C.E. Smith Clamp-On Rod Holders: Round & Square Rail Sizes

Adding a fishing-rod holder to a boat rail or pontoon? C.E. Smith offers marine-grade anodized aluminum clamp-on holders for several round rail outside diameters, plus a separate stainless-tube model designed for square pontoon rails. Before buying, match the measured rail size and whether the tube runs horizontally or vertically.

Choose the correct clamp style

Round, horizontal rail53710 fits 1.315-inch OD; 53730 fits 1.90-inch OD; and 53740 fits 2.375-inch OD round rails. All three have anodized aluminum construction.
Round, vertical rail53735 is the vertical-rail version for 1.90-inch OD round tubes. Its rail direction distinguishes it from 53730 even though the nominal diameter matches.
Square pontoon rail55108A includes protective sleeves for 1-inch and 1¼-inch square rails. The stainless tube is 9 inches long with a 1⅝-inch bore, and the angle can be adjusted.

C.E. Smith clamp-on rod holder comparison

MPN Rail shape Rail dimension Clamp orientation Construction
53710 Round 1.315 in OD Horizontal-rail clamp Anodized aluminum
53730 Round 1.90 in OD Horizontal-rail clamp Anodized aluminum
53735 Round 1.90 in OD Vertical-rail clamp Anodized aluminum
53740 Round 2.375 in OD Horizontal-rail clamp Anodized aluminum
55108A Square 1 or 1¼ in Adjustable pontoon clamp Stainless tube; alloy clamp
Measure the mounting rail itself. For the round-rail models, C.E. Smith specifies the outside diameter (OD), not the tube's nominal pipe size. Match horizontal versus vertical rail orientation as well as diameter. The 55108A is made for square pontoon rails, not a round tube with a similar measurement.

Before installing a rail-mounted holder

  1. Check rail shape and direction. Confirm whether the support is round or square and whether it runs horizontally or vertically where the clamp will sit.
  2. Measure the outside dimension. Measure the actual round-rail OD or the side of the square pontoon rail. Do not substitute nominal pipe measurements without checking.
  3. Compare the exact MPN. 53730 and 53735 both fit 1.90-inch OD round rails, but the clamp orientation differs. Neither is the square-rail pontoon version.
  4. Check clearance and movement. Leave room for the rod, reel, adjacent seats, passengers and the waterline. Verify the holder can be used without interfering with boat operation.
  5. Follow the mounting instructions. Use the manufacturer's clamping procedure and check the rail's suitability. The 55108A has two protective sleeves and includes mounting screws and a hex key; inspect those components before fitting.

Shop exact C.E. Smith rail-mounted holders

Choose from these matching manufacturer part numbers. NewRVParts orders ship from supplier warehouses; warehouse viewing and pickup are not available.

More fishing-rod holder references

Rail-mounted holders are not the same as flush-mounted or side-mounted styles. Compare our Attwood rod holders by angle and mount and Sea-Dog rod-holder mounting styles for other mounting choices.

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