Diesel Repair
Experts in Edgar, WI

Evan Lang, Owner

Before opening E.L.M. Repair & Refrigeration Inc., Evan came to this business with 14 years of experience. Evan graduated from Wyoming Technical Institute in 1990 with a vocational diploma in diesel and heavy equipment technology. In 1996, Evan and his wife began doing auto repairs from their own garage. Throughout the years, Evan was able to purchase his own 3-bay facility, which he added another 3-bays in the years to come. The year 2015 brought great change for Evan and the crew at E.L.M. Repair. The construction of a new facility at the junction of Hwy 29 and County Road H near Edgar, WI was the beginning of a new venture. A 33,183 square foot facility was constructed to conduct their parts and service operations. 21-bays for trucks and trailers along with a Dynamometer bay and wash bay was constructed. Ample parking and expansion capabilities also accompanied the build. A secure lock up area for vehicles on the back side was also put in place. Evan also decided to add tire, alignment, and dyno services in 2015 with the new facility. He is proud that E.L.M. has become known for their knowledgeable and helpful staff.

An interesting fact that you may not know about Evan is that he loves to snowmobile and go four wheeling, smoke any kind of meat, also in his heart he would still love to be in farming.

Certifications

ASE Master Medium/Heavy Duty Truck Technician certified in:

• Gas Engines
• Diesel Engines
• Drive Trains
• Brakes
• Suspension & Steering
• Electrical/Electronic Systems
• Heating, Ventilation, and A/C
• Preventive Maintenance Inspection

ASE Advanced Level Specialist certified in:

• Electronic Diesel Engine Diagnosis

Other Certifications:

• Cummins Warranty Decision Maker
• Cummins N14, M11, ISX, Celect, 88NT, ISB, SIG 600, L10 Engines
• Cummins L10 Overhaul
• Cummins 855 Overhaul
• Cummins B Series and C Series Engines
• Cummins Celect/STC Overhead Adjustment
• Cummins ReCon Electrics Troubleshooting
• Cummins Onan RV Generators
• Cummins QSK19 Base Engine & Quantum Fuel System
• Cummins ISC & QSC
• Cummins Insite
• Air Conditioning / HVAC
• Advanced Air Brake Systems
• Wabco & Bendix ABS
• Eaton Fuller Clutches
• GM Powertrain
• BAB Steering Hydraulics Trouble Shooting & Diagnosis
• Catco Manual Transmission
• Allison Automatic Transmission
• Kenworth HVAC Preventive Maintenance
• Haldex ABS

Mary Lang, Owner

Before opening E.L.M. Repair & Refrigeration, Inc. with Evan, Mary came to this business with 20 years of experience. Mary graduated from North Central Technical College in 1984 where she received her Associates Degree in the Administrative Assistant Program. Mary worked in the medical field for several years, starting as a filing clerk, receptionist, insurance billing, and accounts receivable. She worked for a finance company and learned more about what it is like to run a business.

In 1996, Mary began helping Evan with the paperwork for the business we started out of our garage. Since then our business has grown tremendously. Our shop now employees 26 people including themselves. And are looking to build a new facility and add more employees in the near future. In 2015 they built a new facility and added more employees to the team.

Kurt Schreiner, Shop Foreman, Trainer, ASE Certified Medium / Heavy Truck Technician

Kurt has been with our company for 15 years. He came to us with 17 years of experience in the repair of all diesel equipment. He graduated from Mid-State Technical College with a vocational diploma in diesel and heavy equipment technology. Kurt works on Cummins, Caterpillars, Detroits, Mack, Volvo, and all major engines. He also has experience working on truck and trailer alignment, air brakes, air and spring ride suspensions, welding, and tire maintenance.

An interesting fact that you may not know about Kurt is that he comes from a family of 12 children.

Certifications

ASE Certified Medium/Heavy Truck Technician Certified In:

• Gas Engines
• Diesel
• Drive Train
• Brakes
• Suspension & Steering
• Electrical/Electronic Systems
• Heat/ Ventilation/ Air Conditioning
• Preventive Maintenance Inspection

Other Certifications:

• Cummins Warranty Decision Maker
• Wabco & Bendix ABS
• Cummins 88NT, N14 and M11
• Caterpillar 3176
• Detroit Series 60
• Air Conditioning/ HVAC
• Air Brakes

Troy Ellenbecker, ASE Certified Lead Technician / Assistant Foreman

Troy has been with our company for 15 years. He came to us with 4 years of experience in the repair of all diesel equipment. He graduated from Fox Valley Technical College in 2000 with a Diesel Technology degree.

An interesting fact about Troy is that he loves spending time with his children.

Certifications

ASE Certified Medium/Heavy Truck Technician Certified in:

• Diesel Engines
• Brakes
• Suspension & Steering
• Electrical/Electronic Systems
• Heat / Ventilation / Air Conditioning
• Preventive Maintenance

ASE Advanced Level Specialist Certified in:

• Electronic Diesel Engine Diagnosis

Other Certifications:

• Bendix ABS
• Air Conditioning/HVAC
• Air Brakes

Bob Mroczenski, Lead Light Duty Technician, ASE Certified Master Automobile Technician

Robert "Bob" has been with our company for 15 years. He began as a light/medium duty diesel technician part-time while attending Mid-State Technical College. Bob graduated in 2008 where he received his degree in diesel technology. Bob became a full time mechanic for us in 2008 and works on the light/medium duty side.

An interesting fact you may not know about Bob is that he likes working on engines and old tractors.

Certifications

• ASE Certified Master Automobile Technician Certified In:
• A/C / HVAC
• Brakes
• Drive Trains & Axles
• Electrical/Electronic Systems
• Engine Performance
• Engine Repair
• Suspension & Steering
• Transmissions
• Auto Trans / Transaxle
• Manual Drive Train Axles

Jeffrey Dehnel, ASE Certified Medium / Heavy Truck Technician

Jeff joined our team on May 5, 2014. He comes to us with 27 years of experience in the repair of all diesel equipment. After high school he joined the army where he began his education and work on diesel engines. Jeff's area of expertise is on all makes and models of Detroit engines, he also works on CAT, Cummins and Volvo and other major diesel engines. He also has experience working with electrical systems diagnosis and repair, also diagnosis and repair of all truck systems and components. He also works on truck and trailer alignment, welding and tire maintenance.

An interesting fact that you may not know about Jeff is that he likes to make wine.

Certifications

ASE Certified Master Medium/Heavy Truck Technician Certified In:

• Gas Engines
• Diesel Engines
• Drive Trains
• Brakes
• Suspension & Steering
• Electrical/Electronic Systems
• Heat/ Ventilation/ Air Conditioning
• Preventive Maintenance Inspection

ASE Certified Advanced Level Specialist Certified In:

• L2 Electronic Diesel Engine Diagnosis

Other Certifications:

• Certified Expert in Cascadia Trucks
• DD15, Series 60
• MBE 400, MBE 900
• Air Conditioning/ HVAC
• 2013 - EPA10 DD Series Expert
• 2013 - EPA007 DD Expert
• 2013 - EPA04 Series 60 Expert

Jonah Lang, Electronic Engine Specialist

: Jonah has been working with his Dad since he was a year old. He has been around this business his whole life. Jonah graduated from Wyoming Technical College in 2016. He does many aspects of diesel repair. He also has extensive knowledge in diagnostic work for trucks.

An interesting fact that you may not know about Jonah is that he loves the cooler weather, tinkering on small engines. Also, he likes snowmobiling in the winter and four wheeling in the summer.

Certifications

• GM Advanced Variable Valve Timing
• Diesel Emission Controls
• Air Conditioning

Hanna Lang, Graphics / Marketing Specialist

Hanna started working for the company in 2009. Hanna recently graduated with a degree in Graphic Communication Technologies from Northcentral Technical College. She plans on going to back to school to attain another degree in Digital Marketing. She hopes to start doing in house graphics for the shop and eventually helping customers with their graphics needs. In her spare time, she enjoys four wheeling and spending time with her family, friends and her boyfriend.

Tony Zettler, Parts Runner

Tony is our on-call / part time parts runner and has been with us for 6 years. If we are desperate for a part, and it cannot be delivered, Tony is able to go get it for us. It helps get our customers out the door on a timely manner.

Jason Loos, Head of Operation

Jason joined our team in September of 2017. He came to us with 17 years of experience in truck repair and management. He previously worked at Wisconsin Kenworth for 13 years. In his free time, he enjoys hunting, fishing, and woodworking.

Joel Schultz, Service Manager

Joel joined our team in November of 2015. You might recognize him form Mid-State truck or Pioneer Transportation in Merrill. In his spare time, he enjoys riding his Harley. Joel has two sons and is engaged to Laura Mueller.

Micah Nelson, Service Advisor

Micah joined the E.L.M. crew on May 4th, 2020. He is from Richland Center, Wisconsin. Micah will be working in our Parts Department bringing with him 10 years of experience. In his free time, he enjoys hunting, fishing, hiking, 4-wheeling, watching races, and spending time with his family.

Marshal Kocian, Diesel Technician

Marshal is from Abbotsford, Wisconsin. He joined us in October of 2020. You may recognize him from Midstate Truck Repair or Provision Partners. He comes to us with 8 years of experience as a diesel technician. In his free time, he enjoys fishing and spending time up north at his families cabin.

Kylie Mueller, Office Assistant/ Maintenance

Kylie is from Edgar, Wisconsin. She joined us in September of 2020. Kylie is currently a Junior at Edgar High School. In her free time, she enjoys being outside, hanging out with friends and family, riding ATV/UTV, playing video games, and watching Tik Tok.

Josh Larson, Second Shift Service Advisor

Josh is from Germantown, Wisconsin. He joined us in September of 2021. You may recognize him from Mid State Truck Service. He comes to us with 18+ years of experience in the automotive/ heavy truck and equipment field. In his free time, he enjoys hiking, biking, kayaking, or pretty much anything outdoors.

Ken Hilgart, Outside Sales Manager

Ken joined our team November of 2016. He came to us with 42 years of experience with outside, territory sales managing and fleet managing from Lawrence Hilgart & Sons Logging. Ken was also an owner operator of Ken Hilgart & Sons Trucking. You may also recognize him from Fleet Pride. In his spare time, he enjoys wood working, making custom fishing tackle, and spending time with his grandchildren.

Kim Riesen, Tire Specialist

Kim joined our team in January of 2016. He previously worked at CWC in Stratford. Kim is originally from Beatrice, Nebraska where he grew up on a 150-cow dairy farm. In his spare time, he enjoys bowling, hunting, fishing, and watching sports. He also loves to spend time with his family.

Derek Koskta, Diesel Technician

Derek joined our team in July of 2017. He came to us with 15 years of experience in the industry. He previously worked at Mid-State Truck. In his spare time, he enjoys working on cars and trucks and building trucks for mudding.

Michael Vine, Second Shift Diesel Technician

Michael joined our team March of 2019. He is from Granton, Wisconsin and comes to us with 4 years of experience in the industry. Growing up on his family farm, Michael’s interest in becoming a diesel technician came from working on tractors with his father. In his free time, Michael enjoys hunting, fishing, and ATV trail riding.

Amy Yessa, Office Manager

Amy is from Wausau, Wisconsin. She joined us in October of 2020 . You may recognize her from Wisconsin Kenworth. She comes to us with a little over 6 years of experience as an office manager. In her free time, she enjoys hiking, concerts, traveling, reading, gardening, cooking, raising jersey calves and chickens, and soaking up the sun during the summer.

Mike Spring, Second Shift Diesel Technician

Mike is from Stratford, Wisconsin. He joined us in September of 2020. He comes to us with 10 years of experience. In his free time, he enjoys spending time with his son, fishing, ice fishing, camping, hunting, shooting guns, going to car shows, and rebuilding and restoring old tractors.

Devin Dieringer, Driveline Repair Specialist / Electronic Engine Technician

Devin is from Marshfield, Wisconsin. He joined us in March of 2021. Devin recently graduated from Marshfield High School where he enjoyed machining classes and decided to jump into his profession. In his free time, he enjoys hunting, fishing, tractor pulling, 4-wheeling, snowmobiling, and fixing old tractors.