SELOC Marine tune-up and repair manuals provide the most comprehensive, authoritative information available for outboard, inboard and stern-drive engines, as well as personal watercraft. SELOC has been the leading source of how-to information for the marine industry since 1974. Designed and written...

30GS 3.0L in-line 4-cylinder (135 HP), 43GL 4.3L V-6 (160 HP), 43GI 4.3L V-6 (180 HP), 43GXI 4.3L V-6 (210 HP), 50GL 5.0L V-8 (220 HP), 50GI 5.0L V-8 (250 HP), 50GXI 5.0L V-8 (270 HP), 57GS 5.7L V-8 (225 HP), 57GS 5.7L V-8 (250 HP), 57GSI 5.7L V-8 (280 H

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Ev-400 P70 sailboat pack, no drive, Mfg# T70161, evolution autopilot system consisting of ACU400 processor, P70 control head, ev-1 sensor, and ev-1 cabling kit. Drive unit not included.

Used On: Polaris Scrambler 400 2x4 4x4 1995-2002

The Sierra 18-2381 Upper Drive Unit Cap is interchangeable with the following: GLM 28400, Mallory 9-78121, Mercruiser 94998A2, 9-4998A4, 94998A1, 94998A3. Each Sierra product meets or exceeds the original equipment part it replaces.