# JE Pistons Wrist Pin Retainer - 0.630 In Diameter - 0.050 In Thickness - Wire Lock

Most JE shelf pistons include double spiro locks as standard equipment. These locks are installed by spreading the lock between 1/8" and 1/4" and rotating the lock into the groove in the piston pin boss. Wire locks are installed in much the same manner but require chamfered wrist pins. Wire locks tend to spread side loads over more of the piston pin boss area and are considered to be a stronger method of holding the pin in place. Hook wire locks have a built in hook at the end gap. The purose for this style of wire lock is to prevent rotation within the lock groove itself. Tru arc locks fall between these two and can be used with the stock sharp edge wrist pins. The advantage of tru-arc locks is ease of installation and they can be re-used unlike spiro locks, however they are not recommended for medium to high horsepower applications.

-   Made from high-strength chrome silicon and sized at a 0.630" diameter with a 0.050" thickness
-   Chrome Silicon Wire Lock

This Part Fits:

Year

Make

Model

Submodel

2007-2012

Honda

CRF150R

Base

2004-2015

Honda

CRF250R

Base

2004-2017

Honda

CRF250X

Base

2014-2015

Husqvarna

FC250

Base

2004-2014

Kawasaki

KX250F

Base

2005-2015

KTM

250 SX-F

Base

2007-2013

KTM

250 XC-F

Base

2007-2013

KTM

250 XCF-W

Base

2001-2013,2015-2017

Yamaha

WR250F

Base

2001-2018

Yamaha

YZ250F

Base

2015-2019

Yamaha

YZ250FX

Base

## Details

- **Price:** 28.29 CAD
- **Vendor:** JE Pistons
- **Type:** Piston Pins

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 28.29 CAD | In stock |

---

> Source: [Standard Auto Part](https://www.standardautopart.com/products/je-pistons-wrist-pin-retainer-0-630-in-diameter-0-050-in-thickness-wire-lock)
> Updated: 2026-06-29