DJ Rock PR193 Engine Piston Ring Set

Engine piston ring set overview

DNJ PR193 is a premium engine piston ring set built for a precise seal between the piston and cylinder wall. It is specified for 81 mm bore applications and uses a 1.0 mm top ring, 1.2 mm second ring, and 2.0 mm oil ring configuration.

Compatible With Hyundai Elantra, Kia Forte, Kia Soul, Hyundai Kona, Hyundai Veloster, and Kia Seltos applications listed below. The PR193 part number is used for multiple 1.0 x 1.2 x 2.0 mm engine service applications across these platforms.

• Premium-grade piston ring set for internal engine sealing
• 81 mm bore diameter for matched cylinder fitment
• Top compression, second compression, and oil control ring design
• Manufactured from cast iron or steel alloy materials for wear resistance
• Surface treatments such as chrome, molybdenum, or nitriding improve ring performance

Detailed application and function

This piston ring set helps maintain compression, regulate oil consumption, and support heat transfer within the cylinder assembly. It is a direct engine service component for Hyundai Elantra and Kia Forte applications that require the listed ring thicknesses and 81 mm bore sizing. DNJ PR193 is engineered to meet or exceed OEM quality standards, making it a practical choice for rebuild and repair work where ring sealing and cylinder control are critical. The PR193 part number should be matched to the engine specification before installation.

Common issues this part addresses

• Low compression caused by worn or damaged rings
• Excessive oil consumption from poor oil control sealing
• Blow-by from reduced piston-to-cylinder sealing
• Uneven cylinder performance during engine service
• Loss of ring sealing efficiency under heat and wear

Installation notes and quality assurance

Verify bore diameter, ring thickness, and engine code before assembly. Clean cylinder walls thoroughly and inspect piston grooves for wear or damage before installing the rings. Proper ring end gap measurement and cylinder preparation are essential for correct engine rebuild results.

DNJ manufactures these ring sets to meet or exceed OEM quality standards for consistent engine service performance.