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BMW Drive Belts & V-Belts for BMW 3 Series E93 (2007-2013)

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Your BMW's drive belts are wear items, and will degrade and crack over time. Don't wait until you have a belt failure... don't get stranded! Replacing your BMW's belts, such as the alternator belt, power steering belt, air conditioning AC belt, or serpentine belt is a low cost insurance policy to preventing a break down -- or worse, engine damage. We recommend checking your belts every 10,000 miles. If your belts have excessive cracks, dry rot, missing teeth and/or grooves, are cause noise, it's time for new ones.

While also inspecting your serpentine belts, also check for wear or resistance in the pulleys. The tensioner pulley and deflection pulley are the primary sources for belt squealing. The rubber-isolated pulleys can also break apart, leading to total belt failure. We sell the tensioner and deflection pulleys for the M50 engine family used in the E34, E36, E39, E46, X5, Z3, and Z4.

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Vargas N54/55 Billet Crank Seal Guard - BMW N54 N55 3.0L

2X Entries Into Our F80 M3 Sweepstakes

T#:638889

Part#: VTT-CRANKGUARD

In Stock

Starting at $ 89.99 USD

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Starting at $ 89.99 USD

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It is a well-known issue on the BMW N54/55 platforms that your serpentine belt can fail for various reasons. When this happens, there is a high chance of the belt getting sucked behind the front damper pulley and then being pushed past the crank seal into your oil pan. From there it can get sucked into the oil pick up causing total engine failure. Even if you do not lose the engine, it is a COSTLY repair to remove the sub-frame and drop the oil pan to remove the belt. The best way to combat this is to watch for oil leaks and keep up on your maintenance. BUT, even with those preventative measures, pre-mature belt failure can occur. This crank seal guard installs over your front crank seal and will keep the belt from being sucked in if a belt failure does occur. This is a cheap way to ensure you do not end up having to replace your motor from oil starvation due to an ingested belt. Vargas' seal is different from those already on market in two major ways. Firstly, it is not offensively priced. Secondly, it is 100% billet with no welds on the tabs to break, no cheap bent thin steel pieces. 100% Billet 6061-T6 aluminum, anodized black for long-term corrosion resistance. Crank Seal Guard includes: One VTT Billet N54/55 Crank Seal Guard Two extended 12.9 Grade bolts, and two stainless washers We highly recommend you install WITH a crank bolt capture at the same time, as you have to remove the damper anyway. Then you will get the benefit of helping eliminate the dreaded spun crank hub and the crank seal issue

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E9X M3 Performance Underdrive Pulley Kit

For vehicles with a production date from 05/2008+ & a counterclockwise rotating Power S...

T#:593749

Part#: 10.00.011

Ships in 4 Business Days

$ 349.00 USD

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$ 349.00 USD

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Free additional power to your M3’s rear wheels without sacrificing or compromising your BMW’s reliability. Machined from 6061-T6 aerospace aluminum, Macht Schnell Performance Underdrive Pulleys are strong as well as lightweight to limit parasitic drag from the accessories within a moderate level for maximum performance on or off the track. After machining and engraving, pulleys are then T3 hard anodized for additional strength, anti-corrosion & wear resistance. Our DualDrive design replaces the Crank Accessory & Power Steering Pulleys, resulting in an additional 9-14 HP and 7-9ft. lbs TQ gain for the M3. Gains are due to a reduction in power required to turn accessories; an increase in accessories lifespan due to lower speed will also result. All factory harmonics/balancing are undisturbed. Macht Schnell Performance Underdrive Pulleys have no negative effect on accessory operation and comes fully equipped with new belts. Already have this kit and need new belts? See T#14491 and T#14489 Performance Underdrive Pulleys Features: DualDrive design allows maximum performance, with minor effect on accessory speed Proper cooling temperatures are retained at proper levels on or off the track Maintains proper alternator speed, allowing sustained levels to sensitive control modules Machined from 6061-T6 aerospace aluminum T3 Hard-Anodized for maximum strength and corrosion/wear resistance No affects to crankshaft dampening or harmonics Simple bolt-on installation

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Performance Kevlar Reinforced Belt - E82/88 E9X N54

10X Entries Into Our F80 M3 Sweepstakes

T#:5858455

Part#: 7PK1855

Ships on Nov 12, 2026

$ 41.99 USD

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$ 41.99 USD

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Replaces BMW # 11287628652 and 11287568247 ECS Tuning Performance Kevlar-reinforced belts give you that extra peace of mind! 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. ECS Tuning Performance Kevlar-reinforced belts have been put through a series of multiple tests: Tensile strength Elongation Hardness Temperature and oil resistance per standard JASO E 109-94 Flex testing per SAE J2432.

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Vargas "Spline Lock" Crank Hub Solution - Includes Crank Bolt Capture...

2X Entries Into Our F80 M3 Sweepstakes

T#:558795

Part#: VTT-CRANKHUB-1

Ships in 1-2 days

$ 889.99 USD

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$ 889.99 USD

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Under certain conditions, the N55 crank hub likes to spin, without warning and even when the engine is in perfect health. The engineers at Vargas saw and dealt with this problem time and again, and they saw fit to do something about it. This hub uses a proprietary "Spline Lock" technology that uses high tolerance machined splines which press into the crank, and positively lock the hub to the crank. The splines are machined in such a way that rotational forces drive the hub, and splines deeper into the crank meaning when the hub encounters a situation that would normally slip a stock hub the splined hub is driven into the crank to keep it in place (much like a splined extractor). Features: Installs the same as a stock hub Does NOT require the crank to be drilled for pins Manufactured from Harndered 17-4SS We suggest the Crank Hub System ONLY be installed by a qualified shop or technician. Timing tools are 100% REQUIRED if installed improperly engine damage may occur. DISCLAIMER: VTT and ECS are not responsible for any engine damage caused by improper installation, or misuse of the crank hub solution.

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ECS Tuning Performance Kevlar Reinforced Belt - N55 E Chassis/ N54 E6...

10X Entries Into Our F80 M3 Sweepstakes

T#:5858460

Part#: 7PK1860

Ships on Nov 12, 2026

$ 49.99 USD

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$ 49.99 USD

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Replaces BMW # 11287628653 and 11287570664 ECS Tuning Performance Kevlar-reinforced belts give you that extra peace of mind! 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. ECS Tuning Performance Kevlar-reinforced belts have been put through a series of multiple tests: Tensile strength Elongation Hardness Temperature and oil resistance per standard JASO E 109-94 Flex testing per SAE J2432.

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ECS Tuning Performance Kevlar Reinforced Accessory Belt - Water Pump ...

10X Entries Into Our F80 M3 Sweepstakes

T#:20979672

Part#: 6PK1460

Ships on Nov 12, 2026

$ 33.99 USD

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$ 33.99 USD

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Replaces BMW # 11287837898 ECS Tuning Performance Kevlar reinforced belts give you that extra piece of mind! 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. ECS Tuning Performance Kevlar reinforced belts have been put through a series of multiple tests such. Tensile strength Elongation Hardness Temperature and oil resistance per standard JASO E 109-94 Flex testing per SAE J2432.

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ECS Tuning Performance Kevlar Reinforced Belt - N52

10X Entries Into Our F80 M3 Sweepstakes

T#:5858454

Part#: 6PK1990

In Stock

$ 45.99 USD

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$ 45.99 USD

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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.

ECS Tuning Performance Kevlar Reinforced Accessory Belt - Air Conditi...

For vehicles with production date from 04/2008

10X Entries Into Our F80 M3 Sweepstakes

T#:3872372

Part#: 6DPK1105

In Stock

$ 30.99 USD

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$ 30.99 USD

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Replaces BMW # 11287841529 ECS Tuning Performance Kevlar-reinforced belts give you that extra peace of mind! 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. ECS Tuning Performance Kevlar-reinforced belts have been put through a series of multiple tests: Tensile strength Elongation Hardness Temperature and oil resistance per standard JASO E 109-94 Flex testing per SAE J2432.

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VTT Billet Power Steering Pulley - N54

2X Entries Into Our F80 M3 Sweepstakes

T#:7292042

Part#: VTT-N54-PSN54

Ships in 2 Business Days

Starting at $ 56.99 USD

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Starting at $ 56.99 USD

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Vargas has introduced their new Billet Power Steering pulleys for the N54 engine! A well-known issue with the N54 with Hydraulic power steering is the plastic pulley either hitting the subframe, or breaking on its own. This can result in the belt to be ejected from the pulley, and leave you stranded with no serpentine belt. This also increases the chance of sucking the belt into the engine through the front seal. Put an end to the dreaded plastic PS pulley issues with the VTT 100% Billet Aluminum PS pulley. These are constructed from 6061-T6 aluminum and anodize in one of 4 colors (Black, Red, Blue, and Clear) for a great look, and long-lasting finish. These weigh 11oz, very close to the weight of a stock pulley, and are lighter than the cast aluminum versions on the market.

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URO Hydraulic Belt Tensioner - BMW E9X M3, E60 M5, E63 M6

2X Entries Into Our F80 M3 Sweepstakes

T#:48573724

Part#: 11287835417

Ships in 1 Business Day

$ 120.11 USD

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$ 120.11 USD

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Hydraulic Belt Tensioner for E9x M3 with S65 engine and E60 M5, E63 M6 with S85 engine. This oil-filled tensioner keeps the main drive belt in the proper tension. Over time, the seals wear, allowing fluid to leak out and the tensioner then becomes frozen or inoperable. Replacement is the best corrective action to take. This can be done during any belt or pulley service or anytime the fan is off the engine.

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Accessory Belt Tensioner Assembly

2X Entries Into Our F80 M3 Sweepstakes

T#:591622

Part#: 11287563927

In Stock

$ 60.99 USD

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$ 60.99 USD

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This is the main belt tensioner for A/C, Alternator, and power steering.

Crankshaft Pulley With Vibration Damper

2X Entries Into Our F80 M3 Sweepstakes

T#:593668

Part#: 11237564969

Ships in 1 Business Day

$ 234.99 USD

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$ 234.99 USD

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Every time the cylinders fire, torque is transferred into the crankshaft. The crankshaft deflects under this torque, which sets up vibrations when the torque is released. At certain engine speeds the torque imparted by the cylinders are in synch with the vibrations in the crankshaft, which results in a phenomenon called resonance This resonance causes stress beyond what the crankshaft can withstand, resulting in crankshaft failure. The accessory pulley acts as a balancer and prevents these vibrations from destroying your crankshaft.

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Idler Pulley

2X Entries Into Our F80 M3 Sweepstakes

T#:37892100

Part#: 11287578675

Ships in 1 Business Day

$ 28.54 USD

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$ 28.54 USD

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The idler pulley serves as a guide and support for the serpentine belt, ensuring it runs smoothly over the entire system.

URO Upper Idler Pulley - BMW N54 3.0L

2X Entries Into Our F80 M3 Sweepstakes

T#:591621

Part#: 11287556251

In Stock

$ 28.89

This product was last offered at the strikethrough price on
10-08-2026

$ 23.99 USD

Limited Qty Sale

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Qty

$ 28.89

This product was last offered at the strikethrough price on
10-08-2026

$ 23.99 USD

Limited Qty Sale

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The higher idler pulley

Bav Auto Ratcheting Serpentine Belt Wrench Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:580390

Part#: B8800077

In Stock

Sale - Save 7% $ 67.99

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

$ 62.99 USD

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Qty

Sale - Save 7%

$ 67.99

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

$ 62.99 USD

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Used to retract your serpentine belt tensioner. This kit includes 18mm, 5/8 in, 14mm, 13mm, 12mm, sockets and 3/8 in and 1/4 in drive adapters

Lower Idler Pulley

2X Entries Into Our F80 M3 Sweepstakes

T#:384427

Part#: 11287557851

Ships in 1 Business Day

$ 23.99 USD

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$ 23.99 USD

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The lowest of the idler pulleys on the accessory drive belt. Featuring NTN/NSK bearing.

Accessory Belt Tensioner Assembly

2X Entries Into Our F80 M3 Sweepstakes

T#:583971

Part#: 11287582946

Ships in 1 Business Day

$ 46.99 USD

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$ 46.99 USD

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URO Belt Tensioner Assembly - E60, E61, E70, E82, E88, E90, E91, E92,...

2X Entries Into Our F80 M3 Sweepstakes

T#:591618

Part#: 11287530314

Ships in 1 Business Day

$ 48.99 USD

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$ 48.99 USD

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Complete tensioner assembly

URO A/C Idler Pulley - BMW E82/88 E84 E9X N55 3.0L

2X Entries Into Our F80 M3 Sweepstakes

T#:43446142

Part#: 11287578674

Ships in 1 Business Day

$ 25.99 USD

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$ 25.99 USD

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Commonly replaced when servicing belts or the cooling system, or when it begins to make noise.

Deflection Pulley

2X Entries Into Our F80 M3 Sweepstakes

T#:591619

Part#: 11287535860

Back Ordered

$ 17.99 USD

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$ 17.99 USD

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Commonly replaced when servicing belts or cooling system, or when it begins to make noise.

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