Powerful Functions: The bolt patterns are universal. Fit top bolt pattern of outboard. Fits great and adds strength to your om. Helps balance and distribute stress of your outboard engine bolts. This support plate should be standard on all outboards for adding om support. Simple Installation: Directly install to the top bolt holes of outboard engines. -1: [Application]Universal for most outboards engines with the same bolt mounting patterns. [High Performance]Designed to distributes stress of outboard engine bolts for added om support, protecting the om from damage. [Product Features]Fit top bolt pattern of outboard. The 13inch bolt hole pattern fits standard top bolt holes. [Superior Material]Made of highest quality cast Aluminum, prevent and rust, ensures construction and long-lasting performance. -2DP [Application] Fits for all outboard motors er than 1986 that do not have twist clamps. (Note: Not fits for 2000 DT25C and for .) [High Performance]Designed to add extra support for your boat's outboard motor and keep it safely balanced with this sturdy, distributes the stress of motor engine bolts. [Superior Material]Made of top quality Aluminum, ensures construction and long-lasting performance. [Easy to Install]All plates are 3/8inch thick. Bolt-on installation, 2 pre-drilled holes makes it more simple to install. Mounting hardware not included. Note: Installation guide not included, we strongly recommend you professional installation. Please check as much as possible to make sure the item is what you need. Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Color: Silver Material: Aluminum Alloy Package Contents: 2 * Stern support plates (-1 and -2DP) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.