SKU: WIL130-4955
UPC: 889545008029
MPN: 130-4955
The Round O-Ring Kit - 2.75 by Wilwood is an essential maintenance and rebuild component for hydraulic brake systems, designed for technicians and enthusiasts who demand reliable sealing integrity in high-performance brake applications. This kit addresses the critical need for fresh, OEM-specification elastomer seals when servicing or rebuilding brake calipers and master cylinders. Whether you're performing preventive maintenance on a daily-driver braking system or restoring a performance vehicle's brake hardware, this o-ring kit ensures proper fluid containment and system safety.
Round o-rings in 2.75-inch diameter applications are precision-engineered elastomer seals that create a hydraulic barrier between moving and stationary brake components, preventing fluid loss and maintaining pressure consistency during brake engagement. Wilwood's o-ring kits are manufactured to strict dimensional tolerances and material specifications, ensuring compatibility with OEM brake system designs. The 2.75 sizing indicates the inner diameter specification, making this kit suitable for specific caliper and master cylinder bore configurations common in automotive and motorsport brake architectures. Proper o-ring installation and regular replacement during brake service intervals preserve system reliability and safety under demanding conditions.
Brake technicians, restoration shops, and performance vehicle owners benefit most from keeping Round O-Ring Kit - 2.75 units in stock for planned maintenance and emergency brake rebuilds. This kit is essential when disassembling brake calipers for pad replacement, piston service, or full system overhaul on vehicles that rely on 2.75-inch bore brake components. Installation requires draining the brake system, carefully removing old seals, cleaning all bore surfaces, and installing fresh o-rings with appropriate brake fluid or silicone grease for lubrication. Consult your vehicle's brake service manual or Wilwood documentation to confirm o-ring bore dimensions match your specific caliper or master cylinder application before ordering.
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