| AA404 | Muffler jar seal, replacement for seal in muffler assembly (AB609B) |
| AB609B | Muffler assembly with 1/4-inch FNPT, for vane pump assembly (GP-0523) |
| AJ-0523 | Aluminum muffler jar, replacement for jar in muffler assembly (AB609B) |
| AJF-0523 | Muffler filter insert, replacement for filter in muffler assembly (AB609B) |
| AK731 | Gast replacement vanes for pump model GP-0523 (4 required per pump) |
| GP-BL50-2 | Miniature lubricator assembly with 1/4-inch FNPT, for vane pump assembly (E-0523) |
| GP-BL50-R | Lubricator rebuild kit, includes wick, nut, grommet and seal, for GP-BL50-2 lubricator |
| GP-VG321L | Oil, 0523, 1 liter |
| O-026N | Lubricator O-ring for BL-50-2, 0.026-inch diameter |
| GP-0523-RBK | Rebuild kit for 0523 Pump contains two O-ring seals for muffler bowl, two seals for lubricator, one muffler element (GP-745FEL), four vanes, and a lubricator rebuild kit |
| GP-0523-RBKA | Rebuild kit contains two O-ring seals (AA404) for aluminum muffler jar, two seals for lubricator, one muffler element (AJF-0523), four vanes, and a lubricator rebuild kit |
| GP-745N | Muffler, nylon cartridge-style with 1/4-inch FNPT, short clear bowl |
| GP-745FEL | Muffler, filter, element (25-64-60W) |
