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part number questions

part number questions

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Catboy1
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Hello All,

there is a guy selling some antique parts and I'm not sure what they are for. Could someone on here please help me figure out what they fit?

They are:

1h5650

7b2074

2a4434

6b5653

and 2b7453

Thank you in advance,

Robyn

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Tue, Feb 17, 2026 3:43 AM
brian18a
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1H5650 casting number, rod assembly 1H5649 connecting rod starting engine D17000 engine

7B2074 gear starting engine electric start D311 engine

2A4434 crankcase D17000 serial no. 5E9001-5E5009

6B5653 belt starting engine electric start D311

2B7453 pin starting engine clutch and pinion Many applications from D2 to D8

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Tue, Feb 17, 2026 4:14 AM
Catboy1
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Thank you!!!

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Tue, Feb 17, 2026 4:24 PM
Ccafer
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Location: Rochester. NY
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Catboy1

Did you purchase the "7B2074 gear starting engine electric start D311 engine"?

I've done my best to recondition a worn gear of the same part number and saw this. Thanks, Chris

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Thu, Feb 19, 2026 10:03 PM
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