AMT 1478-000-00 Gasket
The AMT 1478-000-00 is the genuine replacement gasket for AMT self-priming pedestal pumps, carried under AMT’s own factory designation 242G-7. It is cut to fit a specific machined joint in the pump, and its purpose is simple but absolutely necessary: it fills the microscopic gaps between two mating metal faces so the pump can hold prime, build pressure and move liquid without weeping at the seam.
A gasket is a one-time-use item, and that is the single most common mistake in pump service. Once it has been torqued down, the material has already crushed and flowed into the surface profile of both faces. Take the joint apart and that compression set does not come back — a reused gasket will not seal to the same torque, and the usual result is a slow drip that turns into lost prime, air ingestion and a pump that runs but will not lift. Fit a new gasket every single time the joint is opened, clean both faces down to bare metal, and tighten evenly in a cross pattern.
This gasket is listed in AMT’s parts breakdowns for the 2820-99, 282P-95 and 2760-99 self-priming pedestal pumps. AMT uses a number of similar-looking gaskets across its range and they are not interchangeable, so confirm the part number against the parts list for your specific pump before ordering. If the nameplate on your pump is no longer readable, send us whatever you can make out and we will help you pin it down.
Key Features
- Genuine AMT (Gorman-Rupp) service part — die-cut to the original pattern, not a trimmed universal sheet
- Seals a machined joint against leakage so the pump holds prime and builds pressure
- Compresses to fill surface irregularities in both mating faces
- Correct thickness maintains the factory clearances the joint was designed around
- Direct replacement — no cutting, trimming or fitting required
Applications
- AMT 2820-99 self-priming pedestal pump
- AMT 282P-95 self-priming pedestal pump
- AMT 2760-99 self-priming pedestal pump
- Routine pump teardown, reseal and rebuild work
- Marine, dockside, washdown, dewatering and general water transfer service
Specifications
- Brand: AMT (Gorman-Rupp)
- Manufacturer Part Number: 1478-000-00
- Factory Designation: 242G-7
- Part Type: Gasket
- Pump Type: Self-priming pedestal pump
- Service Note: Single use — replace whenever the joint is opened
- 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 the correct gasket before you order.
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