Sierra 18-3570 Mercury Water Pump Kit

Sierra 18-3570 Water Pump Kit for Mercury Outboards

Sierra engine parts are engineered to meet today's high horsepower engine demands and stand up to the harsh marine environment. All Sierra products meet or exceed the original part it replaces. This Sierra Water Pump Kit with Housing is for use on Mercury Outboards.

Kit Includes:

• (1) 18-2599 Face Seal and Tool
• (1) 18-3056 Impeller
• (1) 18-3122 Impeller Plate
• (1) 18-7420 O-Ring
• (1) 18-2944 Seal Ring Gasket
• (1) 18-2945 Drain Screw Gasket
• (1) 18-2564 Impeller Gasket
• (1) 18-2566 Impeller Gasket
• (1) 18-2566 Impeller Gasket

Replaces:

• Mercury  
• 817275A1
• 817275A2
• EMP
• 46-46501
• Mallory
•  9-48314
• GLM  
• 12415
• Redline
•  RL3570

For Use On Engine Models:

• 40 HP (4 Stroke, 4cyl) Bigfoot S/N OT228407-uP
• 45 HP (4 Stroke) Bigfoot Bodensee S/N OG231123-Up
• 50 HP (4 Stroke 935cc) Bigfoot S/N OG231123-OT178499
• 50 HP (4 Stroke 996cc) Bigfoot S/N OT178500-Up
• 60 HP (3 Cyl) Bigfoot S/N OD000750-Up
• 60 HP (4 Stroke) S/N OT178500-Up
• 65 HP (Jet) S/N OC283222-Up
• 70 HP (3 Cyl) S/N OA996142-Up
• 75 HP (3 Cyl) S/N OC222000-Up
• 75 HP (4 Stroke) S/N OG960500-Up
• 80 HP (3Cyl) S/N OA996142-Up
• 80 HP (Jet) S/N OD283222-Up
• 90 HP (3Cyl) S/N OA996142-Up
• 90 HP (4 Stroke) S/N OG960500-Up
• 100 HP (4 Cyl) S/N OB209468-Up
• 115 HP (4 Cyl) S/N OC100000-Up
• 125 HP (4 Cyl) S/N OD283222-Up
• V-200 DFI (3.0L) S/N OG386496-Up
• V-225 DFI (3.0L Carb & EFI) S/N OD280813-Up
• V-225 DFI S/N OD590000-Up
• V-250 EFI (3.0L) S/N OG129222-Up

Frequently Asked Questions

What is the Sierra 18-3570 Water Pump Kit for Mercury Outboards used for?

The Sierra 18-3570 Water Pump Kit with Housing is designed for use on Mercury Outboards. Sierra states that its engine parts are engineered for high horsepower engine demands and the marine environment, and that its products meet or exceed the original part they replace.

What Mercury outboard engines does the Sierra 18-3570 Water Pump Kit fit?

The Sierra 18-3570 fits the listed Mercury Outboard applications ranging from 40 HP through V-250 EFI, including select 3-cylinder, 4-cylinder, 4-stroke, Bigfoot, Jet, DFI, carbureted, and EFI engines. Fitment depends on the specific model and serial-number range, so verify your engine before purchasing.

What is included in the Sierra 18-3570 Water Pump Kit?

The kit includes a 18-2599 Face Seal and Tool, 18-3056 Impeller, 18-3122 Impeller Plate, 18-7420 O-Ring, 18-2944 Seal Ring Gasket, 18-2945 Drain Screw Gasket, and three listed 18-2564 or 18-2566 Impeller Gasket entries as specified in the supplied kit contents.

What Mercury outboard horsepower applications are listed for the Sierra 18-3570?

The listed applications include Mercury 40, 45, 50, 60, 65, 70, 75, 80, 90, 100, 115, and 125 HP engines, as well as V-200 DFI, V-225 DFI, V-225 DFI carbureted and EFI, V-225 DFI, and V-250 EFI applications. Each application has a specified serial-number range that should be verified before purchase.

What part numbers does the Sierra 18-3570 Water Pump Kit replace?

The Sierra 18-3570 replaces Mercury 817275A1 and 817275A2, EMP 46-46501, Mallory 9-48314, GLM 12415, and Redline RL3570. Verify the replacement number against your Mercury outboard's model and serial number to confirm that the kit is appropriate for your application.

Does the Sierra 18-3570 Water Pump Kit include the water pump housing?

Yes. The supplied description identifies the Sierra 18-3570 as a Water Pump Kit with Housing for Mercury Outboards. The listed kit contents also include the impeller, impeller plate, face seal and tool, O-ring, and several gaskets.

California Residents: WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov