Tsurumi Mechanical Seals
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Tsurumi 20MM Double Mechanical Seal
Tsurumi 20MM Double Mechanical Seal
View ProductTsurumi 20mm Double Mechanical Seal (Upper + Lower)
Direct-fit 20mm double mechanical seal replacement for Tsurumi submersible pumps that use a 20 mm shaft and a two-stage (upper + lower) seal set. This seal is built with hard silicon carbide faces on both stages (SiC/SiC – SiC/SiC) and Viton (FKM) elastomers for long service life, higher temperature capability, and strong chemical resistance in demanding pump environments. Cross-referenced to Tsurumi Mechanical Seal H-20T(E) and OEM 025-000-98 for matching manuals, invoices, and service parts lists.
At a glance:
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Shaft size: 20 mm
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Configuration: Double seal (upper + lower)
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Faces: SiC/SiC – SiC/SiC
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Elastomers: Viton (FKM)
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Form: Seal assembly only (O-rings/gaskets sold separately)
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Tsurumi 30mm Double Mechanical Seal — H-30 / 025-194-12
Tsurumi 30mm Double Mechanical Seal — H-30 / 025-194-12
View ProductTsurumi 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
View ProductTsurumi 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
View ProductTsurumi 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
View ProductTsurumi 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
View ProductTsurumi 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
Explore our full line up of OEM seals
Looking for more? Shop Pump Repair Kits, Shaft Seals and Pre-Cut Gaskets
Have questions? Call us anytime- we’re here to help
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