2012 GMC SIERRA-1500 Transmissions

Automatic Transmission Bushings, Extension Housing, GM Transmission, Each

Part Number: DUR-GMT-3-2TG

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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

Part Number: ADO-24248559

Not Yet Reviewed

Estimated Ship Date: Tomorrow

• $20.00 Summit Bucks

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

Part Number: ADO-24267668

Not Yet Reviewed

Estimated Ship Date: Tomorrow

• $20.00 Summit Bucks

Torque Converter, Twister Full Race, 35-spline, 9.600 in. Diameter, 6L80E, Each

Part Number: HAY-97-1K24F

Not Yet Reviewed

Estimated Ship Date: Tomorrow

• Free Shipping

Specialty Components, 6L80 Stock OE Replacement Boost Valve

Part Number: TRG-6L8BOOSTOES

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

• Drop Ship
• Special Order

Torque Converters, Twister Full Race, 3,200-3,600 rpm Stall Speed Range, 30-spline, 9.600 in. Diameter, 4L60-E/4L65-E/4L80-E, NV3500, Chevy, GMC, Each

Part Number: HAY-97-1H32F

Not Yet Reviewed

Estimated Ship Date: Dec 5, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Servo Piston Sealing Rings, GM, Automatic Transmission, Set

Part Number: ADO-24232073

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

• $20.00 Summit Bucks

Drain Plug, Steel, Stock Replacement, Each

Part Number: ADO-24233099

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

• $20.00 Summit Bucks

Hays Twister 3/4 Race Torque Converter 1998- UP GM, 4L60E/4L65E, 3600-4200 RPM stall

Part Number: HAY-97-1H36Q

Not Yet Reviewed

Estimated Ship Date: Dec 5, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Dowel Pin, Flywheel Locating, Steel, 0.437 in. Diameter, Chevy, Big Block, Each

Part Number: NAL-10046031

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

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: Tomorrow

• $20.00 Summit Bucks

Dipstick, Transmission, Automatic, Steel, Black, Cadillac, Chevrolet, GMC, Each

Part Number: RNB-921-049

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Bellhousing Chevy LS Kit

Part Number: IST-BHG-12005A

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 22, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Flexplate Bolt, Steel, Black Oxide, 10mm x 1.50 Thread, Hex, 1.400 in. Underhead, Chevrolet, Each

Part Number: NAL-11589040

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Automatic Transmission Oil Pump Gasket, 700R4, 4L60, MD8, Each

Part Number: ADO-12337931

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

• $20.00 Summit Bucks

Automatic Transmission Filters, Black Fiber Gaskets, for 2.250 in. Deep Pan, 4L60E, 4L60E-HD, Buick, Cadillac, Chevy, GMC, Isuzu, Olds, Pontiac, Kit

Part Number: ATP-TF126

2.5 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

Automatic Transmission Pan, Steel, Aluminized, 6L80, Cadillac, Chevy, GMC, Hummer, Each

Part Number: ADO-24222657

4.0 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

• $20.00 Summit Bucks

Transmission Fluid Dipstick Components, Transmission Oil Dipstick Tubes, Cadillac, Chevrolet, GMC, Each

Part Number: RNB-917-365

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Automatic Transmission Accumulator Piston Spring, 3-4 Blue Spring, 4L60, 4L65, 4L70, 700R4, TH200-4R, MD8, Each

Part Number: ADO-8639074

Not Yet Reviewed

Estimated Ship Date: Tomorrow

• $20.00 Summit Bucks

Torque Converter, Twister Full Race, 35-spline, 9.600 in. Diameter, 6L80E, Each

Part Number: HAY-97-1K36F

Not Yet Reviewed

Estimated Ship Date: Dec 5, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Transmission Controller Components, Replacement, Cigarette Lighter Adapter, EZ-TCU, Each

Part Number: TCI-30271

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Automatic Transmission Rebuild Components, GM Genuine Parts, Fluid Pump Seal, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Olds, Pontiac, Saab, Each

Part Number: ADO-24208664

Not Yet Reviewed

Estimated Ship Date: Tomorrow

• $20.00 Summit Bucks

Automatic Transmission Bearing and Races, Master Repair Kit, Chevy, GMC, Hummer, Cadillac, Pontiac, Kit

Part Number: LUK-4620219100

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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• Special Order

Automatic Transmission Rebuild Components, Clutch Pack Piston, 4-5-6 Gear Location, Cadillac, Chevrolet, GMC, Hummer, Pontiac, Each

Part Number: ADO-24232416

Not Yet Reviewed

Estimated Ship Date: Tomorrow

• $20.00 Summit Bucks

Automatic Transmission Turbine Shaft Ball Check Valve, 4L60, 700R4, TH200-4R, MD8, Each

Part Number: ADO-8685839

Not Yet Reviewed

Estimated Ship Date: Tomorrow

• $20.00 Summit Bucks