2003 GMC SIERRA 1500 HD Fittings & Hoses

Brake Lines, Street Legal, Braided Stainless Steel, Chevy, GMC, Kit

Part Number: RUS-672440

4.18 out of 5 stars ( 45 )

Estimated Ship Date: Today

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Brake Lines, Street Legal, Braided Stainless Steel, Models with a 4.00 in. to 6.00 in Lift, Chevy, GMC, Kit

Part Number: RUS-695770

4.82 out of 5 stars ( 11 )

Estimated Ship Date: Today

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Engine Oil Cooler Line

Part Number: RNB-625-168XD

2.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Engine Coolant Crossover, Tube, Adjustable from 6.8 in. to 10.5 in., -12AN O-Ring Ports, Billet Aluminum, Black Anodized, Chevrolet, LS, Each

Part Number: EAR-LS0037ERL

Not Yet Reviewed

Estimated Ship Date: Today

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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 26, 2026 if ordered today

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Electric Water Pump Port Adapters, Billet Aluminum, Black Anodized, Four -12AN Female Ports, Gaskets, Bolts, Chevrolet, LS, Pair

Part Number: EAR-LS0022ERL

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Estimated Ship Date: Mar 27, 2026 if ordered today

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Copper Nickel Brake Line Kit

Part Number: OPS-CN-179

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Brake Lines, Pre-Bent, Steel, Natural, Crew Cab Short Bed, Chevy, GMC, Kit

Part Number: RSD-TBS2605

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Estimated Ship Date: Feb 27, 2026 if ordered today

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Fluid Cooler Lines, Transmission Cooler Lines, Stainless Steel, Chevy, GMC, Pair

Part Number: FNL-TTC0405SS

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Estimated Ship Date: Feb 24, 2026 if ordered today

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Stainless Steel Brake Line Kit

Part Number: OPS-SS-179

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Water Pump Adapters, Billet Aluminum, Black Anodized, Chevrolet, Big Block Electric Pump to LS Engine, Pair

Part Number: EAR-LS0025ERL

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 24, 2026 if ordered today

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Fluid Cooler Lines, Transmission Cooler Lines, Stainless Steel, Chevy, GMC, Pair

Part Number: FNL-TTC0401SS

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Estimated Ship Date: Feb 24, 2026 if ordered today

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