Genuine Cummins Onan low pressure electric fuel pump for KY series RV generators, Spec A–H. Supersedes 149-2311 and 149-2311-00. Not compatible with KY Spec J and later or KYD — a different pump is required for those models. 1-year limited warranty.
The Cummins Onan 149-2311-01 is a genuine OEM low pressure electric fuel pump for KY series gasoline RV generators at Spec A through H. It is a direct-fit replacement for the original pump and supersedes earlier revisions 149-2311 and 149-2311-00 — all three part numbers refer to the same pump design for this spec range.
The fuel pump delivers low-pressure gasoline from the RV's fuel supply to the generator's carburetor. It is an electric (solenoid-actuated) pump, not a mechanical pump. Replacing a failing fuel pump with a genuine OEM part ensures proper fuel pressure and flow to the carburetor across the full operating range of the generator.
This pump fits KY Spec A–H only. Cummins Onan redesigned the fuel pump starting at Spec J, and that later design is not interchangeable with this one. See the warning section below before ordering.
Electric solenoid-actuated design — the correct type for KY Spec A–H. Delivers low-pressure fuel to the carburetor for reliable engine starting and running
Cummins Onan factory part — built to OEM specifications for proper fuel pressure, flow rate, and long-term durability in RV generator applications
Current part number 149-2311-01 replaces the earlier 149-2311 and 149-2311-00 — all refer to the same pump design for KY Spec A–H
Designed for KY series gasoline carburetor generators — LP (propane) KY variants use a different fuel delivery system and do not use this pump
The 149-2311-01 fits KY Spec A–H only. Cummins Onan redesigned the fuel pump beginning at Spec J, and the two designs are not interchangeable. If your KY generator is Spec J or later, or if you have a KYD, you need a different pump. The correct pump for KY Spec J and later is Onan part number A047N926 (supersedes 149-2311-02 and A029F889). To confirm your spec letter, locate the generator's identification nameplate — the spec letter appears after the model designation. Ordering the wrong pump for your spec range will result in a non-fitting part.
KY Spec A–H (this pump): • 149-2311-01 ← current • 149-2311-00 ← superseded by -01 • 149-2311 ← superseded by -01 KY Spec J and later / KYD (different pump): • A047N926 ← current • A029F889 ← superseded by A047N926 • 149-2311-02 ← superseded by A047N926 These two pump families are not interchangeable. Always match by spec letter before ordering.
Backed by a 1-year limited manufacturer's warranty against defects in materials and workmanship. Retain your purchase receipt and note the installation date for any warranty service requests.