Cornell Mechanical Seals
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Cornell & Thompson Mechanical Seal3″ T-2 (Tungsten or SiC/SiC)
Cornell & Thompson Mechanical Seal3″ T-2 (Tungsten or SiC/SiC)
Item #761VSS/VTS
Cornell & Thompson Mechanical Seal — 3″ T-2 (Tungsten or SiC/SiC)
This 3″ T-2 mechanical seal is a direct-fit replacement for Cornell and Thompson pumps built around a 3.000″ shaft and T-2 arrangement (3.875 seat). Built to OEM-equivalent standards or higher, it’s available in two material builds — choose the one that fits your service.
Cross Reference:
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Thompson: PS-4033 — Q55-5300-1T2
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Cornell: PS-4033 — A20564P-40 ; PS-2710 — A169720-40, N00137-40
Choose Your Material
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Tungsten Carbide / Silicon — the OEM-equivalent material these pumps are specified with from the factory. Our premium option.
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Silicon Carbide / Silicon Carbide / Viton — a lower-cost alternative build for many standard applications.
At a Glance
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Shaft size: 3″ (3.000″)
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Type: T-2 (3.875 seat)
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Seat: O-ring seat with notch
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Material options: Tungsten Carbide/Silicon (OEM-equivalent, premium) or Silicon Carbide/Silicon Carbide/Viton (lower-cost alternative)
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Fits brands: Cornell, Thompson
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Form: Seal assembly only (O-rings/gaskets sold separately)
Material Options Explained
As specified from the factory, these pumps typically use a Tungsten Carbide seal — that’s our OEM-equivalent, premium option, matching the original spec. We also offer a Silicon Carbide/Silicon Carbide/Viton build at a lower price as a cost-effective alternative for many applications. Both are direct-fit; the Tungsten Carbide matches the OEM material, while the SiC/SiC option is the more economical choice.
Applications
Built for 3″ T-2 Cornell and Thompson pumps. Matching from a worn seal or a parts list? Confirm your pump model and shaft size first, or send a photo of the old seal and your pump nameplate to info@sealhouseusa.com, or call/text 561-414-1046. No purchase required — our seal specialists will match it.
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
Cornell Mechanical Seal2″ T-2 (SiC/SiC/Buna)
Cornell Mechanical Seal2″ T-2 (SiC/SiC/Buna)
Item #SH-833VSS
Cornell Mechanical Seal — 2″ T-2
A direct-fit 2″ shaft mechanical seal in the T-2 arrangement for Cornell pumps, built to OEM-equivalent standards or higher. Silicon carbide against silicon carbide with Buna elastomers and an O-ring seat.
At a Glance
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Shaft size: 2″ (2.000″)
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Type: T-2 (O-ring seat)
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Seat: O-ring seat with notch
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Faces: Silicon Carbide / Silicon Carbide
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Elastomers: Buna
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Fits: Cornell A15007D-40 and A17264P-40.
A note on materials
This is built as a silicon carbide seal with Buna elastomers. The footprint matches the Cornell original, but the face and elastomer materials may differ from what your pump shipped with — silicon carbide is the hard-face pairing and suits abrasive duty. If you need to match the original material exactly, call or text 561-414-1046 before ordering and we will confirm what your pump was built with.
Applications
Replaces: Cornell A15007D-40 and A17264P-40.
Cornell pumps run agricultural irrigation and water transfer, municipal and flood control, food processing and industrial service. A 2.000″ shaft puts this in the larger end-suction and mixed-flow machines, where a seal failure means a pulled pump rather than a quick swap — which is the argument for hard faces.
Need Help Matching?
Confirm your pump model and shaft size before ordering. Not sure? Send a photo of the old seal and your pump nameplate to info@sealhouseusa.com, or call or text 561-414-1046 — our seal specialists will match it. No purchase required.
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
Pioneer, Cornell & Thompson Mechanical Seal1-5/8″ T-2 (Tungsten or SiC/SiC)
Pioneer, Cornell & Thompson Mechanical Seal1-5/8″ T-2 (Tungsten or SiC/SiC)
Item #821VSS/VTS
Pioneer, Cornell & Thompson Mechanical Seal — 1-5/8″ T-2 (Tungsten or SiC/SiC)
This 1-5/8″ T-2 mechanical seal is a direct-fit replacement for Pioneer, Cornell, and Thompson pumps built around a 1.625″ shaft and T-2 arrangement (2.375 seat). Built to OEM-equivalent standards or higher, it’s available in two material builds — choose the one that fits your service.
Cross Reference:
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Thompson: PS-3772 — Q55-5162-1T2
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Pioneer: PS-2739 — 30400193 (316SS)
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Cornell: PS-3223 — A17064K-40 (316SS)
Choose Your Material
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Tungsten Carbide / Silicon — the OEM-equivalent material these pumps are specified with from the factory. Our premium option.
-
Silicon Carbide / Silicon Carbide / Viton — a lower-cost alternative build for many standard applications.
At a Glance
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Shaft size: 1-5/8″ (1.625″)
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Type:T-2 (2.375 seat)
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Material options: Tungsten Carbide/Silicon (OEM-equivalent, premium) or SiC/SiC/Viton (lower-cost alternative)
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Fits brands: Pioneer, Cornell, Thompson
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Form: Seal assembly only (O-rings/gaskets sold separately)
Material Options Explained
As specified from the factory, these pumps typically use a Tungsten Carbide seal — that’s our OEM-equivalent, premium option, matching the original spec. We also offer a Silicon Carbide/Silicon Carbide/Viton build at a lower price as a cost-effective alternative for many applications. Both are direct-fit; the Tungsten Carbide matches the OEM material, while the SiC/SiC option is the more economical choice.
Applications
Built for 1-5/8″ T-2 Pioneer, Cornell, and Thompson pumps. Matching from a worn seal or a parts list? Confirm your pump model and shaft size first, or send a photo of the old seal and your pump nameplate to info@sealhouseusa.com, or call/text 561-414-1046. No purchase required — our seal specialists will match it.
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
Pioneer, Cornell & Thompson Mechanical Seal2-1/2″ T-2 (Tungsten or SiC/SiC)
Pioneer, Cornell & Thompson Mechanical Seal2-1/2″ T-2 (Tungsten or SiC/SiC)
Item #835VSS/VTS
Pioneer, Cornell & Thompson Mechanical Seal — 2.500″ T-2 (Tungsten or SiC/SiC)
This 2.500″ T-2 mechanical seal is a direct-fit replacement for Pioneer, Cornell, and Thompson pumps built around a 2.500″ shaft and T-2 arrangement (3.375 seat). Built to OEM-equivalent standards or higher, it’s available in two material builds — choose the one that fits your service.
Cross Reference:
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Thompson: PS-3888 — Q55-2520-1T2
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Pioneer: PS-2740 — 30400194, 730400172 (316SS)
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Cornell: PS-22094 — A16421D-40 (316SS)
Choose Your Material
-
Tungsten Carbide / Silicon— the OEM-equivalent material these pumps are specified with from the factory. Our premium option.
-
Silicon Carbide / Silicon Carbide / Viton — a lower-cost alternative build for many standard applications.
At a Glance
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Shaft size: 2.500″ (2-1/2″)
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Type: T-2 (3.375 seat)
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Material options: Tungsten Carbide/Silicon (OEM-equivalent, premium) or SiC/SiC/Viton (lower-cost alternative)
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Fits brands: Pioneer, Cornell, Thompson
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Form: Seal assembly only (O-rings/gaskets sold separately)
Material Options Explained
As specified from the factory, these pumps typically use a Tungsten Carbide seal — that’s our OEM-equivalent, premium option, matching the original spec. We also offer a Silicon Carbide/Silicon Carbide/Viton build at a lower price as a cost-effective alternative for many applications. Both are direct-fit; the Tungsten Carbide matches the OEM material, while the SiC/SiC option is the more economical choice.
Applications
Built for 2.500″ T-2 Pioneer, Cornell, and Thompson pumps. Matching from a worn seal or a parts list? Confirm your pump model and shaft size first, or send a photo of the old seal and your pump nameplate to info@sealhouseusa.com, or call/text 561-414-1046. No purchase required — our seal specialists will match it.
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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