Aluminium Anode Engine Nut Mercruiser

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Performance Metals Navalloy� aluminium Mercruiser Alpha 1 Gimbal Housing Bolt Head Nut Anodes used on Alpha 1 outdrives. Replaces Mercury 55989Q 9. This product includes 2 neoprene washers and head nut anodes manufactured to the military specification MIL-DTL 24779, making them suitable for use in all water types - salt, brackish or fresh. Note: Aluminium anodes are supplied as standard with Mercury and Mercruiser drives. Use of zinc anodes will invalidate the warranty. Show more