Wilwood Caliper Service Kits
Representative Photo, actual item may vary
Representative Photo, actual item may vary
Representative Photo, actual item may vary
Wilwood Caliper Service Kits: Restore Race-Proven Braking Performance
When you've invested in a set of Wilwood calipers, protecting that investment over the long haul is straightforward — provided you use the right service components. Wilwood's Caliper Service Kits are engineered specifically to match the exacting tolerances of Wilwood's own caliper lineup, so you're never left guessing about fitment or seal compatibility during a rebuild.
Why Wilwood Calipers Are Built to Be Rebuilt
One of the defining characteristics of Wilwood's caliper design philosophy is longevity through serviceability. Wilwood calipers are constructed from stress-flow forged, premium-grade aluminum billets, with pistons machined from high-grade stainless steel — a combination that virtually eliminates rust in the bore or on the piston surfaces. Because the hardware itself is so durable, the only components that typically wear over time are the specially formulated rubber bore seals. That's precisely what Wilwood's caliper service kits address.
What's Inside a Wilwood Caliper Service Kit
Wilwood offers replacement square o-ring kits for every piston size the company produces, with each kit referenced by a unique part number matched to a specific caliper and bore configuration. Unlike competing designs that rely on round seals, Wilwood calipers use square-profile seals, which are easier to seat correctly during a rebuild and provide consistent sealing pressure across the bore. Kits are formulated using high-strength rubber compounds engineered to withstand the full spectrum of modern racing brake fluids.
- O-Ring Seal Kits — Available for a wide range of piston diameters, from 1.12 in. through 2.50 in., covering caliper families such as the Dynalite, Dynapro, D154, and TX6R Forged Radial Mount.
- Full Rebuild Kits — For select caliper models like the Dynapro Single, these kits go beyond seals to include piston seals, wear plates, pad retainers, and cotter pins — everything needed for a comprehensive service in one box.
- Slide Pin O-Ring Kits — Designed for floating-style caliper applications such as the DH4, D52, D154, and GM Metric configurations, addressing the often-overlooked slide pin seal as part of a thorough rebuild.
Matching the Right Kit to Your Caliper
Because Wilwood produces an exceptionally broad range of calipers — from compact units used in karting and light-duty applications all the way up to heavy-duty racing and OEM-replacement hardware — selecting the correct service kit requires knowing your caliper model and piston bore size. Wilwood stamps a model number directly onto the caliper body to simplify identification. Once you have that number, cross-referencing the appropriate service kit is straightforward. Wilwood recommends servicing both calipers on an axle simultaneously to maintain balanced braking performance.
Whether you're refreshing a track-day setup, restoring a vintage performance build, or simply performing preventive maintenance, Wilwood Caliper Service Kits ensure your calipers continue performing to the same standard they were built to meet. Browse the full selection of Wilwood Caliper Service Kits to find the exact rebuild solution for your application.
