Skip to product information
1 of 3

FleetPro Parts

Wabco HPB Travel Switch Kit - 4008508440

Wabco HPB Travel Switch Kit - 4008508440

Regular price $144.40 USD
Regular price $180.50 USD Sale price $144.40 USD
Sale Sold out
Shipping calculated at checkout.

Shipping & Returns

Orders are typically processed within 24–48 hours, Monday through Friday, excluding major U.S. holidays. Shipping options include Small Package Saver, Ground, Second Day Air, and Next Day Air. Free Shipping applies to qualifying items within the contiguous 48 states. Freight or oversized shipments require a commercial address. Please inspect all deliveries and report damages within 24–48 hours. We ship only within the continental U.S. and cannot deliver to P.O. boxes or international locations. Most orders ship from our North Carolina warehouse. For estimated transit times, see the shipping chart. Read more information.

About us

Expert-selected truck parts

At FleetPro Parts, we specialize in supplying OEM replacement parts for heavy-duty trucks. From Freightliner and Detroit Diesel to Cummins, Mack, Volvo, and Wabco, our catalog covers the components you need to keep your fleet moving. Every part we stock is tested, reliable, and built to match OEM standards, so you can order with confidence. Our team knows truck parts inside out—from engine cooling and steering to AC systems, alternators, and fuel components. Whether you’re maintaining a single truck or managing an entire fleet, we make it easy to find the right part, at the right time. For when it matters. More about Us.

Contact us

FleetPro Truck Center Inc • 4989 Hendersonville Rd, Fletcher, NC 28732 • Phone +1 888-722-1331

View full details

Description:

The WABCO 4008508440 HPB Travel Switch Kit is a premium OEM hydraulic brake system component designed for heavy-duty trucks equipped with Hydraulic Power Brake (HPB) systems. Engineered for vehicles built after 2006, this kit ensures accurate brake pedal travel detection, supporting ABS and braking system performance for improved safety and reliability.

Features:

Brand: WABCO (ZF Group)
Part Number: 4008508440
Product Type: HPB Travel Switch Kit
Function: Brake pedal travel detection
System Compatibility: Hydraulic Power Brake (HPB)
Vehicle Compatibility: Heavy-duty trucks and buses (2006+)
OEM Status: Genuine / OE equivalent
Signal Type: Mechanical/electrical switch activation
Kit Type: Complete switch kit assembly

Part# : 4008508440
Brand: Wabco
OEM Cross Reference: S4008508440, TDAS4008508440, WAB4008508440, 2605103C91, SW-6878, TDAS4008508440, S4008508440, S4008508440, WAB4008508440, TDAS4008508440, 6300-4008508440, S4008508440, 8235-S4008508440, 4684119232, 4460450072, 815-4008508440