Wagler Competition

Wagler Competition Products: Pushing the Limit, Setting the Standard

Wagler Competition Products was born from a genuine obsession with diesel performance. Founded in 2011 by Jeremy Wagler in Odon, Indiana — squarely in the heart of diesel country — the company traces its origins to a singular achievement: the development of the first aftermarket cylinder head designed specifically for the GM Duramax engine. That breakthrough didn't just launch a business; it set the tone for everything Wagler would become.

Before starting Wagler Competition Products, Jeremy spent over a decade running an automotive repair shop, building the hands-on expertise and passion for diesel engines that would eventually define his brand. When he turned that experience toward high-performance engineering, the result was a company that refuses to treat diesel performance as an afterthought. As their motto says, they push the limit and set the standard.

Race-Proven, Street-Ready Engineering

What separates Wagler from the pack is their commitment to doing everything in-house. From engineering and drafting to CNC machining, assembly, and dyno testing, every component that leaves their Southern Indiana facility has been validated under the same roof where it was designed. This level of vertical integration means tighter quality control and products that have been genuinely stress-tested — not just spec-sheet engineered.

Wagler's catalog covers the full spectrum of diesel performance builds, from mild street trucks to all-out competition rigs capable of four-digit horsepower. Their parts are engineered for the three dominant diesel platforms in North America: the Chevy/GMC Duramax, the Dodge/RAM Cummins, and the Ford Powerstroke. Whether you're building a tow rig, a drag truck, or a sled puller, Wagler has components purpose-built for your goals.

Core Product Lines

Wagler's lineup spans several critical engine systems. Their aftermarket cylinder heads feature unique port designs engineered for improved airflow and greater horsepower output — the very product that started it all. Their connecting rods — available in both billet and forged variants — are trusted in builds chasing everything from 1,000 HP daily drivers to 1,750+ HP competition engines. The valvetrain lineup includes performance camshafts, dual valve spring kits, and chromoly pushrods designed to handle extreme spring pressures. Rounding out the portfolio are rotating assemblies and block reinforcement components like billet main caps and street girdles that add critical rigidity to high-output bottom ends.

For diesel enthusiasts who refuse to compromise, Wagler Competition Products represents the intersection of grassroots passion and professional-grade engineering. Their parts aren't designed in a boardroom — they're developed by diesel people, for diesel people, and proven in some of the most punishing competition environments on the planet.