Wrist Pin Kit | Honda CB350 / CL350 / SL350
The wrist pin ties the piston to the connecting rod, and it has to be the exact right length. A pin that's too short floats side to side and hammers its retaining clips until one works loose, and a clip that lets go in a running engine wrecks the top end. This kit is the correct-length pin and two fresh clips for the CB350, CL350, and SL350.
Why You Need This
A lot of aftermarket wrist pins have the right diameter but come up short on length. That extra room lets the pin walk back and forth against the clips, and over time it pounds them loose. Our pin is made to the correct length so it stays put with no extra give.
The clips are the C-style clip, the one shaped like the letter C, which is the correct design for these Honda pistons. The G-style clips you'll find in a lot of kits aren't right for this pin. Whenever a piston comes off, plan on new clips either way; they're cheap and the old ones lose their grip.
This kit works with your original cast pistons and with our "Pulsar" oversize pistons.
What's in the Kit
- 1 wrist pin (also called a piston pin or gudgeon pin)
- 2 C-style retaining clips
One kit does a single piston. A CB350 twin needs two kits for a full rebuild.
Specifications
| Spec | Detail |
|---|
| Replaces OEM Part | 13111-KR9-000, 13111-287-000, 94601-15000 |
| Fits Models | CB350 K0-K5 (1968-1973), CL350 K0-K5 (1968-1973), SL350 K0-K2 (1969-1973) |
| Sold As | Set of one pin and two clips (one kit per piston) |
Installation
Difficulty: Advanced
- Before you set the piston on the rod, install the inner clip — the one on the cam-chain side — into its groove. Set it so the opening faces 180 degrees away from the notch in the piston.
- Oil the wrist pin, line the piston up on the small end of the rod, and push the pin through by hand. It should slide with light thumb pressure.
- Install the outer clip, again with the opening away from the notch, and make sure both clips are fully seated in their grooves.
- Keep a rag stuffed into the crankcase opening the whole time so a dropped clip can't fall into the engine.
Reusing your old pins? Only if you've measured them and they're not worn, grooved, or out of round. The clips, though, get replaced every time.
Our CB350 engine rebuild video walks through installing the piston, wrist pin, and clips.
Frequently Asked Questions
How many kits do I need?
One kit per piston. A CB350, CL350, or SL350 is a twin, so a full rebuild takes two kits.
Do I really need new clips if my pin still looks good?
Yes. Change the clips any time a piston comes off — they lose their spring, and a loose clip in a running engine does real damage. If your pin measures good and you only need clips, we sell the clips on their own too.
Do I need this if I'm buying the Pulsar oversize piston kit?
No. Our "Pulsar" oversize piston kit already comes with new pins and clips. This standalone kit is for reusing your original pistons or replacing worn pins and clips.
Which way does the clip opening face?
Set each clip so its opening points 180 degrees away from the notch cut into the piston. That keeps the clip from backing out.
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Last updated: July 2026
