Front Brake Rotor for 1971-1986 Chevy K20 & GMC K25/K2500 4x4 Trucks and Suburban – OE Replacement

Keep your classic Chevrolet K20 or GMC K25/K2500 4x4 truck stopping with confidence with this brand-new OE replacement front brake rotor. Designed as a direct replacement for factory applications, this rotor delivers the proper fit, durability, and braking performance needed for classic GM trucks, workhorses, and restorations.

Whether you are replacing worn-out factory rotors on a Chevy K20 Pickup, K20 Suburban, GMC K25, or GMC K2500, this premium cast iron rotor is engineered to restore dependable front braking performance without modifications.

Unlike used, resurfaced, or remanufactured rotors, this is a 100% brand-new replacement rotor, providing consistent thickness, precise machining, and reliable performance right out of the box.

Built for Classic GM 4x4 Trucks

These front brake rotors are designed specifically for heavy-duty GM truck applications, including the popular Chevrolet K20 4WD, GMC K25 4WD, and K2500 4x4 Suburban models. They are ideal for restorations, daily drivers, farm trucks, trail rigs, and classic truck builds where dependable braking is essential.

Product Features:

• Brand New OE Replacement Brake Rotor
• Direct-fit replacement – no modifications required
• Fits front left or right side applications
• Premium cast iron construction
• Vented design improves cooling and heat dissipation
• Non-directional braking surface for smooth pad engagement
• Designed for factory-style braking performance
• Rotor only – does not include hub, bearings, or hardware

Brake Rotor Specifications

• Rotor Diameter: 12.50" (317.5 mm)
• Nominal Thickness: 1.29" (32.8 mm)
• Discard Thickness: 1.21" (30.86 mm)
• Overall Height: 2.80" (71 mm)
• Center Hole Diameter: 5.13" (130.2 mm)
• Bolt Circle Diameter: 6.50" (165.1 mm)
• Mounting Bolt Hole Quantity: 8
• Mounting Bolt Hole Diameter: 0.65" (16.5 mm)
• Material: Cast Iron
• Construction: Full Cast
• Rotor Type: Vented
• Brake Surface: Non-Directional
• Cross Drilled: No
• Slotted: No
• ABS Tone Ring: No
• Rust Resistant Coating: No

Direct Replacement Front Brake Rotor Applications

Chevrolet Applications

Chevrolet K20 Pickup 4x4

• 1975-1986 Chevrolet K20 Front Brake Rotor
• Front Disc Brake Rotor Replacement
• Rotor Only

Chevrolet K20 Suburban 4x4

• 1972-1986 Chevrolet K20 Suburban Front Brake Rotor
• Front Disc Brake Rotor Replacement
• Rotor Only

GMC Applications

GMC K25 Pickup 4x4

• 1971-1974 GMC K25 Pickup Front Brake Rotor
• 1975-1978 GMC K25 Front Brake Rotor
• Front Disc Brake Rotor Replacement
• Rotor Only

GMC K2500 Pickup 4x4

• 1979-1986 GMC K2500 Front Brake Rotor
• Front Disc Brake Rotor Replacement
• Rotor Only

GMC K25/K2500 Suburban 4x4

• 1971-1974 GMC K25 Suburban Front Brake Rotor
• 1975-1978 GMC K25 Suburban Front Brake Rotor
• 1979-1986 GMC K2500 Suburban Front Brake Rotor
• Front Disc Brake Rotor Replacement
• Rotor Only

The Pirate Jack Difference

For more than 20 years, Pirate Jack has helped classic truck owners, restorers, and enthusiasts keep their vehicles safe and road-ready with quality brake components.

Every component we offer is selected with fitment, reliability, and real-world performance in mind. Whether you're restoring a square body Chevy K20, maintaining a GMC K2500 Suburban, or upgrading a classic 4x4 truck, Pirate Jack provides the dependable brake parts you need to keep your build moving with confidence.

Replace worn factory rotors with a brand-new OE replacement designed specifically for your classic GM 4x4 truck.