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Sonnax Smart-Tech Input Shaft and Piston Kits

4.0 out of 5 stars 1 Customer Reviews

Based on an ultra-durable, one-piece forging, Sonnax Smart-Tech input shaft and piston kits have a hub with longer front clutch splines. Combining longer splines with a thinner billet aluminum direct piston allows for one extra OE thickness direct friction plate, while keeping original thickness steels, backing plate, original retaining ring and OE clutch clearances.

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Sonnax Smart-Tech Input Shaft and Piston Kits 22121B-08K

SMART-TECH BIG INPUT SHAFT KIT

Part Number: SOX-22121B-08K

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

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