Danco Faucet Repair Kit (86970)

When a kitchen or bathroom sink faucet starts dripping, replacing the parts that wear inside the handle may be more practical than replacing the whole faucet. The Danco cartridge repair kit is intended for Delta faucets that use a #70-style ball, and includes several of the small components needed for that repair.

It’s designed for hot- and cold-water applications, with an included hex wrench for installation. The details list plastic construction, so this is a parts-focused repair kit rather than a metal replacement assembly.

What matters most

Fit is the first decision. This kit is listed for Delta single-handle faucets with a #70-style ball, including kitchen and bathroom sink faucets. That’s a narrower match than a general-purpose faucet repair kit, and the faucet’s design matters more than the brand name alone. Keep in mind that the listed fit does not establish compatibility with every Delta single-handle faucet.

The package includes a #70 ball, four seats, four springs, two cams, four O-rings, and a hex wrench. Having multiple small parts in one package can be useful when a drip calls for more than one worn component, it also means this may be more than you need if you’re looking to replace only one specific part. The listing describes the construction as plastic and says it complies with the Reduction of Lead in Drinking Water Act. It doesn’t provide further details about the materials of individual components.

How to use it

This kit is for faucet repair, not routine cleaning or care. Before starting, identify whether your faucet uses the specified #70-style ball and compare the parts needed for the repair with the package contents. The included hex wrench is intended for installation, but the product details don’t provide step-by-step instructions. If you’re used to swapping a complete faucet assembly, this kit takes a more targeted approach: it supplies individual repair components instead of a whole faucet.

Practical tips

A slow drip at the sink can be especially noticeable when the faucet is otherwise in good condition. For example, if water keeps falling from the spout after the handle is turned off, this kit may be relevant if the faucet matches the stated #70-ball design. It makes sense if you want to address a leak by replacing internal parts rather than taking on a full faucet replacement.

Check the faucet’s style before opening it, and don’t assume that every single-handle model uses the same ball or repair parts. The included quantity of each component may also be more than a one-part repair requires. If you can’t identify the faucet’s internal design, choosing a kit with confirmed fit for your specific model is a safer path than relying on the Delta name alone.

Before you decide

What faucets is this kit listed for? Delta kitchen and bathroom sink faucets that use a #70-style ball.

What parts come in the package? A #70 ball, four seats, four springs, two cams, four O-rings, and a hex wrench.

Can it be used with hot and cold water? The product details state that it is intended for both hot- and cold-water applications.

Buying verdict

This Danco kit is worth considering when you’ve identified a compatible #70-style ball faucet and want a collection of internal repair parts for a drip, rather than a complete replacement faucet. The main trade-off is fit: the listing gives a specific ball-style match, not universal compatibility across Delta faucets. It might not be a great match if your faucet uses a different design, or if you need confirmed compatibility with a particular model that isn’t identified in the product details.