2. OEM Replacement Seals by Brand
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Tsurumi 25mm Double Mechanical Seal — OEM 025-001-00 (H-25T)
Tsurumi 25mm Double Mechanical Seal — OEM 025-001-00 (H-25T)
Tsurumi 25mm Double Mechanical Seal — OEM 025-001-00 (H-25T)
Direct-fit aftermarket Tsurumi 25mm double mechanical seal (upper + lower) for submersible pump applications using a 25mm shaft. This seal is sold by OEM cross-reference for fast ordering and is commonly identified as Tsurumi 025-001-00 (H-25T), which supersedes 025-000-07.
Built for high-duty submersible service, this two-stage seal uses a proven face combination: CAR/SIC on the upper stage and a hard-face SIC/SIC lower stage to handle tough conditions and extend run time.
At a glance
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OEM part number: 025-001-00 (supersedes 025-000-07)
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Seal type: Double mechanical seal (upper + lower)
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Shaft size: 25mm
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Face materials: Upper CAR/SIC + Lower SIC/SIC
Compatibility note: This seal is frequently searched for Tsurumi 25mm applications and is also commonly referenced alongside Ebara 260B 25mm seal searches—always confirm the OEM number and pump model before ordering.
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Tsurumi 30mm Double Mechanical Seal — H-30 / 025-194-12
Tsurumi 30mm Double Mechanical Seal — H-30 / 025-194-12
Tsurumi 30mm Double Mechanical Seal — H-30 / 025-194-12
Direct-fit aftermarket Tsurumi 30mm double mechanical seal (upper + lower) for submersible pump applications using a 30 mm shaft. This seal is commonly referenced as Tsurumi H-30 and Tsurumi OEM 025-194-12, making it easy to match manuals, invoices, and old seal packaging. Supplied with 44 × 57 stationary seats to achieve proper fit in the seal housing on listed applications. Compatible with Tsurumi 100C43.7-CR63—ideal for submersible duty where reliable sealing and long service life are required.
At a glance:
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Shaft size: 30 mm
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Configuration: Double seal (upper + lower)
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Seat size: 44 × 57 (verify against your housing bore)
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Form: Seal assembly only (O-rings/gaskets sold separately)
Compatibility / Cross-reference:
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Compatibility: Tsurumi 100C43.7-CR63
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Cross-ref: H-30 / 025-194-12
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Tsurumi 35mm Double Mechanical Seal — Tsurumi H-35 / OEM 025-195-13
Tsurumi 35mm Double Mechanical Seal — Tsurumi H-35 / OEM 025-195-13
Tsurumi 35mm Double Mechanical Seal —H-35 / 025-195-13
For Tsurumi 100C43.7-CR-63 and 100C47.5-CR-63 pump rebuilds, this is a direct-fit aftermarket Tsurumi 35mm double mechanical seal (upper + lower) for submersible applications using a 35 mm shaft. This seal is commonly referenced as Tsurumi H-35 / OEM 025-195-13, and many assemblies use 54mm or 57mm stationary seat OD—this listing includes both seats to help match common housing variations.
At a glance:
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Shaft size: 35 mm
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Configuration: Double seal (upper + lower)
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Seats included: 54 mm OD and 57 mm OD stationary seats
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Form: Seal assembly only (O-rings/gaskets sold separately)
Tsurumi cross references:
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Tsurumi seal ID: H-35
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Tsurumi OEM part number: 025-195-13
Compatibility:
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Tsurumi 100C47.5-CR63
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Tsurumi 100C43.7
This Tsurumi 35mm double mechanical seal (upper + lower) is commonly searched for Tsurumi 100C43.7-CR-63 and Tsurumi 100C47.5-CR-63 rebuilds and leak repairs.
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Tsurumi 100C43.7-CR-63: OEM parts list shows Mechanical Seal 025-195-13 (H-35, SiC).
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Tsurumi 100C47.5-CR-63: some OEM parts lists show Mechanical Seal 025-280-16 (H-35A, SiC+CCBN) — verify your pump’s parts list/OEM number to ensure the correct variant.
What’s included: Double seal assembly (upper + lower) with two stationary seats (54mm OD + 57mm OD) to match common housing variations.
Search tip: If you arrived here by searching “100C43.7 mechanical seal” or “100C47.5-CR63 mechanical seal replacement,” match your OEM number below for the fastest confirmation.
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Tsurumi 45/50mm Double Mechanical Seal (Step Shaft) — LH430W-61
Tsurumi 45/50mm Double Mechanical Seal (Step Shaft) — LH430W-61
Tsurumi 45/50mm Double Mechanical Seal (Step Shaft) — LH430W-61
Direct-fit aftermarket double mechanical seal (upper + lower) for Tsurumi LH430W-61 submersible pumps with a 45/50mm stepped shaft (two shaft diameters per OEM spec). Built as an OEM-style replacement seal assembly for heavy-duty submersible service where long run time and dependable sealing matter.
Cross-reference up front (for faster matching): HT-4550N, 025-001-24, 025-000-04, 025-305-18.
*For full rebuild we recommend- Tsurumi LH430W-61 Seal Kit– which includes seals + O-ring kit
At a glance:
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Pump application: Tsurumi LH430W-61
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Shaft geometry: Step shaft 45/50 mm
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Configuration: Double mechanical seal (upper + lower)
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Form: Seal assembly only (for seals + O-rings, see the kit below)
Cross-reference: HT-4550N / 025-001-24 / 025-000-04 / 025-305-18.
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Tsurumi 50mm Double Mechanical Seal — H-50T / OEM 025-268-18
Tsurumi 50mm Double Mechanical Seal — H-50T / OEM 025-268-18
Tsurumi 50mm Double Mechanical Seal — H-50T / OEM 025-268-18
Direct-fit aftermarket Tsurumi 50mm double mechanical seal (upper + lower) for submersible pump applications using a 50 mm shaft. This seal is commonly referenced as Tsurumi H-50T and Tsurumi OEM 025-268-18, and it’s also widely listed in aftermarket catalogs as VGMH-50T for easy manual/invoice matching.
Built for demanding submersible duty, this two-stage seal uses a proven face combination: CAR/SIC on the upper stage with a hard-face SIC/SIC lower stage to improve wear resistance and service life in abrasive applications.
At a glance:
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Shaft size: 50 mm
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Configuration: Double seal (upper + lower)
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Face sets: Upper CAR/SIC · Lower SIC/SIC
Tsurumi cross references
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Tsurumi seal ID: H-50T
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Tsurumi OEM part number: 025-268-18
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Tsurumi 60mm Double Mechanical Seal — H-60 / OEM 025-199-17
Tsurumi 60mm Double Mechanical Seal — H-60 / OEM 025-199-17
Tsurumi 60mm Double Mechanical Seal (Upper + Lower) — H-60 / OEM 025-199-17
Direct-fit aftermarket Tsurumi 60mm double mechanical seal (upper + lower) for submersible pumps that use a 60 mm shaft. This seal is commonly referenced as Tsurumi H-60 and OEM 025-199-17, and it’s also frequently listed in aftermarket catalogs as VGMH-60 (Type VGM562). Built for high-duty submersible service, this complete upper + lower seal set is designed for dependable sealing and long run time in demanding applications.
At a glance:
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Configuration: Double seal (upper + lower)
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Shaft size: 60 mm
Tsurumi cross references:
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Tsurumi seal ID: H-60
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Tsurumi OEM part number: 025-199-17
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Wilo / EMU Circulator Mechanical Seal — 2063600 (MG12 / 18-G60)
Wilo / EMU Circulator Mechanical Seal — 2063600 (MG12 / 18-G60)
Wilo / EMU Circulator Mechanical Seal — 2063600 (MG12 / 18-G60)
Direct-fit aftermarket mechanical seal replacement for Wilo / EMU circulator pumps referenced as 2063600. This seal matches the MG12 rotary with G60 stationary seat configuration and is supplied as a complete component set (rotary, spring, and stationary seat) for straightforward replacement.
Standard build: Silicon Carbide vs. Silicon Carbide (SiC/SiC) faces with Viton (FKM) elastomers—a durable choice for circulator service, including hot water and glycol mixes commonly found in HVAC systems.
Specs:
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Part / Ref: 2063600
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Style: MG12 rotary + G60 seat
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Shaft size: 18 mm
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Faces: SiC / SiC
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Elastomers: Viton (FKM)
What’s included:
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Complete MG12 / 18-G60 component seal (rotary, spring, and stationary seat)
Notes:
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OEM materials may vary. We standardize SiC/SiC/Viton for performance and consistency.
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Need different materials (e.g., Carbon/Ceramic, NBR, EPDM). Call us for special ordering.
Fitment tip: If your pump uses a different shaft size in the same Wilo/EMU circulator family, related listings include 2062115 (17mm MG1/17-G1) and 2063601 (24mm MG12/24-G60).
Questions or requests? Call us anytime—we’re happy to help confirm fit and material selection.
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Wilo / EMU Circulator Mechanical Seal — 2063601 (MG12 / 24-G60)
Wilo / EMU Circulator Mechanical Seal — 2063601 (MG12 / 24-G60)
Wilo / EMU Circulator Mechanical Seal — 2063601 (MG12 / 24-G60)
Direct-fit aftermarket mechanical seal replacement for Wilo / EMU circulators referenced as 2063601. This seal matches the MG12 rotary with G60 stationary seat configuration for 24 mm shafts—a common way these seals are identified on invoices and seal packaging (MG12/24-G60).
Our standard build is Silicon Carbide / Silicon Carbide (SiC/SiC) with Viton (FKM) elastomers for durability, chemical resistance, and long service life in hot water and glycol HVAC circulator service.
Specs:
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Part / Ref.: 2063601
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Style: MG12 rotary + G60 seat
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Shaft size: 24 mm
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Faces: SiC / SiC
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Elastomers: Viton (FKM)
What’s included
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Complete MG12 / 24-G60 component seal (rotary, spring, and stationary seat)
Notes:
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OEM materials may vary. We standardize SiC/SiC/Viton for performance and consistency.
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Need a different combo? (e.g., Carbon/Ceramic, NBR, EPDM) Available on request, just give us a call.
Fitment note: Wilo circulator seals are commonly identified by item/part number (2063601)or by the seal marking MG12/24-G60 (sometimes shown on supplier listings as MG12/24-G60 AQ1EGG). Always match shaft size + seat style before ordering; materials may vary by OEM configuration.
If your pump uses a different shaft size in the same Wilo/EMU circulator family, see these related seals:
Questions? Call/Text 561-414-1046 and we’ll help confirm fit.
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Wilo / EMU Circulator Mechanical Seal — 2216655 / 2062115 (MG1 / 17-G1)
Wilo / EMU Circulator Mechanical Seal — 2216655 / 2062115 (MG1 / 17-G1)
Wilo / EMU Circulator Mechanical Seal — 2216655 / 2062115 (MG1/17-G1)
Direct-fit aftermarket mechanical seal replacement for Wilo / EMU circulator pumps referenced as 2216655 / 2062115. Built in the MG1 / 17-G1 configuration with an MG1 rotary and G1 stationary seat for a 17 mm shaft—a common way these seals are identified on invoices and seal packaging.
Standard build (our stocked configuration): Silicon Carbide vs Silicon Carbide (SiC/SiC) faces with Viton (FKM) elastomers for durability, heat/chemical resistance, and long service life in hot water and glycol HVAC circulator service.
Specs:
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Part / Ref.: 2216655 / 2062115
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Style: MG1 rotary with G1 seat
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Shaft size: 17 mm
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Faces: SiC / SiC
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Elastomers: Viton (FKM)
What’s included:
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Complete MG1/17-G1 component seal (rotary, spring, and stationary seat)
Fitment note: Wilo/EMU circulator seals are commonly identified by the part number and/or the seal marking MG1/17-G1. If your system uses a different shaft size in this same Wilo/EMU circulator family, see the related seals:
Material note: OEM materials can vary by pump/build. If you need a different combination (Carbon/Ceramic, NBR, EPDM, etc.), contact us—other materials are available upon request.
Looking for more? We supply the largest selection of parts in industry.
Shop Shaft Seals, Pump Repair Kits, OEM Seals and Gaskets.
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