These sets consist of high temperature heat resistant, silicone gray dust boots and high temperature pressure seals, manufactured by Frenkit Performance for most late-model Brembo calipers. These are the perfect components for street and track-oriented performance vehicles! These 17Z calipers are common on Porsche Cayenne and VW Touareg's. 
 
Included are the following components:
34mm High Temp Gray Silicone Dust Boot, Quantity 2
34mm Pressure Seal, Quantity 2
36mm High Temp Gray Silicone Dust Boot, Quantity 2
36mm Pressure Seal, Quantity 2
38mm High Temp Gray Silicone Dust Boot, Quantity 2
38mm Pressure Seal, Quantity 2
Caliper Temperature Sticker included free!
 
This seal kit replaces OE Brembo Dust Boot part numbers:
20.4872.43 (20 4872 43) - 34mm
20.4872.44 (20 4872 44) - 36mm
20.4872.45 (20 4872 45) - 38mm
 
This seal kit replaces OE Brembo Pressure Seal part numbers:
05.5955.55 (05 5955 55) - 34mm
05.5955.56 (05 5955 56) - 36mm
05.5955.57 (05 5955 57) - 38mm
 
This seal kit replaces OE Brembo Rebuild Kit part numbers:
105.5955.55 (105 5955 55) - 34mm
105.5955.56 (105 5955 56) - 36mm
105.5955.57 (105 5955 57) - 38mm
 
This caliper is typically known as the 17Z.
 
34mm/36mm/38mm - 17z Brembo Caliper Rebuild Kit
Typically on a 6-Piston caliper, there are two of each piston size, so this combination should service one front caliper (6 pistons total). These are not application specific, rather for those who may have a single torn dust boot or failed pressure seal or for those who are rebuilding their calipers; however, this kit will may work for many aftermarket Brembo or StopTech 6-piston caliper combinations.