This is a A-IK453 In Frame Engine Overhaul Kit PN: IK453Main Description As Following : A-IK453 In Frame Engine Overhaul Kit P.N: IK453 Caterpillar In-Frame Engine Overhaul Kit for T4.236 Turbocharged. 4 Cyl., Lip Seal. Bore: 3.8770??? (98.476mm). Kit contains: Piston Liner Kit, Connecting Rod Bearing Set, Connecting Rod Bolt, Connecting Rod Nut, Upper Gasket Set, and Lower Gasket Set without Seals. Fits Caterpillar models: 416, 426, and 200.4 CYL, LIP SEALBORE: 3.8770" 98.476mm Found in Section & Models : Engine Overhaul Kits > T4.236 Turbocharged, Caterpillar BACKHOE: 416 (TURBO, E-SN