Mon–Fri 9:00 AM–5:00 PM CST  |  Sat 9:00 AM–3:00 PM  |  Sun Closed  |  Call or Text 815-357-3292  •  Free Shipping on Most Orders  •  Real-Time Rates When Applicable  •  Upgrade Delivery at Checkout  |  Ships Next Business Day Monday–Friday  |  We install what we sell — parts backed by real trailer service.  |  Need fitment help? Send us your trailer part photos and we will help you match it right.  |  How are we doing? Leave a review → Mon–Fri 9:00 AM–5:00 PM CST  |  Sat 9:00 AM–3:00 PM  |  Sun Closed  |  Call or Text 815-357-3292  •  Free Shipping on Most Orders  •  Real-Time Rates When Applicable  •  Upgrade Delivery at Checkout  |  Ships Next Business Day Monday–Friday  |  We install what we sell — parts backed by real trailer service.  |  Need fitment help? Send us your trailer part photos and we will help you match it right.  |  How are we doing? Leave a review →
FAMILY OWNED & OPERATED

UFP DB42 Caliper Piston Seal and Dust Boot One Brake 33035U 33040U (33035U + 33040U)

$6.79
Most items ship free — select items ship for $6.39
Out of Stock
Not Sure It Fits? Ask a Pro
R & P Carriages

DB42 Brake Caliper Piston Seal & Dust Boot Kit – UFP

Seal: 33040  |  Dust Boot: 33035

Replacement piston seal and dust boot kit designed for UFP DB42 disc brake calipers. This kit restores proper sealing and protection of the caliper piston to maintain braking performance.

Features

  • Includes one piston seal and one dust boot
  • Designed for UFP DB42 brake calipers
  • Maintains proper hydraulic sealing
  • Protects piston from debris and moisture

R&P Knowledge Hub

The piston seal maintains hydraulic pressure inside the caliper, while the dust boot prevents contamination.

Damaged seals or boots can lead to fluid leaks, sticking pistons, or brake failure.

Specifications

Specification Detail
Caliper Type UFP DB42
Piston Seal Part Number 33040
Dust Boot Part Number 33035
Seal Inside Diameter 1.901"
Kit Contents 1 Seal, 1 Dust Boot

Verify caliper model before installation.

Note: Piston, caliper, and additional components are not included.

33040, 33035, DB42 seal kit, UFP caliper seal, trailer brake seal, dust boot DB42
R & P Carriages