BAER 13" Rear SS4 Brake System for 07-18 JK Wrangler


  • Brand: BAER Brake Systems
  • Availability: In Stock
  • Part Number: 4402007R

This system features the S4 4-piston caliper mounted to a 13" x .810", 1 piece, slot/drill/zinc plated vented rotor. The S4 caliper has dust and weather seals and uses the popular DR1-C or HB100 pad type. Caliper brackets incorporate Baer's unique Verislide design and includes all brackets and mounting hardware. This system fits most 17” or larger wheels.

| Why Purchase the SS4?

  • 1-piece directionally vaned rotor
  • Perfect match for our Track4 front brake system
  • 4-piston (S4) caliper that offers a piston area comparable to many 6-piston calipers
  • 13" rotors will fit some 16" and most 17" wheels (verify with a template)
  • Standard colors are Red, Black or Silver


| The S4 Caliper Features:

  • 4-piston, 2-piece design with 4, 10mm cross bolts for maximum stiffness
  • Stainless steel abutments and noise suppression springs
  • Hard anodized aluminum pistons
  • Internal crossover design
  • Dual seals (dust/weather and pressure) 
  • Uses a common 4 piston pad for easy replacements
  • Red, Black or Silver Powder Coat Finish (custom colors available)
  • Machined logo that is hand painted
  • Uses banjo style fittings, Baer does not use any pipe thread
  • 100% MADE IN USA with US sourced material


Product Specifications:

  • Rotor Size/Type13" x .810" ,  1-piece, 
  • Replacement Rotor Rings: 6911145 (Left) / 6921145 (Right)
  • Caliper/Piston Count/Mount Type: S4 / 4-piston / Lug
  • Replacement Pads: DR1-C 
  • Minimum Wheel Size: 17" (Use template to verify fitment (Fitment Templete / Templete Instructions)
  • Includes: Calipers, Brake pads, Rotors, Brackets and system hardware. System incorporates Baer's unique Verislide design allowing the calipers to float with the factory c-clip axles.
  • Notes: Designed to be used with stock 2007-17 Jeep JK, OE rear end and axles. Does not include brake hoses. Re-uses factory park brake.
  • Applications:
    2007-18 Jeep Wrangler (JK)
    2018-Current Jeep Wrangler (JL)
    2020-Current Jeep Gladiator (JT)

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