H carb DC or DB

TuckerMac · Jan 31, 2012

I replaced the carb om my 1948 H because the old throttle body was broken. My old carb was a 50981-DB the new one is a 50981-DC. They look slightly different inside. I had to cut a place to enlarge the vent on the DC. I think it had been resurfaced which left no relief for the vent. I am curious about the difference.

Nebraska Cowman · Jan 31, 2012

D would have been the original part number suffix.DB and DC would be later revisions. My 1953 parts book shows only the DC number.

rustyfarmall · Jan 31, 2012

(quoted from post at 06:32:02 01/31/12) I replaced the carb om my 1948 H because the old throttle body was broken. My old carb was a 50981-DB the new one is a 50981-DC. They look slightly different inside. I had to cut a place to enlarge the vent on the DC. I think it had been resurfaced which left no relief for the vent. I am curious about the difference.

The DC is the later version of the DB, and all upgrades are backwards compatible. You should not have needed to make any modifications.

CNKS · Jan 31, 2012

Rusty is correct, sounds like yours has been modified.

H carb DC or DB

TuckerMac

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Nebraska Cowman

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rustyfarmall

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CNKS

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