PullRite 4446 Rota-Flex King Pin Box Isolator for SuperLite Fifth Wheel Hitches



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Please call 320-763-7701 for product availability.

The Rota-Flex King Pin Box Isolator kit is designed for use with SuperLite Fifth Wheel Hitches. It can be used with PullRite models #2400 and #2600. A towing system includes each vehicle and component involved in towing. Each item in your towing system has a capacity or weight rating. You trailer has a Gross Vehicle Weight Rating, or GVWR. Your truck has a tow capacity, payload capacity, and possibly more. In addition, your fifth wheel hitch has a weight rating. This weight rating must be at, or above, the GVWR of your trailer for you to tow safely. In addition, if your truck can tow larger loads (has a larger capacity) than the rating of your hitch, your system is only safe to tow loads at the lower rating, that of the hitch. Your mounting kit also has a weight rating, just like your fifth wheel hitch. Many times, these ratings are designed to match. But, this is not always the case. Your mounting kit may be higher rated then your fifth wheel hitch, but it also could be lower depending on the components involved. The lowest rating of any one component in the system becomes the rating of the entire system. If your mounting kit is rated to 18,000 lbs., and your hitch is rated at 24,000 lbs., the weight rating of the entire system will not be above 18,000 lbs. Other components in the system could lower the actual system rating further.

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