JE Pistons Pro Seal Piston Rings JG4904-3917

JE Pistons Pro Seal piston rings feature barrel-faced top rings made from premium ductile iron. They also have a special high-tech, friction-reducing, plasma-moly inlay on the face that combines molybdenum, nickel, chrome, and trace elements. The results are higher temperature resistance, reduced wear, better ring sealing, and reduced flaking. The second rings are a taper-faced, reverse-torsional design with a special phosphate coating. The oil-control rings are available in your choice of either low or standard-tension types. Choose the set designed for fitment on your engine application.Brand: JE Pistons
Manufacturer's Part Number: JG4904-3917
Part Type: Piston Rings
Product Line: JE Pistons Pro Seal Piston Rings
HP Direct Part Number: JEP-JG4904-3917
UPC: 193564241917
Bore (in.): 3.917 in.
Bore (mm): 99.490mm
Piston and Ring Oversize (in.): Standard
Piston and Ring Oversize (mm): Standard
File Fit: Yes
Gapless: No
Gas Ported: No
Top Ring Included: Yes
Top Ring Thickness: 1.2mm
Top Ring Material: Carbon steel
Top Ring Facing Material: Gas nitrided
Second Ring Included: Yes
Second Ring Thickness: 1.2mm
Second Ring Material: Iron
Second Ring Facing Material: Phosphate coated
Oil Ring Included: Yes
Oil Ring Thickness: 2.5mm
Oil Ring Tension: Low
Oil Ring Material: Carbon steel
Oil Ring Facing Material: Chrome
Quantity: Sold as 4 sets.
Notes: This set is designed to work with forged side relief (FSR) designs and will work with turbocharger and nitrous applications.