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ACL

ACL BMW M20/M50/M52/M54 - 1919CC 80.0mm Bore 66.0mm Stroke .50mm Oversized Conrod Bearing Set

$153.60 $90.36 Save $63.24

SKU: A002 6B1490H-.50

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Overview

The ACL 6B1490H-.50 is a set of .50mm oversized connecting rod bearings. Constructed with a F781 material and a hardened steel back, these bearings feature a tri-metal assembly.

These bearings are designed with specific shaft and tunnel size parameters for proper fitment, with a minimum standard shaft size of 44.975 mm (1.7707 in) and a maximum of 44.991 mm (1.7713 in). The standard tunnel size ranges from a minimum of 48 mm (1.8898 in) to a maximum of 48.016 mm (1.8904 in). They are intended for engines with an 80.0mm bore and a 66.0mm stroke.
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Part #: 6B1490H-.50

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandACL
Part NumberA002 6B1490H-.50

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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