Automatic Transmission Shift Kits - Gaskets Included - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

TCI Valve Body Performance Improver Transmission Upgrade Kits 526200

TCI Valve Body Performance Improver Transmission Upgrade Kits 526200

Transmission Upgrade Kit, Performance Improver, Ford, Lincoln, Mercury, C-4, 1970-83, Kit

Part Number: TCI-526200

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

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B&M Shift Improver Kits 50262

2.25 out of 5 stars ( 6 )

Estimated Ship Date: Monday 12/29/2025

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TransGo Automatic Transmission Valve Body Repair Kits SK RE4FO4B

Shift Kit, Valve Body Repair, Nissan, Infiniti, RE4F04B, Kit

Part Number: TRG-RE4F04B

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

TCI Trans-Scat Valve Body Kits 220500

Transmission Upgrade Kit, Trans-Scat, Dodge, Jeep, A-500, A-518, Each

Part Number: TCI-220500

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 29, 2026 if ordered today

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Estimated Ship Date: Jan 29, 2026 if ordered today

TransGo Performance Shift Kits RE4FO4B HD2

Shift Kit, Automatic Type, for Nissan, Infiniti, Kit

Part Number: TRG-RE4F04B-HD2

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 7, 2026 if ordered today

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Estimated Ship Date: Jan 7, 2026 if ordered today

TransGo Performance Shift Kits RE4FO4A-HD2

Shift Kit, Automatic Type, for Nissan, Mercury, Infiniti, 4F2OE, Kit

Part Number: TRG-RE4F04A-HD2

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 7, 2026 if ordered today

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Estimated Ship Date: Jan 7, 2026 if ordered today

TCI Trans-Scat Valve Body Kits 400000

Transmission Upgrade Kit, Trans-Scat, Buick, Chevy, Oldsmobile, Pontiac, TH400, Each

Part Number: TCI-400000

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

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B&M Transpak Kits 20228

3.75 out of 5 stars ( 3 )

Estimated Ship Date: Monday 12/29/2025

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TCI Trans-Scat Valve Body Kits 280000

Transmission Upgrade Kit, Trans-Scat, Chevy, Buick, Oldsmobile, Pontiac, Powerglide, Each

Part Number: TCI-280000

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 29, 2026 if ordered today

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Estimated Ship Date: Jan 29, 2026 if ordered today

TCI Trans-Scat Valve Body Kits 376001

Transmission Upgrade Kit, Trans-Scat, Chevy, GMC, 4L60E, LT1, LS1, Each

Part Number: TCI-376001

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

TransGo Performance Shift Kits RL4FO3A-HD2

Reprogramming Kit Fits RL4F03A with TV cable

Part Number: TRG-RL4FO3A-HD2

Not Yet Reviewed

Estimated Ship Date: Jan 7, 2026 if ordered today

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Estimated Ship Date: Jan 7, 2026 if ordered today

TCI Valve Body Performance Improver Transmission Upgrade Kits 226000

Transmission Upgrade Kit, Valve Body Performance Improver, GM, TH400, Kit

Part Number: TCI-226000

Not Yet Reviewed

Estimated Ship Date: Feb 4, 2026 if ordered today

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Estimated Ship Date: Feb 4, 2026 if ordered today

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B&M Shift Improver Kits 20260

4.75 out of 5 stars ( 16 )

Estimated Ship Date: Monday 12/29/2025

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ATP Automatic Transmission Shift Improver Kits SK-1

Shift Kit, Filter, Gaskets, for TH350 or TH350C, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Kit

Part Number: ATP-SK1

Not Yet Reviewed

Estimated Ship Date: Jan 7, 2026 if ordered today

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Estimated Ship Date: Jan 7, 2026 if ordered today

TCI Valve Body Performance Improver Transmission Upgrade Kits 326300

Transmission Upgrade Kit, Trans-Scat, Chevy, Buick, Oldsmobile, Pontiac, GMC, TH250C, TH350C, Each

Part Number: TCI-326300

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Jan 29, 2026 if ordered today

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Estimated Ship Date: Jan 29, 2026 if ordered today

TCI Valve Body Performance Improver Transmission Upgrade Kits 496500

Transmission Upgrade Kit, Performance Improver, Ford, E4OD, 4R100, Kit

Part Number: TCI-496500

Not Yet Reviewed

Estimated Ship Date: Jan 29, 2026 if ordered today

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Estimated Ship Date: Jan 29, 2026 if ordered today

TCI Trans-Scat Valve Body Kits 386000

Transmission Upgrade Kit, Trans-Scat, Buick, Chevy, Oldsmobile, Pontiac, 200-4R, Each

Part Number: TCI-386000

Not Yet Reviewed

Estimated Ship Date: Jan 29, 2026 if ordered today

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Estimated Ship Date: Jan 29, 2026 if ordered today

TransGo Automatic Transmission Valve Body Repair Kits SK 200

SHIFT KIT Valve Body Repair Kit Fits 2004R 1981-on

Part Number: TRG-SK200

Not Yet Reviewed

Estimated Ship Date: Jan 7, 2026 if ordered today

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Estimated Ship Date: Jan 7, 2026 if ordered today

TransGo Performance Shift Kits RE4FO3B HD2

Shift Kit, Automatic Type, for Nissan, Infiniti, Kit

Part Number: TRG-RE4F03B-HD2

Not Yet Reviewed

Estimated Ship Date: Jan 7, 2026 if ordered today

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Estimated Ship Date: Jan 7, 2026 if ordered today

TCI Valve Body Performance Improver Transmission Upgrade Kits 376500

Transmission Upgrade Kit, Performance Improver, Chevy, 700R4, Kit

Part Number: TCI-376500

2.0 out of 5 stars ( 3 )

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

TCI Valve Body Performance Improver Transmission Upgrade Kits 326200

Transmission Upgrade Kit, Trans-Scat, Chevy, Buick, Oldsmobile, Pontiac, GMC, TH350, Each

Part Number: TCI-326200

Not Yet Reviewed

Estimated Ship Date: Feb 4, 2026 if ordered today

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Estimated Ship Date: Feb 4, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

B&M Shift Improver Kits 30262

4.75 out of 5 stars ( 25 )

Estimated Ship Date: Monday 12/29/2025

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