More than likely if you're having to replace the caliper piston boot on your trailer, you're also needing to replace the seal. The Kodiak 225 Caliper Piston Seal fits Kodiak calipers for disc brake assemblies on axles that are rated from 3,500 to 6,000 lbs. Make sure your trailer is road ready and safe to haul by using durable and reliable Kodiak parts. If the caliper boot or seal is damaged, dirt, water, and debris can cause further damage, which can lead to danger on the roadway. SkipperMate Marine is here to make the repair and replacement process simple with our easy-to-use online ordering. You'll even find helpful videos on our site as well. The Kodiak 225 Caliper Piston Seal is versatile, fitting two sizes of rotors and it's compatible with other American brands, which means you can interchange them if needed. Feel free to contact us at SkipperMate Marine if you have any questions or concerns. We're always happy to help.