Dultmeier Sales will be closed Thursday, November 26th and Friday, November 27th in observance of Thanksgiving

Dultmeier Sales will be closed Thursday, December 24th at 12pm and all day Friday, December 25th.
Normal operations will resume Monday, December 28th. We wish you and your family a very Merry Christmas!

Dultmeier Sales will be closed Friday, January 1st in observance of
New Year's Day

Dultmeier Sales will be closed Thursday, July 4th and Friday, July 5th in observance of Independence Day.
Normal operations will resume Monday, July 8th. We wish you a happy 4th of July!!

We are experiencing some technical difficulties on dultmeier.com and apologize for any inconvenience.
If you are running into issues, please phone your order in to 1-888-677-5054

Customer Pickup Orders: to help reduce exposure for our customers and our employees, if you are placing an order for in-store pickup please call in your order ahead of time or place your order online and pre-pay with a credit card. Be sure to let us know when you plan to arrive. We will have your merchandise ready for you and will greet you outside our facility. Thank you for your help!

Pump Failure Caused by Water in Crankcase Oil | Video

A brief video showing what exactly happens when crankcase oil is contaminated by water. This can be caused by a variety of reasons, such as O-ring failure or damage followed by damage to the main seal on the shaft.


Crankcase oil contamination, and oil contamination in general, can seriously damage a pump. With the pump displayed in the video, contaminated oil has damaged a variety of parts, and the pump requires a number of new parts. Much like the pump in the video has developed calcium deposits on the manifold, these deposits can form anywhere in the pump, blocking important functions.

As stated in the video, it is recommended you check your oil before each use of the pump. This process won't prevent the leakage, but rather prevent contaminated oil from damaging the pump any more than necessary. The damage caused by extended contamination may not be immediately apparent, but damage caused will show up gradually, and may be expensive.