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Genuine Goulds 10K21 Type 21 Mechanical Seal – NOS
New Old Stock (NOS) genuine Goulds mechanical shaft seal for compatible Goulds submersible sewage and grinder pump applications.
Specifications & Application:
- Brand: Goulds
- Part Number: 10K21
- Type: Mechanical Shaft Seal
- Seal Type: Type 21
- Shaft Size: 1-1/8" (1.125")
- Seal Faces: Carbon / Ceramic
- Elastomer: Buna
- Application: Upper Mechanical Seal
- Genuine OEM Goulds Replacement Part
- Condition: New Old Stock (NOS)
Compatible with select Goulds pump applications including:
- 3888 D3 / 3SD
- 3888 D4 / Dual Seal Submersible Grinder Pump
- Select 2WD / 3WD sewage pump applications
The 10K21 serves as the upper mechanical seal in compatible dual-seal Goulds pump assemblies.
Ideal for pump repair, rebuilding, and maintenance where genuine Goulds part number 10K21 is specified.
This is older NOS inventory. Original packaging may show shelf or storage wear consistent with age.
Please verify part number 10K21, 1-1/8" shaft size, and your specific Goulds pump model before purchasing.
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