The bolt patterns are universal. Fits the top bolt pattern of outboard motors. Provides added strength and support to the transom. Helps balance and distribute stress from the outboard engine bolts. This support plate is recommended for enhancing transom durability. Simple installation: Attach directly to the top bolt holes of outboard engines. Specifications: - 1 piece - Application: Universal fit for most outboard engines with standard bolt mounting patterns - High Performance: Designed to distribute stress from engine bolts, providing additional transom support and protection - Product Features: Fits the top bolt pattern of outboard motors. 13-inch bolt hole pattern matches standard top bolt configurations - Superior Material: Made of high-quality cast aluminum, resistant to rust and corrosion, ensuring durable and long-lasting performance Note: Installation guide not included. Professional installation is strongly recommended. Please verify compatibility before installation. Product design may vary slightly between batches, including minor differences in color or finish, which do not affect functionality. Color: As shown Material: Aluminum Package Contents: 1 x Engine Transom Support Plate (other items not included) Note: Lighting and display settings may cause slight variations in color appearance. Measurement tolerance: +/- 1-3 cm.