AMT 3150-300-94 Buna / Ceramic Seal and O-Ring Rebuild Kit
The AMT 3150-300-94 is the genuine seal and O-ring rebuild kit in the Buna and ceramic specification. It brings the mechanical seal and the pump’s O-rings together into a single part number, which is the sensible way to buy them: the static seals and the dynamic seal wear on roughly the same timescale, and replacing one without the other is how a rebuilt pump ends up back on the bench.
This is AMT’s standard general-service build, and for the duty it is designed for it is the right choice rather than a compromise. Buna-N (nitrile) handles water, detergents, dilute solutions and the general mixed filth of utility pumping, and it is more abrasion-resistant than several of the more exotic compounds. The ceramic seal seat is hard, dimensionally stable and chemically inert to almost anything a general-purpose pump will see, and running it against carbon gives a quiet, long-lived, self-lubricating face pair.
Where this specification is not the answer is aggressive chemistry, solvents, fuels or sustained heat — those call for the Viton version. Fit the kit complete, handle the lapped seal faces by their edges, wipe them clean immediately before assembly, and check the shaft where the seal rides for scoring. Confirm the part number against the parts breakdown for your pump before ordering.
Key Features
- Genuine AMT (Gorman-Rupp) rebuild kit — mechanical seal and O-rings in one part number
- Ceramic seal seat — hard, stable and chemically inert for general service
- Buna-N (nitrile) elastomers for water, detergents, dilute solutions and abrasive utility duty
- Static and dynamic seals renewed together, so nothing tired is left in the pump
- AMT’s standard general-service specification
Applications
- General water transfer, washdown and utility pumping
- Planned maintenance intervals and pump overhauls
- Returning a leaking or weeping pump to service properly
- Water, detergent and dilute solution duty
- Marine, dockside, dewatering and general service equipment
Specifications
- Brand: AMT (Gorman-Rupp)
- Manufacturer Part Number: 3150-300-94
- Part Type: Seal and O-ring rebuild kit
- Seal Seat Material: Ceramic
- Elastomer: Buna-N (nitrile)
- Best For: Water and general utility service
- Condition: New
Not sure this is the right part? Send us a Picture of the pump plate on your pump and the CLR Marine team will confirm this is the right rebuild kit and what it covers before you order.
CLRMarine
