Info I have says the original D35 (D6100) crankshaft part number is 1B9830
The original RD6 (D6600) crankshaft part number is 2B4860
Both have the same Service Part Number 7B2953 with 3-1/4" rod journals and 3-1/2" main journals.
So yes it appears they interchange but I can not guarantee that it works myself.
Our channel highlights machines from the earliest Holt and Best track-type tractors, equipment from the start of Caterpillar in 1925, up to units built in the mid-1960s.
Chapter Two
| Freshfield Farm, Sloop Lane, Scaynes Hill RH17 7NP UKChapter Two
| Avalanche adventure, Welford Rd, Sibbertoft LE16 9UJ, UKChapter Two
| Highacres Farm, Dewey Lane, Brackenfield, Derbyshire DE55 6DB, UK
Antique Caterpillar
Machinery Owners Club
1115 Madison St NE # 1117
Salem, OR 97301
Terms & Privacy
Website developed by
AdCo
"I also joined a year ago. had been on here a couple of times as a non-member and found the info very helpful so I got a one year subscription (not very expensive at all) to try it out. I really like all the resources on here so I just got a three year. I think its a very small price for what you can get out of this site."
-Jason N