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Genuine STIHL Engine Piston Rings (46mm x 1.5mm)

Restore factory-standard compression, power, and fuel efficiency to your machinery with this Original STIHL Piston Ring Set. Worn or scored piston rings cause lost compression, hard starting, and a noticeable drop in cutting or blowing power. Replacing them with genuine OEM rings ensures a flawless, low-friction seal against the cylinder wall, protecting your engine's powerhead from severe internal damage.

Crafted from high-grade, heat-resistant alloy, these original parts are engineered to withstand the continuous high-RPM workloads of professional chainsaws, backpack leaf blowers, and mistblowers.

Specifications

• Diameter: 46 mm

• Thickness: 1.5 mm

Features

• 100% Original STIHL Spare: Guarantees precise tension and metallurgy for minimal cylinder wear.

• Restores Engine Power: Eliminates pressure leaks (blow-by) to maximize throttle response and torque.

• Long-Lasting Performance: Built to handle the high heat and extreme operating conditions of commercial outdoor power equipment.

Exact Model Compatibility

This genuine 46mm piston ring set is a direct replacement for the Cylinder / Crankcase assemblies of the following STIHL models:

Chainsaws

• 028 / 028 W / 028 WB / 028 Q (Fits Cylinder and Muffler assemblies)

• 029 (Fits Cylinder 029)

• MS 290 (Fits Cylinder)

• 034 / 034 S / 034 FB (Fits Cylinder)

• 034 AV Series — AVEQ, AVEQW, AVEQ-FD, AVSEQ, AVSEQW, AVSEQWN, AVSEQN (Fits Cylinder)

Backpack Leaf Blowers & Mistblowers

• BR 380 / BR 400 / BR 420 (Fits Crankcase and Cylinder)

• SR 400 / SR 420 (Fits Crankcase and Cylinder)