Sierra's 18-3517 Water Pump Kit does not include the base. It is designed for use with Mercury/Mariner 65 HP (4 Cylinder) through V6 outboards with short-vane impellers. It is also designed for use with Mercruiser I, R, MR, and Alpha stern drives (s/n 2495186-0D469858). The kit contains: (1) Sierra 18-2801 Water Pump Gasket, (1) Sierra 18-2826 Water Pump Base Gasket, (1) Sierra 18-2914 Water Pump Gasket, (1) Sierra 18-2915 Water Pump Gasket, (1) Sierra 18-2919 Water Pump Gasket, (1) Sierra 18-2944 Seal Ring, (2) Sierra 18-2945 Drain Screw Gaskets, (1) Sierra 18-3017 Impeller, (1) Sierra 18-3109 Water Tube Guide, (1) Sierra 18-3116 Water Pump Housing, (1) Sierra 18-3117 Impeller Plate, (1) Sierra 18-7158 O-Ring, (1) Sierra 18-7162 O-Ring, (1) Sierra 18-7173 O-Ring, (1) Sierra 18-7176 O-Ring, (1) Sierra 18-7426 O-Ring, and (1) O-Ring. It is interchangeable with GLM 12280; Mallory 9-48311; Mercruiser Stern Drive 46-32437A3, 46-37433A1, and 46-96148A8; and Mercury Marine 46-32437A1, 46-37433A1, 46-42579A4, 46-44292A4, and more. Each Sierra product meets or exceeds the original equipment part it replaces. Fit specific, check part numbers to ensure proper fit.
S**Y
Not pleased with poor quality - only lasted 3 months
First one I ordered and installed lasted about 1-1/2 years. Just installed this one three months ago. Already having issues. Pulled lower unit, and found the impeller is warped. Including pictures. Going back to genuine Mercury Marine parts. Too much work to only last three months.
T**R
Worked perfectly on 1987 Mercury 115 Tower of Power
I replaced a worn out impeller that had separated from the brass hub. All gaskets, housing, and metal bottom plate are included in this kit. Perfect!
N**6
Didn't come with impeller key.
I ordered this a for my mercury 150 saltwater series motor. I haven't installed the kit yet but going through the parts delivered, I discovered that the kit does not come with the impeller key like all other full kits and repair kits usually come with. Not sure if that will make a difference or not, but I will have to reuse the key that's already installed. I'll post an update after the install.
G**E
Great Deal on mercury water pump assembly
I did some cross referencing and tried this on my 1996 Mercury 175 hp outboard. I could not believe the low price.The parts were correct. Seemed at least as good as the mercury parts, and shipping was super fast, like one day!I run my boat a lot. The water is very "skinny" here with abrasives churned in the water. I installed a water pressure gauge and it's interesting to see the pressure drop after a few months of heavy use. I can swap the pump & housing in less than an hour for $25 bucks. Way cheaper than a new power head.This is the 2nd one I purchased from Jims Marine through Amazon. Very highly recommended!As always Amazon is the way to go. Great prices, reviews, and super saver shipping!
M**N
Awesome
Work great on my 86 merc 150s
A**R
Great price , fast delivery
Great price, perfect fit
D**N
No issues
Been using these for years. I have a "470" outdrive which is pre-alpha, use it in salt water where sand ultimately gets sucked up and past the impeller, and use muffs which sometimes doesn't deliver good pressure and it stull lasts 2-3 years for me without replacement. After that time, the impeller start to get little cracks on the fins which will lead to failure.
S**Y
Fit perfect on my 1987 Mercury 115.
Fit perfect on my 1987 Mercury 115. Will buy again when needed.
D**.
Works great
Theres enough parts to do a variety or motors so you're paying for extras you'll not use, but less expensive than others. My parts bag was missing the keyway so I had to use the old one. I'm sure theres no issue. Had it all apart before I noticed it was missing. Check first I guess. Other than that it worked great.
R**.
Good value
Bought this a spare parts for the garage, everything in the kit is all you need for a re-seal.
F**X
Good
Good
S**N
as listed
took a while to get so used other kit that came earlier. but will keep for next year.
Trustpilot
1 day ago
2 months ago