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Engine piston rings are critical components for maintaining optimal engine performance and longevity. Selecting the correct replacement rings ensures proper sealing, oil control, and efficient combustion. Investing in high-quality piston rings can prevent costly engine damage and improve fuel economy.
PRODUCT INFORMATION: The piston is made of durable material, which balances the engine and allows high-speed driving, and the wear-resistant coating on the side skirt area can reduce the friction between the piston and the cylinder wall.
Complete Plasma Moly Ring Set – Includes a full set of Hastings 2M4860 piston rings for (8) pistons – designed for stock bore 4.000” 6.0L GM LS engines.
Ideal for High-Performance or OEM Rebuilds – Great for naturally aspirated and mild forced induction builds, offering OEM-level sealing with upgraded durability.
Top Ring: Plasma Moly Coated – Provides excellent wear resistance and superior heat control, making it ideal for street performance and long-term reliability.
Second Ring: Reverse-Twist Cast Iron – Designed for optimal oil scraping and blow-by reduction, improving ring seal efficiency during break-in and high-RPM use.
Include: 40 x Piston Rings-Standard Size, Replace OEM: 2M4978, a Complete Set for One Engine, are same with OEM standard quality, perfectly matching your original car, and can be installed directly
Fitment: Moly Piston Rings for for Chevy 4.8L 5.3L LC9 LS4 1999-2015, Moly Piston Rings for GMC 4.8L1999-2015, Moly Piston Rings for GMC 5.3L LC9, LS4 1999-2013 Engines, more detailed fitment please see bellow
Standard Specifications: Bore: 96mm/3.779 in. First Ring: 1.5mm/0.0591in. Second Ring: 1.5mm/0.0591in. Oil Ring: 3.0mm/0.118in.
When to replace: Molybdenum Coating-Reduce friction and better absorb fuel, Piston Rings help you solve problems: decreased engine performance, insufficient power, increased fuel consumption, oil burning, or blue smoke from exhaust, cylinder pulling etc.
COMPATIBILITY – Fits 2003-2006 Cadillac Escalade ESV; 2002-2006 Cadillac Escalade EXT; 2006-2007 Cadillac CTS; 1999-2000 Cadillac Escalade; 2002-2006 Cadillac Escalade; 2005-2006 Chevrolet SSR; 2007-2007 Chevrolet Silverado 2500 HD Classic...
GET THE RIGHT PART -- Before purchasing, please check the “Amazon Confirmed Fit” bar to ensure this part will fit your vehicle; enter all vehicle information (year, make, model, engine and trim) for compatibility and check qualifier notes. If the...
Face of top rings coated with latest generation Plasma-Moly
【COMPATIBLE MODELS】:Engine Pistons & Rings Kit. Fits for 2012-2017 Terrain 2.4L, Fits for 2011-2018 2010-2017 Equinox 2.4L.
【WARM TIPS】:Before placing your order, please double-check and confirm that the model number and part number of the piston rings you are ordering match the specifications of your specific device. It is important to verify compatibility to avoid any...
【QUALITY ASSURED】: Our 12578324 piston rings undergo thorough inspections to ensure durability and are crafted with high-quality materials, providing you with reliable and long-lasting solutions.
Last update on 2026-10-16 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Automotive Replacement Engine Piston Rings
Material Composition
Cast Iron: A common and cost-effective option, suitable for many standard applications.
Ductile Iron: Offers increased strength and durability over standard cast iron, ideal for performance or heavy-duty use.
Steel Alloys: Provide superior strength, heat resistance, and wear characteristics, often used in high-performance or racing engines.
Ring Type and Design
Compression Rings: The top rings responsible for sealing the combustion chamber. Ensure they match the original equipment manufacturer (OEM) specifications for bore size and profile.
Oil Control Rings: Located below the compression rings, these manage oil flow to prevent excess oil from entering the combustion chamber. Different designs (e.g., two-piece, three-piece) offer varying levels of oil control and tension.
Coatings: Some rings feature coatings like chrome, molybdenum, or plasma spray for enhanced durability and reduced friction.
Engine Specifications
Bore Size: Piston rings must precisely match the cylinder bore diameter for a proper seal. Measure accurately or consult your engine's service manual.
Piston Type: Ensure compatibility with your piston's groove depth and design (e.g., standard, Napier hook).
Engine Application: Consider whether the engine is used for daily driving, towing, or racing, as this influences the required durability and performance characteristics of the rings.
Frequently Asked Questions
What is the primary function of piston rings?
Piston rings serve three main functions: sealing the combustion chamber to prevent gas leakage, regulating the amount of oil reaching the cylinder walls, and transferring heat from the piston to the cylinder wall for dissipation.
How do I know which size piston rings I need?
Accurate measurement of the cylinder bore is essential for selecting the correct piston ring size. Consulting your vehicle's service manual or using a bore gauge will provide the precise diameter required.
Are coated piston rings worth the extra cost?
Coated piston rings, such as those with molybdenum or chrome, generally offer improved wear resistance and reduced friction. This can lead to longer ring life and better engine performance, often justifying the higher price for demanding applications.
Can I reuse my old piston rings?
It is strongly advised not to reuse old piston rings. Used rings are already worn and may not provide an adequate seal, leading to decreased performance, increased oil consumption, and potential engine damage.
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