Honda Model Number and Serial Number Locations
Model numbers and serial numbers can mean the difference between getting the right part and the wring one. For most Honda equipment, the base model number is on the starter cover, the engine cowling or another prominent location on the frame. The serial numbers are a little more difficult to find. Honda equipment generally has a serial number for the frame, and one for the engine.
In addition to the regular model designation, there are variations in model number such as K0, K1, K2, etc. These represent design changes made in the product line from time to time. The changes may be cosmetic or mechanical, but are not enough to warrant a completely new model designation. Many parts change from one version to the other, so it is usually necessary to determine which version you have. Serial numbers are the most reliable way of doing this. This page is not complete for all models and probably never will be, but it covers some of the most common questions.
Honda Engine Serial Number Location
When working on Honda engines, only one serial number is required, but other information may be necessary, such as carburetor or type number. For serial number location diagrams, please refer to our Honda engine parts section. We have diagrams for nearly all models of Honda general purpose engines.
Honda Trimmer Serial Number Location
Honda Lawnmower Serial Number Location
On Honda lawnmowers, the model numbers and serial numbers are usually located on the back of the deck between the handles. For some models, there are two number locations near where each side of the handle meets the deck, one giving the model designation, and one the serial number.
HRM195 Lawnmowers
HR215 Lawnmowers | HR215 Frame Serial 6000001 to 6199999 | HR215K1 Frame Serial 6200001 and up
HRM215 Engine Serial 6000001 and up HRM215K1 Engine Serial 6000001 and up HRM215K2 Engine Serial 6000001 and up HRM215K3 Engine Serial 7000001 and up HRM215K3 Engine Serial 7000001 and up | HRB215 Engine Serial 6000001 and up HRB215K1 Engine Serial 6000001 and up HRB215K2 Engine Serial 6000001 and up HRB215K3 Engine Serial 7000001 and up HRB215K3 Engine Serial 7000001 and up |
HR216 Lawnmowers
HRS21 / HRM21 Lawnmowers
Honda Walk-Behind Lawn Mowers model contains a "K" that wasn't stamped on the model and serial number tag.
For example please see below.
Honda Riders & Tractors
On Honda riders and tractors, the serial numbers are usually located on the side of the frame. Decks, catchers, and blowers also have their own model and serial numbers.
| HT3810 Engine Serial 1200001 and up, Frame Serial 5000034 to 5099999 HT3810K1 Engine Serial 1200001 and up, Frame Serial 5100001 to 5199999 HT3810K2 Engine Serial 1200001 and up, Frame Serial 5200001 and up | HT3813 Engine Serial 1100001 and up, Frame Serial 5000001 to 5099999 HT3813K1 Engine Serial 1100001 and up, Frame Serial 5100001 and up |
| H4514HSA Engine Serial 1100001 and up, Frame Serial 1000001 to 3999999 H4514HSAC Engine Serial 1100001 and up, Frame serial 4000001 and up | H4518HSA Engine Serial 1000001 and up, Frame Serial 1000001 to 3999999 H4518HSAC Engine Serial 1000001 and up, Frame serial 4000001 and up |
Honda Tillers
Honda tillers generally have the frame serial number either on the handle, or near where it connects to the main chassis.
F200 / F210 Tillers
| F210K0 Engine Serial 2000001 and up Frame Serial 2000001 to 2099999 | F210K1 Engine Serial 2000001 and up Frame Serial 2100001 to 2199999 | F210K2 Engine Serial 2000001 and up Frame Serial 2200001 and up |
F401 & F501 Tillers
FR500 / FR600 / FR700 / FR800 Tillers
| FR500 Engine Serial FR 1388543 and up Frame Serial 1000001 to 1099999 | FR500K1 Engine Serial FDIT 6000001 and up Frame Serial 1100001 and up | FR700 Engine Serial 1000001 and up Frame Serial 1000001 to 1099999 | FR700K1 Engine Serial 1000001 and up Frame Serial 1100001 and up |
Honda Generators and Pumps
Most new models have both engine and frame serial numbers, but some of the older models just had one serial number. Every model is a little different. You may have to do some hunting.
E3500 / ES3500 / E4500 / ES4500 Generators
EM3000 / EM5000 Generators
ES6500 Generator
EX5500 Generator
Honda Outboards
Like most other Honda equipment, Honda outboards have one serial number for the frame and one for the engine.
Honda Outboard