FSM O-Ring Seal Kit - Fuel Supply Module Repair Kit for Mercury, Mariner, and MerCruiser 65-400HP 4-Stroke Outboard and Sterndrive Engines
Complete FSM seal kit with all o-rings, isolators, and seals needed to service the fuel supply module. Premium FKM fluoroelastomer material for fuel system compatibility. Fits FSM 880596T51 housing and 880596T50 cover. Serial number 2A5755398 and below.
OEM PART NUMBERS:
Mercury: 8M0057679 (superseded by 8M0133370)
Mercury: 26-880596A01, 600-107-10
Sub-Parts: 26-880596502, 26-880596506, 26-880596507, 26-880596509, 26-880596510, 25-880596517
SPECIFICATIONS:
Type: FSM O-Ring Seal Kit
Material: Rubber and FKM Fluoroelastomer
Fits FSM Housing: 880596T51
Fits FSM Cover: 880596T50
Serial Number: 2A5755398 and Below
Condition: Brand New
APPLICATIONS:
4-Cyl 4-Stroke: 65HP (2014), 75HP EFI (2009-2012), 80HP (2009-2014), 90HP EFI (2009-2012), 100HP (2009-2014), 115HP (2009-2014), 150HP (2009-2021)
6-Cyl 4-Stroke: 200HP (2009-2014), 225HP (2009-2014), 250HP (2009-2014), 275HP (2009-2010), 300HP (2009-2014)
6-Cyl Verado: 350HP (2009-2014), 400HP (2015-2018)
MerCruiser: 4.5L MPI, 6.2L MPI Sterndrive
All Mariner models by part number
⚠️ Verify OEM part number and serial number from your original unit before ordering.