Harborwright sells the part only — we don't install it. These are general steps; your boat and the maker's manual come first. If you're not sure, have a marine shop fit it.

Safety: Tighten every bolt and recheck after the first tows. Climb only with the trailer hitched or chocked.

Steps

Check your trailer's crossbeam or tongue size against the fit list (3 × 3, 3 × 5 or 4 × 4 in) and pick the spot near the bow where the steps clear the winch stand and the boat.
Fit the mounting plates around the frame with the included bolts (bottom- or side-mount, depending on the option) and snug them.
Set the step angle, mount the handrail on the side you want, and tighten everything.
Check the steps clear the tow vehicle in tight turns before your first tow.
Recheck the bolts after the first few trips.

Follow the maker's manual for your exact model first — they're linked with each part below.