For propeller shaft: 2 1/4 "

The product is also available in Aluminum here

Material: Magnesium

Sierra 18-6158Z

Weight : 9

Zinkanod Volvo Penta, axel Ø35, 7/8''UNC, VP 833915, T00720 Total length_154mm/6.06in For propeller shaft: 2 1/4Zinc anode Volvo Penta, shaft 35, 7 8 '' UNC, 833915 anode Material: Zinc Brand: Volvo Penta Specific: Fixed pitch propeller, nut anode Original code: 833915 Fits these Volvo Penta models: Diesel: KAD42P A, KAMD42P A, HS1A,MD2010 C, MD2010 D, MD2020 C, MD2020 D, MD2030 C, MD2030 D, MD2040 C, MD2040 D, 120S D, 120S E, MD6, MD6A, MD6B, MD7, MD7A, MD7B,MD1B, MD2B, AQD2B, MD3B,MD21B, AQD21B, MD5A, MD5B, MD5C, MD11, MD11C, MD11D, MD17, MD17C, MD17D, AD30A,