Caterpillar C15 Engine Inframe-Overhaul Rebuild Kit, Piston 3569946 SDP, IPD

Fits Caterpillar C15 truck engines with serial numbers beginning with SDP. 
Will contain one piece steel piston number 3569946. C15RS1 ring set, 1807350 pin, 2502940 retainers.
Inframe Kit Includes (6) Cylinder Kits (Piston with pin & locks, Piston Rings, Cylinder Liner, Liner Seals) (6) Rod Bearings (1) Main Bearing Set (1) Upper Gasket Set (Does not include Injector O-Rings) (1) Oil Pan Gasket - See note below regarding Oil Pan Gasket
Overhaul Kit Includes (6) Cylinder Kits (Piston with pin & locks, Piston Rings, Cylinder Liner, Liner Seals) (6) Rod Bearings (1) Main Bearing Set (1) Upper Gasket Set (Does not include Injector O-Rings) (1) Lower Gasket Set (1) Front Crankshaft Seal (1) Rear Crankshaft Seal
Please Note: Some Caterpillar C15 engines use an "Isolation Seal" for the underframe stiffener plate. (Manufacturer Part number 168-5248) This item is not included with our kits, as Caterpillar suggests reusing this gasket up to 3 times before replacement. Please inspect your isolation seal. If you require a replacement, it will need to be ordered separately.
Approximately 7 liner and o-ring changes for 3400 series Caterpillar engines between 1982 and 1998 led IPD and our customers to work on ways to extend the life of the bottom o-rings on these engines. Our suspicion was that the o-ring failures in most cases were due to excessive liner movement.
Thus the IPD Crevice-seal style cylinder liner was developed to help reduce that movement by utilizing the tapered crevice seal. This has been sold  successfully by IPD for over a decade. Don't be fooled by imitations! Only the IPD 'CS' liner offers all the features mentioned below and is backed by IPD's  comprehensive warranty.