The SPM1000-115 is a magnetically driven, fully submersible marine HVAC coolant pump that circulates seawater. The pump is epoxy encapsulated, which allows the SPM-1000 to run fully submerged in many liquids or in open air for complete moisture protection. The hardened Carbon bushing allows for extended run dry time without any damage to the pump head.

ISO 8846 Marine Ignition Protected

  • 1000 GPH
  • 1″ FPT Inlet, 1/2″ MPT Outlet
  • 27 Feet of Head @ 11.7 PSI
  • 115 Volt
  • 1/8 HP
SKU: SPM1000-115 Categories: , Tags: , ,


The Koolair SPM1000-115 Submersible Magnetic Drive Marine HVAC Seawater Circulation Coolant Pump, Replaces March LC-5C-MD Pump 115v, 1 “FPT Inlet, 1/2” MPT Outlet, Nylon Front / Rear Housings, Ceramic Shaft and Washers, Ceramic Magnet, 17 GPM @ 27 Feet to Head, Run Dry Protection. 1/8 HP, 115 Volt 50/60 Hz, Epoxy Coated Submersible Motor. The SPM1000-115 is also ISO 8846 Marine Ignition Protected.

Economical March LC-5C-MD Replacement Pump with a 115 volt motor.

Features & Benefits Of Our SPM1000 115 Marine Coolant Pumps

  • To withstand thermal overloads without failure, the pump has run dry protection. Finally when cooled, the pump will resume operating normally.
  • Polypropylene, Buna N and Ceramic Magnet make up the wet end materials exposed to liquids. When submerged, Epoxy, Stainless Steel, Polysulfone, and also the Cord will come in contact with the solution.
  • The inlet connection is a ¾” female pipe thread and the outlet is ½” male pipe thread.
  • Includes fully integrated, heavy duty marine base and also the original base in contrast to other pumps.
  • The motor is a 1 Phase 230V, 1/8 Horsepower motor, running on either 50 or 60 HZ. The pump is not self-priming and requires flooded suction.
  • Maximum internal pressure is 25 PSI and the maximum liquid temperature is 130 Fahrenheit or 54 Celsius.
  • The magnetically driven SPM1000-115 volt pump with no shaft seal is our core model. In open air or furthermore, fully submerged, the PM500 pumps as a result offer complete moisture protection due to being epoxy coated. When re-assembling the pump for service also make sure all “O” Rings are properly seated.
  • ISO 8846 Marine Ignition Protection.
  • NMMA, USCG and SAE J1171:2016


Most commonly used on your boat for marine air conditioning while circulating seawater.

Koolair Pumps | Run Dry Protection To Keep You Cool.

Limited Warranty Statement

Koolair Pumps are guaranteed only against defects in workmanship or materials for a period of one year from date of manufacture while pumping water.

Packed weight is 18 pounds. Please see our data sheet similarly for flow and curves. Look under additional information tab to find mechanical specifications.

UPC: 852575006181

SPM1000 Series

If you are looking for less flow and head, check out our other models.

Additional information

Attribute Information
Weight 18 lbs
Dimensions 12 × 8 × 10.5 in
Maximum Flow

1000 GPH – 17.2 GPM (54.8 LPM)

Maximum Head

27 Feet of Head @ 11.7 PSI

Maximum Internal Pressure

25 PSI

Maximum Liquid Temperature

130° F (54° C)


1″ FPT


1/2″ MPT


50/60 Hz


115 Volt


Single Phase (1 PH)






1/8 HP