Terry,
You're right that is pretty close. Cummins beige is nice because you can also easily get it in rattle cans or quarts if you want to spray it from a gun.
KBS Coatings Lists it here:
https://www.kbs-coatings.com/engine-paint.html
Maybe on the weekend I'll get a chance to compare the front grill color to the remaining paint on my transmission.
Kirk