OEM-Compatible Mechanical Seals
Drop-in replacement seals built to the original dimensions of every major pump and seal brand — at manufacturer-direct pricing.
Brands we build to
- Grundfos
- EagleBurgmann
- John Crane
- Flowserve
- Chesterton
- Flygt
- KSB
- Wilo
- Ebara
- Lowara
- Pentair
- Hayward
- AESSEAL
- Vulcan
- Roten
- and more: send the seal drawing or part number
Choose your brand
Replacement seals for every major brand
We are the manufacturer — we machine drop-in equivalents to the OEM envelope, in the right faces and elastomers for your duty, without the OEM lead time or price. Choose your brand below.
Grundfos-compatible
Replacement seals across the Grundfos pump range, built to the original dimensions.
Common requests: CR, CRI and CRN multistage and circulator pumps
View Grundfos →John CraneJohn Crane-compatible
Replacements for most John Crane seals: component, cartridge and bellows.
Common requests: Type 1, 2 and 21
View John Crane →EagleBurgmannBurgmann / EagleBurgmann
Replacements across the EagleBurgmann range of pump seals.
Common requests: MG1, MG12, MG13 and MG1S20
View Burgmann →FlowserveFlowserve-compatible
Replacements for most Flowserve seals, to API 682 where the spec requires.
Common requests: cartridge, single and bellows seals for process pumps
View Flowserve →ChestertonChesterton-compatible
Replacements for most Chesterton seals, built to Chesterton dimensions.
Common requests: split, cartridge and component seals
View Chesterton →FlygtFlygt-compatible
Replacements for most Flygt submersible pump seals, in abrasion-resistant materials.
Common requests: drop-in cartridge seals for N, DP and CP pumps
View Flygt →Other brands
Other pump & seal brands
We also build OEM-compatible seals for KSB, Wilo, Ebara, Lowara, Pentair, Hayward, AESSEAL, Vulcan, Roten and more — matched to the original dimensions and materials. Don’t see your brand? Send the seal drawing, the seal’s part number or the old seal and we’ll quote a drop-in equivalent.
How it works
How OEM-compatible seals work
A compatible seal is built to the same shaft, sleeve and gland dimensions as the original, so it drops straight into the pump. We match the face pair, balance and elastomer to your service — not down-specced to hit a price — and reverse-engineer obsolete patterns from a sample.
They are equivalents, not sold as genuine OEM parts.
Source OEM-Compatible Seals At Scale
Send the brand and part number, the seal drawing or a sample of the old seal. As the manufacturer we quote drop-in equivalents, custom and private-label seals at low minimums.