Frequently Asked Questions

• Where are you located and what are your hours?
  -Our address is 22037 Howell Drive, New Lenox, IL 60451. We are open Monday through Friday 8AM to 4:30PM Central time. We are closed Saturdays, Sundays and the usuall holidays.
  
• My Onan engine is pretty bad, do you sell new engines or rebuilt ones?
  -Onan no longer manufactures any version of the twin cylinder opposed engine. There are some companies out there that will sell you a kit to put a diffrent brand engine out there, but we do not. We do not sell rebuilt engines, we rebuild yours. There are much to many variations in the Onan engine and options available that it is just too difficult to have the engine you need on hand. Send your engine in for an estimate to rebuild it.
• Where can I find a parts breakdown on the web?
  -You can't. Well perhaps you will find one, but it is copywritten information that we prefer to not get in trouble over. Please call and we will happily look up the parts for you or possibly fax or e-mail you a picture or two to help you identify your parts.
• Where can I find torque specifications, dimentions and clearances for rebuilding my engine?
  -Most of this common information is located on the "Technical Information" portion of this site.
• I am looking to rebuild my Onan myself, will you sell me parts?
  YES! We stock tons of Onan parts, including the major rebuild parts.
• I am on a quest for an obsolete part, can you help me?
  -Sure we stock many obsolete parts, not everything, but we snatch up everything we can find. A few items may be used or reconditioned, but it is better than nothing. We also have relationships with other dealers and warehouses that carry parts, so we can check our sources for you.
• Will you buy my old Onan engine from me?
  -Maybe. It really depends what model and its current condition. Don't expect to make a bunch of money though. We do not sell rebuilts or used engines so we would strip it for the valuable parts and scrap the rest. Keep in mind we are located in Illinois and will not pay much for shipping.
• I have a Linimar engine, do you carry parts for it?
  -Yes, and no. Linimar built the Onan engine for Onan for a number of years so everything is interchangeable with a coresponding Onan model. But, they also made engines for other companies as well as their own engine. Give us a call, we will help the best we can.
• I need a part really bad, will you UPS Next Day Air the part to me?
  -Yes. We ship UPS everyday and would happily ship however UPS ships to you.
• I am looking for a part, will you give me the part number?
  -Sorry, No. We take a lot of pride in our knowledge of the Onan engine line and feel that our knowledge is worth a sale. Its very hard to run a business and have a customer save $1.20 from some other guy. Our prices are very competitve and sometimes downright cheap. We encorage you to check around for prices, we just will not give you the part numbers.
• My block is junk, is it rebuildable?
  -Maybe. We do have blocks on hand for this reason. It all depends on the damage done.
• It looks like all you do is Onan engines, do you do anything else?
  -Yes. We have been in business for almost 30 years and involved with many engine manufacturers. Please see our parent webpage, Enginemasters Inc., to see our other product lines.
• Do you have parts for generators too?
  -Yes. We do a lot of generator work as well. We stock many voltage regulators and common control boards. Call and have your model number ready.
• I don't have a model number or cannot read my tag anymore, what can I do to get some parts?
  -Well it is very important to get your model number, or even a partial number from the tag. Without this information it is a little more difficult to determine the correct parts for your engine. Call with as much information as possible, we will do our best to help or at least tell you what information we need for the specific part you are looking for.
• Your website mostly focuses on the twin cylinder opposed Onan engine, do you rebuild or get parts for Onans other engines?
  -Yes. Parts are available for the single cylinder and the other multicylinder engines. The twin is the most common and what we do the most of.
• I have a military Onan engine or generator, can you get me parts?
  -Not sure. The military used some consumer model engines on their equipment as well as engines built exclusively for the military. Military generators are usually where there is a problem. We do not have parts books or service for any military application. If you have part numbers we will do our best, but usually they lead to a dead end.
• Can you help me with an Onan Marine generator?
  -Yes. We do quite a few generator repairs in house. We do not stock many parts for the marine units but many parts are still available.
• I bought new camshaft bearings and they look thinner, are they the right ones?
  -Yes. Onan changed the service part for the camshaft bearings quite a while ago. End users were constantly damaging the old wide style bearings upon installation causing angry customers. These are the correct camshaft bearings provided by Onan and we have used them in our shop with no problems.
• I am cheap, do you sell aftermarket Onan parts?
  -NO! We have not found any aftermarket parts that meet the demands of our customers. We insist on Green Label Original Cummins Onan Parts. There is often a good reason why aftermarket parts cost less, its the quality.

If you have any other questions you need answered, parts you need, or help with your rebuild please call us at 815-485-4545.