Wilwood Red SX6R 6-Piston Left Caliper, 1.25-Inch Rotor Width

SKU: 120-14861-RD

$877.56 Sale
Shipping calculated at checkout.

Fitment questions?

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

Product details

The 9.84-inch radial pattern identifies the attachment layout of this Wilwood SX6R. This left-hand red caliper has 6 pistons, 1.75/1.38/1.38-inch bores and a 1.25-inch nominal rotor-width specification. Wilwood Engineering’s disc brake range includes calipers, rotors, master cylinders, valves, fittings and brake lines. Bill Wood founded the company in 1977 in California; it is based in Camarillo and serves motorsport, street-performance and specialized brake applications.

Technical Details

  • Manufacturer part number: 120-14861-RD
  • Component: Wilwood SX6R; one caliper
  • Pad shape: Wilwood type D1792; compound selected separately
  • Rotor width: 1.25-inch nominal; 1.10–1.28-inch permitted range
  • Rotor diameter range: 12.88–15.00 inches
  • Mounting: Left hand; Radial; 9.84-inch centers; 0.52-inch mounting holes
  • Piston arrangement: 6 pistons; 1.75/1.38/1.38-inch bores; stainless steel
  • Hydraulic piston area: 5.40 square inches, as specified by Wilwood
  • Fluid inlet: 1/8-27 NPT
  • Body and finish: Forged aluminum; Red Powder Coat
  • Dust boots: No

SX6R calipers combine six differential-bore pistons with dust wipers and a 9.84-inch radial mounting pattern. The D1792 pad outline and body envelope differ from smaller radial calipers, even when rotor thickness is similar.

Fitment & Compatibility

Measure the available space at both sides of the rotor, including its hat. Confirm mounting geometry and piston area; rotor width by itself cannot establish a complete brake package.

This listing covers one caliper. Match the brake pads, rotor, hose and mounting arrangement to the complete brake system.

PMB Performance’s team has over 20 years of experience with brake components and fitment. We can help review this caliper against the dimensions and hydraulic requirements of your brake system.