Gas Props for Camper Shells, Tonneau Covers & Toolboxes
Replacement gas props (lift supports) for truck caps, camper shell rear doors, fiberglass tonneau covers and aluminum toolboxes. Every pair ships with 4 spare ball mounts. Match the extended length first, then the force.
Gas prop finder
Measure your old prop fully extended, center of socket to center of socket.
10″ to 11″ props
10″ gas props, 45 lbs (pair)
Fits: Standard aluminum toolboxes and camper shell windoors (UWS, DeeZee, Better Built, A.R.E., Leer)
10.5″ gas props, 25 lbs (pair)
11.4″ gas props, 70 lbs (pair)
Fits: RKI aluminum toolboxes (C63A, C63AB)
Standard-width single-lid RKI toolboxes only. Not for double-lid or wide toolboxes.
12″ to 14″ props
12.2″ gas props, 24 lbs (pair)
12.2″ gas props, 40 lbs (pair)
Fits: A.R.E., Snugtop and Leer camper doors; aluminum Weatherguard toolboxes
13″ gas props, 30 lbs (pair)
Fits: A.R.E., ATC, Snugtop and Leer camper shell rear doors
13.9″ gas props, 24 lbs (pair)
Fits: A.R.E., Snugtop, ATC and Leer truck toppers
13.9″ gas props, 40 lbs (pair)
15″ to 18″ props
15.7″ gas props, 28 lbs (pair)
Fits: A.R.E., Snugtop, ATC and Leer camper shells
15.7″ gas props, 38 lbs (pair)
15.7″ gas props, 45 lbs (pair)
15.7″ gas props, 55 lbs (pair)
17.1″ gas props, 28 lbs (pair)
17.1″ gas props, 45 lbs (pair)
17.1″ gas props, 70 lbs (pair)
17.1″ gas props, 85 lbs (pair)
20″ to 30″ props
19.7″ gas props, 50 lbs (pair)
19.7″ gas props, 100 lbs (pair)
Fits: A.R.E. fiberglass tonneau covers (LT, LSII, LSX)
19.7″ gas props, 110 lbs (pair)
Fits: A.R.E. pickup bed tonneau covers
27.5″ gas props for UnderCover tonneau covers, 40 lbs (pair)
Fits: UnderCover tonneau covers
Fits UnderCover tonneau covers only, except the Ford Sport Trac UnderCover.
26.5″ gas props, 80 lbs (pair)
Fits: Snuglid SL and F2, short bed and extra-short bed (5.5′ to 6.5′)
Fits some, but not all, Snuglid SL and F2 models. Measure your old props first.
29.5″ gas props, 80 lbs (pair)
Fits: Snuglid SL and F2, long bed (8.0′ to 8.5′)
Fits some, but not all, Snuglid SL and F2 models. Measure your old props first.
29.5″ gas props, 90 lbs (pair)
Fits: Snuglid SL and F2, long bed (8.0′ to 8.5′)
Fits some, but not all, Snuglid SL and F2 models. Measure your old props first.
29.5″ gas props, 100 lbs (pair)
Fits: Snuglid SL and F2, long bed (8.0′ to 8.5′)
Fits some, but not all, Snuglid SL and F2 models. Measure your old props first.
























