Everything you need to service your belt drive system using high quality aftermarket components.
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Brand:
ES#:
4818748
Mfg#:
11288646475KT
In Stock at Vendor
ON SALE!
SAVE 20%
$132.99
This product was last offered at the strikethrough price on 01-03-2026
Replace your failing harmonic balancer and address your leaking front crank seal with this replacement kit
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Brand:
ES#:
5444830
Mfg#:
11239846660KT
Ships in 4 Business Days
$933.00
This product was last offered at the strikethrough price on 03-11-2026
Accessory drive belt idler pulley
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Applies tension to the accessory belt to prevent slippage
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Replaces BMW # 11288519128, 11288512067, and 11288507415
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Applies tension to the accessory belt to prevent slippage
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Protect your engine against harmful harmonics at all RPM levels - 21% Underdrive to greatly increase usable horsepower for racing applications
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Maintain the reliability and performance your Ultimate Driving Machine deserves by upgrading your tensioner assembly to this INA Accessory Belt Tensioner.
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Pulleys drive accessories essential to vehicle operation. Whether you need to install a stock original equipment pulley during a repair, or improve engine performance and appearance with a lightweight aluminum or underdrive pulley, count on ECS Tuning for pulley solutions that work.
Lifetime Replacement
