Mack E7 E-Tech EUP Inframe Overhaul Rebuild Kit, High Performance, Piston 215SB231A

Anti-Friction Coated Piston Skirts Ceramic Coated Piston Crowns Improved Cylinder Liner Cooling Tri-Metal Bearings with a High Fatigue Strength Coating Isotropic Superfinish Piston Pins 3 Year Warranty Important Notice Camshaft Break-In Hints Mechanic Steering Wheel Hang Tag Engine Break-In Procedure Mack E7 E-Tech EUP Inframe Engine Rebuild KitKit contains Two-Piece, Piston 215SB231A Please Note: Per Mack Bulletin Number SB211007, changes have been made to early design Mack E7 cylinder liners and the way all liners are to be installed in the E7 platform moving forward. Please see the photo below for a visual representation of the new instructions.  ELIMINATION OF CREVICE SEAL & O-RING 1. Some E-7 Engines have an O-ring groove below the cylinder sleeve seat, and some do not. It has been determined that this O-ring is not required as long as silastic is used at the sleeve shoulder. 2. Clean liner & block to assure removal of all contamination & oil. 3. Apply a .120" to .160" inch bead of RTV Silicone (PAI BSR-0385, Dow Corning #RTV732, or General Electric #RTV103 Silastic Sealant) to the cylinder block sleeve shoulder 360 degrees. DO NOT use excessive amount. Sealant must be applied just prior to installation of the sleeves to prevent partial curing and questionable sealing and bonding. 4. From the beginning of E7 PLN and E-Tech engine production, a crevice seal, similar to an o-ring, was installed in the groove located in the outside diameter of the cylinder sleeve, near the sleeve top. It has been determined, however, that the crevice seal is not necessary. Therefore, effective approximately December 1998(engine serial number series 8Y), the crevice seal is no longer used in production engines. Additionally, effective January 1999 (engine serial numbers series 9A), the crevice seal groove in the cylinder sleeve has been eliminated.  Effective with these production changes, the cylinder sleeve provided with our engine rebuild kits will not have the crevice seal groove, and it is recommended that use of the crevice seal be discontinued in all engine repairs or rebuilds, whether or not the liner has a crevice seal groove. Inframe Kit Includes (6) Cylinder Kits (Piston with pin & locks, Piston Rings, Cylinder Liner, RTV Silicone Sealant) - OE # 215SB219E (6) Rod Bearings - OE # 62GB2396A (1) Main Bearing Set - OE # 57GC387 (1) Upper Gasket Set - OE # 57GC2178A (2) Head Gaskets - OE # 553GB51 (6) Fire Rings - OE # 553GB224  (1) Lower Gasket Set - OE # 126SB191 (Does not include crankshaft seals) PAI High Performance Engine Kits offer the following engine enhancements: For more information on our PAI High Performance Engine Kits Click Here

OEM Cross References: 215SB304B, 215SB304A, 215SB304