Stellar Industries 8618 Purolator 12S Electronic Fuel Pump – 4–7 PSI

If you’re unsure whether this part is compatible with your truck or equipment, please contact us to confirm fitment before purchasing.

The Stellar Industries 8618 Fuel Pump is a compact 12-volt electronic pump identified as Purolator model 12S. It supplies gasoline at 4–7 PSI with a free-flow capacity of approximately 35 gallons per hour.

This internally regulated, solid-state pump uses a simple two-wire connection and is designed for gravity-fed fuel systems. It provides dependable fuel delivery for compatible Stellar auxiliary power-unit and compressor applications.

What This Part Is Used For

The Stellar 8618 pump transfers gasoline from the fuel supply to the engine on compatible auxiliary power equipment. It can serve as the primary low-pressure pump or as a booster to prevent fuel starvation and vapor lock.

Common Reasons For Replacement

Engine cranks but does not start
Fuel does not reach the engine
Engine stalls or loses power under load
Pump operates intermittently
Fuel pressure is below specification
Pump no longer makes an operating sound
Fuel leaks from the pump or fittings
Electrical terminals or wiring are damaged
Internal contamination restricts fuel flow

Key Features

Stellar Industries part number 8618
Purolator-style 12S electronic fuel pump
12-volt negative-ground operation
Operating pressure of 4–7 PSI
Free-flow capacity of approximately 35 GPH
Internally regulated fuel pressure
Solid-state pump design
Two-wire electrical connection
Approximately one-amp current draw
Self-priming operation
Fits compatible 5/16-inch fuel hose
1/8-inch NPT ports
Designed for gasoline applications
Not recommended for diesel, ethanol, E85, or methanol