4B426 or 1F3473 Exhaust Valves - What Do They Fit?

Showing 1 to 3 of 3 results

Sasquatch

Topic Author

Offline

Member

Send a private message to Sasquatch

Posts: 1,238

Thank you received: 0

I just recently stumbled across two NOS Caterpillar exhaust valves still in the original packaging plus wrapped in Cosmoline from a former US Military warehouse. They have "Valve, Exhaust 1F3473" printed on them but also have the 4B426 part number hand written on the boxes. Wondering if anybody can cross those numbers to determine what machine they fit? I'm trying not to completely unwrap them due to them being so well protected, but I'd guess they're in the neighborhood of D2 to D4 sized valves, but those numbers don't show up in any of my D2/D4 manuals. Any help would be appreciated, thanks!

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

Sat, Dec 7, 2024 2:35 AM

brian18a

Offline

Member

Send a private message to brian18a

Posts: 242

Thank you received: 0

4b0426 does not show in NPR
1F3473 is exh valve for starting engine on D4600 and D318

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

Sat, Dec 7, 2024 2:53 AM

josh

Offline

Send a private message to josh

Posts: 1,196

Thank you received: 0

Reply to brian18a:

4b0426 does not show in NPR
1F3473 is exh valve for starting engine on D4600 and D318

4B426 shows as a tube fitting.

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

Sat, Dec 7, 2024 4:07 AM

Sasquatch

Topic Author

Offline

Member

Send a private message to Sasquatch

Posts: 1,238

Thank you received: 0

Reply to josh:

4B426 shows as a tube fitting.

Thanks guys! Looks like these valves may be useful to someone that is rebuilding a pony for a D6 or #12 grader - appreciate the help.

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

Sat, Dec 7, 2024 9:12 PM

Showing 1 to 3 of 3 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.

Upcoming Events

KORUMBURRA WORKING HORSE & TRACTOR & 100 YEARS OF CAT RALLY

Chapter Nineteen

Mar 15, 2025 | 5875 STH GIPPSLAND HWY, NYORA

Booleroo 2025

Chapter Thirty

Mar 29, 2025 | Booleroo Centre, 54 Arthur St, Booleroo Centre SA 5482, Australia

CAFES 2025 TULARE, CALIFORNIA

Chapter Fifteen

Apr 11, 2025 | Tulare, California

Wheatlands Warracknabeal Easter Rally

Chapter Nineteen

Apr 19, 2025 | 34 Henty Hwy, Warracknabeal

View Calendar

Antique Caterpillar
Machinery Owners Club
1115 Madison St NE # 1117
Salem, OR 97301

[email protected]

Terms & Privacy
Website developed by AdCo

Testimonials

"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

Join Today!