July–August 2019

May–June 2019
January 22, 2020
September–October 2019
January 24, 2020


2 The 5010, 5020, and 6030 Series Tractors Decoded
Digging Into The Serial Number Registers
22 Commentary
30 Tractor Shipment Records — Two-Cylinder Era
38 Perspectives
Creating Comfort — Air Conditioning for a Vintage Cab — by Dan Resh
Tractor Talk Shrunken Down — The 1939–1940 Model “B” and “BW” Tractors — by Doug Beaty

Regional Two-Cylinder Ambassador Program
John Deere Day Movies on DVD!
John Deere 1:16 Scale Toy Replicas and Merchandise
Products • Services • Suppliers
Classified Ads


The 5010-I Wheel Tractor, in the form of the 5010 Scraper setup, took the place of the two-cylinder “840” Tractor with either a Hancock or John Deere 400 Scraper. More compact and quicker than some huge industrial scrapers on the market, it made for very profitable production on many types of jobs. Without the scraper, the 5010-I Tractor usually pulled compactors or water wagons. The offset (side-seat) configuration provided for excellent maneuverability.

Two-Cylinder (ISSN 0899-2258) is the official publication for members of the Two-Cylinder Club®, and is available to anyone interested in the preservation of John Deere Tractors and related products.

The Two-Cylinder Club was chartered in Iowa in 1985 as a nonprofit service, educational, and recreational organization; and extends an invitation of membership to individuals interested in the preservation of John Deere Tractors and Implements and their important role in our agricultural heritage.

Two-Cylinder magazine is published bimonthly by Two-Cylinder, Ltd., 618 G Avenue, Grundy Center, IA 50638. Periodicals postage paid at Grundy Center, Iowa, and additional mailing offices. Annual (non-refundable) subscription rates, which include membership in the Two-Cylinder Club, are: $40.00 U.S., $56.95* Canada, and $94.95* to all other foreign countries (*U.S. funds). Single issue price: $10. Send all subscriptions and inquiries to P.O. Box

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Grundy Center, IA 50638-0430
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The information presented in Two-Cylinder is the result of considerable time and effort on the part of many dedicated individuals. However, it is recognized that the potential for error always exists, and this publication is no exception. Therefore, the publisher does not warrant or guarantee the information contained herein to be absolutely accurate, and accordingly, the publisher shall not be liable in regard to the use or reliance placed upon this information.

The images presented in Two-Cylinder are the property of several entities including Deere & Company, the Two- Cylinder Club, and private individuals. Each of the originating entities retains copyright of their photographs, materials, and documents.

No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system, without permission in writing from the Publisher. Two-Cylinder magazine is subject to change in overall size, volume, content, and publishing/mailing schedule at discretion of the publisher.

Copyright © 2019
Two-Cylinder Ltd.
Volume 32 • Number 4

All rights reserved.

Editorial Director
Jack Cherry
Publication Manager
Brenda Harrenstein
Membership Services
Gretchen Madden
Membership Services
Elyse Cherry
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