RIDEX 78B0021 Brake Caliper

Compatible with AUDI A4 B5 (8D2) , AUDI A4 B5 Avant (8D5) , VW PASSAT B5 (3B2) Show more info
High-quality brake caliper designed for reliable performance. Ensures consistent and safe braking for your vehicle.
30.88 EUR
inc. VAT 21%
In stock 2
Delivery 1 day (24.03.2026)
PN 78B0021
Make RIDEX
EAN 4059191260416

This RIDEX brake caliper, part code 78B0021, is engineered to meet stringent quality standards, providing dependable stopping power. Crafted with precision, it ensures optimal contact with brake pads and rotors, contributing to efficient braking and vehicle safety. Its robust construction is designed to withstand the demanding conditions of daily driving. Replacing worn or damaged brake calipers is crucial for maintaining your vehicle's braking system integrity. This caliper offers a direct fit for compatible models, simplifying the replacement process.

  • Direct replacement for original equipment
  • Ensures reliable and consistent braking performance
  • Durable construction for longevity
  • Designed to meet OE specifications
  • Restores proper brake function
  • Easy installation
Installation side
Front axle
Material
Cast iron
Brake caliper type
Brake caliper (1 piston)
Diameter [mm]
57
brake disc with a thickness of [mm]
+25
brake disc with a diameter [mm]
282
brake disc with a diameter [mm]
288
brake disc with a diameter [mm]
312
brake disc with a diameter [mm]
314
Installation side
Front axle on the left
Additional article/Additional information
without bracket
  • AUDI
    • A4 B5 (8D2)
      • 1.8 T (110kW/150PS)
      • 2.6 (110kW/150PS)
      • 2.8 (128kW/174PS)
      • 1.8 T quattro (110kW/150PS)
      • 2.6 quattro (110kW/150PS)
      • 2.8 quattro (128kW/174PS)
      • 1.9 TDI (81kW/110PS)
      • 2.8 (142kW/193PS)
      • 2.8 quattro (142kW/193PS)
      • 1.9 TDI quattro (81kW/110PS)
      • 2.4 (121kW/165PS)
      • 2.4 quattro (121kW/165PS)
      • 2.5 TDI (110kW/150PS)
      • 2.5 TDI quattro (110kW/150PS)
      • 1.9 TDI (85kW/116PS)
      • 1.8 T quattro (132kW/180PS)
      • 1.8 T (132kW/180PS)
      • 1.9 TDI quattro (85kW/116PS)
      • 2.4 (120kW/163PS)
      • 2.4 quattro (120kW/163PS)
      • 2.8 quattro (140kW/190PS)
      • 2.6 (102kW/139PS)
      • 2.8 (140kW/190PS)
    • A4 B5 Avant (8D5)
      • 1.8 (92kW/125PS)
      • 1.8 T (110kW/150PS)
      • 2.6 (110kW/150PS)
      • 1.9 TDI (81kW/110PS)
      • 1.8 T quattro (110kW/150PS)
      • 2.6 quattro (110kW/150PS)
      • 2.8 (142kW/193PS)
      • 2.8 quattro (142kW/193PS)
      • 1.9 TDI quattro (81kW/110PS)
      • 2.4 (121kW/165PS)
      • 2.4 quattro (121kW/165PS)
      • 2.5 TDI (110kW/150PS)
      • 2.5 TDI quattro (110kW/150PS)
      • 1.9 TDI (85kW/115PS)
      • 1.8 T quattro (132kW/180PS)
      • 1.8 T (132kW/180PS)
      • 1.9 TDI quattro (85kW/115PS)
      • 2.4 (120kW/163PS)
      • 2.4 quattro (120kW/163PS)
    • A6 C5 (4B2, 4B4)
      • 1.8 T (110kW/150PS)
      • 1.8 T quattro (110kW/150PS)
      • 2.4 (121kW/165PS)
      • 2.4 quattro (121kW/165PS)
      • 1.9 TDI (81kW/110PS)
      • 2.5 TDI (110kW/150PS)
      • 2.8 (142kW/193PS)
      • 2.8 quattro (142kW/193PS)
      • 2.5 TDI quattro (110kW/150PS)
      • 1.8 (92kW/125PS)
      • 2.7 T quattro (169kW/230PS)
      • 1.8 T quattro (132kW/180PS)
      • 2.4 (100kW/136PS)
      • 3.7 (191kW/260PS)
      • 4.2 quattro (220kW/299PS)
      • 1.8 T (132kW/180PS)
      • S6 quattro (250kW/340PS)
      • 2.5 TDI (132kW/180PS)
      • 2.5 TDI quattro (132kW/180PS)
      • 1.9 TDI (85kW/115PS)
      • 2.8 (132kW/180PS)
      • 2.8 (140kW/190PS)
      • 2.4 (115kW/156PS)
      • 2.0 (96kW/130PS)
      • 3.0 (162kW/220PS)
      • 3.0 quattro (162kW/220PS)
      • 2.4 (125kW/170PS)
      • 2.4 quattro (125kW/170PS)
      • 2.5 TDI (114kW/155PS)
      • 1.9 TDI (96kW/130PS)
      • 2.4 (120kW/163PS)
      • 2.4 quattro (120kW/163PS)
      • 2.5 TDI (120kW/163PS)
      • 2.4 quattro (115kW/156PS)
      • 2.8 quattro (140kW/190PS)
      • 3.0 (160kW/218PS)
    • A6 C5 Avant (4B5, 4B6)
      • 1.9 TDI (81kW/110PS)
      • 1.8 (92kW/125PS)
      • 2.8 quattro (142kW/193PS)
      • 1.8 T (110kW/150PS)
      • 2.4 (121kW/165PS)
      • 2.8 (142kW/193PS)
      • 1.8 T quattro (110kW/150PS)
      • 2.4 quattro (121kW/165PS)
      • 2.5 TDI (110kW/150PS)
      • 2.5 TDI quattro (110kW/150PS)
      • 2.7 T quattro (169kW/230PS)
      • 2.4 (100kW/136PS)
      • 1.8 T quattro (132kW/180PS)
      • 3.7 (191kW/260PS)
      • 4.2 quattro (220kW/299PS)
      • 1.8 T (132kW/180PS)
      • S6 quattro (250kW/340PS)
      • 2.5 TDI (132kW/180PS)
      • 2.5 TDI quattro (132kW/180PS)
      • 1.9 TDI (85kW/115PS)
      • 2.8 (132kW/180PS)
      • 2.8 (140kW/190PS)
      • 2.4 (115kW/156PS)
      • 2.0 (96kW/130PS)
      • 2.4 (125kW/170PS)
      • 2.4 quattro (125kW/170PS)
      • 2.5 TDI (114kW/155PS)
      • 3.0 (162kW/220PS)
      • 3.0 quattro (162kW/220PS)
      • 1.9 TDI (96kW/130PS)
      • 2.4 (120kW/163PS)
      • 2.4 quattro (120kW/163PS)
      • 2.5 TDI (120kW/163PS)
      • 2.4 quattro (115kW/156PS)
      • 3.0 (160kW/218PS)
      • 3.0 quattro (160kW/218PS)
    • A6 C6 (4F2)
      • 3.0 TFSI quattro (220kW/299PS)
      • 2.4 (130kW/177PS)
      • 3.2 FSI (188kW/255PS)
      • 3.2 FSI quattro (188kW/255PS)
      • 2.0 TDI (103kW/140PS)
      • 4.2 quattro (246kW/335PS)
      • 3.0 TDI quattro (165kW/225PS)
      • 3.0 TDI quattro (155kW/211PS)
      • 2.7 TDI (132kW/180PS)
      • 2.7 TDI (120kW/163PS)
      • 2.4 quattro (130kW/177PS)
      • 2.7 TDI quattro (132kW/180PS)
      • 2.0 TFSI (125kW/170PS)
      • 2.0 TDI (100kW/136PS)
      • 2.7 TDI quattro (120kW/163PS)
      • 4.2 FSI quattro (257kW/350PS)
      • 3.0 TDI quattro (171kW/233PS)
      • 2.8 FSI (154kW/210PS)
      • 3.0 quattro (160kW/218PS)
      • 2.8 FSI quattro (154kW/210PS)
      • 2.0 TDI (89kW/121PS)
      • 2.0 TDI (125kW/170PS)
      • 2.7 TDI (140kW/190PS)
      • 2.7 TDI quattro (140kW/190PS)
      • 2.8 FSI (140kW/190PS)
      • 2.8 FSI quattro (140kW/190PS)
      • 2.8 FSI quattro (162kW/220PS)
      • 2.8 FSI (162kW/220PS)
      • 3.0 TDI quattro (176kW/240PS)
      • 3.0 TFSI quattro (213kW/290PS)
    • A6 C6 Avant (4F5)
      • 3.0 TFSI quattro (220kW/299PS)
      • 2.0 TDI (103kW/140PS)
      • 2.7 TDI (120kW/163PS)
      • 3.0 TDI quattro (165kW/225PS)
      • 3.2 FSI (188kW/255PS)
      • 3.2 FSI quattro (188kW/255PS)
      • 4.2 quattro (246kW/335PS)
      • 2.4 (130kW/177PS)
      • 2.4 quattro (130kW/177PS)
      • 3.0 TDI quattro (155kW/211PS)
      • 2.7 TDI (132kW/180PS)
      • 2.7 TDI quattro (132kW/180PS)
      • 2.0 TFSI (125kW/170PS)
      • 2.0 TDI (100kW/136PS)
      • 2.7 TDI quattro (120kW/163PS)
      • 4.2 FSI quattro (257kW/350PS)
      • 3.0 TDI quattro (171kW/233PS)
      • 2.8 FSI (154kW/210PS)
      • 3.0 quattro (160kW/218PS)
      • 2.8 FSI quattro (154kW/210PS)
      • 2.0 TDI (89kW/121PS)
      • 2.0 TDI (125kW/170PS)
      • 2.7 TDI (140kW/190PS)
      • 2.7 TDI quattro (140kW/190PS)
      • 2.8 FSI (140kW/190PS)
      • 2.8 FSI (162kW/220PS)
      • 2.8 FSI quattro (140kW/190PS)
      • 2.8 FSI quattro (162kW/220PS)
      • 3.0 TDI quattro (176kW/240PS)
      • 3.0 TFSI quattro (213kW/290PS)
      • 3.0 (160kW/218PS)
      • 2.0 TDI (120kW/163PS)
    • A4 B6 (8E2)
      • 1.8 T (110kW/150PS)
      • 2.0 (96kW/130PS)
      • 1.8 T quattro (110kW/150PS)
      • 3.0 (162kW/220PS)
      • 3.0 quattro (162kW/220PS)
      • 1.9 TDI (96kW/130PS)
      • 2.5 TDI quattro (132kW/180PS)
      • 1.6 (75kW/102PS)
      • 2.5 TDI (114kW/155PS)
      • 1.9 TDI (74kW/101PS)
      • 2.4 (125kW/170PS)
      • 2.0 FSI (110kW/150PS)
      • 1.9 TDI quattro (96kW/130PS)
      • 1.8 T (120kW/163PS)
      • 1.8 T quattro (120kW/163PS)
      • 2.5 TDI (120kW/163PS)
      • 2.4 (120kW/163PS)
      • 1.8 T (140kW/190PS)
      • 1.8 T quattro (140kW/190PS)
      • 1.9 TDI (85kW/116PS)
      • 3.0 (160kW/218PS)
      • 3.0 quattro (160kW/218PS)
    • A4 B6 Avant (8E5)
      • 1.6 (75kW/102PS)
      • 2.0 (96kW/130PS)
      • 1.8 T (110kW/150PS)
      • 3.0 (162kW/220PS)
      • 1.9 TDI (96kW/130PS)
      • 2.4 (125kW/170PS)
      • 2.5 TDI quattro (132kW/180PS)
      • 2.5 TDI (114kW/155PS)
      • 1.8 T quattro (110kW/150PS)
      • 3.0 quattro (162kW/220PS)
      • 1.9 TDI (74kW/101PS)
      • 1.9 TDI quattro (96kW/130PS)
      • 2.0 FSI (110kW/150PS)
      • 1.8 T (120kW/163PS)
      • 1.8 T quattro (120kW/163PS)
      • 2.5 TDI (120kW/163PS)
      • 2.4 (120kW/163PS)
      • 1.8 T (140kW/190PS)
      • 1.8 T quattro (140kW/190PS)
      • 1.9 TDI (85kW/116PS)
      • 3.0 (160kW/218PS)
      • 3.0 quattro (160kW/218PS)
    • A4 B6 Kabriolets (8H7)
      • 2.4 (125kW/170PS)
      • 3.0 (162kW/220PS)
      • 2.4 (120kW/163PS)
      • 2.5 TDI (120kW/163PS)
      • 1.8 T (120kW/163PS)
      • 1.8 T quattro (120kW/163PS)
      • 3.0 quattro (162kW/220PS)
      • S4 quattro (253kW/344PS)
      • 2.0 (96kW/130PS)
      • 3.0 (160kW/218PS)
    • A4 B7 (8EC)
      • 2.0 TFSI (147kW/200PS)
      • 2.0 TFSI quattro (147kW/200PS)
      • 3.2 FSI (188kW/255PS)
      • 3.2 FSI quattro (188kW/255PS)
      • 2.0 TDI (100kW/136PS)
      • 2.0 TDI 16V (103kW/140PS)
      • 3.0 TDI quattro (150kW/204PS)
      • 1.8 T (120kW/163PS)
      • 1.8 T quattro (120kW/163PS)
      • 2.0 (96kW/130PS)
      • 1.6 (75kW/102PS)
      • 1.9 TDI (85kW/116PS)
      • 2.5 TDI (120kW/163PS)
      • 2.0 TFSI (162kW/220PS)
      • 2.0 TFSI quattro (162kW/220PS)
      • 2.0 TDI quattro (103kW/140PS)
      • 2.0 TDI (125kW/170PS)
      • 2.0 TDI quattro (125kW/170PS)
      • 2.7 TDI (132kW/180PS)
      • 3.0 TDI quattro (171kW/233PS)
      • 2.0 TDI (103kW/140PS)
      • 2.0 TFSI (125kW/170PS)
      • 3.0 quattro (160kW/218PS)
      • 2.0 TDI (89kW/121PS)
      • 2.0 TDI (93kW/126PS)
      • 2.7 TDI (120kW/163PS)
    • A4 B7 Avant (8ED)
      • 1.6 (75kW/102PS)
      • 2.0 (96kW/130PS)
      • 1.8 T (120kW/163PS)
      • 1.8 T quattro (120kW/163PS)
      • 2.0 TFSI (147kW/200PS)
      • 2.0 TFSI quattro (147kW/200PS)
      • 3.2 FSI (188kW/255PS)
      • 3.2 FSI quattro (188kW/255PS)
      • 1.9 TDI (85kW/116PS)
      • 2.0 TDI 16V (103kW/140PS)
      • 2.5 TDI (120kW/163PS)
      • 3.0 TDI quattro (150kW/204PS)
      • 2.0 TDI quattro (103kW/140PS)
      • 2.0 TFSI (162kW/220PS)
      • 2.0 TFSI quattro (162kW/220PS)
      • 2.0 TDI (125kW/170PS)
      • 2.0 TDI quattro (125kW/170PS)
      • 2.7 TDI (132kW/180PS)
      • 2.0 TDI (100kW/136PS)
      • 3.0 TDI quattro (171kW/233PS)
      • 2.0 TDI (103kW/140PS)
      • 2.0 TFSI (125kW/170PS)
      • 3.0 quattro (160kW/218PS)
      • 3.0 (160kW/218PS)
      • 2.0 TDI (89kW/121PS)
      • 2.0 TDI (120kW/163PS)
      • 2.0 TDI quattro (120kW/163PS)
      • 2.7 TDi (120kW/163PS)
      • 2.0 TDI (93kW/126PS)
    • A4 B7 Kabriolets (8HE)
      • 3.2 FSI (188kW/255PS)
      • 3.2 FSI quattro (188kW/255PS)
      • 2.0 TDI (103kW/140PS)
      • 3.0 TDI quattro (171kW/233PS)
      • 2.0 TFSI 16V (147kW/200PS)
      • 2.7 TDI (132kW/180PS)
      • 3.0 TDI quattro (150kW/204PS)
      • 2.0 TDI (100kW/136PS)
  • VW
    • PASSAT B5 (3B2)
      • 1.6 (74kW/101PS)
      • 1.8 (92kW/125PS)
      • 1.8 T (110kW/150PS)
      • 2.3 VR5 (110kW/150PS)
      • 2.8 V6 Syncro/4motion (142kW/193PS)
      • 1.9 TDI (66kW/90PS)
      • 1.9 TDI (81kW/110PS)
      • 2.8 V6 (142kW/193PS)
      • 1.8 Syncro/4motion (92kW/125PS)
      • 1.9 TDI Syncro/4motion (81kW/110PS)
      • 2.3 VR5 Syncro/4motion (110kW/150PS)
      • 1.9 TDI (85kW/115PS)
      • 2.5 TDI (110kW/150PS)
      • 2.5 TDI Syncro/4motion (110kW/150PS)
      • 1.9 TDI 4motion (85kW/115PS)
      • 2.0 (88kW/120PS)
      • 2.0 4motion (88kW/120PS)
      • 1.9 TDI (74kW/101PS)
      • 1.8 (85kW/115PS)
    • PASSAT B5 Variant (3B5)
      • 1.6 (74kW/101PS)
      • 1.8 (92kW/125PS)
      • 1.8 T (110kW/150PS)
      • 2.3 VR5 (110kW/150PS)
      • 2.8 V6 (142kW/193PS)
      • 1.9 TDI (66kW/90PS)
      • 1.9 TDI (81kW/110PS)
      • 2.8 V6 Syncro/4motion (142kW/193PS)
      • 1.8 Syncro/4motion (92kW/125PS)
      • 1.9 TDI Syncro/4motion (81kW/110PS)
      • 2.3 VR5 Syncro/4motion (110kW/150PS)
      • 1.9 TDI (85kW/115PS)
      • 2.5 TDI (110kW/150PS)
      • 2.5 TDI Syncro/4motion (110kW/150PS)
      • 1.9 TDI 4motion (85kW/115PS)
      • 1.9 TDI (74kW/101PS)
      • 2.0 (88kW/120PS)
      • 2.0 4motion (88kW/120PS)
      • 1.8 (85kW/115PS)
    • PASSAT B5.5 (3B3)
      • 1.6 (75kW/102PS)
      • 1.9 TDI (74kW/101PS)
      • 1.9 TDI (96kW/130PS)
      • 2.3 V5 (125kW/170PS)
      • 2.0 (85kW/115PS)
      • 2.5 TDI (110kW/150PS)
      • 1.8 T 20V (110kW/150PS)
      • 2.8 4motion (142kW/193PS)
      • 2.5 TDI 4motion (110kW/150PS)
      • 1.9 TDI 4motion (96kW/130PS)
      • 2.0 4motion (85kW/115PS)
      • 2.3 V5 4motion (125kW/170PS)
      • 2.0 (96kW/130PS)
      • 1.8 T (125kW/170PS)
      • 2.5 TDI 4motion (132kW/180PS)
      • 2.5 TDI (120kW/163PS)
      • 2.0 TDI (100kW/136PS)
      • 2.8 (142kW/193PS)
      • 1.8 T 4motion (125kW/170PS)
      • 2.8 (140kW/190PS)
      • 2.8 4motion (140kW/190PS)
    • PASSAT B5.5 Variant (3B6)
      • 1.9 TDI (74kW/101PS)
      • 1.9 TDI (96kW/130PS)
      • 1.6 (75kW/102PS)
      • 2.0 (85kW/115PS)
      • 2.3 VR5 (125kW/170PS)
      • 1.8 T 20V (110kW/150PS)
      • 2.8 4motion (142kW/193PS)
      • 2.5 TDI (110kW/150PS)
      • 2.5 TDI 4motion (110kW/150PS)
      • 1.9 TDI 4motion (96kW/130PS)
      • 2.0 4motion (85kW/115PS)
      • 2.3 VR5 4motion (125kW/170PS)
      • 2.0 (96kW/130PS)
      • 2.5 TDI 4motion (132kW/180PS)
      • 2.5 TDI (120kW/163PS)
      • 2.0 TDI (100kW/136PS)
      • 1.8 T (125kW/170PS)
      • 2.8 (142kW/193PS)
      • 2.8 4motion (140kW/190PS)
  • SKODA
    • SUPERB I (3U4)
      • 1.8 T (110kW/150PS)
      • 2.0 (85kW/115PS)
      • 2.8 V6 (142kW/193PS)
      • 1.9 TDI (96kW/130PS)
      • 2.5 TDI (114kW/155PS)
      • 1.9 TDI (74kW/101PS)
      • 2.5 TDI (120kW/163PS)
      • 2.0 TDI (103kW/140PS)
      • 1.9 TDI (85kW/115PS)
      • 1.9 TDI (77kW/105PS)
      • 2.8 V6 (140kW/190PS)
  • SEAT
    • EXEO (3R2)
      • 1.6 (75kW/102PS)
      • 1.8 T (110kW/150PS)
      • 2.0 TFSI (147kW/200PS)
      • 2.0 TDI (105kW/143PS)
      • 2.0 TDI (125kW/170PS)
      • 2.0 TDI (88kW/120PS)
      • 1.8 TSI (88kW/120PS)
      • 1.8 TSI (118kW/160PS)
      • 2.0 TFSI (155kW/211PS)
    • EXEO ST (3R5)
      • 1.6 (75kW/102PS)
      • 1.8 T (110kW/150PS)
      • 2.0 TFSI (147kW/200PS)
      • 2.0 TDI (105kW/143PS)
      • 2.0 TDI (125kW/170PS)
      • 2.0 TDI (88kW/120PS)
      • 1.8 TSI (88kW/120PS)
      • 1.8 TSI (118kW/160PS)
      • 2.0 TFSI (155kW/211PS)
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