Kinsler’s Tough Pump is made of high alloy steel, is case hardened, precision ground and proprietary coated. The one-piece gear shaft does not allow any radial movement of the gear on the shaft, thus maintaining correct clearance between the gear teeth tips and the housing. A two-piece gear and shaft introduces more tolerance, which can allow the tips to scrape the gear cavity walls.

The pump’s housing evolved through housing deflection vs. pressure tests. This final design is one of the strongest in the industry, combined with 12 10-32 studs to secure the extra rigid cover. The housing is MIL-spec hard-coated to within .0001″ tolerance for consistent flow over a long life.

The inlet port comes straight into the gears rathewr than making a 90 degree turn like most pumps. This combined with special internal design features to feed the fuel to the gears gives top-end performance up to 7000 pump RPM without cavitation.

Kinsler’s gear side plates are high alloy steel, heat treated very hard, ground to a 6 micro-inch finish with end-to-end flatness of .0001″. These are coated with a harder-than-carbide composite, then lapped to a 2 micro-inch mirror finish.

Each pump is flow tested, run-in for two hours and reflow tested before shipping.

For more info: www.kinsler.com.