Indmar 551045 Marine Circulation Pump Replacement Indmar 551045 Marine Circulation Pump Replacement Suit Indmar enginess: GM small block 5.7L (350 CU IN) & 6.2L (383 CU IN) engines Circulation pump features a brass impeller for saltwater and freshwater use, and includes mounting gaskets MSRP: Was: Now: $230.00 Add to Cart