A wet tile saw is only as good as its water supply. When the blade starts running dry, cuts start chipping, the diamond rim glazes over and blade life falls off a cliff. This genuine MK Diamond 155987-MK submersible pump restores steady, cooling water flow to the blade on MK-170, MK-270, MK-370, MK-370EXP and MK-470 tile saws - a low-cost part that protects a much more expensive blade.
Built for
Tile setters, stone fabricators, remodelers and rental fleets running MK Diamond 7-inch wet saws who need the saw cutting clean today, not next week.
Use Cases
- Replacing a pump that has failed or lost flow after seasons of slurry exposure
- Restoring clean cuts on porcelain and stone where blade cooling is critical
- Keeping a spare in the truck so a dead pump does not stop a tile job
- Rental and jobsite fleets standardizing on the OEM pump across MK saws
- Running the pump in a separate clean-water bucket to extend pump and blade life
Specifications
- Voltage: 120V, 115 volt submersible
- Type: submersible water pump for wet tile and masonry saws
- Outlet: 1/2-inch ID tubing with 5/16-inch adapter
- Cord: 6 ft, 3-prong
- Approximate size: 2.5-inch H x 2-inch L x 2.38-inch W
- Fits: MK-170, MK-270, MK-370, MK-370EXP and MK-470 tile saws
- Part reference: 155987-MK
Frequently asked questions
Which MK Diamond saws does this pump fit?
It is the factory pump for the MK-170, MK-270, MK-370, MK-370EXP and MK-470 tile saws.
Why did my old pump stop pumping?
The most common causes are slurry buildup in the intake screen and running the pump in a tray that is too shallow. Fine cutting slurry is abrasive and gradually wears the impeller, so pumps are treated as a wear part on saws in daily use.
How do I make a tile saw pump last longer?
Keep the pump fully submerged, rinse the intake screen at the end of each day, and where practical set the pump in a separate bucket of cleaner water rather than the slurry-heavy tray. Disconnect the pump any time you cut dry.
The pump runs but water barely reaches the blade. What should I check?
Check the tubing and the spray outlets for a slurry plug before assuming the pump is bad, and confirm the water level fully covers the pump. A partially submerged pump draws air and will not deliver full flow.
Is this the genuine MK Diamond part?
Yes. This is the MK Diamond 155987-MK pump, the same part specified in the saw parts lists.
Discount Cleaning Products is an authorized dealer for the equipment brands we carry, with US-based support that can confirm the correct pump for your saw model before you order.
