GMC SIERRA 2500 HD Transmissions

Automatic Transmission Shift Shaft Seals, OEM-style, Steel/Rubber, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, Saab, Each

Part Number: ADO-8657163

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Estimated Ship Date: Today

• $20 Summit Bucks

Flexplate, 168-tooth, Steel, Internal Balance, Chevy, Small Block LS, Each

Part Number: PIO-FRA-471

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Estimated Ship Date: Today

Automatic Transmission Pan Magnet, THM125C, THM440, 4T60, ME9, TH400, 4l80, Buick, Cadillac, Chevrolet, Each

Part Number: ADO-24239049

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Estimated Ship Date: Today

• $20 Summit Bucks

Separator Plate, Auto Trans Valve Body, Steel, Black/Brown, Cadillac, Chevrolet, GMC, Hummer, Car, Truck, 6L50, 6L80, 6L90, Each

Part Number: ADO-24245720

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Estimated Ship Date: Today

• $20 Summit Bucks

Clutch Kit, Dyna Max Ceramic, Single, 1.375 in. - 10-spline, Ceramic/Kevlar® Disc, Pressure Plate, Flywheel, Chevy, GMC, 6.6L Diesel, Kit

Part Number: SBB-SDM0105DFK

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

Throwout Bearing, Hydraulic Clutch Release Bearing, Standard Type/Style, Chevrolet, Dodge, Ford, GMC, Hummer, Isuzu, Pontiac, Each

Part Number: LUK-MC1184

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Automatic Transmission Pan, Heavy Duty, for GM 6L90, with Magnetic Drain Plug, Filter, Gasket, Hardware, A356.0-T6 Cast Aluminum, Natural, Each

Part Number: PPE-128051900

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Estimated Ship Date: Dec 12, 2025 if ordered today

• Drop Ship
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Transmission Vent Tubes, ACDelco GM Genuine Parts Transmission Vent Tubes, Steel, Silver, Buick, Cadillac, Chevrolet, GMC, Oldsmobile, Pontiac, Each

Part Number: ADO-24200374

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Estimated Ship Date: Today

• $20 Summit Bucks

FLEXPLATE ASSEMBLY

Part Number: PIO-FRA-471HD

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Automatic Transmission Torque Converter Housing Plug, 4L60, 8L45, 6L50, Buick, Cadillac, Each

Part Number: ADO-24205900

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Today

• $20 Summit Bucks

Internal Wiring Harness, Upgrade, GM, Style Harness, Each

Part Number: TCI-276610

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

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Transmission, GM 6L90 4WD 6-Spd

Part Number: VRE-8221A-JMBF

Not Yet Reviewed

Estimated Ship Date: Jan 13, 2026 if ordered today

• Core Charge $1,095.00
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Clutch Kit, Dyna Max Street Dual Disc, 10-spline, Pressure Plate, Flywheel, Chevy, GMC, 6.6L Diesel, Kit

Part Number: SBB-SDDMAXDFY

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Dec 22, 2025 if ordered today

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Transmission Cooler Line Gaskets and Seals, Aluminum/Rubber, Cadillac, Chevy, GMC, Hummer, Pontiac, Each

Part Number: ADO-15251488

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• $20 Summit Bucks

Manual Transmission Case, Manual Transmission Case

Part Number: SPZ-ZMNV23165

Not Yet Reviewed

Estimated Ship Date: Dec 18, 2025 if ordered today

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Clutch Kit, Dual Friction, 1 1/8 in.-10 Spline, 12.0 in. Disc, Chevy, GMC, 6.0L, Kit

Part Number: CTF-DF240010

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Estimated Ship Date: Dec 22, 2025 if ordered today

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Flywheel, Billet Steel, Low Inertia, 168-tooth, 17.85 lbs., Internal Balance, Chevy, Pontiac, LS1, LS6, Each

Part Number: CTF-600142

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

Transmission Filter, Direct Fit, Chevy, GMC, Allison 1000, Sump Filter. Kit

Part Number: SUM-G19014F

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Automatic Transmission Rebuild Components, Clutch Fluid Seals, 6L80, 6L90, Cadillac, Chevrolet, GMC, Pontiac, Kit

Part Number: ADO-24248559

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Estimated Ship Date: Today

• $20 Summit Bucks

Automatic Transmission Pan, Deep, 2 qts. Capacity Increase, Aluminum, Black Powdercoated, GMC, Each

Part Number: AFE-46-70242

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Estimated Ship Date: Today

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Automatic Transmission Brackets and Levers, Shifter Cable Levers, Steel, Zinc Plated, 4L60E, Cadillac, Chevy, GMC, Hummer, Oldsmobile, Each

Part Number: RNB-74124

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Estimated Ship Date: Today

Clutch Kit, Super Street Dual Disc, 1.375 in. - 10-spline, Ceramic Disc, Pressure Plate, Flywheel, Chevy, GMC, 6.6L Diesel, Kit

Part Number: SBB-SSDDMAX-CBY

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Estimated Ship Date: Dec 18, 2025 if ordered today

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Flywheel Bolts, 12pt Head, M11 x 1.5 in., 0.800 in. UHL, 8740 Chromoly, Black, LS, Set of 6

Part Number: PQX-1001282

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Estimated Ship Date: Today

Transmission Filter, Inline, Hose Barbs, fits 5/16 in. Lines, 2 Hoses, 4 Clamps, Kit

Part Number: ATP-JX150

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Transmission Fluid Dipsticks, Bellhousing Mounting, Black Plastic Handle, 39.560 in. Length, Cadillac, Chevrolet, GMC, Each

Part Number: ADO-24267668

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Estimated Ship Date: Today

• $20 Summit Bucks