2003 GMC SIERRA 1500 HD Transmission & Drivetrain - In Stock Filter Options - Vendor In Stock Filter Options

Chevrolet Performance Flexplate Bolts 19257940

Flexplate Bolt, Steel, 11mm x 1.5, 1.000 in. UHL, For Use With 12563532 Flexplate Spacer, Chevy, Gen III, Each

Part Number: NAL-19257940

1.5 out of 5 stars ( 4 )

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TCI Beast Automatic Transmission Sun Shells 373900

TCI Beast Automatic Transmission Sun Shells 373900

Sun Shell, Automatic Transmission, Steel, GM, 700R4, 4L60E, 4L65E, Each

Part Number: TCI-373900

5.0 out of 5 stars ( 9 )

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Lokar Hi-Tech Flexible Braided Stainless Transmission Dipsticks TD-34L80TM

Transmission Dipstick, Braided Stainless Steel, Natural, Transmission Mount, 4L80E, Each

Part Number: LOK-TD-34L80TM

3.0 out of 5 stars ( 1 )

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Moog Wheel Bearing and Hub Assemblies 515086

Wheel Hub and Bearing Assembly, Front, Chevy, GMC, Each

Part Number: MOG-515086

5.0 out of 5 stars ( 6 )

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Dorman Torque Converter Bolts 14099

Bolts, Torque Converter, 10mm x 1.5, Steel, Natural, 0.887 in. UHL, Buick, Cadillac, Chevrolet, GMC, Isuzu, Oldsmobile, Pontiac, Saab, Set of 3

Part Number: RNB-14099

5.0 out of 5 stars ( 3 )

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TCI Automatic Transmission Controller Components 302611

Automatic Transmission Controller Component, Bluetooth Adapter, for Use Adapting the TCI EZ-TCU To Work with Bluetooth, GM, TCI, Each

Part Number: TCI-302611

1.0 out of 5 stars ( 1 )

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ACDelco GM Genuine Parts Wheel Bearing and Hub Assemblies 84856655

Wheel Bearing and Hub Assembly, GM OE, Steel, Natural, Front, Cadillac, Chevy, GMC, Each

Part Number: ADO-84856655

5.0 out of 5 stars ( 3 )

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Hays Twister Full Race 3,200-3,600 Stall Torque Converter 97-1J32F

Torque Converters, Twister Full Race, 3,200-3,600 rpm Stall Speed Range, 35-spline, 9.600 in. Diameter, Chevrolet 4L80-E, Cadillac, Chevy, GMC, Each

Part Number: HAY-97-1J32F

Not Yet Reviewed

Estimated Ship Date: Feb 24, 2026 if ordered today

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Estimated Ship Date: Feb 24, 2026 if ordered today

Yukon Gear & Axle U-Joint Strap Kits YY STR-002

U-Joint Straps, Steel, Natural, Pair

Part Number: YGA-41193

5.0 out of 5 stars ( 1 )

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SVL Drivetrain Ring and Pinion Gear Sets 2023698 GM 8.5/8.6 in. 3.23 Gears

Ring and Pinion Gears, 3.23:1 Ratio, GM 8.5 in., Set

Part Number: SVL-2023698

Not Yet Reviewed

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ACDelco Torque Converter Dust Covers 24261712

Flywheel And Flexplate Dust Covers, Torque Converter, Plastic, Black, GM, Each

Part Number: ADO-24261712

4.67 out of 5 stars ( 6 )

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Yukon Gear & Axle U-Joints YUJ1153

U-Joint, Spicer 1350 To GM 3RL/S44/Mechanics 3/American Axle 1344 Combination, Greasable, Steel, Each

Part Number: YGA-42001

5.0 out of 5 stars ( 2 )

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ACDelco GM Genuine Parts Multi-Purpose Seals 12471686

Axle Seal, Steel/Rubber, GM 8.5/8.625 in., 2.848 in. O.D., 1.623 in. I.D., Each

Part Number: ADO-291-315

4.5 out of 5 stars ( 2 )

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Motive Gear Ring and Pinion Sets GM10-273 GM 8.5/8.6 in. 2.73 Gears

Gear, Ring and Pinion, 2.73:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-GM10-273

4.5 out of 5 stars ( 2 )

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Yukon Gear & Axle Ring and Pinion Sets YG GM9.5-411 GM 9.5 in. 4.11 Gears

Ring and Pinion Gears, 4.11:1 Ratio, 30-spline, Standard Rotation, GM 9.5 in., Set

Part Number: YGA-24167

Not Yet Reviewed

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ATP Automatic Transmission Filter Kits TF-174

Automatic Transmission Filters, Rubber Gasket, 4L60-E, 4L65-E, 4L80-E, 4L80-E-HD/MN8, 4L85-E, Kit

Part Number: ATP-TF174

Not Yet Reviewed

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Summit Racing Equipment® U-Joints SUM-732001

Universal Joint, 1344 Style, Greasable, Steel, Each

Part Number: SUM-732001

3.0 out of 5 stars ( 2 )

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Motive Gear Master Ring and Pinion Installation Kits R9.5GRLMK

Ring and Pinion Installation Kit, Master Kit, GM 9.5, 30-Spline Pinion, Kit

Part Number: MGR-R9-5GRLMK

5.0 out of 5 stars ( 1 )

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Timken Pinion Bearings HM804846

Pinion Bearing, Tapered Cone, 1.875 in. I.D., Cadillac, Chevrolet, GMC, Dodge, Oldsmobile, Pontiac, Each

Part Number: TMK-HM804846

Not Yet Reviewed

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ACDelco GM Genuine Parts Backup Light Switches 24298931

Neutral Safety and Backup Light Switches, GM Genuine Parts Backup Light Switches, Steel/Plastic, Cadillac, Chevy, GMC, Hummer, Isuzu, Oldsmobile, Each

Part Number: ADO-24298931

Not Yet Reviewed

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National Bearing Automatic Transmission Selector Shaft Seals 8792S

Seal, Automatic Transmission Shift Shaft, Steel/Rubber, GM, Each

Part Number: NTL-8792S

3.67 out of 5 stars ( 3 )

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B&M Street and Strip Transmissions 118002BM

Automatic Transmission, Street and Strip, Automatic Valve Body, Forward Shift Pattern, Chevy, GMC, 4L80E, RWD

Part Number: BMM-118002

3.29 out of 5 stars ( 7 )

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Cardone New Transfer Case Motors 83-113

Transfer Case Motors, New, Rectangular 8-Pin Plug, Chevy, GMC, Dodge, Each

Part Number: AAZ-83-113

4.0 out of 5 stars ( 4 )

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TCI Replacement Steel Transmission Pans 378011

Automatic Transmission Pan, Stock, Steel, Chrome, GM, 700R4, 4L60E, Each

Part Number: TCI-378011

4.67 out of 5 stars ( 3 )

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Yukon Gear & Axle U-Joints YUJ178

U-Joint, Spicer 1350 Universal Joint Style, Greasable, Steel, Round Plain Bearing Caps, AMC, Buick, Chevrolet, Dodge, Ford, GMC, Jeep, Pontiac, Each

Part Number: YGA-42010

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