Drivetrain Automatic Transmissions and Components

ATK ENGINES

GM 8L90 8SPD AUTO TRANS

$4,458.34

SKU: A040 9714AA

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Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

Remanufactured transmission with improved torque converter (tested for leaks, lock-up, concentricity, balance) to eliminate front seal leaks, vibration, or premature bushing wear. Fully remanufactured valve body with system correction and recalibration kit, independently tested, includes updated throttle valve, manual valve, 4-spool switch valve, pressure regulator valve, and governor plugs for improved shifting, lubrication, and performance. Wear-prone valves restored to stringent specifications and vacuum tested. Each transmission is hot, cold, load, and simulated road tested.

Fitment

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Specifications

BrandATK ENGINES
Part NumberA040 9714AA

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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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