Answer
Jan 27, 2026 - 07:54 AM
Maybe but it’s not a guaranteed “yes” without one measurement.
The Curt 13703 is a universal, frame-mounted RV hitch. It’s designed to fit RV frames 22 inch to 72 inch wide and it can be bolted on (requires drilling) or welded on. It does not care about the RV make/model as much as it cares about your frame width and frame construction.
What you must check on your 2021 Grand Design Imagine XLS
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Frame width where the hitch will mount
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Measure outside-to-outside of the main frame rails at the rear.
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If it’s between 22 and 72 inches, the 13703 can be set to that width.
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Frame type / access
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The 13703 brackets clamp/bolt to the frame, but the install sheet shows drilling 4 horizontal holes per side (and optional vertical holes if clearance allows).
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If your frame is boxed and you can’t access/clearance is tight, you may need to weld or have a shop do the drilling/fit-up.
Capacity reality check (important)
The 13703 itself is rated 3500 lbs GTW / 350 lbs TW, but your RV’s rear frame rating may be lower. A lot of owners end up limited by the RV, not the hitch especially for heavy cargo carriers or e-bikes
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