Engine Type: OMC Stern Drive Engines Old Stringer 1967–1977 Dimensions (L x W x H): Inner dimensions 35 cm x 30 cm, outer dimensions 46.6 cm x 43.6 cm, thickness 3.5 cm Fit Brand: OMC OEM Part #1: 313080, 0778371 Sierra: 18-2767 Material: Rubber and metal components Design and Style: Engineered for sealing the transom Usage and Purpose: Seals the transom to prevent water intrusion and maintain engine integrity Typical Adaptive Scenario: Suitable for OMC Stern Drive Engines from 1967 to 1977 Shape or Size or Weight or Quantity: 16 screw holes for secure mounting function and Property: Resistant to 105°C, designed for longevity Parts and Accessories: Includes transom seal with 16 screw holes The 16 Screw Holes Transom Seal 313080 is designed for OMC Stern Drive Engines Old Stringer models from 1967 to 1977.It features a combination of rubber and metal components to provide effective sealing at the transom.The rubber material is rated for continuous exposure up to 105°C.The seal has an inner dimension of 35 cm x 30 cm, an outer dimension of 46.6 cm x 43.6 cm, and a thickness of 3.5 cm.It mounts using 16 screw holes to secure attachment.This part is compatible with OEM part numbers 313080 and 0778371, and Sierra 18-2767. This is a non-OEM replacement part.Any trademarks or model numbers cited are used strictly to demonstrate compatibility.