Gorman-Rupp S3B1 Mechanical Seal Set — 1″ (Upper & Lower)

Gorman-Rupp S3B1 Mechanical Seal Set — 1″ (Upper & Lower)

The Gorman-Rupp mechanical seal set is a direct-fit upper and lower seal set for Gorman-Rupp pumps running a 1″ shaft, including the S3B1. It is built to OEM-equivalent standards or higher for the same fit and reliability as the original, with a Carbon/Ceramic upper seal and a Silicon Carbide/Silicon Carbide lower seal.

Important!— Please Read Before Ordering 
This set includes the upper and lower mechanical seals only. It does not include the stainless steel lower stationary holder — you will reuse the one already in your pump.

At a glance:

• Shaft size: 1″ (both seals)

• Upper seal: Carbon / Ceramic

• Lower seal: Silicon Carbide / Silicon Carbide (SiC/SiC)

• Fits pump model: Gorman-Rupp S3B1

• Note: reuse your existing stainless steel lower stationary holder (not included)

What’s Included:

• Upper mechanical seal — Carbon/Ceramic, 1″

• Lower mechanical seal seal — Silicon Carbide/Silicon Carbide, 1″

Applications 
Built for Gorman-Rupp pumps running the 1″ shaft seal arrangement, including the S3B1. Matching from a worn set? Confirm your pump model and shaft size first, or send a photo of the old seals 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 Gorman Rupp Mechancial Seals & 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