Coated Performance Pistons (.020)

Features:

• Fits 1989–1993 RAM 5.9L 12V Cummins
• .020" oversized for rebuilt performance engines
• Sold as a complete set of six pistons
• Includes rings, wrist pins, and clips
• Chamfered tops to reduce cylinder wall scuffing
• Thermal barrier coating on piston tops
• Ceramic skirt coating for extreme durability
• Handles temperatures exceeding 1600°F
• Supports heavy loads and high boost levels
• Improves combustion chamber efficiency and torque

Performance Piston Set for 5.9L Cummins

If you're rebuilding a 12-valve Cummins and want it to be stronger, more efficient, and ready for serious performance, the Industrial PDM-03523CC.020 Coated Performance Pistons are exactly what you want under the hood. Designed for 1989–1993 RAM 2500 and 3500 trucks, these .020" oversized pistons bring the kind of real-world durability and advanced technology you need when stepping beyond stock power levels. Each piston in the set features a chamfered top, a small but crucial detail that helps minimize swelling and scuffing against the cylinder wall under high-heat, high-load conditions. It’s the kind of protection that ensures smoother operation and longer engine life, especially when you’re pushing more boost, more fuel, and asking a lot more from your build.

Chamfered and Coated Build

The tops of these pistons are finished with a thermal barrier coating, specifically engineered for engines that see nitrous, supercharging, or heavy turbocharging. By keeping more heat in the combustion chamber, the coating improves combustion efficiency, boosts torque, and helps the engine make more horsepower during the critical power stroke—all while protecting the piston itself from heat damage. It's a performance gain and a durability upgrade rolled into one. Industrial didn’t stop at the tops either. The piston skirts are coated with a high-performance ceramic composite capable of carrying loads over 350,000 PSI and lubricating at temperatures beyond 1600°F. This reduces friction during high-RPM, high-load operation, keeping the engine running smoother and cooler even under the harshest conditions. Plus, with a coating thickness of just .001", you won’t need to change your piston-to-wall clearance, making installation straightforward.

Includes High-Quality Hardware

Each kit includes six pistons along with rings, wrist pins, and clips, giving you everything you need for a complete, professional-quality install. Whether you're refreshing an old workhorse or building a truck for serious towing, racing, or street performance, these pistons offer the toughness and performance edge you need.

Fits: 1989, 1990, 1991, 1992, 1993 RAM 2500/3500 5.9L 12V Cummins