Motor for Mercury 100ELPTO 2-Stroke: heavy-duty replacement for OEM 99186 (12V). Built for reliable field replacement performance.
Fits These Models
Mercury
- 100ELPTO 2-Stroke (1988-1989 — Mercury Marine 100HP)
- 100ELXLPTO 2-Stroke (1988-1989 — Mercury Marine 100HP)
- 115EL 2-Stroke (1984-1985 — Mercury Marine 115HP)
- 115ELPT 2-Stroke (1984-1985 — Mercury Marine 115HP)
- 115ELPTO 2-Stroke (1986-1989 — Mercury Marine 115HP)
- 115EXLPT 2-Stroke (1984-1985 — Mercury Marine 115HP)
- 115EXLPTO 2-Stroke (1986-1989 — Mercury Marine 115HP)
- 135ELPTO 2-Stroke (1986-1988 — Mercury Marine 135HP)
- 135EXLPTO 2-Stroke (1986-1988 — Mercury Marine 135HP)
- 135L 2-Stroke (1989 — Mercury Marine 135HP)
- 135XL 2-Stroke (1989 — Mercury Marine 135HP)
- 150CXL (1989 — Mercury Marine 150HP)
- 150ELPT OI (1984-1985 — Mercury Marine 150HP)
- 150ELPT (1983-1985 — Mercury Marine 150HP)
- 150ELPTO (1986-1988 — Mercury Marine 150HP)
- 150EXLPT OI (1984-1985 — Mercury Marine 150HP)
- 150EXLPT (1983-1985 — Mercury Marine 150HP)
- 150EXLPTO (1986-1988 — Mercury Marine 150HP)
- 150L 2-Stroke (1989 — Mercury Marine 150HP)
- 150XL 2-Stroke (1989 — Mercury Marine 150HP)
See the full fitment table above for all 69 compatible applications.
OEM Cross-Reference Numbers
Replaces the following OEM part numbers: 99186, 99186-1, 99186-T, 991861.
Please verify the OEM reference number and equipment fitment before ordering.








