Mansfield Sill Cock Repair Kit 630-7755

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White and tand plastic bonnet nuts black rubber seals washers o-rings round grey graphite packings stainless screw and washer with bright brass retainer cup and brass screw.

WHAT OUR CUSTOMERS SAY…

“These people were extremely helpful in taking me through replacing a 25 year old hard water frozen cartridge on my Philrich sink faucet. They were able to identify the correct part I needed from a photo I sent (I had it figured out wrong). I was pleasantly surprised they had an obscure part like this, but they also told me how to extract the old one when I couldn’t get it out. They said to unscrew it after I had concluded from YouTube the old cartridge was supposed to just slide out. It threaded out as they said and saved me buying a cartridge extractor and a hernia. The whole experience has been excellent. ”

-Pete L.

03/10/2026

$30.47

The Mansfield 630-7755 (often referred to as the Prier 630-7755) is a comprehensive service repair kit designed to fix leaks in 300, 400, and 500 Series frost-proof wall hydrants.

We can ship anywhere the US Postal Service ships. For orders being shipped outside the US, please contact us at (888) ASK-NOEL, noelsplumbingsupply@fuse.net, or via the text widget on this screen.

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Restore your outdoor water faucet to perfect working order with this comprehensive repair kit. Designed for Mansfield and Prier 300, 400, and 500 series wall hydrants, this kit eliminates annoying drips from the spout and leaks behind the handle. Includes essential wearable parts—seat washers, graphite packing, and O-rings—ensuring a leak-free, freeze-resistant seal for years to come.

630-7755

It replaces all standard wear parts—such as seat washers, packing, and O-rings—to stop dripping or leaking from the handle area.
Works with original Mansfield wall hydrants and newer Prier Diamond 300/400 Series models manufactured from 1970 to the present.

Kit assembly image with all components.

Related Documents

300 Series Faucet Parts Breakdown

400 Series Faucet Parts Breakdown

500 Series Faucet Parts Breakdown

UPC:670210370363

Customer submitted images.