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BMW Drive Belts & V-Belts for BMW G42 M240i xDrive B58 3.0L

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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ECS Tuning Performance Kevlar Reinforced Accessory Belt - B58 & B46TU...

10X Entries Into Our F80 M3 Sweepstakes

T#:5858471

Part#: 6PK1155

Ships on Nov 12, 2026

$ 34.99 USD

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$ 34.99 USD

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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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BMW Drive Belts & V-Belts for BMW G42 M240i xDrive B58 3.0L

ECS Tuning Performance Kevlar Reinforced Accessory Belt - B58 & B46TU...

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