⚡ Power your ride with precision and confidence — never settle for less!
The KEMSO 340LPH High Performance Fuel Pump is a direct upgrade over the Walbro 255LPH GSS342, engineered to support up to 600 BHP in naturally aspirated, turbocharged, and supercharged engines. Designed for gasoline and E85 fuels, it features a high-pressure bypass valve at 125.8 psi and comes with a serialized body backed by a lifetime warranty. With USA-based technical support and vehicle-specific fitment, this electric tank-mounted pump combines durability, performance, and peace of mind for serious automotive enthusiasts.
| Brand | KEMSO |
| Fit Type | Vehicle Specific Fit |
| Vehicle Service Type | Car |
| Item dimensions L x W x H | 4.72 x 3.54 x 6.69 inches |
| Material | Alloy Steel |
| Item Weight | 450 Grams |
| Style | Gerotor |
| Specification Met | CE |
| Auto Part Position | Inside |
| Outlet Connection Size | 1E+1 Millimeters |
| Inlet Connection Size | 6.35 Millimeters |
| Body Material | Aluminum, Plastic |
| Inlet Connection Type | Hose Barb |
| Gas Type | Gasoline |
| Mounting Type | Tank Mount |
| Operation Mode | Electric |
| Product Grade | Replacement Part |
| Automotive Fit Type | Vehicle Specific Fit |
| OEM Part Number | F10910 |
| Manufacturer | KEMSO |
| UPC | 795098690096 793101221367 |
| Model | Fuel Pumps |
| Item Weight | 15.9 ounces |
| Product Dimensions | 4.72 x 3.54 x 6.69 inches |
| Item model number | B-10910 |
| Exterior | Machined |
| Manufacturer Part Number | B-10910 |
C**W
It Works. Plain and simple.
So the pros and cons? Well, the pump is built extremely well. The logo and painted case gives it the appearance of a high dollar unit. I wish I could actually see the internals though because I'm willing to bet the impeller is magnificent as well. Overall it performs better than OEM Walboro type units.Cons: fitment, although perfect in the normal horizonal axis,within the pump assembly, is bad vertically meaning the unit fits perfectly into the grommet tube, power connector was spot on, it's just the rubber pump cap does not support being installed without major modification of the fuel pump housing on an 04 INFINITI G35 coupe. After much trial and error, modification and Dremeling, I finally got it to fit within the unit. The pressure it produces is amazing! You can hear the whirl of the pump as you turn your ignition before firing up for cold start.
C**P
High pitched noise
Pump works well, builds and holds fuel pressure perfectly, only complaint is a high pitched noise thats audible the whole time the car is running
R**B
Good kit
Great kit put it on my 2015 crf250r with an injector and bike hasn't run smoother since Ive had it plus gotnan extra filter
G**L
Almost left stranded in the desert
Worked for 700 miles. It almost left me stranded in the middle of my trip through the Arizona desert. 10/10 would not buy again. My life could have been in danger due to this pump failing. It randomly went out over night. Would not supply gas in the morning. All buyers be carful, OEM will give an ease of mind for your trips.
S**N
Very loud pump
I was able to make everything fit like it should, seems to make okay fuel pressure on my sv650, but it is very loud and I don't have a lot of confidence it will last. Also had to cut and splice the wires to add ring terminals, none were included and the provided crimp connectors don't shrink nor are they glue/solder type. I feel something as simple as a better connector could really improve the kit by a lot, but o rings fit as they should, rubber isolater fit fine, grommet for fuel pump was fine and the pickup sock although a little weird to fit up was okay.
J**E
Works for 2015 kx250f
Worked great
G**I
Recommend
Perfect replacement at a fraction of the price
J**D
420 lph fuel pump
2 months so far an going strong,could use another piece of fuel line to make saddeled tanks work proper.Needed a lightly rigging to make work in 04 audi a4 1.8t
Trustpilot
1 month ago
2 months ago
