MODEL: US Tarp 11668 / 11668-TOP The Ground Level Crankbox (11668) or Top Mount/Cab Level Crankbox (11668-TOP) is an authentic US Tarp replacement part. If you have any questions about compatibility with your particular system, please don't hesitate to give us a call at (786)708-6662. Compatible Systems: US Tarp Polished Aluminum Tarp Spools US Tarp External Mount Galvanized Steel Tarp Systems (Models: 11525, 11567 and related models) US Tarp Underbody Mount Galvanized Steel Tarp Systems (Models: 11540, 14121, 14221 and related models) US Tarp External Mount Polished Aluminum Tarp Systems (Models: 11417, 11529, 11419 and related models) US Tarp Underbody Mount Polished Aluminum Tarp Systems (Models: 11535, 11421, 15034 and related models) US Tarp Bulletproof External Mount Tarp Systems (Models: 15042, 14076, 15466 and related models) US Tarp Bulletproof Underbody Mount Tarp Systems (Models: 13625, 14503, 15087 and related models)
