Hastings "Tough Guy" Racing File-Fit Piston Ring Set - Bore Size: 4.040" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3/16" - Oil Ring Tension: Standard AS04221 25 Degree Layback

25 Degree Layback

lock angle and 3/8" valve stem size

Premium DOD 5

Vehicle Applications: 2005 thru 2006 Jeep Wrangler 4

Hastings "Tough Guy" Racing File-Fit Piston Ring Set - Bore Size: 4.040" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3/16" - Oil Ring Tension: Standard AS04221 25 Degree LaybackHastings racing piston rings deliver race winning performance in even the most extreme applications. The low tension, low friction design provides unsurpassed combustion seating and exceptional sealing. Each set includes plasma moly, high tensile cast iron top rings; reverse twist, taper faced cast iron second rings, and choice of standard or low tension Flex Vent stainless steel oil control rings. Low tension oil rings make significant increases in