Welcome! Please use the navigational links on your left to explore our website.

Company Logo Shop Now
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 
Marketplace
Classified Ads
Photo Ads
Tractor Parts

Community
Discussion Forums
Project Journals
Tractor Town
Your Stories
Show & Pull Guide
Events Calendar
Hauling Schedule

Galleries
Tractor Photos
Implement Photos
Vintage Photos
Help Identify
Parts & Pieces
Stuck & Troubled
Vintage Ads
Community Album
Photo Ad Archives

Research & Info
Articles
Tractor Registry
Tip of the Day
Safety Cartoons
Tractor Values
Serial Numbers
Tune-Up Guide
Paint Codes
List Prices
Production Nbrs
Tune-Up Specs
Torque Values
3-Point Specs
Glossary

Miscellaneous
Tractor Games
Just For Kids
Virtual Show
Museum Guide
Memorial Page
Feedback Form

Yesterday's Tractors Facebook Page

Related Sites
Tractor Shed
TractorLinks.com
Ford 8N/9N Club
Today's Tractors
Garden Tractors
Kountry Life
  
Crawlers, Dozers, Loaders & Backhoes Discussion Forum

Caterpillar D7 3T

Welcome Guest, Log in or Register
Author  [Modern View]
Bookman

02-10-2019 11:39:41




Report to Moderator

What is the horsepower of a Caterpillar D7 3T such as the army used in the late 1940s. Not finding it anywhere on the Internet. Thanks




[Log in to Reply]   [No Email]
Bookman

02-12-2019 09:14:11




Report to Moderator
 Re: Caterpillar D7 3T in reply to Bookman, 02-10-2019 11:39:41  
Quoting Removed, click Modern View to see

Probably more than a few still around. Is this one with all the cables?



[Log in to Reply]  [No Email]
sms

02-12-2019 03:33:08




Report to Moderator
 Re: Caterpillar D7 3T in reply to Bookman, 02-10-2019 11:39:41  
I have a 1948 with a Laplant-Choat hydraulic blade.



[Log in to Reply]  [No Email]
d7fever

02-11-2019 03:48:07




Report to Moderator
 Re: Caterpillar D7 3T in reply to Bookman, 02-10-2019 11:39:41  
3T was the civilian model, 4T was the military model. So if the military was using D7's to move snow, they were using 4T models. Actually no difference except the 3 or the 4. Probably had a cable blade where the cable went overhead, and used a LeTourneau winch, or if the cable went alongside the tractor in a pipe, they used a Caterpillar winch. The blades could be either Caterpillar or American Car and Locomotive.

[Log in to Reply]  [No Email]
bookman

02-11-2019 11:09:16




Report to Moderator
 Re: Caterpillar D7 3T in reply to d7fever, 02-11-2019 03:48:07  
Thanks for the good information. I knew this site would come through.



[Log in to Reply]  [No Email]
Billy NY

02-11-2019 04:20:55




Report to Moderator
 Re: Caterpillar D7 3T in reply to d7fever, 02-11-2019 03:48:07  
LeTourneau called their cable control a Power Control Unit, (PCU)Caterpillar did not start making these cable controls and blades until after the war, they called theirs Cable Control Units, (CCU) American Car & Foundry in Berwick PA made the dozer kit blades, and I am unsure as to whether they built the tractors as well under license to Caterpillar, I have one their blades,. LeTourneau made knock down dozer kits AC&F made ones that were not knock down.

[Log in to Reply]  [No Email]
Billy NY

02-11-2019 04:00:45




Report to Moderator
 Re: Caterpillar D7 3T in reply to d7fever, 02-11-2019 03:48:07  
Slight difference, 4T's did have higher gear ratios in the transmission, ground speed was faster.



[Log in to Reply]  [No Email]
Billy NY

02-10-2019 18:47:58




Report to Moderator
 Re: Caterpillar D7 3T in reply to Bookman, 02-10-2019 11:39:41  
Military Technical manual states 70-90 DBHP for a 7M & 4T, which was a government purchase order, some 3T's were used as well, but not all went to the war effort. They built 3T's until 1955. Last couple of years they came with an oil bath clutch, very reliable tractors.



[Log in to Reply]  [No Email]
bookman

02-11-2019 11:10:08




Report to Moderator
 Re: Caterpillar D7 3T in reply to Billy NY, 02-10-2019 18:47:58  
Thanks again for the good information. I knew this site would come through.



[Log in to Reply]  [No Email]
Larry Hardesty

02-10-2019 13:02:23




Report to Moderator
 Re: Caterpillar D7 3T in reply to Bookman, 02-10-2019 11:39:41  
Quoting Removed, click Modern View to see

Thanks very much. I am researching a story on the army crawlers coming through western Nebraska during the blizzards of 1949 to dig out ranchers. I think these were the crawlers the army used during that period.



[Log in to Reply]  [No Email]
hector gemme

02-10-2019 12:54:58




Report to Moderator
 Re: Caterpillar D7 3T in reply to Bookman, 02-10-2019 11:39:41  
The D7-3T should have 100 horsepower



[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


TRACTOR PARTS TRACTOR MANUALS
Fast Shipping!  Most of our stocked parts ship within 24 hours (M-Th). Expedited shipping available, just call! Most prices for parts and manuals are below our competitors. Compare our super low shipping rates! We have the parts you need to repair your tractor. We are a company you can trust and have generous return policies. Shop Online Today or call our friendly sales staff toll free (800) 853-2651. [ About Us ]

Home  |  Forums


Copyright © 1997-2018 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy