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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.


Radiator Cap for John Deere Pressurized Systems

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This radiator cap is for two-cylinder tractors with pressurized cooling systems like the John Deere 70, 70 Diesel, 80, 420, 430, 520, 530, 620, 630, 720, 730, 720 Diesel, 730 Diesel, 820, 830, 830 Industrial, 1010, 4000, 4020.  Our cap is authentic to the original John Deere design in every way.  The cap has raised letters stating "Open Slowly Pressurized".  Relief pressure is 5.0 PSI - same as the original.  Replaces John Deere Parts AA5757R.


SKU: DD1117
Weight: 0.50
Price: $15.00 (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.