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Engines and Components› Crankshafts and Components

Scat Crankshafts

Forged 4340 Steel Crankshaft

$2,584.99 $1,399.50 Save $1,185.49

SKU: SCA-4289022-2

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
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Overview

It is made from aircraft-quality forging with profiled counterweights for reduced weight.

This crankshaft features aero-wing counterweights, straight shot and chamfered oil holes, and large radii on all journals for superior wear resistance. It also includes lightening holes in the rod throws.
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Constructed from robust forged 4340 steel, this crankshaft benefits from profiled aero-wing counterweights that significantly reduce overall weight compared to standard cranks. This crankshaft features straight shot and chamfered oil holes for efficient lubrication and is nitride-hardened for enhanced durability and wear resistance. Large radii on all journals further contribute to its longevity. The design also incorporates lightening holes in all rod throws and is CNC-machined to precise tolerances for absolute symmetry, which aids in balancing and minimizes rotating weight. This component is internally balanced and requires narrow bearings. It is compatible with both one-piece and two-piece rear main seal configurations. It's important to note that this crankshaft does not include main or rod bearings. The product description mentions it is a special order item, with orders placed weekly and an approximate one-week lead time.

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.

Fitment

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Specifications

BrandScat Crankshafts
Part NumberSCA-4289022-2
CategoryEngines and Components
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
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Returns & Fitment

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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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