5.4" Bore 7040 Piston Ring Compressor for Cummins ISX Caterpillar CAT 3400 C15
$ 85.63
Description
Application: Compatible with Cummins ISX/QSX 15, Caterpillar 3400 Series, 3406, 3408, 3412 Fitment: Fit for CATERPILLAR 3400, C15 & CUMMINS ISX Replacemen t :Alternative to PT-7040 Bore :5.4 inch bore Color : Red Material : Strong Cast Steel Function: Provide proper piston installation, reducing the possibility of broken ring. Features: 📦 Package Content: Strong Cast Steel High toughness Corrosion resistance Durability 1X Cummins 7040 Piston Ring Product Details: 5.4" Bore Superior Cast Steel Design with Connecting Rod Perfect in Workmanship How to Use: Step 1 Wipe the cylinder bores with a clean, lint free towel and apply a small amount of conventional (non-synthetic) oil to the walls, wrist pins and piston rings. Use enough to lubricate the rings as they pass through the piston ring compressor. Liberally coat the compressor with oil. No need to be dripping wet. Step 2 Rotate the crankshaft so the rod journal for the piston you’re installing is at Top Dead Center. Place the piston/ring compressor combination over the cylinder bore. Always do the following before sliding the piston into the bore: If the piston is domed, the dome should be to the outside of the block. Check that the chamfer on the connecting rod (and rod bearing) is facing the fillet radius on the crankshaft. Make sure the oil rings’ expander ring end gaps haven’t overlapped. Cover rod bolt ends with protectors to prevent crank damage during installation. Coat the connecting rod bearings with assembly lube. Step 3 It’s often possible to hand-push the piston and rod assembly into the bore, guiding the rod so that it falls in place over the crankshaft rod journal. Other times you will need to very light tap the assembly in with the handle end of a clean plastic hammer. If you need excessive force to push the piston through the ring compressor into the bore, it usually means the oil ring expander rails are overlapped. Step 4 Rotate the engine on the engine stand. Coat the bearing in the rod cap end with assembly lube and install. You can install the rod cap nuts and torque to specifications at this point, provided you’ve checked the bearing clearances. Repeat this sequence on the rest of the piston/rod assemblies.
This piston ring compressor is a must-have for Cummins ISX and Caterpillar 3400 series engines! The sturdy cast steel construction ensures durability and corrosion resistance, making installation smooth and safe. Perfect fit for 5.4" bore engines, it prevents broken rings and simplifies piston assembly. A reliable alternative to PT-7040—highly recommended for hassle-free engine maintenance!