VALVE GROUP 4T2501 - Caterpillar

Remanufactured connecting rod assembly part numbers are located on the end of the cap. Refer to the remanufactured part number in Table 1 when utilizing remanufactured C13 Cylinder Packs and Connecting Rods.
Table 2
Reman Connecting Rod Assemblies Not Permitted to Mix    
(1) 10R-7989 is not weight matched and cannot be used with:     (2) 20R-0486    
(3) 10R-2789
(4) 10R-4300 Remanufactured part numbers 20R-0486 (2), 10R-2789 (3), and 10R-4300 (4) are compatible in mass, and are interchangeable.Refer to the remanufactured part number on the end cap to ensure that all six connecting rods are weight matched.Required Parts for KCB1-31547 Truck Engines
Table 3
Part Number     Description    
(1) 10R-7989     Connecting Rod    
(1) Use this part number, if less than 6 of the connecting rods need to be replaced.    
(2) 10R-7988     Cylinder Pack As    
(2) Use this part number if less than 6 of the cylinder packs need to be replaced.    
(3) 10R-2789     Connecting Rod    
(3 ) Use this part number if all connecting rods need to be replaced.    
(4) 10R-6214     Cylinder Pack As    
(4) Use this part number if all connecting rods need to be replaced.     (S/N: KCB1-31547) C13 Truck engines were built with 160-8229 00-04 connecting rods and are ~200 g heavier than later designed 160-8229 05-06 and 223-9150 connecting rods. These engines require 10R-7989 (160-8229 00-04) connecting rods or 10R-7988 cylinder packs when three or less cylinders are being replaced. When three or more cylinders are being replaced, use 10R-2789 (160-8229 05-06 and 223-9150) connecting rods or 10R-6214 cylinder packs. Refer to Table 3.Connecting Rods in C13 Cylinder Packs
Table 4
Cylinder Pack P/N     Use Reman Connecting Rod P/N    
10R-7988     10R-7989    
10R-6214     10R-2789, 10R-4300, 20R-0486    
10R-6014     10R-2789, 10R-4300, 20R-0486    
10R-9609     10R-2789, 10R-4300, 20R-0486    Cylinder packs 10R-6214, 10R-6014, and 10R-9609 may be assembled with 10R-2789 (160-8229 05-06), 10R-4300 (223-9150) or 20R-0486 (Weight reduced 160-8229 00-04). Combinations of these connecting rods are acceptable due to similarities in weight. Cylinder pack 10R-7988 is only assembled with 10R-7989 (160-8229 00-04) and is only to be used on engines with 160-8229 00-04 connecting rods. Refer to Table 4.Whenever questions arise about this Special Instruction, contact the local Caterpillar dealership for the latest information. Procedure to Replace the Connecting Rods
Illustration 2 g02672396
Remove the pistons and the connecting rods from the cylinders. Refer to