Identify C.E. Smith Trailer Hub, Dust Cap & Wheel Hardware

Replacing an unfamiliar trailer hub cap or wheel fastener? The most useful clues are the original C.E. Smith part number, the measurement of the hub opening, and whether the hardware attaches the wheel or retains the hub on the spindle. This chart separates parts that can otherwise be confused during a trailer service.

Identify C.E. Smith hub hardware by MPN

A 16200A is a plain metal hub dust cap for a nominal 1.980-inch bore, while 16271 is a chrome-plated bearing protector for a 1.985-inch bore. The protector's grease-pressure mechanism makes it more than a plain snap-in cap. Those nominal dimensions do not establish universal interchangeability.

The 13515 is a much larger component: a galvanized, pre-greased 1,750 lb hub kit with a 5-on-4½-inch bolt pattern for a specified tapered spindle. It includes the manufacturer's hub hardware, so check what remains from the original assembly before buying separate parts.

Identify which part needs replacement

1. Read the MPN and inspect the component: a hub body, dust cap, bearing protector, wheel nut and spindle nut are distinct parts.
2. Measure hub openings: use the correct inside seating diameter for dust caps or protectors. Do not select an item solely because its rounded nominal size seems close.
3. Check wheel-mount design: 11052A is a zinc-plated open-end acorn nut; 16720A is an extra-long chrome acorn nut. Both use ½-20 threads, but wheel-seat and stud compatibility still matter.
4. Look for wheel bolts versus studs: 11062A consists of five ½-20 conical-seat wheel bolts, 1⅝ inches long. They are different from nuts that attach to permanent wheel studs.
5. Inspect the spindle end: 11065A belongs to the spindle nut and washer arrangement, not the wheel lug fasteners. Verify shaft threads and retainer type before replacing.
6. Confirm the exact assembly: for a complete hub, compare spindle measurements, bearing and seal requirements, bolt pattern and load rating. Replace damaged hardware using the axle manufacturer's procedure.

Match product photos to the correct part number

These UsedRVParts listings are marked Brand New. Open each exact MPN to check current condition, quantity supplied and availability. Eligible local viewing and pickup in Kelowna is by appointment.

C.E. Smith 13515

Galvanized hub kit · 5 on 4½ in bolt circle

Pre-greased hub with bearings, dust cap, cotter pin and lug nuts

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C.E. Smith 16200A

Plain hub dust caps · 1.980 in nominal hub bore

Plain metal dust caps, manufacturer packaged as a pair

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C.E. Smith 16271

Spring-loaded bearing protectors · 1.985 in nominal hub bore

Grease-retaining bearing-protector system; different from a plain cap

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C.E. Smith 11052A

Open-end acorn lug nuts · ½-20 thread

Five wheel nuts; check wheel seat and stud size

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C.E. Smith 16720A

Extra-long acorn lug nuts · ½-20 thread

Five extended wheel nuts, not the short open-end type

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C.E. Smith 11062A

Conical-seat wheel bolts · ½-20 × 1⅝ in long

Five bolts for compatible threaded hubs, not wheel studs

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C.E. Smith 11065A

Spindle nuts and washers · For specified spindle hardware

Two spindle nuts with washers; verify the exact shaft and retainer

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Other trailer wheel and mounting references

For other wheel mounting and trailer hardware, compare our spare tire mounting identification and square U-bolt identification. Use the correct original part and dimensions for each installation.