An older trailer jack may have lost its label, making several Dutton-Lainson swivel models look alike. Compare the wheel layout, crank position, mounting bracket and lift travel before choosing a replacement. An apparently similar 1,500 lb jack may belong to a different series or have a different caster arrangement.

Identify the original jack by MPN and construction

MPN Jack series Rated capacity Lift travel Mount / crank Support base
22457 6400 marine jack 1,000 lb 10 in Bolt-on swivel, sidewind One 6-in wheel
22210 DLx marine jack 1,500 lb 12 in Bolt-on swivel, sidewind One 8-in independent wheel
22335 DLx-P marine jack 1,500 lb 12 in Bolt-on swivel, sidewind One 8-in × 3-in wide independent wheel
22580 6800 marine jack 1,500 lb 12 in Bolt-on swivel, sidewind Two 6-in wheels
22683 6634 ag-industrial jack 2,000 lb 15 in Weld-on swivel, topwind Fixed steel foot; no wheel

For the smaller marine models, 22457 is the 6400 with one 6-in wheel and 10 in travel. The 22210 is the standard DLx with an independent 8-in wheel, while 22335 is the premium DLx-P with a wider 8-in × 3-in wheel and additional protective covers. Both DLx models are 1,500 lb and have 12 in of travel.

The 22580 is the 6800 dual-wheel version: two 6-in wheels, 1,500 lb capacity and 12 in travel. The 22683 is the distinct 6634 agricultural/industrial model: topwind handle, steel foot, 2,000 lb rating, 15 in travel and weld-on bracket.

Measurements have different meanings. Dutton-Lainson lists maximum tongue heights of 25 in (22457), 28½ in (22210 and 22335) and 28 in (22580). The 22683 has a separately listed 24¾-in overall jack height, not a stated maximum tongue-height rating in this comparison. Check the manufacturer's dimensional drawing for the actual mounting position.

What to measure or inspect on the existing trailer

  1. Find the complete MPN. Check labels on the jack's outer tube, retained packaging or previous maintenance records; do not identify by color alone.
  2. Note the crank position. 22457, 22210, 22335 and 22580 are sidewind marine jacks. The 22683 is a topwind jack with a foot rather than wheels.
  3. Count and measure wheels. Compare a single 6-in wheel, the 8-in DLx wheel, the extra-wide 8-in DLx-P wheel or the 22580's pair of 6-in wheels. Wheel size alone is not proof of series fit.
  4. Check mounting style. Identify a bolt-on swivel bracket or the welded bracket of the 6634. Compare swivel-pin condition, bracket positions, frame size and installation clearance.
  5. Measure actual lift needs. Compare the 10-, 12- and 15-in travel options with the trailer's coupler height. The manufacturer lists different maximum tongue heights and an overall height for 22683, so keep those measurements separate.
  6. Check service condition. Inspect crank gears, swivel lock, corrosion, wheel axle and any grease fittings. Replace unsafe or damaged mounting hardware and follow the manufacturer procedure.

Match the MPN to the catalog photograph and listing

These UsedRVParts product records are classified as Brand New. Check the individual listing for current stock, package details and delivery or local-appointment eligibility. Eligible local viewing and pickup in Kelowna is by appointment.

Related trailer reference guides

For equipment elsewhere on the trailer, compare our Dutton-Lainson manual winch identification and C.E. Smith spare-tire carrier identification. These are not interchangeable mounting systems.

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