Item Type: Propeller Installation Hardware Kit Material: Aluminium alloy and metal Gross Weight: 88g/3.1oz Package List 1 x Nut 1 x Thrust Washer 1 x Spacer 1 x Cotter Pin 1Applicable: This propeller installation hardware kit is applicable for 1520 horsepower engine, and the part numbers are 6E7 45987 01, 90201 10M01, 90171 10M01, 91490 30020. 2Well Designed: The marine prop nut kit is well designed, and it is also easy to install and disassemble, which can replace the old or damaged. 3Practical: The upgrade marine prop nut kit is simple in design, light and compact, so that this kit is easy to carry and use, convenient and practical. 4Premium Material: This propeller installation hardware kit is made of premium aluminium alloy and metal which is durable to use. 5Good Replacement: This upgrade propeller installation hardware kit has good performance which is great replacement for the old kit.