IHC Light Line Model Numbers
It has long been my desire to get a single listing of various IH light line model numbers and what they mean published, so here it is.
With a little (lot) help from our friends: Howard Pletcher, Bennett Moe, and Crismon’s.
And a little note about Crismon’s book. Even though it was taken out of print, a few years or so ago, there is a newer version available again. Please check with http://binderbooks.com
This listing is under constant updating, so please bear with us.
The letter identified the model year or years of a particular version, the number the size of the truck.
11/23/2010
Note: In the “Standard Catalog of Light-Duty Trucks” on Page 493, there are notes that there sub-model numbers for some of the K- series trucks. (K-2L, K2-H, etc.) Â This has been verified as not being correct. Â The weights as shown in the book should also be verified with IH Literature.
The High Wheelers…
Auto Buggy, 1906-1911
Auto Wagon A, 1909-1912
Auto Wagon B, 1909-1910
Auto Wagon AA, 1912-1916
Auto Wagon AW, 1912-1915
Auto Wagon AAX, 1912-1916
Auto Wagon AWX, 1912-1914
Auto Wagon MA, 1912-1916
Auto Wagon MW, 1912-1916
Auto Wagon MAX, 1912-1916
Auto Wagon MWX, 1912-1916
Auto Wagon E, 1915-1916
Auto Wagon EX, 1915-1916
F, 1915-1923, 1 ton
H, 1916-1923, 3/4 ton
K, 1916-1923 , 1-1/2 ton
G, 1917-1923, 2 ton
L, 1920-1923, 3-1/2 ton
S, 1921-1926, 2 ton
21, 1921-1923, 3/4 ton
31, 1921-1923, 1 ton
41, 1921-1923, 1-1/2 ton
61, 1921-1923, 2 ton
101, 1922-1923, 3-1/2 ton
Speed Sedan, 1923-
Special Delivery, 1921-1924, 2 ton
SD, 1924-1927, 2 ton
SL, 1924-1924, 2 ton
33, 1924- , 1-1/2 ton
43, 1924- , 2 ton
63, 1924- , 3 ton
94, 1924- , 4-1/2 ton
103, 1924- , 5 ton
Salesman’s Coupe, 1927-
54, 1927- , 2-1/2 ton
74, 1927- , 3-1/2 ton
SL-34, 1927- , 1-1/2 ton
SL-36, 1927- , 1-1/2 ton
Note: on the K and KB series trucks, if your data plate shows KS or KBS the S indicates a two speed rear axle.
K-1, 1941-46, 1/2 ton
K-2, 1941-46, 3/4 ton
K-3, 1941-46, 1 ton
K-4, 1941-46, 1-1/2 ton
K-5, 1941-46, 2 ton
K-6, 1941-46, 3 ton
KB-1, 1947-1949, 1/2 ton
KB-2, 1947-1949, 3/4 ton
KB-3, 1947-1949, 1 ton, 
KB-5, 1947-1949, 1-1/2 to 2 ton, 
KB-6, 1947-1949, 3 ton
L-110, 1949-53, 1/2 ton, 4,200# GVW
L-111, 1949-52, 1/2 ton, 4,800# GVW
L-112, 1949-52, 1/2 ton, 5,400# GVW
L-120, 1949-52, 3/4 ton, 5,300# GVW
L-122, 1951-52, 3/4 ton, 6,500# GVW
L-130, 1949-52, 1 ton
L-132, 1949-52
LB-140, 1950-52, 1-1/4 ton, 9,000# GVW
L-150, 1949-52, 1-1/2 ton
L-160, 1952-52, 2 ton, 14,000# GVW
L-161, 1952-52, 2 ton, 15,000# GVW
L-162, 1952-52, 2 ton, 16,000# GVW
L-163, 1952-52, School bus
L-164, 1952-52, 2 ton, 17,000# GVW
L-165, 1952-52, 2 ton, 16,000# GVW, road tractor
L-166, 1952-52, fire truck
R-100, 1954-55, 1/2 ton, short box, step side
R-110, 1953-55, 1/2 ton, long box, step side
R-112, 1953-55
R-120, 1953-55, 3/4 ton
R-130, 1953-55, 1 ton
R-132, 1953-55
R-140, 1953-55, 1-1/4 ton
R-150, 1953-55, 1-1/2 ton
R-151, 1954-55, 1-1/2 ton, 10,750# GVW
R-153, 1954-55, school bus
R-154,
R-160, 1953-55, 2 ton, 14,000# GVW
R-161, 1953-55, 2 ton, 15,000# GVW
R-162, 1953-55, 2 ton, 16,000# GVW
R-163, 1953-55, School bus
R-164, 1953-55, 2 ton, 17,000# GVW
R-165, 1953-55, 2 ton, 16,000# GVW, road tractor
R-166, 1953-55, fire truck
S-100, 1955-56, 1/2 ton, short box, step side
S-110, 1955-56, 1/2 ton, long box,. step side
S-112, 1955-56
S-120, 1955-56, 3/4 ton
S-130, 1955-56, 1 ton
S-140, 1955-56, 1-1/4 ton
S-150, 1955-56, 1-1/2 ton
S-160, 1955-56, 2 ton, 14,000# GVW
S-161, 1955-56, 2 ton, 15,000# GVW
S-162, 1955-56, 2 ton, 16,000# GVW
S-163, 1955-56, School bus
S-164, 1955-56, 2 ton, 17,000# GVW
S-165, 1955-56, 2 ton, 16,000# GVW, road tractor
S-166, 1955-56, fire truck
After going through most of the letters from A to S between 1930 and 1956, the series started over with A for the 1957 Golden Anniversary
models and went as follows until the end:
A-100, 1957, 1/2 ton, Golden Jubilee Edition
A-110, 1957-58, 1/2 ton
A-120, 1957-58, 3/4 ton
A-130, 1957-58, 1 ton
A-140, 1957-58, 1-1/4 ton
A-150, 1957-58, 1-1/2 ton
B-110, 1959-60
C-110–1961-62
C-1000–1963-64
D-1000–1965
1000A–1966
1000B-1967
1000C-1968
1000D-1969-70
1010-1971-73
100-1974-75
When IFS was introduced in 1961, it was designated a 100 model to distinguish it from the 110 model to distinguish it from the 110 model
with the I-Beam axle rather than being intended as a light and heavy model situation. Early IFS’s did have a slightly lighter rating so
the 100 was lighter than a 110, but in later years, the 1000′s and 1100′s had exactly the same weight ratings.
In 1963, all model designations were multiplied by 10 to get the models 1000 through 1500. In 1971, the 10 was added giving models 1010
through 1510. Initially it was 1010A, but the A was soon dropped.
Finally, in 1974, the model designations changed to 100 for the 1/2 Ton, 200 for the 3/4 Ton, which could be optioned up to the 1 Ton
rating so there was no 300, and 500 for the “1 1/2 Ton” which really had a GVW of 13,000 to 15000# –much above 1 1/2 tons. (The 140 series
had disappeared in the early 1960′s.)
The Scout:
Model 80, 1960-1964
Model 800, 1965-1969
Model 800A, 1969-1970
Model 800B, 1971
Scout II, 1971-1980
PDF 
I see some dicrepancies in the early trucks, I will be glad to help whomever with corrections.
I’m confused ,my 1956 truck has badging on it that says S-100 it’s a long bed truck with a BD240 engine. the post says my truck should have badging that says S-110 because of the long bed. What is correct
Bear,
Check your data tag under the hood to verify the model number. The chrome ones on the exterior are interchangeable. It could be that yours was changed at one point in the trucks life.
jim
I’m confused. I have a 1953 R-110 truck that has the ID door tag as a R-112. Do I go by the door tag or the outside chrome badging? It is a long bed and has a weight of 5400 lbs on the inside door tag. Which one is right?
You have an R-112. In the early 1950s, IH operated on the theory that the more models you had, the better. There was an ad at the time claiming 975 models or whatever. This was achieved by giving minor variations in a basic model an new number. The basic model was the R-110. An upgrade in the GVW of a couple hundred pounds made it an R-111. Another upgrade and it became your R-112. These upgrades didn’t warrant the cost of tooling new logos, so there was not a R-112 logo to go with it.
IH spent the next 25 years trying to undo the proliferation of models and the costs that went along with it.
Howard