RIDEX 78B0423 Brake Caliper

Compatible with AUDI Q5 (8RB) , AUDI A5 (8T3) , AUDI A5 Sportback (8TA) Show more info
High-quality brake caliper designed for reliable performance and safe braking. Ensures optimal stopping power for your vehicle.
72.09 EUR
inc. VAT 21%
In stock 1
Delivery 1 day (19.03.2026)
PN 78B0423
Make RIDEX
EAN 4059191679157

This RIDEX brake caliper, part number 78B0423, is engineered to meet stringent quality standards, providing dependable braking functionality. It is a crucial component of your vehicle's braking system, responsible for applying pressure to the brake pads against the rotor to slow or stop the vehicle. The caliper is constructed from durable materials to withstand the demanding conditions of braking, including heat and pressure. Its precise design ensures a perfect fit and seamless integration with your vehicle's existing brake system, facilitating straightforward installation. Choosing a quality brake caliper like the RIDEX 78B0423 is essential for maintaining vehicle safety and driving confidence. It contributes to consistent braking performance, reducing stopping distances and ensuring a responsive feel at the brake pedal.

  • Direct replacement for original equipment.
  • Manufactured to OE specifications for fit and function.
  • Durable construction for long-lasting performance.
  • Ensures reliable and consistent braking.
  • Designed to withstand high temperatures and pressures.
  • Easy installation.
  • Part number: 78B0423
  • Brand: RIDEX
Installation side
Rear axle on the left side
Brake caliper piston diameter [mm]
43
Brake caliper type
Brake caliper with an adjusting element for the electric parking brake
Distance between mounting holes [mm]
144
Material
Cast iron
Vehicle equipment
vehicles with an electric parking brake
  • AUDI
    • Q5 (8RB)
      • 2.0 TFSI Hybrid quattro (180kW/245PS)
      • 2.0 TDI (100kW/136PS)
      • 2.0 TDI (105kW/143PS)
      • 2.0 TFSI quattro (155kW/211PS)
      • 2.0 TDI quattro (125kW/170PS)
      • 3.0 TDI quattro (176kW/240PS)
      • 3.2 FSI quattro (199kW/270PS)
      • 2.0 TFSI quattro (132kW/180PS)
      • 2.0 TDI quattro (105kW/143PS)
      • 2.0 TDI quattro (120kW/163PS)
      • 3.0 TDI quattro (155kW/211PS)
      • 3.0 TDI quattro (180kW/245PS)
      • 2.0 TDI quattro (130kW/177PS)
      • SQ5 TDI quattro (230kW/313PS)
      • 2.0 TFSI quattro (165kW/224PS)
      • 3.0 TFSI quattro (200kW/272PS)
      • 2.0 TFSI quattro (162kW/220PS)
      • 2.0 TDI (110kW/150PS)
      • 2.0 TDI quattro (110kW/150PS)
      • 2.0 TDI quattro (140kW/190PS)
      • 3.0 TDI quattro (190kW/258PS)
      • SQ5 TFSI quattro (260kW/354PS)
      • 3.0 TDI quattro (184kW/250PS)
      • SQ5 TDI quattro (240kW/326PS)
      • 2.0 TFSI quattro (169kW/230PS)
      • SQ5 TDI quattro (250kW/340PS)
      • 2.0 TDI (140kW/190PS)
    • A5 (8T3)
      • 2.0 TDI (130kW/177PS)
      • 3.0 TDI (150kW/204PS)
      • 3.0 TDI quattro (180kW/245PS)
      • 1.8 TFSI (125kW/170PS)
      • 3.2 FSI (195kW/265PS)
      • 2.7 TDI (140kW/190PS)
      • 3.0 TDI quattro (176kW/240PS)
      • 2.0 TDI quattro (130kW/177PS)
      • 3.0 TFSI quattro (200kW/272PS)
      • 3.2 FSI quattro (195kW/265PS)
      • 2.0 TFSI (132kW/180PS)
      • 2.0 TFSI (155kW/211PS)
      • 2.0 TFSI quattro (155kW/211PS)
      • 2.7 TDI (120kW/163PS)
      • 3.0 TDI quattro (155kW/211PS)
      • 2.0 TDI (125kW/170PS)
      • 2.0 TDI quattro (125kW/170PS)
      • 1.8 TFSI (118kW/160PS)
      • 2.0 TDI (120kW/163PS)
      • 2.0 TFSI (165kW/224PS)
      • 2.0 TFSI quattro (165kW/224PS)
      • 2.0 TDI (140kW/190PS)
      • 2.0 TDI quattro (140kW/190PS)
      • 2.0 TFSI quattro (162kW/220PS)
      • 1.8 TFSI (130kW/177PS)
      • 3.0 TDI quattro (160kW/218PS)
      • 2.0 TFSI quattro (169kW/230PS)
      • 2.0 TFSI (169kW/230PS)
    • A5 Sportback (8TA)
      • 2.0 TDI (130kW/177PS)
      • 3.0 TDI (150kW/204PS)
      • 3.0 TDI quattro (180kW/245PS)
      • 1.8 TFSI (125kW/170PS)
      • 3.0 TFSI quattro (200kW/272PS)
      • 2.0 TDI quattro (130kW/177PS)
      • 2.0 TFSI (132kW/180PS)
      • 2.0 TFSI quattro (155kW/211PS)
      • 3.2 FSI quattro (195kW/265PS)
      • 2.0 TDI (125kW/170PS)
      • 2.7 TDI (140kW/190PS)
      • 3.0 TDI quattro (176kW/240PS)
      • 2.0 TDI (120kW/163PS)
      • 1.8 TFSI (118kW/160PS)
      • 2.0 TFSI (155kW/211PS)
      • 2.0 TDI (100kW/136PS)
      • 2.0 TDI (105kW/143PS)
      • 2.0 TDI quattro (125kW/170PS)
      • 2.0 TFSI (165kW/224PS)
      • 2.0 TFSI quattro (165kW/224PS)
      • 2.0 TDI (110kW/150PS)
      • 2.0 TDI (140kW/190PS)
      • 2.0 TDI quattro (140kW/190PS)
      • 1.8 TFSI (106kW/144PS)
      • 1.8 TFSI (130kW/177PS)
      • 3.0 TDI quattro (160kW/218PS)
      • 2.0 TFSI (169kW/230PS)
      • 2.0 TFSI quattro (169kW/230PS)
    • A5 Kabriolets (8F7)
      • 2.0 TDI (130kW/177PS)
      • 3.0 TDI (150kW/204PS)
      • 3.0 TDI quattro (180kW/245PS)
      • 1.8 TFSI (125kW/170PS)
      • 2.0 TDI (105kW/143PS)
      • 2.0 TDI quattro (130kW/177PS)
      • 3.0 TFSI quattro (200kW/272PS)
      • 2.0 TFSI (132kW/180PS)
      • 2.0 TFSI (155kW/211PS)
      • 2.0 TFSI quattro (155kW/211PS)
      • 3.2 FSI (195kW/265PS)
      • 3.2 FSI quattro (195kW/265PS)
      • 2.7 TDI (140kW/190PS)
      • 3.0 TDI quattro (176kW/240PS)
      • 2.0 TDI (125kW/170PS)
      • 2.0 TDI (120kW/163PS)
      • 1.8 TFSI (118kW/160PS)
      • 2.0 TDI (110kW/150PS)
      • 2.0 TFSI (165kW/224PS)
      • 2.0 TFSI quattro (165kW/224PS)
      • 2.0 TDI (140kW/190PS)
      • 2.0 TDI quattro (140kW/190PS)
      • 2.0 TFSI (162kW/220PS)
      • 1.8 TFSI (130kW/177PS)
      • 3.0 TDI quattro (160kW/218PS)
      • 2.0 TFSI (169kW/230PS)
      • 2.0 TFSI quattro (169kW/230PS)
    • A4 Allroad B8 (8KH)
      • 2.0 TDI quattro (130kW/177PS)
      • 3.0 TDI quattro (180kW/245PS)
      • 2.0 TFSI quattro (155kW/211PS)
      • 2.0 TDI quattro (125kW/170PS)
      • 3.0 TDI quattro (176kW/240PS)
      • 2.0 TDI quattro (105kW/143PS)
      • 2.0 TDI quattro (100kW/136PS)
      • 2.0 TDI quattro (120kW/163PS)
      • 2.0 TFSI quattro (162kW/220PS)
      • 2.0 TFSI quattro (165kW/224PS)
      • 2.0 TDI quattro (110kW/150PS)
      • 2.0 TDI quattro (140kW/190PS)
    • A4 B8 (8K2)
      • 1.8 TFSI (125kW/170PS)
      • 1.8 TFSI quattro (125kW/170PS)
      • 3.0 TFSI quattro (200kW/272PS)
      • 2.0 TDI (130kW/177PS)
      • 2.0 TDI quattro (130kW/177PS)
      • 3.0 TDI quattro (180kW/245PS)
      • 3.0 TDI (150kW/204PS)
      • 1.8 TFSI (118kW/160PS)
      • 3.2 FSI quattro (195kW/265PS)
      • 2.0 TDI (105kW/143PS)
      • 2.7 TDI (140kW/190PS)
      • 3.0 TDI quattro (176kW/240PS)
      • 2.0 TDI (100kW/136PS)
      • 1.8 TFSI (88kW/120PS)
      • 2.0 TDI (125kW/170PS)
      • 2.0 TDI quattro (125kW/170PS)
      • 2.0 TDI (88kW/120PS)
      • 2.0 TFSI (132kW/180PS)
      • 2.0 TFSI (155kW/211PS)
      • 2.0 TFSI quattro (155kW/211PS)
      • 1.8 TFSI quattro (118kW/160PS)
      • 2.0 TDI (120kW/163PS)
      • 3.0 TDI quattro (155kW/211PS)
      • 3.2 FSI (195kW/265PS)
      • 2.0 TDI quattro (105kW/143PS)
      • 2.0 TFSI flexible fuel (132kW/180PS)
      • 2.0 TFSI flexible fuel quattro (132kW/180PS)
      • 2.0 TFSI quattro (165kW/224PS)
      • 2.0 TFSI (165kW/224PS)
      • 2.0 TDI (110kW/150PS)
      • 2.0 TDI quattro (110kW/150PS)
      • 2.0 TDI (140kW/190PS)
      • 2.0 TDI quattro (140kW/190PS)
    • A4 B8 Avant (8K5)
      • 1.8 TFSI (125kW/170PS)
      • 1.8 TFSI quattro (125kW/170PS)
      • 3.0 TFSI quattro (200kW/272PS)
      • 2.0 TDI (130kW/177PS)
      • 2.0 TDI quattro (130kW/177PS)
      • 3.0 TDI quattro (180kW/245PS)
      • 3.0 TDI (150kW/204PS)
      • 1.8 TFSI (118kW/160PS)
      • 3.2 FSI quattro (195kW/265PS)
      • 2.0 TDI (105kW/143PS)
      • 3.0 TDI quattro (176kW/240PS)
      • 2.0 TDI (125kW/170PS)
      • 2.7 TDI (120kW/163PS)
      • 2.0 TFSI (155kW/211PS)
      • 1.8 TFSI (88kW/120PS)
      • 2.0 TFSI (132kW/180PS)
      • 2.0 TFSI quattro (155kW/211PS)
      • 1.8 TFSI quattro (118kW/160PS)
      • 2.0 TDI (100kW/136PS)
      • 2.0 TDI quattro (125kW/170PS)
      • 2.7 TDI (140kW/190PS)
      • 2.0 TDI (88kW/120PS)
      • 2.0 TDI (120kW/163PS)
      • 3.2 FSI (195kW/265PS)
      • 2.0 TDI quattro (105kW/143PS)
      • 2.0 TFSI flexible fuel (132kW/180PS)
      • 2.0 TFSI flexible fuel quattro (132kW/180PS)
      • 3.0 TDI quattro (155kW/211PS)
      • 2.0 TFSI (165kW/224PS)
      • 2.0 TFSI quattro (165kW/224PS)
      • 2.0 TDI (110kW/150PS)
      • 2.0 TDI quattro (110kW/150PS)
      • 2.0 TDI (140kW/190PS)
      • 2.0 TDI quattro (140kW/190PS)
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