Identify C.E. Smith Clamp-On Rod Holders by Rail Size

Trying to identify a clamp-on fishing-rod holder removed from a boat rail? Start with the rail shape, the original tube direction and the measured outside dimension. C.E. Smith's aluminum round-rail models look similar but are made for distinct diameters, while the pontoon 55108A uses protective liners for square rails.

Identify C.E. Smith rail clamps by MPN

Model 53710 is the horizontal-rail holder for 1.315-inch OD. Model 53730 uses a horizontal clamp for a 1.90-inch OD rail, while 53735 matches that same diameter in a vertical-rail arrangement. The larger horizontal model is 53740, for 2.375-inch OD.

The 55108A is the distinct pontoon-style holder for 1-inch or 1¼-inch square rails. It has adjustable angles, a stainless tube, protective liners and included mounting screws with a hex key.

Inspect the original installation

1. Find the full number. Check for a C.E. Smith MPN on the holder, its packaging or prior records.
2. Identify the rail section. A horizontal-rail clamp is different from one intended for a vertical rail, even if the rod-holder tube looks similar.
3. Measure rail outside diameter. For the round models compare 1.315, 1.90 or 2.375 inches; for 55108A measure the width of the square pontoon rail.
4. Look for liners and adjusters. The 55108A uses two protective sleeves for its specified square rails. Missing sleeves or hardware can affect proper installation.
5. Check wear before reuse. Inspect clamps for distortion, corrosion, missing fasteners and damage to the mounting rail. Compare the exact replacement listing before ordering.

Matching photographs and product listings

These UsedRVParts records are marked Brand New. Review each exact part number for current stock, condition and supplied components. Viewing and pickup of eligible items in Kelowna are by appointment.

C.E. Smith 53710

Round rail · 1.315 in OD · Horizontal-rail clamp

For a horizontal round rail measured at 1.315 in outside diameter

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C.E. Smith 53730

Round rail · 1.90 in OD · Horizontal-rail clamp

For a horizontal round rail measured at 1.90 in outside diameter

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C.E. Smith 53735

Round rail · 1.90 in OD · Vertical-rail clamp

Same nominal rail OD as 53730, different clamp orientation

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C.E. Smith 53740

Round rail · 2.375 in OD · Horizontal-rail clamp

For a horizontal round rail measured at 2.375 in outside diameter

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C.E. Smith 55108A

Square rail · 1 or 1¼ in · Adjustable pontoon clamp

Two protective sleeves for 1- and 1¼-in square pontoon rails

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More fishing-rod holder references

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