Your trusted source of OEM and aftermarket heavy duty parts, tools, and hydraulic hosing

Perfectly curated in a Milwaukee® Tool Packout™ organizer, these comprehensive kits equip you to take your fittings, O-rings, and adapters wherever the job demands.

We are excited to announce that we will be hosting ASE 609 Certification classes at both our Lithia Springs and East Dublin locations May 26^th & 27^th. This is a fantastic opportunity for automotive professionals to gain essential EPA certification in refrigerant recovery and recycling, ensuring compliance with industry standards. Registration ends May 17^th

Shop our complete selection of fittings!

Keep your technicians moving with labeled bins and dependable supply. Ask about our custom shop setup today!

This quarter, we’re proud to recognize Brian as our Employee of the Quarter. Known for jumping in without hesitation and holding himself—and others—to a high standard, Brian brings unmatched dedication, accountability, and heart to our team. Beneath his tough exterior is a genuine commitment to the company and the people who make it run every day.

Now available in convenient 5-gallon pails with an easy-pour spout.

Formulated to meet or exceed OEM standards, improve mileage, and reduce NOx emissions across on-road and off-road diesel applications.

Ask us about pallet quantity discounts!

Great American Inc. is proud to celebrate 45 years of serving the trucking and heavy-duty parts industry. Since 1980, we’ve built our legacy on quality, service, and strong community ties—thank you for being part of our journey!

Looking ahead to 2025, we’re committed to providing even better products, service, and value. To help us improve, we’d love your feedback!

Take our quick Customer Feedback Survey, and as a thank you, you’ll be automatically entered for a chance to WIN an awesome prize! 🎁 Your opinion matters, and this is our way of saying THANK YOU! ❤️

Introducing our latest innovation! Perfect for any high-performance battery setup, this 83-piece kit includes 20 different part numbers and is a comprehensive, versatile solution that ensures a secure, high-quality connection every time.

Perfectly curated in a Milwaukee® Tool Packout™ organizer, these comprehensive kits equip you to take your fittings, O-rings, and adapters wherever the job demands.

We are excited to announce that we will be hosting ASE 609 Certification classes at both our Lithia Springs and East Dublin locations May 26^th & 27^th. This is a fantastic opportunity for automotive professionals to gain essential EPA certification in refrigerant recovery and recycling, ensuring compliance with industry standards. Registration ends May 17^th