Park Tool Replacement Chain Tool Pins - QK9851C

These genuine Park Tool 9851C replacement pins are designed specifically for use with the MTB-1 an...

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Cycles U.K.Park Tools Park Tool 9851C Pair of Replacement Chain Tool Pins ONE SIZE Black - Cycles UK
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Leisure Lakes BikesPark Tool 9851C Pair of Replacement Chain Tool Pins
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Product Information

Full details

Designed for professional mechanics and dedicated home enthusiasts, these genuine Park Tool replacement pins are the essential maintenance component for reviving your worn chain tools. They offer the exact tolerances required to restore precision performance to your equipment, though it is important to verify your specific tool model compatibility before installation to ensure a secure fit.

All features

Model Part NumberQK9851C
BrandPark Tool

Extended Product Information

FAQs

Are these pins compatible with other Park Tool chain tools like the CT-3.2?

No, these pins are specifically designed for the MTB-1 and CT-6 tools. They will not fit other models.

How many pins are included in the package?

Each package of QK9851C contains two replacement pins.

Do I need special tools to install these pins?

Generally, you only need standard workshop tools like a small wrench or pliers to secure the pin housing, depending on your tool model.

How can I tell if my pin needs replacing?

If the tip of the pin is mushroomed, bent, or if the tool consistently slips off the chain rivet, it is time for a replacement.

Can these pins be used for 12-speed chains?

These pins are designed for the specific tool mechanisms mentioned. Ensure your chain tool is compatible with the width of the chain you are servicing.

Troubleshooting

Pin does not fit into the tool housing

Verify that your chain tool model is either the MTB-1 or CT-6. If the model is correct, ensure the old pin housing is completely clear of debris or metal shavings.

Pin snaps immediately upon first use

Check that the chain is perfectly aligned in the tool channel. Ensure the pin is pushing squarely against the chain rivet and not against the side plate.

Pros and Cons

Pros

  • Exact factory replacement ensures original performance
  • Easy to install in supported chain tool models
  • High-grade steel construction for long service life
  • Includes two pins per package for added value

Cons

  • Compatible only with MTB-1 and CT-6 models
  • Requires basic mechanical skills for proper installation
  • Not intended for non-Park Tool brand chain breakers

Setup, Compatibility & Care

Installation of the QK9851C pins involves removing the damaged pin from your MTB-1 or CT-6 tool body, typically by unscrewing the housing or sliding the old pin out depending on your specific tool's configuration. Ensure the tool's threads are clean before inserting the new pin. To maintain the life of your replacement pins, always ensure the chain is seated perfectly in the tool's cradle before applying pressure. Keep the tool threads lightly lubricated to prevent seizing, and avoid using an impact driver or excessive leverage that could snap the pin during operation.

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