SKU: 21826108836

PSS PRO Shaft Seal 1-1/2" Shaft & 2-1/4" Tube

Sale price$248.04 Regular price$275.60
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Ships within 48 hours · Estimated delivery Jul 30 - Aug 4

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Description

PSS PRO Shaft Seal 1-1/2" Shaft & 2-1/4" TubePRO Shaft Seal 1 1 2" Shaft & 2 1 4" Tube The PSS PRO Shaft Seal is a mechanical face seal utilizing our proven stainless steel and carbon sealing components but adds reinforced silicone bellows, a secondary shaft retention collar, 316 Stainless Steel hose clamps (rolled edges and non perforated), and an optional Nitronic 50 rotor upgrade (for highly corrosive environments). Designed specifically for applications that will require increased durability

PRO Shaft Seal 1-1/2" Shaft & 2-1/4" Tube

The PSS PRO Shaft Seal is a mechanical face seal utilizing our proven stainless steel and carbon sealing components but adds reinforced silicone bellows, a secondary shaft retention collar, 316 Stainless Steel hose clamps (rolled edges and non-perforated), and an optional Nitronic 50 rotor upgrade (for highly corrosive environments). Designed specifically for applications that will require increased durability and resistance to harsh, corrosive, high pressure, and otherwise demanding environments. The PSS PRO Shaft Seal is a specialized mechanical seal suitable for various applications, with unmatched performance.

As with PSS Type A & B Seals, The PRO Shaft Seal is a mechanical face seal. The sealing surface is created between the flat surfaces of the rotating stainless-steel rotor and the stationary carbon flange. The stationary carbon flange is attached to a heavy-duty silicone bellows attached to the vessel’s stern tube (shaft log), with 316SS hose clamps. The stainless-steel rotor is fitted on the shaft in front of the carbon flange and is used to compress the bellows, the rotor is then secured to the shaft with set screws, and the shaft retention collar is installed. This compression (pre-load) maintains constant contact between the two mating faces of the stainless-steel rotor and carbon flange, allowing the PSS to compensate for the variable axial movement due to propeller thrust. In addition, the carbon flange is over-bored to the shaft diameter allowing it to "float" around the shaft and thus compensate for most misalignment and vibration from the drive-line. The stainless-steel rotor is sealed to the shaft by two O-rings recessed into the rotor's bore. These O-rings rotate with the shaft and the stainless-steel rotor and therefore do not experience wear during operation.

Specifications:

  • Temperature Limits: -13°F to 425°F (-25°C to 220°C)
  • Pressure Limits: 40 PSI (2.75 BAR)
  • Shaft RPM Limits: 10,000 RPM
  • Carbon Graphite: Lapped to 4 HLB (0.000044" tolerance)
  • 316SS / Nitronic 50: Faced to 9 Ra
  • Bellow Material: Molded formed silicone / fabric

Product Dimensions:

  • Shaft Dia. (A) 1-1/2"
  • Stern Tube Dia. (B) 2-1/4" to 2-3/8"
  • Uncompressed Length (C) 8.968" 
  • Approx. Compressed Length 7.968" 
  • Rotor Diameter (D) 3.75"
  • Stern Cuff Length (E) 1.3"

Manufacturer : PSS Shaft Seal
Manufacturer Part No : 03-112-214
UPC : 015568069840
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 21826108836

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4.0 ★★★★★
Based on 22 reviews
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J
Verified Purchase
Juan Pena Haddock
Belleville, US
★★★★★ 5
Works well
Good product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026
S
Verified Purchase
St. Paul Girl
Battle Creek, US
★★★★★ 5
what a difference !
Note: there are no English instructions. I wanted this cleaning agent to disperse throughout the nooks and crannies of the engine, so about ten minutes before arriving at the mechanic's shop for my oil change appointment, I pulled the car over and poured this into the engine, then drove it the rest of the way there. The mechanic reported lots of sludge drained out with the oil. The engine seems to perform and sound better, as if it's not working as hard.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 15, 2026
A
Verified Purchase
Andres Moreno
Grantham, US
★★★★★ 4
Buen producto
Buen producto, limpia perfectamente el motor interno y se libera la suciedad en el cambio de aceite. no use todo el contenido, creo que es bueno usarlo en 2 cambios de aceite para una mayor eficiencia.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 29, 2026
L
Verified Purchase
Lee Nunn
Cuba, US
★★★★★ 5
Great will use it over and over again
I will use this in every car I own from now. Cleaned it real well did exactly what it said so and my truck runs a lot better definitely can tell the difference.. it was work the extra oil and work. The bottle I bought came with instructions in English, which made it easy for me. The quality of it is light brake cleaner, but meant for engines and it ran great very easy to use this pour in.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 19, 2025
B
Verified Purchase
Beni
Waukegan, US
★★★★★ 5
Does its job.
Always a go to before oil changes. Helps remove some extra sludge/deposits. DO NOT DRIVE OR REV THE VEHICLE WHEN USNG THE PRODUCT, only idle for 10-15 min. Ive seen reviews where people drove with it potentially ruining the engine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 26, 2026

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