Delta RP1740 Replacement Two-Handle Stem Repair Kit with Seat and Spring
Stem, seat and spring kit for older Delta and Peerless two-handle kitchen, lavatory, tub and shower faucets. One kit rebuilds one handle.
Replaces these part numbers
| OEM part numbers | Aftermarket equivalents |
|---|---|
| Delta RP1740 Delta RP1740-6 (six pack of the same stem) Stem inside the Delta RP17400 repair kit Seat and spring match Delta RP4993 | n/a |
Will it fit?
Fits
- Older Delta two-handle kitchen, lavatory, tub and shower faucets
- Delta 2600 and 2800 series two-handle faucets
- Peerless two-handle faucets on the same valve body
Not compatible with
- Delta single-handle faucets
- Delta RP50587 Diamond Seal cartridges
- Monitor pressure balance valves
- MultiChoice rough-in valves
- Ceramic disc cartridges
- 2006 and later two-handle faucets that take RP25513
Is this your part?
Pull one handle and the bonnet nut. The RP1740 stem is a short white polymer unit just under 2 in. tall with alignment tabs at the base and a splined top for the handle. A rubber seat and spring sit under it in the valve body. If your faucet has a single lever, or a cartridge that turns in place instead of a stem that rises, this is not your part.
When to replace it
The spout keeps running after both handles are closed, water weeps around the handle base, a handle takes extra force to shut, or it squeals when you turn it. Worn stem seals and a pitted seat cause all four.
Specifications
| FourHome part | 4H2305429A |
|---|---|
| UPC | 850054895127 |
| Stem height | 1-15/16 in. |
| Body diameter | 3/4 in. |
| Materials | Reinforced polymer body, brass threaded insert, stainless spring, EPDM seat and O-ring |
| Certification | NSF/ANSI/CAN 372 lead-free |
| Pieces | 1 kit (rebuilds 1 handle) |
What is in the box
- 1 stem with wave spring washer fitted
- 1 EPDM rubber seat
- 1 stainless steel spring
- 1 large rubber O-ring
How to install it
Time: 15 to 20 minutes per handle. Tools: Allen key, Adjustable wrench.
- Shut the supply at the stops and open the faucet to bleed pressure.
- Back out the handle set screw and pull the handle.
- Unthread the chrome bonnet nut and lift the old stem out.
- Drop the new spring into the valve body, then the seat, cup side up toward the stem. An upside-down seat is the most common reason a rebuilt handle still runs.
- Line up the stem tabs with the slots in the body and set the stem in.
- Thread the bonnet nut down and refit the handle.
Questions
How many kits do I need?
One kit per handle. A two-handle faucet takes two kits to rebuild hot and cold.
Is there a left and right version?
No. The same stem serves either side.
Does it fit my newer Delta faucet?
Two-handle Delta faucets built from 2006 on usually take RP25513, which FourHome sells separately.
Is it lead-free?
Yes. It is certified to NSF/ANSI/CAN 372 by IAPMO R&T.
Is there a 2-pack for both handles?
Yes. The FourHome 2-pack (Amazon ASIN B0HH813JRV) holds two complete kits, each with a stem, rubber seat, spring and O-ring, so one order rebuilds hot and cold.
Related parts
Repair guides
FourHome is not affiliated with or endorsed by any faucet manufacturer. Brand names and part numbers are used only to identify compatibility.