Fifth Wheel Cover — Protect Your RV Investment
Fifth wheels are the largest RVs most owners will ever buy — and the most expensive to repair. A fifth wheel cover is a fraction of the cost of repainting a delaminated sidewall or replacing a cracked roof membrane. Here is the complete guide to choosing and using one.
Why a Fifth Wheel Needs Full Coverage
A fifth wheel presents a huge surface to the weather: a long roof, tall sides, front cap, and rear cap. Each surface fails differently:
- Roof membrane — UV cracks EPDM and TPO; leaks start here
- Sidewalls — sun fades graphics and oxidizes gel coat
- Windows and seals — heat hardens butyl tape and gaskets
- Undercarriage and tires — covered models shield tires from UV cracking
Sizing a Fifth Wheel Cover
Fifth wheel covers are sized in feet by body length — but never trust the model number alone.
Measure: total length including the nose and rear ladder, width over the widest point (often the slides), and height at the roof air conditioner. Choose the cover size that matches all three, not just length.
Key Features to Look For
- Slide-out allowances — covers sized for extended slides, or removable access panels
- Reinforced roof panels — prevent water pooling and reduce flapping
- Elastic hem — hugs the chassis without straps that scratch the frame
- Ventilated panels — reduce condensation under the cover in humid climates
Installation Basics
- Walk the cover from the nose over the roof, pulling it evenly.
- Position the reinforced roof panels over the AC units and vents.
- Snap the elastic hem under the chassis, working front to back.
- Secure the ladder-side straps; double-check on windy days.
Common Questions
Should I cover the fifth wheel while it is hitched to the truck? No. The cover is designed for an unhitched, parked coach. Covering while hitched stresses the front cap area and blocks access to the hitch.
Do covers scratch the paint? Quality covers use a soft inner lining. Dirt trapped under the cover is the real scratch risk — always wash the coach before covering.
How long does a cover last? With proper care, 3-5 seasons. UV exposure is the main killer; store the cover indoors when the coach is not parked outdoors.
Can I install a cover alone? Yes, with the walk-over method — drape it over the roof from the nose and pull it back evenly. Two people make it faster, but one person can manage it.
The Golden Rule
Buy for the widest and tallest points, not the sticker length. A fifth wheel cover that is too small strains at the slides; one too large flaps against the roof.
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Originally published at JK Corp Car Cover Guides







