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Davenport Tractor manufactures parts for the antique John Deere Tractor line. Replacement parts for Two-Cylinder and New Generation tractors now becomes easier to find

Our location in the Davenport, Iowa area is perfect as a shipping location. Orders delivered to either coast of the USA are very reasonable

Our replacement Two-Cylinder parts are made and inspected in the Quad City area by retired John Deere employees that were responsible for making the original parts. You can't get any more authentic.

In the rare chance a return is necessary, our customer service department is sure to please with easy no phone call returns. There is never a restocking fee. Try that at a John Deere parts counter.


John Deere 820 Diesel Service Manual SM2021
John Deere 820 Diesel Service Manual SM2021

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This Service Manual for the John Deere Model 820 Diesel tractor (2-cylinder) is the gold standard reference for all "820 Diesel" tractor repairs.  SM2021 is a very highly detailed manual with 334 pages and was originally designed for the John Deere Dealer's Shop Mechanic. This Shop Manual is THE source for many of the "Thinker" types who are answering technical questions on the Internet and in magazines.  The pages inside SM2021 are printed on heavy sepia toned paper with "cleaned" images.  Our  Shop Manual is drilled with 5 holes to fit our binder or the original John Deere post binders.    The John Deere Service Manual is a "must have" for adjustments and routine maintenance to your 820 tractor or pony motor.  SM2021 is the shop manual reference for all of those technical "how to" questions.
Manual not supplied with reproduction binder.
Manual Contains:
Description, Operation, Specifications
tune-Up and Adjustment
Diesel Engine
Cranking Engine
Speed-Control Linkage
Electrical System
Cooling System
Diesel Engine Lubrication
Fuel System
Pulley, Clutch
Pulley Brake
Differential and Final Drive
Sheet Metal
Float-Ride Seat
Seat Cushion
Wheels and Tires
Manual Steering

SKU: DD2045
Weight: 2.07
Price: $47.00 (USD) 


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The Davenport Tractor Inc.® site is dedicated to preserving our farming heritage. We actively farm with antique John Deere Two Cylinder tractors. John Deere parts tractors have been in our collection for many years. Our mission is to provide you the highest quality reproduction John Deere Parts with reliable supplies at a reasonable cost. Davenport Tractor ® is constantly trying to help you find the rare parts for your John Deere tractor that are required to keep your antique Tractor running for years. In most cases we are the part manufacturer. We specelize in replacment John Deere parts, Antique Tractor Parts, Replacement Catalogs, A perfect reference for all of those technical "how to" questions. We have added new Parts Catalogs and Operators manuals for models Oliver, Farmall, Case, International Harvester, Ford, McCormick-Deering, and many others. We have added our automatic gasket cutter which allows us to sell separate gaskets as demand and production of our dies allows. Our new line of John Deere Tractor Owners manuals in our tool box series, formatted like the originals to be displayed in the tractor tool box, which is a great way to show off your newly restored tractor. This also tells your audience that you paid special attention to your tractor restoration details. LP-Gas fuel parts are becoming more hard to find all the time. We are producing a rebuild kit for the Century M-4 LP Converter, we have been for a few years now with great feedback. and in 2013 we are introducing a similar kit to rebuild the H LP-Gas converter found on the John Deere Waterloo Tractor line of antique Tractors. We don want to let the cat out of the bag on all of the planned Tractor Parts we have in store for this year. Closely watch Davenport Tractor website and check back often, we commit more of our income to providing new products to the tractor restoration hobby than anyone else. A great line up of new products this summer, and a new product catalog coming your way soon. As always You the customer is why we are in business. We are commited to priceing our product fairly and treating our customers with respect, and the highest quality products possable.