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Gasket 27-42999T

Satisfaction rating 5 out of 5 (9 Ratings)
$9.99
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Last update: 120 days ago Update Now

Product Description

Mercury factory part. Search for more factory parts & parts diagrams.

Product Questions

There are no questions for this product. Ask a new question and receive an answer, directly from our support staff.

9 Product Reviews

by

fast service
by

Mercury 200 hp

Repair Difficulty
Easy
Repair Time
Less than 30 mins
Very helpful
by

Problem fixed: Oil reservoir

Took old reservoir off and replaced with new one

Got the right part, fast. Worked great.
by

by

Easy to find the correct parts. Fair prices. Shipping a little slow, but decent pricing.
by

by

1998 225 Optimax Mercury engine

Repair Difficulty
Easy
Repair Time
30 to 60 mins
Got everything I needed to repair my problem without leaving the house and no local dealer had the part I needed. Up and running again. Thanks Crowley Marine!
by

Problem fixed: Oil warning horn would go off and my Optimax would shut down to idle speed only.

We removed the cowl and opened the cap on the large on board tank. unplugged the sensor leads, unbolted the tank on the side of the engine, and unhooked the oil lines on the tank. Luckily we had placed shop towels under the tank before remove catching most of the lost oil from the tank removal process. Put everything back in reverse order, put new sensor in place, added new cap gasket, filled the tanks, and tightened the caps. I am good to go now. Again thanks Crowley Marine.

225 HP MERC EFI OUTBOARD

Repair Difficulty
Easy
Repair Time
Less than 30 mins
ALWAYS HAS BEEN EXCELLENT.
by

Problem fixed: OIL LEAKING FROM TANKS

REMOVED CAPS . REPLACED GASKET AND O RINGS. LEAK STOPPED

Product Fitment Grid

This guide is to be used as a reference only. You must verify fitment using your model or serial number.

BRAND MODEL 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 VARIOUS YEARS
Mariner Outboard 75 [ELHPTO] - - x x x x x - - - - - - - - - - - - - -
Mariner Outboard 75 [ELH] - - x - - - - - - - - - - - - - - - - - -
Mariner Outboard 75 [ELO] x x x x - - - - - - - - - - - - - - - - -
Mariner Outboard 75 [ELPTO] x x x x x x x - - - - - - - - - - - - - -
Mariner Outboard 90 [ELHPTO] - - - - x x x - - - - - - - - - - - - - -
Mariner Outboard 90 [ELO] x x - - - - - - - - - - - - - - - - - - -
Mariner Outboard 90 [ELPTO] x x x x x x x - - - - - - - - - - - - - -
Mariner Outboard 100 [ELPTO] - x x x x x x - - - - - - - - - - - - - -
Mariner Outboard 100 [EXLPTO] - x x - - - - - - - - - - - - - - - - - -
Mariner Outboard 115 [ELPTO] - - x x x x x - - - - - - - - - - - - - -
Mariner Outboard 115 [ELPT] - - - x - - - - - - - - - - - - - - - - -
Mariner Outboard 115 [EXLPTO] - - x x x x x - - - - - - - - - - - - - -
Mariner Outboard 200DFI [CXL DIG SW] - - - - - - - - - - - - - x x - - - - - -
Mariner Outboard 200DFI [CXL SW] - - - - - - - - - - - - - x x - - - - - -
Mariner Outboard 200DFI [CXL] - - - - - - - - - - x x x - - - - - - - -
Mariner Outboard 200DFI [CXXL DIGSW] - - - - - - - - - - - - - x x - - - - - -
Mariner Outboard 200DFI [CXXL SW] - - - - - - - - - - - - - x x - - - - - -
Mariner Outboard 200DFI [CXXL] - - - - - - - - - - - x x - - - - - - - -
Mariner Outboard 200DFI [L DIG] - - - - - - - - - - - - - x x x - - - - -
Mariner Outboard 200DFI [L] - - - - - - - - - - x x x x x - - - - - -
Mariner Outboard 200DFI [XL DIG SW] - - - - - - - - - - - - - x x x - - - - -
Mariner Outboard 200DFI [XL SW] - - - - - - - - - - - - - x x - - - - - -
Mariner Outboard 200DFI [XL] - - - - - - - - - - x x x - - - - - - - -
Mariner Outboard 200DFI [XXL DIG SW] - - - - - - - - - - - - - x x - - - - - -
Mariner Outboard 200DFI [XXL SW] - - - - - - - - - - - - - x x - - - - - -
Mariner Outboard 200DFI [XXL] - - - - - - - - - - - x x - - - - - - - -
Mariner Outboard 200EFI [L] - - - - - - - - - - - - - x - - - - - - -
Mariner Outboard 225 [CXL CARB] - - - - - - - - - - - x x x - - - - - - -
Mariner Outboard 225 [CXL EFI SW] - - - - - - - - - - - - - x x - - - - - -
Mariner Outboard 225 [CXL EFI] - - - - - - - - - x x x - - - - - - - - -
Mariner Outboard 225 [CXL] - - - - - - - x x x x x x x - - - - - - -
Mariner Outboard 225 [CXXL CARB] - - - - - - - - - - - x x x - - - - - - -
Mariner Outboard 225 [CXXL EFI] - - - - - - - - - x x x x x x - - - - - -
Mariner Outboard 225 [CXXL] - - - - - - - x x x x - - - - - - - - - -
Mariner Outboard 225 [EFI] - - - - - - - - - - x x x - - - - - - - -
Mariner Outboard 225 [L CARB] - - - - - - - - - - - x x - - - - - - - -
Mariner Outboard 225 [L EFI] - - - - - - - - x x x - - x x x x x - - -
Mariner Outboard 225 [L] - - - - - - - x x x x - - x x - - - - - -
Mariner Outboard 225 [XL CARB] - - - - - - - - - - - x x - - - - - - - -
Mariner Outboard 225 [XL EFI SW] - - - - - - - - - - - - - x x x x x x x -
Mariner Outboard 225 [XL EFI] - - - - - - - - - x x x - - - x x - - - -
Mariner Outboard 225 [XL] - - - - - - - x x x x - x x x - - - - - -
Mariner Outboard 225 [XXL CARB] - - - - - - - - - - - x x x - - - - - - -
Mariner Outboard 225 [XXL EFI SW] - - - - - - - - - - - - - x x - - - - - -
Mariner Outboard 225 [XXL EFI] - - - - - - - - - x x x x - - - - - - - -
Mariner Outboard 225 [XXL] - - - - - - - x x x x - - - - - - - - - -
Mariner Outboard 225DFI - - - - - - - - - - - - x - - - - - - - -
Mariner Outboard 225DFI [CXL DIG SW] - - - - - - - - - - - - - x x - - - - - -
Mariner Outboard 225DFI [CXL SW] - - - - - - - - - - - - - x x - - - - - -
Mariner Outboard 225DFI [CXL] - - - - - - - - - - - x x - - - - - - - -
Mariner Outboard 225DFI [CXXL DIGSW] - - - - - - - - - - - - - x x - - - - - -
Mariner Outboard 225DFI [CXXL SW] - - - - - - - - - - - - - x x - - - - - -
Mariner Outboard 225DFI [CXXL] - - - - - - - - - - - x x - - - - - - - -
Mariner Outboard 225DFI [L DIG] - - - - - - - - - - - - - x x x - - - - -
Mariner Outboard 225DFI [L] - - - - - - - - - - - x x x x - - - - - -
Mariner Outboard 225DFI [XL DIG SW] - - - - - - - - - - - - - x x x - - - - -
Mariner Outboard 225DFI [XL SW] - - - - - - - - - - - - - x x - - - - - -
Mariner Outboard 225DFI [XL] - - - - - - - - - - - x x - - - - - - - -
Mariner Outboard 225DFI [XXL DIG SW] - - - - - - - - - - - - - x x - - - - - -
Mariner Outboard 225DFI [XXL SW] - - - - - - - - - - - - - x x - - - - - -
Mariner Outboard 225DFI [XXL] - - - - - - - - - - - x x - - - - - - - -
Mariner Outboard 225EFI [L SW] - - - - - - - - - - - - - - - - - - - x -
Mariner Outboard 225EFI [L] - - - - - - - - - - - - - - - x x x x x -
Mariner Outboard 250 [CXL EFI SW] - - - - - - - - - - - - - x x x x - - - -
Mariner Outboard 250 [CXL EFI] - - - - - - - - - x x x x - - - - - - - -
Mariner Outboard 250 [CXXL EFI] - - - - - - - - - x x x x x x - - - - - -
Mariner Outboard 250 [XL EFI SW] - - - - - - - - - - - - - x x x x x x x -
Mariner Outboard 250 [XL EFI] - - - - - - - - - x x x x - - - - - - - -
Mariner Outboard 250 [XXL EFI SW] - - - - - - - - - - - - - x x - - - - - -
Mariner Outboard 250 [XXL EFI] - - - - - - - - - x x x x - - - - - - - -
Mercury Outboard 70 [ELHPTO] - x - - - - - - - - - - - - - - - - - - -
Mercury Outboard 70 [ELO] x x x - - - - - - - - - - - - - - - - - -
Mercury Outboard 70 [ELPTO] x x x - - - - - - - - - - - - - - - - - -
Mercury Outboard 75 [ELHPTO] - - - x x x x - - - - - - - - - - - - - -
Mercury Outboard 75 [ELO] - - - x x - - - - - - - - - - - - - - - -
Mercury Outboard 75 [ELPTO] - - - x x x x - - - - - - - - - - - - - -
Mercury Outboard 75 [MLH] - - - - - - x - - - - - - - - - - - - - -
Mercury Outboard 75 [MXLH] - - - - - - x - - - - - - - - - - - - - -
Mercury Outboard 80 [ELO] x x x - - - - - - - - - - - - - - - - - -
Mercury Outboard 80 [ELPTO] x x x - - - - - - - - - - - - - - - - - -
Mercury Outboard 90 [ELHPTO] - - - - x x x - - - - - - - - - - - - - -
Mercury Outboard 90 [ELO] x x - - - - - - - - - - - - - - - - - - -
Mercury Outboard 90 [ELPTO] x x x x x x x - - - - - - - - - - - - - -
Mercury Outboard 90 [EL] - - - x - - - - - - - - - - - - - - - - -
Mercury Outboard 100 [ELO] - x - - - - - - - - - - - - - - - - - - -
Mercury Outboard 100 [ELPTO] - x x x x x x - - - - - - - - - - - - - -
Mercury Outboard 100 [EXLPTO] - x x - - - - - - - - - - - - - - - - - -
Mercury Outboard 115 [ELPTO] - - x x x x x - - - - - - - - - - - - - -
Mercury Outboard 115 [EXLPTO] - - x x x x x - - - - - - - - - - - - - -
Mercury Outboard 200DFI - - - - - - - - - - - - - - - x - - - - -
Mercury Outboard 200DFI [CXL DIG SW] - - - - - - - - - - - - - x - x - - - - -
Mercury Outboard 200DFI [CXL DIG] - - - - - - - - - - - - - - x x - - - - -
Mercury Outboard 200DFI [CXL SW] - - - - - - - - - - - - - x x - - - - - -
Mercury Outboard 200DFI [CXL] - - - - - - - - - - x x x x - - - - - - -
Mercury Outboard 200DFI [CXXL DIGSW] - - - - - - - - - - - - - x x x - - - - -
Mercury Outboard 200DFI [CXXL SW] - - - - - - - - - - - - - x x - - - - - -
Mercury Outboard 200DFI [CXXL] - - - - - - - - - - - x x - - - - - - - -
Mercury Outboard 200DFI [L DIG] - - - - - - - - - - - - - x x x - - - - -
Mercury Outboard 200DFI [L] - - - - - - - - - - x x x x x - - - - - -
Mercury Outboard 200DFI [XL DIG SW] - - - - - - - - - - - - - x x x - - - - -
Mercury Outboard 200DFI [XL DIG] - - - - - - - - - - - - - x x x - - - - -
Mercury Outboard 200DFI [XL SW] - - - - - - - - - - - - - x x - - - - - -
Mercury Outboard 200DFI [XL] - - - - - - - - - - x x x x x - - - - - -
Mercury Outboard 200DFI [XXL DIG SW] - - - - - - - - - - - - - x - x - - - - -
Mercury Outboard 200DFI [XXL DIG] - - - - - - - - - - - - - - x - - - - - -
Mercury Outboard 200DFI [XXL SW] - - - - - - - - - - - - - x x - - - - - -
Mercury Outboard 200DFI [XXL] - - - - - - - - - - - x x - - - - - - - -
Mercury Outboard 200EFI [L] - - - - - - - - - - - - - - - - x x x x -
Mercury Outboard 225 [CXL] - - - - - - - x x x x x x x x - - - - - -
Mercury Outboard 225 [CXXL EFI] - - - - - - - - - - - x - - - - - - - - -
Mercury Outboard 225 [CXXL] - - - - - - - x x x x x x x - - - - - - -
Mercury Outboard 225 [L] - - - - - - - x x x x x x x - - - - - - -
Mercury Outboard 225 [XL] - - - - - - - x x x x x x x x - - - - - -
Mercury Outboard 225 [XXL] - - - - - - - x x x x x x x - - - - - - -
Mercury Outboard 225DFI [CXL DIG SW] - - - - - - - - - - - - - x x x - - - - -
Mercury Outboard 225DFI [CXL DIG] - - - - - - - - - - - - - - x x - - - - -
Mercury Outboard 225DFI [CXL SW] - - - - - - - - - - - - - x x - - - - - -
Mercury Outboard 225DFI [CXL] - - - - - - - - - - - x x x x - - - - - -
Mercury Outboard 225DFI [CXXL DIGSW] - - - - - - - - - - - - - x x x - - - - -
Mercury Outboard 225DFI [CXXL SW] - - - - - - - - - - - - - x x - - - - - -
Mercury Outboard 225DFI [CXXL] - - - - - - - - - - - x x - - - - - - - -
Mercury Outboard 225DFI [L DIG] - - - - - - - - - - - - - x x x - - - - -
Mercury Outboard 225DFI [L] - - - - - - - - - - - x x x x - - - - - -
Mercury Outboard 225DFI [XL DIG SW] - - - - - - - - - - - - - x x x - - - - -
Mercury Outboard 225DFI [XL DIG] - - - - - - - - - - - - - - - x - - - - -
Mercury Outboard 225DFI [XL SW] - - - - - - - - - - - - - x x - - - - - -
Mercury Outboard 225DFI [XL] - - - - - - - - - - - x x x x - - - - - -
Mercury Outboard 225DFI [XXL DIG SW] - - - - - - - - - - - - - - - x - - - - -
Mercury Outboard 225DFI [XXL DIG] - - - - - - - - - - - - - x x - - - - - -
Mercury Outboard 225DFI [XXL SW] - - - - - - - - - - - - - x x - - - - - -
Mercury Outboard 225DFI [XXL] - - - - - - - - - - - x x - - - - - - - -
Mercury Outboard 225EFI [CXL SW] - - - - - - - - - - - - - x x x x x x - -
Mercury Outboard 225EFI [CXL] - - - - - - - - x x x x x x - x x x x x -
Mercury Outboard 225EFI [CXXL SW] - - - - - - - - - - - - - - - - x x x x -
Mercury Outboard 225EFI [CXXL] - - - - - - - - - x x - x x x x - - - - -
Mercury Outboard 225EFI [EFI] - - - - - - - - - - - - - x - - - - - - -
Mercury Outboard 225EFI [L CARB] - - - - - - - - - - - - - - - - - x - - -
Mercury Outboard 225EFI [L SW] - - - - - - - - - - - - - - - - - - - x -
Mercury Outboard 225EFI [L] - - - - - - - - x x x x x x x x x x x x -
Mercury Outboard 225EFI [XL SW] - - - - - - - - - - - - - x x x x x x x -
Mercury Outboard 225EFI [XL] - - - - - - - - x x x x x - - x x x x x -
Mercury Outboard 225EFI [XXL SW] - - - - - - - - - - - - - x x x x - x x -
Mercury Outboard 225EFI [XXL] - - - - - - - - x x x x x - - - - x - - -
Mercury Outboard 250 [CXL EFI SW] - - - - - - - - - - - - - - x x x x x - -
Mercury Outboard 250 [CXL EFI] - - - - - - - - - x x x x x - - - - - - -
Mercury Outboard 250 [CXXL EFI] - - - - - - - - - x x x x x - - - - - - -
Mercury Outboard 250 [XL EFI SW] - - - - - - - - - - - - - - x x x x x - -
Mercury Outboard 250 [XL EFI] - - - - - - - - - x x x x x - - - - x - -
Mercury Outboard 250 [XXL EFI SW] - - - - - - - - - - - - - x x x x - - - -
Mercury Outboard 250 [XXL EFI] - - - - - - - - - x x x x - - - x - x - -
Mercury Outboard 250EFI [CXL SW] - - - - - - - - - - - - - - - - - - x x -
Mercury Outboard 250EFI [CXXL SW] - - - - - - - - - - - - - - x x x x x x -
Mercury Outboard 250EFI [L PRO XB] - - - - - - - - - - - - - x x x - - - - -
Mercury Outboard 250EFI [L] - - - - - - - - - - - x - - - - - x x - -
Mercury Outboard 250EFI [XL] - - - - - - - - - - - - - - - - - x x x -
Mercury Outboard 250EFI [XXL SW] - - - - - - - - - - - - - - - - - - x x -
Mercury Race Outboard 250 XS [CXL FM] - - - - - - - - - - - - - - - - x x - - -
Mercury Race Outboard 250 XS [CXXL FM] - - - - - - - - - - - - - - - - x x - - -
Mercury Race Outboard 250 XS [L NO G/C] - - - - - - - - - - - - - - - - - x - - -
Mercury Race Outboard 250 XS [L SM] - - - - - - - - - - - - - - - - x x - - -
Mercury Race Outboard 250 XS [L TM] - - - - - - - - - - - - - - - - x x - - -
Mercury Race Outboard 250 XS [OPTIMAX] - - - - - - - - - - - - - - - - x - - - -
Mercury Race Outboard 250 XS [XL FM] - - - - - - - - - - - - - - - - x x - - -
Mercury Race Outboard 250 XS [XL NO G/C] - - - - - - - - - - - - - - - - x - - - -
Mercury Race Outboard 250 XS [XXL FM] - - - - - - - - - - - - - - - - x x - - -
Mercury Race Outboard 250 XS [XXL NO G/C] - - - - - - - - - - - - - - - - x - - - -
Mercury Race Outboard 3.0L [CL] - - - - - - - - - - - - x - - - - - - - -
Mercury Race Outboard 3.0L [L MAGNUM] - - - - - - - - - - - x - - - - - - - - -
Mercury Race Outboard 3.0L [L] - - - - - - - - - - - - x - - - - - - - -
Mercury Race Outboard 3.0L [PRO-MAX] - - - - - - - - - - - x x - - - - - - - -
Mercury Race Outboard 300 PM [CL FM] - - - - - - - - - - - - - x - - - - - - -
Mercury Race Outboard 300 PM [CL SM] - - - - - - - - - - - - - x - - - - - - -
Mercury Race Outboard 300 PM [CXL FM] - - - - - - - - - - - - - x - - - - - - -
Mercury Race Outboard 300 PM [CXL SM] - - - - - - - - - - - - - x - - - - - - -
Mercury Race Outboard 300 PM [L FM] - - - - - - - - - - - - - x - - - - - - -
Mercury Race Outboard 300 PM [L NO G/C] - - - - - - - - - - - - - x - - - - - - -
Mercury Race Outboard 300 PM [L SM] - - - - - - - - - - - - - x - - - - - - -
Mercury Race Outboard 300 PM [L TM] - - - - - - - - - - - - - x - - - - - - -
Mercury Race Outboard 300 PM [L] - - - - - - - - - - - - - x - - - - - - -
Mercury Race Outboard 300 PM [RACE] - - - - - - - - - - - - - x - - - - - - -
Mercury Race Outboard 300 PM [XL FM] - - - - - - - - - - - - - x - - - - - - -
Mercury Race Outboard 300 PM [XL NO G/C] - - - - - - - - - - - - - x - - - - - - -
Mercury Race Outboard 300 PM [XL SM] - - - - - - - - - - - - - x - - - - - - -
Mercury Race Outboard 300 X [CL SM] - - - - - - - - - - - - - - x x x x x - -
Mercury Race Outboard 300 X [CXL FM] - - - - - - - - - - - - - - x x x x x - -
Mercury Race Outboard 300 X [L NO G/C] - - - - - - - - - - - - - - x x x x x - -
Mercury Race Outboard 300 X [L SM] - - - - - - - - - - - - - - x x x x x - -
Mercury Race Outboard 300 X [L TM] - - - - - - - - - - - - - - x x x x x - -
Mercury Race Outboard 300 X [PROMAX] - - - - - - - - - - - - - - - - x - - - -
Mercury Race Outboard 300 X [XL FM] - - - - - - - - - - - - - - x x x x x - -
Mercury Race Outboard 300 X [XL NO G/C] - - - - - - - - - - - - - - x x x x x - -
Mercury Race Outboard 300 [CL SM] - - - - - - - - - - - - x - - - - - - - -
Mercury Race Outboard 300 [CXL FM] - - - - - - - - - - - - x - - - - - - - -
Mercury Race Outboard 300 [L SM] - - - - - - - - - - - - x - - - - - - - -
Mercury Race Outboard 300 [L TM] - - - - - - - - - - - - x - - - - - - - -
Mercury Race Outboard 300 [PRO-MAX] - - - - - - - - - - - x x - - - - - - - -
Mercury Race Outboard 300 [PROMAX] - - - - - - - - - - - x x - - - - - - - -
Mercury Race Outboard 300 [SUPER MAG] - - - - - - - - - - - - x - - - - - - - -
Mercury Race Outboard 300 [XL FM] - - - - - - - - - - - - x - - - - - - - -
Rigging Parts Fuel/Oil Tanks, Lines, Filter Kits and Corrosion - - - - - - - - - - - - - - - - - - - - x
Sea Ray 100 [L] - x - - - - - - - - - - - - - - - - - - -
Sea Ray 100 [SL] - - x x - - - - - - - - - - - - - - - - -
Sea Ray 100 [SXL] - - x - - - - - - - - - - - - - - - - - -
Sea Ray 100 [XL] - x - - - - - - - - - - - - - - - - - - -
SportJet 0 [M2] - - - - - - - - - - - - - - - x - - - - -
SportJet 250DFI [JETPWHD] - - - - - - - - - - - - - - - x x x x x -
SportJet 250DFI [M2] - - - - - - - - - - - - - - - - x - x - -

Customers Also purchased

Supersession Chain

Name SKU Superceding SKU
Gasket VIEWING THIS PRODUCT 42999T CURRENT
Cap Gasket 42999 42999T
Due to manufacturer policy OEM Mercury products can only be shipped to addresses within the United States.

Flat $3.95 Shipping on ALL parts orders

We offer shipping flat $3.95 shipping on ALL parts orders. (Complete Engines, Lower Units and Sterndrives excluded). In addition orders over $89 have reduced cost express shipping available in checkout.

shipping map shipping map legend

You can get a rough idea of standard transit times from the map above.