Fitment: Meets or exceeds original factory specifications. Replacement for Outboards 4 stroke F25 25HP all years and 2 stroke C30 1993-1997. OE: Replaces part numbers for reference: 61N-W0078-11, replacement for Sierra 18-3432. Same shape and function as the original part. Purpose: Designed to repair or replace damaged pump assemblies to help improve outboard motor performance. Direct replacement for old or broken units. Package Includes: Neoprene impeller, wear plate, insert cartridge, water pump gasket, mounting bolts with washer, wrench, water lock, O-ring, Woodruff key, water pump housing. Complete kit with all necessary accessories to reduce installation time. Material: Constructed from seawater-grade stainless steel and rubber materials. Resistant to rust and seawater corrosion. High strength with an improved design for extended service life. Item Type: Water Pump Impeller Rebuild Kit Material: Stainless Steel + Rubber OE Number: 61N-W0078-11, replacement for Sierra 18-3432 Fitment: Replacement for Outboards: 4 STROKE F25, 25HP (ALL YEARS) F25SMHA 0116, F25SMHA 0117, F25SMHA 0409, F25SMHA 0410, F25SMHA_0112, F25SMHA_0411 F25TLR 0405, F25TLRA 2002, F25TLRB 2003, F25TLRC 2004, F25TLRD 2005 F25TLRW 1998, F25TLRX 1999, F25TLRY 2000, F25TLRZ 2001 Package List: 1 x Water Pump Impeller Rebuild Kit (11 pcs) Note: 1. Please double check the part number of your item. Compatibility information is for reference only. 2. If you are unsure about the item, please contact the seller before purchasing to avoid returns.