DELPHI LM39090 Main Brake Cylinder

Compatible with AUDI A8 D2 (4D2, 4D8) , AUDI A4 B5 (8D2) , AUDI A4 B5 Avant (8D5) Show more info
This DELPHI main brake cylinder ensures reliable hydraulic pressure for your braking system. Designed for consistent performance and durability.
75.17 EUR
inc. VAT 21%
In stock 1
Delivery 1 day (14.05.2026)
PN LM39090
Make DELPHI
EAN 5012759254028

The DELPHI LM39090 main brake cylinder is a critical component for your vehicle's braking system. It converts the mechanical force from the brake pedal into hydraulic pressure, which is then transmitted to the brake calipers or wheel cylinders to slow down or stop the vehicle. Engineered with precision, this cylinder is built to meet stringent quality standards, ensuring optimal performance and longevity. Its robust construction helps resist corrosion and wear, providing dependable operation under various driving conditions. Proper functioning of the main brake cylinder is essential for safety. The DELPHI LM39090 is designed to integrate seamlessly with your existing brake system, offering a reliable solution for maintenance or repair needs.

  • Direct fit for specific vehicle applications
  • Ensures proper hydraulic pressure for braking
  • Durable construction for long service life
  • Designed for consistent and reliable braking performance
  • Meets or exceeds OE specifications
  • Essential for safe and effective stopping power
Piston diameter [mm]
25,4
Brake system
LUCAS
Thread size 1
M12x1
  • AUDI
    • A8 D2 (4D2, 4D8)
      • 4.2 quattro (220kW/299PS)
      • 2.8 (128kW/174PS)
      • 2.8 quattro (128kW/174PS)
      • 4.2 quattro (180kW/245PS)
      • 3.7 (169kW/230PS)
      • 3.7 quattro (169kW/230PS)
      • 2.8 (142kW/193PS)
      • 2.8 quattro (142kW/193PS)
      • S8 quattro (250kW/340PS)
      • 2.5 TDI (110kW/150PS)
      • 2.5 TDI quattro (110kW/150PS)
      • 2.8 (120kW/163PS)
      • 2.8 quattro (120kW/163PS)
      • 4.2 quattro (228kW/310PS)
      • 3.7 quattro (191kW/260PS)
      • 3.7 (191kW/260PS)
      • 3.3 TDI quattro (165kW/224PS)
      • S8 quattro (265kW/360PS)
      • 4.2 quattro (175kW/238PS)
      • 6.0 W12 quattro (309kW/420PS)
      • 2.5 TDI quattro (132kW/180PS)
      • 2.5 TDI (132kW/180PS)
    • A4 B5 (8D2)
      • 1.6 (74kW/100PS)
      • 1.8 (92kW/125PS)
      • 1.8 T (110kW/150PS)
      • 1.9 TDI (66kW/90PS)
      • 1.8 quattro (92kW/125PS)
      • 1.8 T quattro (110kW/150PS)
      • 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)
      • S4 quattro (195kW/265PS)
      • 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)
      • 1.9 TDI (55kW/75PS)
      • 1.8 (85kW/115PS)
      • 1.6 (75kW/102PS)
      • 2.4 (120kW/163PS)
      • 2.4 quattro (120kW/163PS)
      • 2.8 quattro (140kW/190PS)
      • 2.8 (140kW/190PS)
    • A4 B5 Avant (8D5)
      • 1.6 (74kW/100PS)
      • 1.8 (92kW/125PS)
      • 1.8 T (110kW/150PS)
      • 1.9 TDI (66kW/90PS)
      • 1.9 TDI (81kW/110PS)
      • 1.8 quattro (92kW/125PS)
      • 1.8 T 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)
      • S4 quattro (195kW/265PS)
      • 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)
      • 1.8 (85kW/115PS)
      • 1.6 (75kW/102PS)
      • 2.4 (120kW/163PS)
      • 2.4 quattro (120kW/163PS)
      • 1.9 Hybrid (66kW/90PS)
    • 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 (169kW/230PS)
      • 2.7 T quattro (169kW/230PS)
      • 1.8 T quattro (132kW/180PS)
      • 2.4 (100kW/136PS)
      • 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)
      • 2.4 (120kW/163PS)
      • 2.4 quattro (120kW/163PS)
      • 2.4 quattro (115kW/156PS)
      • 2.8 quattro (140kW/190PS)
    • 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 (169kW/230PS)
      • 2.7 T quattro (169kW/230PS)
      • 2.4 (100kW/136PS)
      • 1.8 T quattro (132kW/180PS)
      • 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)
      • 2.4 (120kW/163PS)
      • 2.4 quattro (120kW/163PS)
      • 2.4 quattro (115kW/156PS)
      • 2.8 quattro (140kW/190PS)
  • 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)
      • 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)
      • 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)
      • 1.9 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)
      • 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)
      • 1.8 T (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)
      • 2.8 (142kW/193PS)
      • 2.8 (140kW/190PS)
      • 2.8 4motion (140kW/190PS)
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