Bilstein is best known for truck and performance shocks, but its B6 line also includes heavy-duty shocks made specifically for motorhome chassis: the Ford F-53, Workhorse, Ford E-Series Class C, Freightliner XC, Spartan and Monaco Roadmaster. Here is what they do well, where they fall short, and how to find the part for your coach.
What you get
- Monotube, gas-pressure construction: consistent damping, even when the shocks get hot on long, rough roads.
- Motorhome-specific valving: made for the weight of a loaded coach, not a pickup.
- Direct-fit mounts: they bolt on with no modifications.
- RV Comfort option for the E-Series: the 33-176840 RV Comfort rear is tuned for a softer ride on Class C coaches. The 33-187570 HD front has firmer valving for heavier loads.
What owners notice after the swap
- Less body roll in turns and on ramps.
- The coach settles after one motion over dips and expansion joints instead of bouncing.
- Less sideways push from passing semis and crosswinds.
- Fewer things fly around inside the cabinets.
What Bilstein shocks won't fix
- Wandering steering is usually caused by worn tie rods or a worn track bar, or by poor alignment. On the F-53, a steering stabilizer helps, but only once the steering parts are healthy.
- An overloaded or sagging chassis. Shocks control motion. They don't hold weight, so weigh the coach and check the springs.
- A very soft ride. The B6 rides firmer and more controlled than tired factory shocks. Most owners like that, but expect to feel it on sharp, small bumps.
Which part fits your coach
Bilstein lists these shocks by chassis, not coach brand. Find your chassis and its front and rear part numbers in Bilstein shocks for Class A and Class C motorhomes, or browse by chassis: F-53, Workhorse, E-Series Class C, Express/Savana, Freightliner XC, Spartan, Monaco Roadmaster and Sprinter.
Verdict
For most Class A and Class C owners whose coach rolls, wallows or gets pushed around, a full set of Bilstein B6 shocks is one of the best-value handling upgrades available: a direct fit, built for heavy use, and noticeable from the first drive. If you want an adjustable shock, read our Koni vs Bilstein RV shocks comparison first.