FASWORX 44357Q2 Outboard Motor Muffs for Mercury Mariner & MerCruiser Sterndrive - Engine Flusher Fits All Side Intakes - Through Gear Case Flushing Kit - Replaces 44357T2, 44357A2, 73971A1, 73971A2

The FASWORX Through Gear Case Flushing Kit is a side-intake flushing attachment used to supply a fresh-water connection for flushing the cooling system on select Mercury/Mariner outboards and MerCruiser sterndrives. It is used to connect a standard garden hose to the gearcase intake area so the cooling system can be flushed with fresh water, and for certain setups to support running at idle during service flushing.

• Universal Freshwater Flushing: Effectively removes salt, silt, and contaminants from your cooling system to prevent corrosion and extend engine life.
• Broad Engine Compatibility: Fits all Mercury and Mariner outboards (20HP and up) and nearly all MerCruiser Sterndrives, including Alpha and Bravo models. Fits Mercury/Mariner 20 HP and higher outboards, 9.9/15 HP FourStroke (323cc) Bigfoot outboards, All Model Year 2005 and Newer 8/9.9 HP Fourstroke outboards, 15 HP FourStroke (351cc) outboards.
• 2000 and newer V-6 outboards and MerCruiser Bravo drives with dual waterpick-up also require Dual Water Pick-Up Flush Seal Kit Part Number 881150Q1.
• High-Flow Water Design: Features large rubber cups that provide maximum water intake coverage to prevent overheating while idling or tuning.
• Marine-Grade Durability: Built with a corrosion-resistant coated steel frame and heavy-duty rubber for a long-lasting, professional-grade tool.
• FASWORX aftermarket replacement built to OEM-style expectations. FASWORX Part Number FWX-07-100