This is the main belt tensioner for A/C, Alternator, and power steering.
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Brand:
ES#:
3450773
Mfg#:
11287563927
Ships in 1 Business Day
ON SALE!
$60.99
This product was last offered at the strikethrough price on 06-25-2026
...or at least as "Bulletproof" as your N54 will ever be! Includes a crank bolt capture kit, crank seal plate, oil filter housing gaskets, and all of the components required to perform this upgrade service.
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Brand:
ES#:
4365384
Mfg#:
ECSN54BPKT
Back Ordered
ON SALE!
$590.99
This product was last offered at the strikethrough price on 04-13-2026
This is the main belt tensioner for A/C, Alternator, and power steering.
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The lowest of the idler pulleys on the accessory drive belt. Featuring NTN/NSK bearing.
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Restore peace of mind and optimal accessory drive performance to your BMW with this premium replacement idler pulley from Febi Bilstein.
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Upgrade your engine bay and protect your steering rack with the Vargas Billet Power Steering Reservoir.
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Upgrade your BMW’s engine bay aesthetics and durability simultaneously with the VTT Billet Power Steering Reservoir in Anodized Blue.
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Drive belts transfer crankshaft power to various accessories, including the alternator, water pump, power steering pump, and air conditioning compressor. Replacement of drive belts, serpentine belts, and drive belt tensioners at recommended service intervals helps you avoid untimely breakdowns and expensive vehicle repairs.
Lifetime Replacement
