TS Gapl. Piston Ring Set Ford 6.4L Diesel 3.886

The TOTAL SEAL Piston Ring Set for Ford 6.4L Diesel with 3.886-inch bore diameter is engineered for street performance and rebuild applications on Powerstroke engines. This complete ring kit delivers the precise compression seal and blow-by control needed to restore lost power and economy in high-mileage diesel blocks while maintaining OEM-spec tolerances.

Each ring set features a three-piece design with 2.5mm top ring, 2.0mm second ring, and 3.0mm oil ring, all manufactured from steel for durability and thermal stability under diesel combustion loads. The standard tension rating is calibrated for Ford Powerstroke applications, ensuring proper gas sealing without excessive groove wear. The 3.886-inch bore specification matches the exact cylinder diameter of 6.4L engines, eliminating guesswork during installation and guaranteeing compliance with factory piston specifications.

This ring set serves diesel mechanics, engine rebuilders, and Ford Powerstroke owners tackling full engine overhauls or top-end rebuilds where compression has degraded from extended high-load use. Typical applications include fleet maintenance shops, owner-operator truck repair, and serious enthusiasts restoring worn 6.4L power plants to factory performance. Proper ring installation requires measuring bore condition, honing to specification, and careful piston-to-bore clearance verification—a job best handled by experienced diesel technicians.

TOTAL SEAL is recognized in performance and racing markets for precision ring engineering, and this OEM-compatible street ring set reflects that manufacturing standard. For Ford 6.4L Diesel engine rebuilds requiring proven ring quality at competitive pricing, this piston ring set delivers the accuracy diesel rebuilders depend on.