-2026

$ 807.99 USD

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$ 807.99 USD

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Includes a $100.00 refundable core charge

"Cold Climate" Crankcase Pressure Regulator Valve

5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

T#:35829339

Part#: 11617533400

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$ 69.99 USD

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$ 69.99 USD

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BMW vehicles are prone to oil separators freezing in cold weather if driven before the engine is fully warmed up. This can lead to a howling noise followed by multiple oil leaks. The crankcase breather valve vents oil vapor from the engine block to the valve cover, but condensation can sometimes cause it to freeze, leading to a failure of the entire oil separator system, causing it to crack and break down. To prevent damage to your engine, it’s best to replace all components of the oil separator system at once. Replacing everything ensures reliable performance and durability. Remember to also order a valve cover gasket to make the replacement process easier.

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CP-Carrillo Forged Piston Set - M54B28 Std. Size

For Vehicles With M54B25 Engine Only

T#:26071892

Part#: M54B25-CPP-84

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Starting at $ 2,206.98 USD

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Starting at $ 2,206.98 USD

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CP-Carrillo sets the benchmark for premium aftermarket forged pistons. Crafted with high-strength, lightweight materials and cutting-edge engineering, this BMW M54B25 piston set boasts the following features: Lightweight Design: Constructed from forged aluminum alloy, CP-Carrillo pistons offer reduced weight, enhancing engine responsiveness and acceleration for a dynamic driving experience. Advanced Engineering: Leveraging state-of-the-art technology, CP-Carrillo engineers optimize combustion, fuel efficiency, and power output, ensuring peak performance in every application. Wide Configuration Range: With a variety of bore sizes and compression ratios available, CP-Carrillo provides options to tailor pistons to specific engine builds and performance objectives. Quality Construction: Each CP-Carrillo piston undergoes precision machining and rigorous testing to meet exacting standards, guaranteeing consistent quality and performance in every set. Engineered by one of motorsport's most respected names, CP-Carrillo pistons are the ultimate choice for the M54B25 engine, whether for street performance or track dominance. Piston Sets Include: Pistons Rings Pins Locks Spec Sheet Optional Extras: Skirt Coating - Adding a Protective Layer Between the Sides of the Piston and Cylinder Walls Dome Coating - Adding a Protective Layer to the Top of The Piston HD-Wrist Pins - A Must if You are Planning on Going Beyond 850 HP! X Forging - Reducing Rotational Mass By Moving the Wristpin Inwards and Shortening it While Increasing Overall Strength Please Note: It is essential to have all engine modifications performed by a qualified professional to ensure proper installation and optimal engine performance, safety, and reliability.

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BMW auxiliary belt

For vehicles with production date from 09/1998

We Price Match - Give Us A Call or Chat!

T#:16242197

Part#: 11281437475

Special Order: No Guaranteed ETA

$ 18.99 USD

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$ 18.99 USD

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FAE Oil Pressure Switch - M12x1.5

T#:374049

Part#: 12617568480

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$ 7.99 USD

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$ 7.99 USD

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Leaking or malfunctioning oil pressure switches can be disastrous

Meyle Outdoor Temperature Sensor / Probe

5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

T#:579266

Part#: 3009190001

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$ 44.99 USD

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$ 44.99 USD

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Common fix for incorrect OBC temperature readings

Complete Fuel Injector Set

10X Entries Into Our F80 M3 Sweepstakes

T#:15677494

Part#: 13537528539-KT

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Sale - Save 3% $ 876.99

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

$ 849.89 USD

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Sale - Save 3%

$ 876.99

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

$ 849.89 USD

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A vehicle with dirty injectors may host a wide variety of symptoms. From stalling, hesitation, misfiring, and a rough idle, to the wide open throttle woes. If your vehicle is suffering from these symptoms, the fuel injectors may be the cause.

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FAE Oil Pressure Switch - M12x1.5

T#:377029

Part#: 12612367061

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$ 5.99 USD

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$ 5.99 USD

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Leaking or malfunctioning oil pressure switches can be disastrous

OEM Ruville Engine Idler Pulley -- E39 E53

For vehicles with manual transmission only with production date from 05/1999

T#:6738

Part#: 11287500560

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$ 38.99

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

$ 31.99 USD

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$ 31.99 USD

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This is an OEM Ruville Idler Pulley, also known as the roller pulley or deflection pulley. The idler pulleys are known to be the primary sources for 'belt squealing'. The pulley is also encased in rubber which will crack over time. If left without service the rubber could fail completely, chucking the belt and leaving you stranded. Replacement is a very simple procedure and can be done anytime the fan is off the engine (belt replacement, water pump service, alternator replacement, etc).

OEM Schaeffler (INA, LuK, Ruville, & FAG) is an engineering company that focuses on high-performance, precision manufacturing. With their individual brands INA, Luk, and FAG providing exceptionally high quality parts directly to BMW, as well as countless other automotive companies, their history of reliability and variety of offered parts makes Schaeffler a go-to replacement parts provider for all of us here at Turner Motorsport.

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!

This item fits the following BMWs:
BMW 5 Series - 540i, 535i
BMW X Series - X5 4.6is 4.4i

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Accessory Belt Service Kit w/ Kevlar Reinforced Belt - E39 540i, E38 ...

For vehicles with production date up to 09/1998

10X Entries Into Our F80 M3 Sweepstakes

T#:23416510

Part#: 11287833264T2KT

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Sale - Save 17% $ 755.99

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

$ 626.02 USD

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Sale - Save 17%

$ 755.99

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

$ 626.02 USD

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Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes ECS Kevlar Reinforced Drive Belts, tensioners, and pulleys required to install the new tensioner. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!

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Valve Cover Gasket Set

For vehicles with production date from 09/2002

T#:596682

Part#: 11120030496

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$ 23.99

This product was last offered at the strikethrough price on
08-13-2026

$ 21.99 USD

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$ 21.99 USD

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Keeping the oil inside your engine is extremely important to performance. Between oil change intervals, your oil can dip to dangerous levels if there is a leak you may not be aware of. The valve cover is an extremely common place for this to happen. Years of exposure to extreme temperature change degrades the gaskets and causes failure. Replace yours to keep your engine oil in your vehicle.

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Engine Cylinder Head Gasket Set

2X Entries Into Our F80 M3 Sweepstakes

T#:594036

Part#: 11121436822

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$ 428.16 USD

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$ 428.16 USD

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A comprehensive, track-ready top-end rebuild kit designed to restore maximum compression and bulletproof your engine's vitals.

Professional BMW M54B30 Piston Set Of 6 – 84.00 Mm Bore – 30.32 M...

T#:45210339

Part#: KE324M84

In Stock at Vendor

$ 1,157.99 USD

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$ 1,157.99 USD

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CP Forged Piston Set - BMW M54B25 - 84mm Bore - 8.5:1 CR

T#:48367042

Part#: CPFPSM54B25848.5

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$ 1,399.99 USD

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$ 1,399.99 USD

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CP Carrillo offers arguably the highest qulaity pistons on the market for BMWs, engineered for maximum power and durability. Utilizing high-strength, lightweight materials and advanced engineering and design to ensure they are the perfect choice for any M54B25 engine and application, from street to track use.

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Fluidampr Internally Balanced Damper 96-06 BMW M52/M54

T#:58271028

Part#: 843301

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$ 627.99 USD

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$ 627.99 USD

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Protect your BMW M52 or M54 I6 engine from harmful torsional vibration with a Fluidampr viscous damper designed for high-performance street, drifting, autocross, and road racing applications. Increased torque, RPM and rotating assembly changes can reduce the effectiveness of stock elastomer-style dampers. Fluidampr viscous damping technology helps control crankshaft harmonics across the entire RPM range to support long-term engine durability, accessory drive stability and reduced wear on critical components.

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OEM INA Accessory Drive Belt Tensioner Kit - BMW E46 M54 (2003+) ...

For 2003+ model years only

T#:41897486

Part#: 5290053300

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$ 251.99 USD

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$ 251.99 USD

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This OEM INA accessory belt tensioner kit is the perfect choice for refreshing your M54's drive belt system. Included in this kit: Drive Belt Tensioners (2) Idler Pulleys (2) Accessory Belts (2) Engine Water Pump

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Fluidampr Internally Balanced Damper 91-95 BMW M50/M52/S50/S52 ...

T#:58271027

Part#: 843311

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$ 701.99 USD

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$ 701.99 USD

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Protect your BMW M50 I6 engine from harmful torsional vibration with a Fluidampr viscous damper designed for high-performance street, drifting, autocross, and road racing applications. Increased torque, RPM and rotating assembly changes can reduce the effectiveness of stock elastomer-style dampers. Fluidampr viscous damping technology helps control crankshaft harmonics across the entire RPM range to support long-term engine durability, accessory drive stability and reduced wear on critical components.

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