Wilwood front AERO6 kit components for GM K-Series/Blazer/Jimmy 6-Lug 4x4, red calipers and 15-inch srp drilled and slotted rotors
Wilwood front AERO6 assembly for GM K-Series/Blazer/Jimmy 6-Lug 4x4, red caliper and 15-inch srp drilled and slotted rotor
Wilwood front AERO6 kit components for GM K-Series/Blazer/Jimmy 6-Lug 4x4, red calipers and 15-inch srp drilled and slotted rotors
Wilwood front AERO6 assembly for GM K-Series/Blazer/Jimmy 6-Lug 4x4, red caliper and 15-inch srp drilled and slotted rotor

Wilwood Front Red SRP Conversion — 15-Inch AERO6 Brakes for GM Six-Lug 4x4 (1971–1991)

SKU: 140-18157-DR

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Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.

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Product details

Red AERO6 calipers and 15-inch SRP rotors identify this front brake conversion for compatible GM K-series, Blazer and Jimmy applications. Confirm sufficient wheel space before undertaking the required hub stud-hole modification. Founded in 1977 by Bill Wood and based in Camarillo, California, Wilwood Engineering designs and manufactures disc brake systems and components for motorsport, street-performance and specialized applications. Its range includes calipers, brake rotors, master cylinders, valves, fittings and brake lines, selected to work together within a properly matched brake system.

Technical Details

  • Manufacturer part number: 140-18157-DR
  • Service calipers: AERO6; 6 pistons; radial mount; Red Powder Coat
  • Brake rotors: 15.00 x 1.25 inches; Spec-37 Iron; SRP Drilled & Slotted; vented construction
  • Pads: BP-10; piston material: Stainless
  • Caliper body material: Forged aluminum
  • Hydraulic inlet: 1/8-27 NPT
  • Rotor/hat wheel-stud clearance pattern(s): 6 x 5.5 in; 6 x 139.7 mm; match the installed hub/axle pattern
  • Hydraulic brake hoses: not included; select the correct application-specific lines/fittings
  • Wheel clearance: 19-inch wheels may fit; verify the manufacturer’s complete caliper/rotor template for the installed wheel
  • Supplied as one kit with mounting hardware; spindles, hubs, master cylinder and booster are not included

Fitment & Compatibility

Allow for the 15-inch rotor and AERO6 caliper when assessing a listed GM six-lug 4x4 front application. Nominal 19-inch wheels still need a template check. The application table covers selected K-series pickups/Suburbans, Blazer/K5 Blazer and Jimmy vehicles across 1971–1991, with model-specific start and end years.

Follow DS1672 for the hub wheel-stud-hole modification and check the complete hydraulic arrangement. Wilwood recommends a 15/16-inch master cylinder with the factory vacuum booster and pedal; the 1.12-inch original bore causes very high pedal effort and is not recommended. If the rear axle still has drum brakes, include the recommended 10-pound residual valve and a proportioning valve in that circuit. Hydraulic hoses must be purchased separately.

Confirm the applicable vehicle entry and all numbered notes in the fitment table below.

Manufacturer Resources

WARNING: This product can expose you to chemicals including Arsenic, Cadmium, Chromium (Hexavalent compounds), Lead, Nickel, Cobalt and Antimony Trioxide which are known to the State of California to cause cancer or other reproductive harm. For more information go to www.p65warnings.ca.gov.

With over 20 years of parts and fitment experience, PMB Performance can help review the intended brake installation. Provide your VIN, wheel measurements and any modified axle or spindle details when asking about compatibility.

Vehicle Applications

Years Make Model Model option Front brakes Rear brakes Kit application Notes
1971-1974, 1987-1991 Chevrolet Blazer 4 x 4 Disc Drum Front Kit 1, 2, 3, 4, 5
1971-1991 GMC Jimmy 4 x 4 Disc Drum Front Kit 1, 2, 3, 4, 5
1971-1974 GMC K15/K1500 Pickup 4 x 4 Disc Drum Front Kit 1, 2, 3, 4, 5
1971-1974 GMC K15/K1500 Suburban 4 x 4 Disc Drum Front Kit 1, 2, 3, 4, 5
1975-1986 Chevrolet K10 4 x 4 Disc Drum Front Kit 1, 2, 3, 4, 5
1975-1986 Chevrolet K10 Suburban 4 x 4 Disc Drum Front Kit 1, 2, 3, 4, 5
1975-1986 Chevrolet K5 Blazer 4 x 4 Disc Drum Front Kit 1, 2, 3, 4, 5
1975-1978 GMC K15 4 x 4 Disc Drum Front Kit 1, 2, 3, 4, 5
1975-1978 GMC K15 Suburban 4 x 4 Disc Drum Front Kit 1, 2, 3, 4, 5
1979-1986 GMC K1500 4 x 4 Disc Drum Front Kit 1, 2, 3, 4, 5
1979 GMC K1500 Suburban 4 x 4 Disc Drum Front Kit 1, 2, 3, 4, 5
1980-1986 GMC K1500 Suburban 4 x 4 Disc Drum Front Kit 1, 2, 3, 4, 5

Application Notes

  1. Caution: A 15/16” bore master cylinder is recommended for proper brake function when installing this brake kit with the factory brake pedal and vacuum booster.
  2. Wilwood offers a 15/16” bore tandem master cylinder suitable for this application, p/n 260-18184
  3. Using the OE 1.12” bore master cylinder is not recommended and will require very high pedal effort to stop the vehicle.
  4. Line kit included (manufacturer): None
  5. Front line-kit reference: 220-18356