Ford 8N

What Year Is My 8N?

Short answer first: find the number stamped on the left side of the engine block, below the head and behind the oil filter, then match it against this table. The 8N was built from July 1947 to 1952, and every year's range is published and agreed by three independent sources.

Model year	Serial numbers
1947	8N1 – 8N37907
1948	8N37908 – 8N141369
1949	8N141370 – 8N245636
1950	8N245637 – 8N343592
1951	8N343593 – 8N442034
1952	8N442035 – 8N524076

A worked example

Serial 8N477937: it sits above 442035 (first of 1952) and below 524076 (the last 8N built), so it is a 1952 — in fact a late one. That is the whole method: your number is the year whose range contains it. Our Ford decoder does the matching and shows the bracket.

Three traps that misdate 8Ns

The model is named for 1948, but production began in July 1947. A low 8N number is a 1947 tractor, full stop.
The number dates the engine, not the whole tractor. Ford stamped it after the engine passed inspection, and engines got swapped for seventy years. Cross-check with casting dates: they should run a month or more older than the serial's year.
The distributor moved. Front-mounted distributors up to roughly serial 263844 (partway through 1950), side-mounted after. A "1952" with a front distributor deserves hard questions.

Reading the stamp itself: before 1951 the number is bracketed by star marks, from 1951 by diamonds, and Ford's stamps used a letter I for the digit 1. Shallow, uneven digits are normal — each one was a separate hammer blow.

The $39 Buyer's Check Kit

The decoder gives you the year. The kit gives you the rest of the check before money changes hands: serial-verification worksheets, the two-numbers check that catches swapped engines, year-split parts traps, and an inspection checklist for each family.

Included in the $39 Buyer's Check Kit

See what's inside