Caterpillar Reman injector part nr. 20R1273
Unused, in unopened original Caterpillar Reman box.
No need to return cores.
New part nr.: 3920209
Old part nrs.: 3861761, 2501309, 2290203, 2042067
Old Cat Reman part nr.: 10R3258
For use with: Caterpillar model 3508B, 3512B and 3516B engines