Wavetrac

Helical Gear Differential

$1,395.00

SKU: 42.309.185WK

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

Designed from the ground up, it incorporates advanced gear tooth forms optimized for strength and improved oil film retention, resulting in a smaller yet more durable gear package. Its design pays close attention to the side gear/axle interface, maximizing material thickness in this critical area for high-power applications. This differential is manufactured in the USA by Autotech Driveline and is distinguished by its patented technology that actively mitigates wheelspin. During zero axle load conditions, the Wavetrac cam device generates internal load, ensuring drive is maintained on the gripping wheel rather than allowing it to act like an open differential. The internal gears are constructed from high-strength 9310 alloy steel, and the diff bodies are precisely machined from case-hardened steel billet. This specific Wavetrac differential (Part # 48.309.185WK) is designed to fit the Mercedes HAG215 rear axle. It is compatible with a range of AMG models, including the E55/E63 W211, E63 W212, C63 W204, C55 W203, SL55/SL65 R230, CLS63, SL600 R230, CLK63/CLK55/CLK500 ('04+) W209, and SLK55 R171. All Wavetrac differentials come with a transferable, Limited Lifetime Warranty, underscoring the brand's commitment to quality and durability.

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

BrandWavetrac
Part Number42.309.185WK
CategoryDrivetrain

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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.

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