Fork Dust Boots (33 mm) | Honda CB350 / CB360

Description

Fork Dust Boots (33 mm) | Honda CB350 / CB360 / CL360 / CJ360

The rubber dust boots on your Honda fork protect the inner fork tube and the fork seals from road grit. Fifty years in, most of them are cracked, torn, or missing altogether. Our Japanese-made replacement boots drop onto the 33 mm fork tubes of the CB360 and CL360 family and match the look of the original Honda part.

Why You Need This

Without a dust boot, every pebble and bit of grit thrown up by the front wheel hits the top of the fork tube just above the seal. Over time that grit scores the chrome, embeds in the seal lip, and starts the slow leak that turns into a full fork-oil-on-your-brake-disc problem. A fresh set of dust boots is the cheap insurance that keeps a good fork rebuild working for years instead of months.

These boots are a direct OEM replacement on the CB360, CL360, and CJ360. They will also fit on the late CB350 and CL350 (K4 and up) as a style conversion — those bikes came from the factory with bellows-style gaiters, but the fork tube diameter is the same and these 33 mm boots bolt right on. The result is the cleaner CB360 look on the CB350 front end.

Specifications

Spec	Detail
Replaces OEM Part Numbers	91254-413-881
Fits Models	CB360G (1974), CB360T (1975–1976), CL360K0 (1974), CL360K1 (1975), CJ360T (1976–1977), CB350K4 (1972), CB350K5 (1973), CL350K4 (1972), CL350K5 (1973)
Fork Tube Diameter	33 mm
Material	Rubber, Japanese-made
Sold As	Pair (one set per bike)

Model-Specific Notes

• CB350G / CL350 K4–K5 — style conversion: The late CB350 / CL350 bikes shipped from Honda with bellows-style fork gaiters. These 33 mm dust boots fit the same fork tube and are a direct bolt-on, but they change the look of the front end to resemble the CB360. If you want to keep the original bellows gaiter look on a late CB350, you need a different product — these boots are for the CB360-style short boot look.
• Not for earlier CB350 (K0–K3): Those bikes have external-spring forks with a different tube and shroud layout. These boots do not fit the early architecture.
• Not for CB450 / CB500 / CB550: Those bikes use 35 mm fork tubes and need a larger diameter boot. See our CB450 / CB500 / CB550 dust boots.

Installation

Difficulty: Easy — do it during any fork rebuild.

The dust boots slide onto the fork tube during fork reassembly, after the seals are pressed in but before the fork tube goes back into the lower slider. They stretch over the top of the fork and seat against the fork cap, then against the top of the slider once the fork is assembled. No tools required.

Frequently Asked Questions

Will these fit my 1973 CB350G?

Yes, without any modification. The fork tube diameter is the same 33 mm as the CB360. The only difference is that you are going from the factory bellows-style gaiter look to the CB360 short-boot look. The fit itself is a direct bolt-on.

Will these fit my CB450 or CB550?

No. The CB450 and CB550 families use larger 35 mm fork tubes. You need the CB450 / CB500 / CB550 fork dust boots for those bikes.

Do I need to buy two sets for my bike?

No. The kit is sold as a pair — one set covers both fork legs on one bike.

How do I know if my existing boots need replacing?

Look for cracks, tears, or hardened rubber. If you can see the chrome fork tube through a split in the boot, replace them. If the rubber has turned hard and brittle, replace them. Road grit gets into any opening and will damage the fork seals quickly.

You Might Also Need

• Fork Seals (Standard) | Honda CB350 / CL350 / SL350 — replace your fork seals while the forks are apart
• Upper Triple Tree | Honda CB350 / CL350 / CB360 / CL360 — the factory casting is notorious for cracking
• Tapered Roller Steering Bearings | Honda CB350 / CL350 / SL350 — upgrade the loose ball headset while the front end is apart

Last updated: April 2026