Description: Item Type: 90 Amp Fuse Assembly kit, with 13/32 in (10 mm) diameter mounting hole. 88-79023A91, 8879023A91. Fitment: For Mercruiser 3.0L 4.3L 5.0L 5.7L 6.2L 7.4L engines ,18-8220 ,9-15510. Used with 18-5953 alternator conversion kits installed for MERCRUISER (model 470) 3.7 liter aluminum block engines serial number 6902288 & up. Durable Material: Made of stable Plastic + Alloy + Copper. Directly Replace: All of our products undergo strict quality tests, replacement for your old or broken parts. Simple Installation: Easy to install, no complicated procedures needed. Specification: Material: Plastic + Alloy + Copper Size: Approx. 50MM/ 1.97inch Color:As shown Package Includes: 1 Set Starter Fuse Assembly Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.