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O-Ring, Water Tube Extension (.796 x .139) 25-21836

Satisfaction rating 5 out of 5 (11 Ratings)
$0.95
Save $0.45 (32%)
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Product Description

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

Product Questions

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11 Product Reviews

Good transaction
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Excellent.
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Great
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Very good!!
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Mercury 225 OptiPro XS

Repair Difficulty
Easy
Repair Time
Less than 30 mins
Crowley Marine is the right place to get the right part for your motor. Always the right part, good price and on-time delivery.
by

Problem fixed: Engine died after extended idling

I knew the vacuum fuel pump was weak, so I purchased a new one. After gaining access under the cowling, I drained the fuel reservoir, cut the three zip ties on the fuel lines and removed two of them. The third one wouldn't come off with the pump installed because of the oil tank. I removed the two mounting screws for the fuel pump (first removing the pivot screw for the throttle linkage (the linkage is in the way of the upper mounting screw ))(CAUTION: DON'T LOOSE THE WASHER THAT'S BETWEEN THE MOTOR AND THE PIVOT SCREW PIVOT). I rotated the fuel pump 45 degrees counter clockwise and gently pried the brass fuel line out of the fuel reservoir housing. CAUTION: I noticed there were two O-rings on the brass fuel line, these O-rings were not on the new one, nor were they provided. Contacting a dealer I found out they are listed either. So I very carefully removed them, inspected them and put them on the new fuel pump. Then it was just a matter of reversing what I had done. That was fast and easy (after finding the washer). Manually primed the fuel reservoir, test started the motor, then went fishing!

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merc 225 opti

great prices and quick shipping...getting ready to order a mercury water pump kit shortly..
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Mercury Opti-Max 225

Repair Difficulty
Easy
Repair Time
1 to 2 hours
Absolutely outstanding. I highly recommend Crowley Marine for all your marine needs. They have a large stock, accurate inventory on-line and super fast shipping.
by

Problem fixed: Water pump pressure down.

Had to replace my water pump. Normal maintenance.

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 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1993.5 1994 ALL YEARS
Chrysler Outboard 6 - x x x x x x x - - - - - - - - - - - -
Chrysler Outboard 7.5 - - - - x x x x x x - - - - - - - - - -
Chrysler Outboard 8 - x x x x - - - - - - - - - - - - - - -
Chrysler Outboard 9.9 - - - - x x x x x x - - - - - - - - - -
Chrysler Outboard 10 - x x x - - - - - - - - - - - - - - - -
Chrysler Outboard 12 - - - - x - - - - - - - - - - - - - - -
Chrysler Outboard 15 - x x x x x x x x x - - - - - - - - - -
Chrysler Outboard 20 - - - x x x x x - - - - - - - - - - - -
Chrysler Outboard 25 x x x x - - x x x x - - - - - - - - - -
Chrysler Outboard 30 - - - - x - - - - - - - - - - - - - - -
Chrysler Outboard 35 x x x x x x x x - - - - - - - - - - - -
Chrysler Outboard 45 - x x x - - - - - - - - - - - - - - - -
Chrysler Outboard 50 - - - - - - - - x - - - - - - - - - - -
Force Outboard 6 - x x x x x - x - - - - - - - - - - - -
Force Outboard 7.5 - - - - x x x x x x x - - - - - - - - -
Force Outboard 8 - x x x x - - - - - - - - - - - - - - -
Force Outboard 9.9 - - - - x x x x x x - - - - - - - - - -
Force Outboard 10 - x x x - - - - - - - - - - - - - - - -
Force Outboard 12 - - - - x - - - - - - - - - - - - - - -
Force Outboard 15 - x x x x x x x x x - - - - x - - - - -
Force Outboard 20 - - - - x x x x - - - - - - - - - - - -
Force Outboard 25 x x x x - - - - x x - - - - - - - - - -
Force Outboard 35 - - x x x x x x - - - - - - x x x - - -
Force Outboard 45 - - x x - - - - - - - - - - - - - - - -
Force Outboard 50 - - - - - - - - x - - - - - - - - - - -
Mark Outboard MARK 20, 15, KH7, WG7 - - - - - - - - - - - - - - - - - - - x
Mark Outboard MARK 20H - - - - - - - - - - - - - - - - - - - x
Mark Outboard MARK 50, 50E - - - - - - - - - - - - - - - - - - - x
Sears Outboard 5 - - - - - - - - - - - - - x x x - - - -
Sears Outboard 7.5 - - - - - - - - - - - - - x x - - - - -
Sears Outboard 9.9 - - - - - - - - - - - - - x x x - x x -
Sears Outboard 15 - - - - - - - - - - - x x x x x - - - -

Customers Also purchased

Supersession Chain

Name SKU Superceding SKU
O-Ring, Water Tube Extension (.796 x .139) VIEWING THIS PRODUCT 21836 CURRENT
"O" RING, CONNECTOR ASSEMBLY 20679 21836
Steering Handle Damper Seal F53795-1 21836
SEAL F53795 F53795-1

Aftermarket Product Interchange

Name SKU Price Brand
O-Ring 18-7420 $1.58 Sierra Marine
O-Ring 18-7153 $1.75 Sierra Marine
Due to manufacturer policy OEM Mercury products can only be shipped to addresses within the United States.