1). If the Black Ground Wire is Not Already Connected to the CDI Box, Fasten to One of the 4 Mounting Holes on the Outside of . 2). Fasten the Other End of This Black Wire to a Good Ground the Engine. 3). If the Engine Uses an Orange Colored Lead That is Connected to Connect This to the "Black/Yellow" Stud on the New Box. Replaces Part Numbers: 332-7778A12, 332-7778A9, 332-7778A6, 332-7778A3 ,332-5524A1, 332-7778A1, 332-7778A7 Applications: For Mercury 50hp 3cyl 6428681-0D000749 For Mercury 60hp 3cly 6428681-0D000749 For Mercury 65hp 4382057-4571651 For Mercury 70hp 4571652-5128279 For Mariner 70hp 5128280 - Later For Mercury 70hp 5579016-6428680 For Mercury 70hp 3cly 0C272000-0D283221 For Mercury 75hp 3cyl 0C272000-0D283221 For Mercury 80hp 3cyl 0A996142-0C221999 For Mercury 90hp 6cyl 5299506 - Later For Mercury 90hp 3cyl 0A996142-0D283221 For SportJet 90hp 0E023150-0E095087 For Mercury 105hp Jet 0D082000-0G303045 For Mercury 115hp 6cyl 5314656- Later For Mercury V-135 0A904646 - Later For Mercury 140hp 5327663 - Later For Mercury 140hp Jet 0D082000-0G960499 For Mercury V-150 4868998-5129429 For Mercury V-150 XR2 6616991-0A904645 For Mercury XR4 Magnum II 0B242885-0D819999 For Mercury V-150 XR6 0D82000-0G960499 For Mercury V-175 4301235-5180108 For Mercury V-175 EFI 5180109-0G960499 For Mercury V-175 XR1 5180109-0G960499 For Mercury V-200 4839034-5158928 For Mercury V-200 XR1 5158929-0G960499 For Mercury V-220 0B117316 - Later For Mercury V-225 5628028 - Later Material:ABS colour:black Package Contents: 1 x CDI Power Pack Only the above package content, other products are not included. Note: Light 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.