The walbro 39/50 or 400 series pump represents the updated walbro released over a decade ago. This pump has seen various improvements over the years. In this listing you can find any variation of the pump you’re looking for. We are listing these at aggressive pricing, if you find pumps cheaper than this you are likely buying knockoffs.

In most applications, we recommend a -274 if we recommend a walbro at all. Checkout our 044 pump system which flows more, uses less amperage, and installs easier.  -285 and -295 pumps are often out of stock.

Walbro F90000274

Rated flow: 450lph

Rated power: 750hp

Current draw at max pressure: 19 Amp

Internal relief pressure: 112psi

This pump has been on the market for almost the longest and is what was traditionally referred to as the 485. Compatible with E85 and traditional fuels.

Walbro F90000285 “Hellcat 525lph”

Rated flow: 470lph

Current draw at max pressure: 22.3 Amp

Internal relief pressure: NONE

“Upgraded” version of the 274 pump above. 10% more peak flow but 15% increased amperage draw. Recommended only to be used when the additional flow is needed.

Walbro F90000295

Rated flow: 535lph

Current draw at max pressure: 19.7 Amp

Internal relief pressure: NONE

The newest offering from Walbro, with the more powerful electric motor. It does not feature the standard check valve. May cause hard starting and not to be used with parallel pump setups.