Feature: 1. Applicable Model: This boat motor piston ring kit is suitable for Mercruiser Quicksilver 30 to 60HP. Its robust construction ensures that it can withstand the demands of daily use. 2. OE Number: 39 827491A12, 39 893525A01 are the reference part number. It is engineered to meet or exceed OEM specifications, ensuring that it matches the form and function of the original equipment. 3. Superior Durability: The piston ring set is made from sturdy metal alloy material that helps resist everyday wear and tear, ensuring reliable operation and extended lifespan. 4. Enhanced Seal and Performance: With the installation of the new piston rings from this set, the engine benefits from improved sealing capabilities for enhanced performance. 5. Extended Engine Life: By replacing worn out or damaged piston rings with this aftermarket set, the engine's overall lifespan can be extended. Specification: Item Type: Piston Ring Set Material: Metal alloy OE: 39 827491A12, 39 893525A01 Diameter: STD size Installation Type: Direct ReplacementFitment: Fit for Mercruiser Quicksilver 30 to 60HP 30 EFI (3 CYL.)(4-STROKE) Crankshaft Pistons and Connecting Rods - Engine Numbers 1C456300 and Up 30 EFI (3 CYL.)(4-STROKE) Crankshaft Pistons and Connecting Rods - Engine Numbers 1C109093 THRU 1C456299 35 EFI (4 CYL.)(4-STROKE) JET Crankshaft Pistons and Connecting Rods - Engine Numbers 1C453840 and Up - USA 40 EFI (3 CYL.)(4-STROKE) Crankshaft Pistons and Connecting Rods - Engine Numbers 1C456300 and Up 40 EFI (3 CYL.)(4-STROKE) Crankshaft Pistons and Connecting Rods - Engine Numbers 1C000001 THRU 1C043416 40 EFI (3 CYL.)(4-STROKE) Crankshaft Pistons and Connecting Rods - Engine Numbers 1C043417 THRU 1C456299 40 EFI (3 CYL.)(4-STROKE) Crankshaft Pistons and Connecting Rods - Engine Numbers 0P401000 THRU 0P515896 - Belgium 40 EFI (4 CYL.)(4-STROKE) Crankshaft Pistons and Connecting Rods - Engine Numbers 0P401000 THRU 0P515896 - Belgium 40 EFI (4 CYL.)(4-STROKE) Crankshaft Pistons and Connecting Rods - Engine Numbers 0P515897 THRU 1C453839 - Belgium 40 EFI (4 CYL.)(4-STROKE) Crankshaft Pistons and Connecting Rods - Engine Numbers 1C000001 THRU 1C050251 - USA 40 EFI (4 CYL.)(4-STROKE) Crankshaft Pistons and Connecting Rods - Engine Numbers 1C050252 THRU 1C453839 - USA 40 EFI (4 CYL.)(4-STROKE) Crankshaft Pistons and Connecting Rods - Engine Numbers 1C453840 and Up - USA 40 EFI (4 CYL.)(4-STROKE)(JET) Crankshaft Pistons and Connecting Rods - Engine Numbers 1C453840 and Up - USA 40 EFI (4 CYL.)(4-STROKE)(JET) Crankshaft Pistons and Connecting Rods - Engine Numbers 1C051324 THRU 1C453839 - USA 40 EFI SEAPRO (4 CYL.)(4-STROKE) Crankshaft Pistons and Connecting Rods - Engine Numbers 1C453840 and Up - USA 50 EFI (4 CYL.)(4-STROKE) Crankshaft Pistons and Connecting Rods - Engine Numbers 0P515897 THRU 1C453839 - Belgium 50 EFI (4 CYL.)(4-STROKE) Crankshaft Pistons and Connecting Rods - Engine Numbers 1C453840 and Up - USA 50 EFI (4 CYL.)(4-STROKE) Crankshaft Pistons and Connecting Rods - Engine Numbers 0P401000 THRU 0P515896 - Belgium 50 EFI (4 CYL.)(4-STROKE) Crankshaft Pistons and Connecting Rods - Engine Numbers 1C000001 THRU 1C050251 - USA 50 EFI (4 CYL.)(4-STROKE) Crankshaft Pistons and Connecting Rods - Engine Numbers 1C050252 THRU 1C453839 - USA 60 EFI (4 CYL.)(4-STROKE) Crankshaft Pistons and Connecting Rods - Engine Numbers 0P401000 THRU 0P515896 - Belgium 60 EFI (4 CYL.)(4-STROKE) Crankshaft Pistons and Connecting Rods - Engine Numbers 1C453840 and Up - USA 60 EFI (4 CYL.)(4-STROKE) Crankshaft Pistons and Connecting Rods - Engine Numbers 1C050252 THRU 1C453839 - USA 60 EFI (4 CYL.)(4-STROKE) Crankshaft Pistons and Connecting Rods - Engine Numbers 1C000001 THRU 1C050251 - USA 60 EFI (4 CYL.)(4-STROKE) Crankshaft Pistons and Connecting Rods - Engine Numbers 0P515897 THRU 1C453839 - Belgium 60 EFI SEAPRO (4 CYL.)(4-STROKE) Crankshaft Pistons and Connecting Rods - Engine Numbers 1C453840 and Up - USA Formula 60 Crankshaft Pistons and Connecting Rods - Engine Numbers 1C104574 and Up . Package List: 1 x Piston Ring Set (5pcs) Note: Please verify the part number and vehicle model year before purchasing and ensure compatibility.