{"product_id":"mahle-s41940-020-engine-piston-ring-set","title":"Mahle S41940.020 Engine Piston Ring Set","description":"\u003ch2\u003eEngine Piston Ring Set for Ford Super Duty and Excursion Models\u003c\/h2\u003e\u003cp\u003eThe Mahle S41940.020 engine piston ring set is designed for precise fitment and reliable performance in select Ford vehicles. Engineered to meet the demands of Ford E-350 Club Wagon, E-350 Super Duty, Excursion, F-250 Super Duty, and F-350 Super Duty models, this piston ring set supports optimal engine compression and oil control.\u003c\/p\u003e\u003ch2\u003eKey Features of Mahle S41940.020 Piston Ring Set\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBore diameter of 3.7598 inches for accurate cylinder fit\u003c\/li\u003e\n\u003cli\u003ePremium item grade ensuring durability and consistent performance\u003c\/li\u003e\n\u003cli\u003e2-piece cast iron oil ring assembly with 0.1353 inch axial height thickness\u003c\/li\u003e\n\u003cli\u003ePlasma-moly coating on piston ring face for enhanced wear resistance\u003c\/li\u003e\n\u003cli\u003eOversize piston rings at 0.020 inch for engine rebuilds and repairs\u003c\/li\u003e\n\u003cli\u003eCast iron second ring with 0.0779 inch thickness for effective sealing\u003c\/li\u003e\n\u003cli\u003eCarbon steel top ring with 0.0901 inch thickness for high strength and durability\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description of the Mahle Engine Piston Ring Set\u003c\/h2\u003e\u003cp\u003eThis Mahle engine piston ring set, part number S41940.020, is manufactured to meet stringent quality standards for Ford heavy-duty trucks and vans. The set includes a 2-piece oil ring assembly made from cast iron, designed to maintain proper oil control and reduce consumption. The plasma-moly coating on the piston ring face improves wear resistance and helps maintain a tight seal under high temperature and pressure conditions. Oversized by 0.020 inches, these rings accommodate cylinder bore reconditioning, ensuring a precise fit and restoring engine compression. The combination of cast iron and carbon steel materials in the second and top rings provides a balance of durability and sealing efficiency, critical for maintaining engine performance in Ford E-350 Club Wagon, E-350 Super Duty, Excursion, F-250 Super Duty, and F-350 Super Duty models.\u003c\/p\u003e\u003ch2\u003eApplications and Common Engine Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores compression loss due to worn or damaged piston rings\u003c\/li\u003e\n\u003cli\u003eReduces excessive oil consumption and smoking\u003c\/li\u003e\n\u003cli\u003eImproves engine efficiency and power output\u003c\/li\u003e\n\u003cli\u003eAddresses blow-by gases and prevents contamination of engine oil\u003c\/li\u003e\n\u003cli\u003eSupports engine rebuilds requiring oversize piston rings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the cylinder bore is properly honed and cleaned before installation to achieve optimal ring seating. Verify the bore diameter matches the 3.7598 inch specification and confirm the oversize ring dimension of 0.020 inch is compatible with your engine rebuild requirements. Follow manufacturer torque specifications and ring end gap clearances during installation to prevent premature wear or engine damage.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eMahle piston rings are manufactured under strict quality control processes to meet OEM standards. This premium grade piston ring set is designed for durability and consistent performance in heavy-duty Ford engines. Warranty coverage details should be confirmed with the original equipment manufacturer or authorized distributor.\u003c\/p\u003e","brand":"Mahle","offers":[{"title":"Default Title","offer_id":52131697918133,"sku":"FLHQ-S41940.020","price":60.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/VG_S41940020_Zz1.jpg?v=1775172595","url":"https:\/\/www.partcatalog.com\/products\/mahle-s41940-020-engine-piston-ring-set","provider":"PartCatalog","version":"1.0","type":"link"}