SE421 Lower Unit Yamaha | Sterndrive Engineering 90-421 Damper Plates - Crusader 4 bolts and nuts hold

4 bolts and nuts hold steering cable to the helm

EFI engines from 1996-up with Thunderbolt ignition systems

0 Liter Fluid Extractor | Moeller 035330

Model 2300 Marine Carburetor | Holley 0-80320-1

or surface mounting

SE421 Lower Unit Yamaha | Sterndrive Engineering 90-421 Damper Plates - Crusader 4 bolts and nuts holdSE421 Lower Unit Yamaha SEI 90 421 SE421 Lower Unit Yamaha by Sterndrive Engineering part# 90 421 (Replaces some Yamaha V6 2 & 4 Stroke) Replaces most Yamaha 76 Degree V6 The paint color is Black. You can paint it to match. Not designed for Yamaha F250 four stroke 250 HP motors Addition Information SE421 Lower Unit Yamaha Sterndrive Engineering 90 421 These replacement lower units, including all of the internal parts, are fully compatible and