ATI Transmission Performance Products

Born as a local transmission shop, ATI Performance Products forged its reputation as a leading manufacturer of transmission and driveline components on the dragstrip....

Born as a local transmission shop, ATI Performance Products forged its reputation as a leading manufacturer of transmission and driveline components on the dragstrip. ATI transmissions, torque converters, and driveline products are first developed and tested on the dragstrip before making frequent appearances in winners' circles across the country. Summit Racing is your source for the entire ATI product line, including harmonic balancers, flexplates, transmissions, torque converters, shifters, pulley kits, and more. Shop ATI Performance Products at Summit Racing now, then visit the winner's circle later!

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Results 1 - 25 of 48

ATI Steel Transmission Pans ATI353504

Transmission Pan, Steel, Stock Depth, Black, TH350, Each

Part Number: ATI-353504

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

ATI Stock Transmission Overhaul Kits ATI356300

Auto Transmission Overhaul, THM350, Gaskets, Seals, Non-Lockup, Chevrolet, Pontiac, Buick, Oldsmobile, Cadillac, Kit

Part Number: ATI-356300

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

ATI Lokar Firewall Mount Transmission Dipsticks ATI406493

Transmission Fluid Dipstick, Lokar® Friewall Mount Dipstick, Locking, 29.0 in. Long, Stainless Tube, Aluminum Handle, Chevy, TH350, TH400, Each

Part Number: ATI-406493

Not Yet Reviewed

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

ATI Trick Sticks Locking Transmission Dipsticks ATI356490

Transmission Fluid Dipstick, Trick Sticks, Locking, Steel Tube, Black Handle, Chevy, TH350, Each

Part Number: ATI-356490

4.65 out of 5 stars ( 26 )

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

ATI Automatic Transmission Sprags and Races ATI355490

Automatic Transmission Sprags, Steel, GM, THM350, Each

Part Number: ATI-355490

Not Yet Reviewed

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

ATI Automatic Transmission Drums ATI355259

Clutch Drum, Forward, Steel, TH350, 300M Turbo Spline Shaft, Each

Part Number: ATI-355259

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

ATI Aluminum Transmission Pans ATI353500

Transmission Pan, Deep, Includes Filter Extension, Aluminum, TH350, Each

Part Number: ATI-353500

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

ATI Automatic Transmission Pump Rings ATI355008

Automatic Transmission Oil Rings, Replacement, Pump Rings, PTFE Material, GM, THM350, Set of 5

Part Number: ATI-355008

Not Yet Reviewed

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

ATI Super Pump Front Pumps ATI305033K1

Automatic Transmission Pump, TH350 Super Pump, Pump Body with OEM Shaft, With Gears and Wear Plates, Each

Part Number: ATI-305033K1

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

ATI Front Pump Seals ATI973020

Transmission Seal, Front Pump, Rubber, GM, Powerglide, TH350, TH400, Each

Part Number: ATI-973020

4.95 out of 5 stars ( 19 )

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

ATI Race Transmission Overhaul Kits ATI356340

Overhaul Kit Race Transmission TH350 (without Band Apply)

Part Number: ATI-356340

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

ATI Adapter Kits ATI915242

Adapter Kit, Ford 429-460, Internal Balance To GM, TH350, TH400, Powerglide, Kit

Part Number: ATI-915242

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

ATI Bushing Kits ATI356400

Automatic Transmission Bushings, Replacement, Bushing Kit, GM, THM350, Kit

Part Number: ATI-356400

Not Yet Reviewed

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

ATI Front Pump Gears ATI355090

Automatic Transmission Pump Gears, Front, GM, TH350, Set

Part Number: ATI-355090

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

ATI Extension Housing O-rings ATI973550

Transmission Extension Housing O-Rings, Rubber, Automatic, THM350, THM700-R4/4L60/MD8, Each

Part Number: ATI-973550

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

ATI Torsional Input Shafts ATI357052

Input Shaft, Torsional, Vasco, Chevy, TH350, Stock Spline, Each

Part Number: ATI-357052

Not Yet Reviewed

Estimated Ship Date: Oct 15, 2025 if ordered today

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Estimated Ship Date: Oct 15, 2025 if ordered today

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ATI Automatic Transmission Drums ATI355259

4.25 out of 5 stars ( 6 )

Estimated Ship Date: Monday 9/29/2025

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ATI GM Transmission Swap 130-Tooth Flexplate ATI915660X

Flexplate, Internal Engine Balance, 130-Tooth, 8-Bolt, Mopar, V8, GM, Powerglide, TH350, TH400, Each

Part Number: ATI-915660X

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

ATI GM Transmission Swap 130-Tooth Flexplate ATI915650X

Flexplate, Internal Engine Balance, 130-Tooth, 6-Bolt, Mopar, V8, GM, Powerglide, TH350, TH400, Each

Part Number: ATI-915650X

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

ATI Racing Transmission Slip Yokes ATI139015

Yoke, Racing Transmission Slip Yoke, 27-spline Inner, Forged Steel, GM, Powerglide, TH350, TH350C, Each

Part Number: ATI-139015

4.4 out of 5 stars ( 5 )

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

ATI Transmission Catch Cans ATI356611

Transmission Catch Can, Rectangular, 1 liter Capacity, Aluminum, Black, for Use with GM TH350, Each

Part Number: ATI-356611

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

ATI Aluminum Transmission Bellhousing Gaskets ATI200044G

Bellhousing Components, Bellhousing Gasket, Fits ATI Bolt-On and Direct Fit Bellhousings, GM, TH350/TH400, Each

Part Number: ATI-200044G

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

ATI SFI Standard Bellhousings ATI200044

Bellhousing, Standard, New, SFI 30.1, for OEM Case, 356 T-6 Aluminum, GM, TH350/TH400 Transmissions, Each

Part Number: ATI-200044

4.8 out of 5 stars ( 15 )

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

ATI Automatic Transmission Sprags and Races ATI405350

Sprag, Roller Type, Steel, for GM TH400 Automatic Transmission (1966 and Later), Each

Part Number: ATI-405350

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

ATI Automatic Transmission Sprags and Races ATI355450

Sprag Intermediate Outer Race Heavy Duty OEM Turbo 350

Part Number: ATI-355450

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

ATI Chrome ATI726491

Dipstick & Tube Locking "Trick Sticks" TF-727 Big Block

Part Number: ATI-726491

3.67 out of 5 stars ( 6 )

Estimated Ship Date: Monday 9/29/2025

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Estimated Ship Date: Monday 9/29/2025

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