--- product_id: 21503989 title: "PSS Type A Shaft Seal, PYI Inc" brand: "pss shaft seal" price: "Β£846.65" currency: GBP in_stock: true reviews_count: 6 url: https://www.desertcart.co.uk/products/21503989-pss-type-a-shaft-seal-pyi-inc store_origin: GB region: United Kingdom --- # Dripless design Low maintenance USA made PSS Type A Shaft Seal, PYI Inc **Brand:** pss shaft seal **Price:** Β£846.65 **Availability:** βœ… In Stock ## Summary > 🌟 Seal the Deal with Confidence! ## Quick Answers - **What is this?** PSS Type A Shaft Seal, PYI Inc by pss shaft seal - **How much does it cost?** Β£846.65 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/21503989-pss-type-a-shaft-seal-pyi-inc) ## Best For - pss shaft seal enthusiasts ## Why This Product - Trusted pss shaft seal brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Easy Installation:** Designed to seamlessly replace packing glands and lip seals. - β€’ **Professional Grade:** Trusted by marine professionals for reliability and performance. - β€’ **Certified Excellence:** ABS, BV, RINA, and US Coast Guard approved for peace of mind. - β€’ **Unmatched Durability:** Engineered for longevity in harsh marine environments. - β€’ **Cost-Effective Solution:** Say goodbye to frequent replacements and hello to savings. ## Overview The PSS Type A Shaft Seal by PYI Inc is a world-leading, dripless mechanical face seal designed for marine applications. This highly durable and low-maintenance solution is certified by major maritime authorities and proudly manufactured in the USA, making it the ideal choice for both marine and industrial environments. ## Description The PSS Shaft Seal is the #1 selling marine mechanical seal worldwide and is installed as standard equipment by many of the worlds most reputable boat builders and boat yards. The PSS Shaft Seal is also recognized as the premiere retrofit (aftermarket) seal on the world market. Boat builders and boat yards recognize the advantages and value of installing the PSS as it eliminates the maintenance, constant adjustment and cost associated with traditional packing type glands. Aside from these benefits, the PSS Shaft Seal helps to eliminate water in the bilge (100% water tight) and wear to the propeller shaft. The PSS Shaft Seal can be easily retrofitted and is available for shafts ranging from 3/4” to 6” (20mm to 150mm). The PSS 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 the front side of the bellow with hose clamps, and the back end of the bellow fits over the Stern tube and is secured with hose clamps. The stainless-steel rotor is fit on the shaft in front of the carbon flange. The stainless-steel rotor is used to compress the bellow before the rotor is secured to the shaft with set-screws. This compression (pre-load) maintains constant contact between the two flat faces of the stainless-steel rotor and carbon flange, allowing the PSS to compensate for the variable fore and aft movement due to propeller thrust. The carbon flange is over-bored to the shaft diameter allowing it to β€œfloat” around the shaft and thus compensate for most misalignment and vibration problems. The stainless-steel rotor is sealed to the shaft by two O-rings that are recessed into the bore of the collar. These O-rings rotate with the shaft and stainless-steel rotor and do not experience wear during operation. ## Features - World leading dripless mechanical face seal for marine applications. - Ideal replacement for packing glands and lip seals in marine or industrial environments - Highly durable, low maintenance and cost-effective solution. - Certified by ABS, BV (or Bureau Veritas), RINA, and US Coast Guard approved. - Manufactured in the USA. ## Technical Specifications | Specification | Value | |---------------|-------| | Item Package Dimensions L x W x H | 13 x 8.5 x 7.25 inches | | Package Weight | 11 Pounds | | Item Dimensions LxWxH | 13 x 8.5 x 7.25 inches | | Item Weight | 10.5 Pounds | | Brand Name | PSS Shaft Seal | | Model Name | 02-300-412 | | Number of Items | 1 | | Manufacturer | Seaview -- Dropship | | Part Number | 02-300-412 | | Style | 4 1/2 Inch Diameter Stern Tube / Shaft Log | | Included Components | Shaft Seal | | Size | 3 Inch Shaft Diameter | ## Images ![PSS Type A Shaft Seal, PYI Inc - Image 1](https://m.media-amazon.com/images/I/61Cm7hxpAjL.jpg) ![PSS Type A Shaft Seal, PYI Inc - Image 2](https://m.media-amazon.com/images/I/51Lrk+DJepL.jpg) ## Available Options This product comes in different **Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Amazing product and outstanding customer service!! *by K***H on Reviewed in the United States on April 12, 2020* This product is very high quality and customer support is just a phone call away. This company and product is outstanding! ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars It appears even more sturdy than the old one (which lasted 20 years) *by B***D on Reviewed in the United States on February 28, 2018* I replaced an older model with this new one. It appears even more sturdy than the old one (which lasted 20 years). ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Make sure your shaft size is right *by B*** on Reviewed in the United States on November 27, 2019* Perfect fit. Works very well --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/21503989-pss-type-a-shaft-seal-pyi-inc](https://www.desertcart.co.uk/products/21503989-pss-type-a-shaft-seal-pyi-inc) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-16*