Clinton Engine Serial Numbers

SCOTT ATWATER
1946
461....3.6 HP
467....3.6 HP
1947
470....3.6 HP
471....3.6 HP
473....7.5 HP
1948
480....3.6 HP
481....3.6 HP
483....7.5 HP
1949
480....3.6 HP
481....3.6 HP
491....4 HP shift
4971....5 HP shift
483....7.5 HP
493....7.5 HP shift
1950
1-12 500 series....3.6 HP
1-14 501 series....4 HP
1-16 507 series....5 HP
1-20 503 series....7.5 HP
1-30 509 series....16 HP
1951
1-12 510 series....3.6 HP
1-14 511 series....4 HP
1-16 517 series....5 HP
1-20 513 series....7.5 HP
1-25 518 series....10 HP
1-30 519 series....16 HP
1952
1-12 30251001....3.6 HP
1-16 37251001....5 HP
1-20 33251001....7.5 HP
1-25 38251001....10 HP
1-30 39251001....16 HP
1953
3-6 30351001....3.6 HP
5 37351001....5 HP
7.5 33351001....7.5 HP Gold Pennant
10 38351001....10 HP gold Pennant
16 39351001....16 HP
1954
Super Single 30451001....3.6 HP
5 Bail a matic 37451001....5 HP
7.5 Bail a matic 33451001....7.5 HP
10 Bail a matic 38451001....10 HP
16 Bail a matic 39451001....16 HP
1955
3.6 30551001....3.6 HP
5 Bail a matic 37551001....5 HP
7.5 Bail a matic 33551001....7.5 HP
10 Bail a matic 38551001....10 HP
16 Bail a matic 39551001....16 HP
30 Bail a matic 36551001....30 HP
1956
Sportster 30651001....3.6 HP
5 Bail a matic 37651001....5 HP
7.5 Bail a matic 33651001....7.5 HP
10 Bail a matic 38651001....10 HP
16 Bail a matic 39651001....16 HP
33 Bail a matic 36651001....33 HP
33 Elec Bail a matic 3665-3-1001....33 HP
1957
3075 30751001....3.6 HP
3775 37751001....5 HP
3375 37751001....7.5 HP
3875 38751001....10 HP
3975 39751001....16 HP
3975-3 3975-3-1001....16 HP elec
3675 36751001....40 HP
3675-3 3675-3-1001....40 HP elec
3675-5 3675-5-1001....40 HP elec
For later models see Mcculloch.

Clinton engine models: models 300,300-350,A-300,VS-300,500: models 650,700,B-700,500, models 760,B-790,C-700,VS-700,800: models 860,890,A-800,A-860,A-890. Jun 10, 2017 - 2nd video on this old Clinton engine i re-stored.

The Model A was produced in College Park, Md. in 1954. Model A tractors will have a serial number stamped on the right side of the frame rail just aft of where it slides in to the front casting. As far as we can tell, approximately 350 tractors were produced in College Park, of which we have documented less than 50 to still exist. Copar was not good at keeping records, and most likely did not build the tractors in sequence. The serial number on the frame rail will be 3 digits and most likely less in value than 350.

Clinton Engine Serial Numbers

Clinton Engine Serial Numbers

Model A Panzers were all red, powered by an 8 1/2 hp Model 23 Briggs & Stratton engine and had cast iron pulleys on both the engine and jack shaft. The jack shaft had the location 'College Park, Md.' and 'Mod A.' cast in to it, where later models had Laurel, Md. Advertising literature shows it had 6x16' tires on the rear, although at least one confirmed original Model A has 8x16' tires on it.

Serial

Because they were made of cast iron and succeptable to cracking, the jack shaft casting and pulleys may not be a reliable way to identify a Model A. I have a Model A with a cast iron engine pulley and serial number stamped in the frame, but because the tractor was used extensively for mowing, it has a replacement jack shaft casting and a large pulley made of aluminum. The rims had been repainted with yellow paint and had 8x16' turf tires on it. However, when I took the tires off the rims, it was clear the original rim color was red.

  1. Re: 7hp clinton engine type 6027270 r serial number 59143 Most Clintons model numbers begin with a J or a K followed by 1 to 3 digits. Early model1957 up Have numbers like J5,J7,J8,J9.
  2. This is the complete parts catalog for the Clinton 100 Series engine. This parts book contains exploded parts views and product codes for every component of the engine. An absolute must if you are rebuilding, taking apart, or purchasing a part for your Clinton engine.Covers All Years and Serial Numbers - Other websites.

When production switched to Laurel, Md. in early 1955, the company began referring to them as a Model T102. Because of existing stock and repair parts, newer models of 3 and even 4 wheel Copar Panzers can have a jack shaft casting that says College Park. Jim Haynes (Dandy Sales) and I have had a lot of debates, and have agreed that only tractors produced in College Park should be called Model A. All others were built in Laurel and are called by their T100 or T200 model designations.

Clinton Engine Serial Numbers

For example, I have a 3 wheel Copar Panzer that looks exactly like a Model A. It has a serial number of 1947 stamped into the frame, but it is to the right of the tool box and not on the frame rail. It also has an aluminum engine pulley. Even though it says Mod A on the jack shaft housing, it also says Laurel, Md. Because of this, it is a T102 and not a Model A.

If you want to identify your engine, there is a great source of serial numbers for Model 23 and 23A B&S engines online at http://www.asecc.com/data/briggs/data4.html

I've added a picture of the info from that page below. Click on the thumbnail to view.

Clinton motor serial numbers

Clinton Engine Serial Numbers Diagram

Updated September 21, 2014

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