Engine Test Cell Intern

Job Overview 

PACCAR Powertrain is seeking motivated and innovative engineering students to join our Summer 2026 Internship Program within the Engine Test Lab team. Interns will work hands-on with heavy duty powertrain systems to support testing, validation, and performance evaluation of PACCAR’s next generation engines and aftertreatment technologies. 

What to Expect

• Schedule: Full-time (40 hours/week), in person  

• Duration: Minimum 12 weeks 

• Location: Mount Vernon, WA 

• Start Dates: May 18, 2026, or June 22, 2026 

• Visa Sponsorship: Not available for this role (H1B, TN, OPT, etc.) 

About PACCAR 

PACCAR, Inc. is a Fortune 500 company established in 1905 and is recognized as a global leader in the commercial vehicle, financial, and customer service fields. PACCAR is a global technology leader in the design, manufacture, and customer support of high-quality light-, medium- and heavy-duty trucks under its internationally recognized brands Kenworth, Peterbilt and DAF nameplates. PACCAR designs and manufactures advanced diesel engines and provides customized financial services, information technology and truck parts related to its principal business. 

About PACCAR Powertrain 

Global PACCAR Powertrain organization engineers and manufactures integrated, high efficiency engines, automated transmissions, and axle systems for Kenworth, Peterbilt, and DAF trucks. Through advanced engineering, vertically integrated manufacturing, and robust aftermarket support, the organization delivers powertrain systems optimized for performance, durability, fuel efficiency, and sustainability. 

Its portfolio includes PACCAR’s MX13 and MX11 engines, TX12 and TX18 automated transmissions, and advanced axle technologies—designed to function as a fully integrated system that enhances drivability, reduces lifecycle costs, and ensures consistent reliability across PACCAR’s global truck brands. 

Job Responsibilities  

As an Engine Test Intern, you will work alongside experienced engineers and technicians to support testing activities in a world-class engine development environment. You will contribute to: 

• Conducting performance, durability, and emissions tests on heavyduty engines and powertrain systems 

• Supporting validation of new engine hardware, software, and aftertreatment components 

• Designing and building tools or fixtures to improve powertrain testing efficiency, emissions measurement, and data processing workflows 

• Troubleshooting issues with test cell instrumentation and data acquisition systems 

• Analyzing test data using tools such as AVL Concerto 

• Assisting with technical report preparation and documentation updates for instrumentation and data acquisition systems 

Qualifications  

Required: 

• Currently in junior or senior year of a bachelor’s degree program (graduation 2026–2027) in Engineering (Mechanical, Electrical, Mechatronics), other STEM fields, or related discipline. 

• Strong computer and data analysis skills 

• Proficiency in Microsoft Office applications 

• Ability to collaborate effectively with ETL technicians and engineering staff 

• Strong verbal and written communication skills 

• Ability to work independently and as part of a team 

Preferred: 

• Experience with test instrumentation, data acquisition, or powertrain systems 

• Familiarity with MATLAB, Python, or similar tools 

Paccar Benefits 

• The pay range for this position is $25.00 - $30.00/hour (pay varies by undergraduate and graduate degree) 

• SIP 401k with up to a 5% company match  

• Paid Holidays (work-location scheduled) 

• Sick Leave (WA only) 

• Health, Dental, and Vision insurance   

• Flexible Spending Account (FSA) / Health Savings Account (HSA)  

• Life and Accidental Death and Dismemberment insurance EAP services include wellness plans, estate planning, financial counseling, and more 

Additional Job Board Information   

PACCAR promotes equal employment opportunities by implementing policies and practices that ensure employees and applicants are not discriminated against because of their race, color, religious creed, national origin, ancestry, sex, gender, gender identity or expression, sexual orientation, age, mental or physical disability, medical condition, genetic information, military or veteran status or other legally protected status. This applies to recruitment, selection, placement, promotion, termination, rates of pay, and other conditions of employment.