Replacement for Sayco Bibb Seats, 1/2 in. x 20, 10 Pack
Brass bibb seats, 1/2 in. x 20 thread and 5/16 in. tall, for Sayco two- and three-handle compression tub and shower valves.
Replaces these part numbers
| OEM part numbers | Aftermarket equivalents |
|---|---|
| Sayco 1/2 in. x 20 bibb seat, 5/16 in. tall | Danco #113 (30112E) Lasco SB-42NL Larsen X-42PNL BrassCraft SC1516X Jones Stephens B40032 |
Will it fit?
Fits
- Sayco two-handle compression tub and shower valves
- Sayco three-handle compression tub and shower valves, including the valves that take the Sayco 308 hot, cold and diverter stems
- Valves with a removable 1/2 in. x 20 seat that measures 5/16 in. tall
Not compatible with
- The taller 3/8 in. Sayco 278 seat (Danco #27), same thread but a different part
- 5/8 x 20, 7/16 x 24 and 21/32 x 18 seats
- Single-handle pressure-balance valves and ceramic disc cartridge faucets
- Valve bodies with a seat cast into the body (not removable)
Is this your part?
Pull the handle and stem and look down into the valve pocket. The seat is a short brass insert with a shaped hole for a seat wrench. Back it out and check three things: 1/2 in. x 20 thread, 5/16 in. tall, 9/16 in. across the face. Height is the tell. A Sayco seat with the same thread that stands 3/8 in. tall is the 278 seat, a different part.
When to replace it
The spout drips no matter how hard the handle is turned, water weeps past the handle, or a fresh stem washer stopped the drip for a week and then it came back. That pattern is a grooved seat face, not a bad washer.
Specifications
| FourHome part | 4HBS80711 |
|---|---|
| UPC | 850054895905 |
| Thread | 1/2 in. x 20 TPI |
| Height | 5/16 in. |
| Face | 9/16 in. across |
| Material | Machined brass |
| Quantity | 10 seats |
What is in the box
- 10 brass bibb seats
- Seat wrench, stem washers and thread sealant are not included
How to install it
Time: 5 to 10 minutes per seat. Tools: Seat wrench, Screwdriver, Adjustable wrench, Thread sealant or PTFE tape.
- Shut off the water and open the faucet to bleed pressure.
- Pull the handle and the stem.
- Seat the wrench squarely in the socket so it does not round out, and back the old seat out counterclockwise.
- Put thread sealant or PTFE tape on the new seat.
- Thread it in until snug, then stop. An overtightened brass seat can strip the pocket, and a stripped pocket means replacing the valve.
- Reassemble, restore water and check every handle.
Questions
How do I tell this seat from the Sayco 278 seat?
Measure the height. This seat is 5/16 in. tall. The 278 seat has the same 1/2 in. x 20 thread but stands 3/8 in. tall, and it is a different part.
How many valves does a 10 pack cover?
Ten seats rebuild three complete three-handle valves with one left over, or cover ten single-side repairs.
Do you sell the Sayco stems too?
Yes. FourHome sells replacements for the Sayco P002 hot stem, P004 cold stem and 06550 diverter stem, so a three-handle valve goes back together in one order.
Is a seat wrench included?
No. You need a seat wrench that fits the socket in the seat.
Related parts
FourHome is not affiliated with or endorsed by any faucet manufacturer. Brand names and part numbers are used only to identify compatibility.