Beckett Oil Burner

And a large selection of nozzles.

RE Michel used to provide me with an annual report of my part usage. There ware usually 15 to 18 burner motors, about the same amount of fuel pumps. Electronic Ignitors were a little higher, like maybe 25 or more. The oil burner couplings were a big item, but I purchased them in a kit of 20 to a box with an assortment of different end caps. Near the end of my career I started to purchase less of the bulk universal kits and more of the ones that were pre cut to the Beckett burner size. Most of the couplings were Becketts with the occasional Carlin, or Wayne. The high pressure line from the pump the the nozzle assembly seem to go bad when Bubba would over tighten the on that 3/16" flare nut.. "Be gentle" I would say and you only snug it up with a small 7/16" wrench, not your 12" Crescent wrench.

I had all of those parts on all 5 of my service trucks Sometimes two if each if the tech did a lot of oil burner work. I also used the Carlin 70200 primary control. each truck has 2 of those. There were a number of all those items in the shop to restock the trucks as they were used. To put this in perspective I had over 500 regular customers and at least 300 were oil burner users. There were over 2600 non-regulars (one and done) on the books when I sold the business. So I did a fair share of oil burners. Depending on the size of your customer base, you may just need one of each as indicated by @HydronicMike above.

Hope this helps

PS: get a couple sets of Ignition electrodes sets, a 5 pac of Cad Cell eyes and at least one C554A complete Cad Cell kits with the wires and mounting brackets.

I run into a lot more problems related to lack of maintenance and neglect than I do with actual part failures. And at least 90% of the time time I find a failed part it could have been diagnosed and replaced if proper maintenance and troubleshooting was performed.

Things like motors, pumps, couplings, igniters, cad cells usually don't go from working perfectly to not working at all without giving some signs of failing first. A good tech knows how to evaluate the condition of all of the parts of a burner. We don't swap parts out based on "this part is the most likely to fail".