Diesel Fifty pony plugs

Showing 1 to 1 of 1 results

maximan

Topic Author

Offline

Send a private message to maximan

Posts: 8

Thank you received: 0

I am in need of spark plugs for the starting engine of my diesel fifty. Does anyone have a good current brand and number for these? Also, does the fifty share the same rails and sprockets as the rd7? Thanks

Please log in or create an account to join the conversation.

Sat, Apr 7, 2007 7:44 AM

Old Magnet

Offline

Send a private message to Old Magnet

Posts: 16,695

Thank you received: 17

The NGK -A6 plug is a good replacement for all the old 18mm pony motor spark plugs.
I don't have direct interchange information for the "50" and "RD7" but I can tell you they used the same pitch (8 in.) sprocket and had the same rail height (4-3/8 in.). I suspect they are the same but I can't tell you for sure😉 😉

Correction....that's 8 in. pitch not the 8-1/2in I stated.

Please log in or create an account to join the conversation.

Sat, Apr 7, 2007 8:23 AM

Showing 1 to 1 of 1 results

Follow Us on Social Media

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.