2003 GMC SIERRA 1500 HD Dorman Fittings & Hoses

Brake Line Retaining Clips, Brake Hose Locks, Steel, Natural, Set of 4

Part Number: DHB-HW1457

4.62 out of 5 stars ( 13 )

Estimated Ship Date: Tomorrow

Heater Hose Connector, Steel, Natural, 3/4 in. Female Quick-Connect, 5/8 in. Hose Barb, Each

Part Number: RNB-800-409HP

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Engine Oil Cooler Line

Part Number: RNB-625-168XD

2.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

• Free Shipping

Fitting, Brake Hose Bolt, Banjo, Steel, Zinc, 10mm x 1.5,, Each

Part Number: RNB-13940

4.75 out of 5 stars ( 12 )

Estimated Ship Date: Tomorrow

Oil Cooler Lines, Supply and Return, Cadillac, Chevy, GMC, Kit

Part Number: RNB-625-168

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

• Oversize $7.99

Fitting, Transmission Cooler Line Connector, Steel, 3/8 NPT Male Threads, Quick-connect, Cadillac, Chevy, GMC

Part Number: RNB-800-606

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Speed Bleeder Screws, 10mm x 1.50 Thread, 33mm Length, Pair

Part Number: RNB-12702

3.93 out of 5 stars ( 14 )

Estimated Ship Date: Tomorrow

Trans. Line Connector, Brass, Each

Part Number: RNB-800-604

3.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

Brake Bleeders, Replacement, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Pair

Part Number: RNB-13908

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

Front Wiper Hose

Part Number: RNB-924-379

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Drop Ship
• Special Order

Heater Hose Connector, Plastic, Black, 3/4 in. Female Quick-Connect, 5/8 in. Hose Barb, Each

Part Number: RNB-800-409

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

Heater Hose, Replacement Surge Tank Hose, 38.00 in. Length, Rubber, Black, Cadillac, Chevy, GMC, Each

Part Number: RNB-626-111

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Brake Lines, Hydraulic, Front and Rear, Stainless Steel, Natural, Chevy, GMC, Kit

Part Number: RNB-919-129

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Feb 25, 2026 if ordered today

• Drop Ship
• Oversize $7.99
• Special Order

Brake Line, Rubber, Rear, Chevy, GMC, Each

Part Number: DHB-H381272

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Air Conditioning Service Port Adapter, Aluminum, Schrader Valve, 12mm x 1.50 Threads, Buick, Cadillac, Chevy, GMC, Pontiac, Oldsmobile, Hummer, Each

Part Number: RNB-800-955

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Crush Washers, 10.30mm Hole Size, 16.91mm O.D., 1.2mm Thickness, Copper, Natural, Pair

Part Number: RNB-66223

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Automatic Transmission Cooler Line, Cadillac, Chevy, GMC, Each

Part Number: RNB-624-118

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

• Oversize $7.99

Crush Washers, 10.30mm I.D., 16.91mm O.D., 1.2mm Thick, Copper, Natural, Set of 10

Part Number: RNB-484-180

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

Automatic Transmission Cooler Line, Each

Part Number: RNB-624-069

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Drop Ship
• Special Order

Brake Line, Rubber, Driver Side Front, Chevy, GMC, Hummer, Each

Part Number: DHB-H620051

3.25 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

Heater Hose Conntor

Part Number: RNB-800-917HP

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Drop Ship
• Special Order

Fuel Line

Part Number: RNB-904-015

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Hoses, Heater, Stock, Rubber, Natural, Cadillac, Chevy, GMC, Hummer, without Auxiliary Heater, Each

Part Number: RNB-626-557

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Drop Ship
• Oversize $7.99
• Special Order

Brake Line, Rubber, Passenger Side Front, Chevy, GMC, Hummer, Each

Part Number: DHB-H620052

2.5 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

Fuel Line

Part Number: RNB-904-016

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Drop Ship
• Special Order