Mercury Terminology

Mercury Terminology

While looking through a Mercury product guide or browsing, you may find it difficult to keep up with all of the terminology, abbreviations, and acronyms Mercury uses for its products. Here's a cheat sheet you can use to navigate the plethora of information:

Model Codes

E Electric Start
L Long Shaft (20")
XL X-tra Long Shaft (25")
XXL XX-tra Long Shaft (30")
C Counter-rotating engine
H Tiller Handle
PT Power Trim
O Oil Injected
DFI Direct Fuel Injected (OptiMax engines)
EFI Electronic Fuel Injected
M Manual Start
BF Bigfoot Gearcase (Gearcase with larger gear ratio than standard gearcase)
DTS Digital Throttle & Shift (Used on certain OptiMax and Verado engines)
WOT Wide Open Throttle (Mercury uses this when assessing proper RPM)
RPM Revolutions per Minute (How fast the engine is spinning)
MER Mercury
MAR Mariner
FOR Force
MET Mercury Tracker (Mercury engine with Tracker decals)

So, for example, when you see an engine tag or description that reads 2002 MER 60 ELPTO you now know that this designates a Mercury 60 horsepower Electric start, Long shaft, Power Trim, Oil injected engine.

Hopefully this cheat sheet comes in handy the next time you're looking over an engine you're not familiar with or trying to interpret some information on our Web site.

                                Optimax with underwater scene 
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