Sea Ray

RAV · ‎04-30-2021

Questions on servicing 05 420DA.

How much coolant is needed for the Cummins 6cta 450c engine when fluid and filters are replaced?

Any recommended sources for supplies of engine and transmission zincs? 1/2" NPT /w 5/8 diameter zinc pencil

What is the brass o-ring size for the filter / screen on the Hurth transmissions?

Thanks for any help with these items.

RAV · ‎05-02-2021

Just an update to my original post.
replacement of coolant requires ~40 litres of 50/50 EG;
NPT zincs standard size purchased at any marine supply;
Hurth transmission filter/screen requires 36mm socket or wrench; still unsure of brass compression washer size. Would like to have new ones on hand for screen cleaning and transmission oil replacement.

CCH · ‎05-09-2021

If you go to the Cummins site, and then the documents section you can enter your engine serno and it will give you access to all the manuals and documents related. You have to register, no cost. It can be a little confusing at first, but you will have access to everything Cummins has related to maintenance and parts. You can even call and talk to a rep.

RAV · ‎05-09-2021

Thanks CCH. Went through the process will little effort. Manuals are for sale but not outragous. Worth having.

Captain_Mark · ‎05-23-2021

https://www.boatzincs.com/cummins.html

Sea Ray

Questions on servicing 05 420DA. How...