Diamond Power Piston & Piston Rings works with Dodge Dakota Durango Nitro Ram 1500 Jeep Commando Grand Cherokee Liberty Mitsubishi Raider 3.7L V6 Vin K 2 Year Warranty (This product must be installed by a certified professional mechanic) Same day shipping when purchased before 3pm EST Our products are tested and meet or exceed OEM performance requirements Fits 02-10 Fits Jeep Dodge 3.7L Liberty Dakota Durango Piston Rings are made with the best quality materials, all rings are chrome