Piston Set By JE - 84mm Standard Bore - 9.5: 1 CR - Stock Stroke 89.6mm - BMW N55/S55

Description NOTE: Image shown not actual parts. JE Pistons is the leader in forged racing pistons. With 70-plus years of experience, in-house forging, and industry-leading technology, JE Pistons are designed to perform at the top levels of all forms of motorsports. Bore (in) 3.307 Bore (mm) 84. Top Compression Ring Thickness 0.0400 Second Compression Ring Thickness 0.0480 Oil Ring Thickness 0.111 Forging Type FSR Volume (cc) -14.70 Series JE Pistons Piston Head Type Inv Dome/Dish Pin Diameter (IN) 0.866 Compression Height 1.275 Make BMW Wrist Pin Style – floating or press fit Floating Wall Type CHAMFERED Wall Thickness (IN) 0.150.

Ringset Part Number JG1001-3307-AL Ring Brand ProSeal Ringset Included Yes Retainer Thickness 0.063 Retainer Lock Style Wire Lock Retainer Lock Part Number 866-063-MW Retainer Diameter (IN) 0.866 Replacement Single Piston 338096S Piston Pin Inside Diameter 0.566 Piston Pin Material 5115 LOW CARBON STEEL, CASE HARDENED Piston Material 2618 Piston Pin Length (IN) 2.250 Pin Offset Yes Pin Brand JE Pistons Pin Part Number 866-2250-15-51C Pin Included Yes Pin Diameter (mm) 22.00 Oil Rail Support Included No Deck Clearance 0.000 Brand JE Pistons OE Part #’s 11-25-8-619-196 / 11 25 8 619 196 / 11258619196.

11-25-7-645-958 / 11 25 7 645 958 / 11257645958.