Stop improvising with undersized wire. The Remco 901-013-R is a purpose-built, professional-grade wiring harness designed specifically for 12-volt sprayer pumps drawing high current loads. It ships complete with everything you need to connect your pump directly to a battery -- no hunting for the right gauge wire, no guessing on switch ratings, no loose connections that fail in the field.
Agricultural and utility sprayer pumps -- especially high-flow diaphragm pumps in the 5.3 to 7.0 GPM range -- pull enough current at startup to overwhelm undersized wiring. The 901-013-R is built around 12 AWG heavily insulated bonded copper wire rated to carry the full amperage these pumps demand without voltage drop or heat buildup at the connections.
The kit is confirmed compatible with Remco's own 5500 Series and Fatboy Series sprayer pumps and works with most competing brands in the same flow class. If your pump runs on 12 volts and flows between 5.3 and 7.0 GPM, this harness is sized for it.
Red and black bonded pair, heavily insulated for outdoor and engine-bay environments. Handles maximum amperage without heat buildup or voltage drop.
Heavy-duty toggle switch rated to 50 amps -- well above the operating draw of pumps in this flow class. Provides clean on/off control without a separate relay.
Two 40-amp-rated battery clips connect directly to any 12V battery. No terminal crimping required -- attach and go.
Generous 98" (just over 8 feet) of total wire length gives you enough reach to mount the pump remotely from the battery without splicing in extra wire.
The 901-013-R ships as a complete, ready-to-connect kit. Every component needed for a direct battery-to-pump connection is in the box:
The 901-013-R includes the switch, battery clips, and heat shrink connectors. Unbox it, connect the clips to your battery terminals, connect the leads to your pump, and you're running. No wire nuts, no tape, no sourcing a separate switch.
This harness is designed for 12-volt diaphragm sprayer pumps in the 5.3 to 7.0 GPM flow range. Confirmed compatible models include:
Not intended for 24V pump systems or pumps with a rated flow above 7.0 GPM. Check your pump's rated current draw -- this harness is engineered for loads up to 50 amps continuous through the switch and 40 amps at the battery clip terminals.
High-flow diaphragm pumps spike current at startup. Undersized wire (14 AWG or 16 AWG) creates resistance, voltage drop, and heat -- all of which shorten pump life. The 12 AWG wire in this kit minimizes resistance over the full 98" run, so your pump sees the full battery voltage it needs to prime and run efficiently.
Installation is straightforward for anyone comfortable with basic 12V wiring:
Periodically inspect battery clip connections for corrosion, especially in agricultural and marine environments. Clean clip contacts with a wire brush or contact cleaner, and confirm heat-shrink connections remain fully sealed. Replace the harness if insulation shows cracking or discoloration from heat exposure.
While this harness handles up to 50 amps at the switch, verify your specific pump's rated startup and running current before connecting. Pumps modified from stock ratings or running at elevated pressures may draw more than the harness is rated for.