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Mack Model Designations


curioustom

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Hello!

New to forum but have visited often. Longtime Mack fan with some basic questions.

What do the model names mean? For example B61, B81SX etc...

I am very partial to Superliners and LTLs. Have seen numerous pictures of B81 SXs, or anything with the flat "gravel pit" fenders. Any info will be absorbed like a sponge, you guys have so much knowlege!

Are there any publications availabe with this sort of info?

what model is this in the attachment? (if I did it right)

Thanks in advance!

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Hello and welcome to BMT! Glad you joined up! Here is some info I grabbed from www.oldmacksRus.com

Chassis Versions

What do all the letters mean?

These are the basic letters used

B - school bus chassis

C - flat face cowl for the addition of a delivery body

E - built for export

F - fire truck chassis

L - light weight or weight reduced by using aluminum components

P - platform chassis (single axle straight truck)

R - right hand drive. This designation was started in 1964 but right hand drive available

prior as option.

S - six wheel chassis (tandem axle)

T - tractor chassis

X - severe or extreme service chassis

Combine any of the basic letters to get a different chassis

PC - flat face cowl platform chassis

LST - light weight six wheel tractor chassis

SX - six wheel extreme service chassis

STE - six wheel tractor chassis for export

RX - right hand drive extreme service chassis

These are some odd versions

BD - school bus - no idea what the D means. Little more than 100 built 1955-1956

EWX - don’t have a clue on the letters but the picture shows a mean looking B83

built in 1965 with 3 drive axles

SX-C - six wheel extreme service chassis, may have been built in Canada

SX-M - six wheel extreme service chassis, no idea what M stands for

T-HS - tractor, don’t know about HS

T-M - tractor, don’t know about M

TPB - tractor piggy back

Now the fire truck combinations! The good guys at the Mack Museum and Harvey

Eckart had to do some “head scratchin” on these

CF - fire truck with Chrysler Corp. drive train

FA - aerial ladder fire truck

FC - fire truck chassis without fire body. This designation started in 1965

FCD - fire truck chassis with diesel engine without fire body

FD - fire truck with diesel engine. This designation started in 1964

FMD - don’t have a clue. Only built in 1963

FSW - six wheel (tandem axle) fire truck. This designation started in 1958 for fire trucks

but had been used in trucks prior to the B model series.

FT - fire truck tractor. This designation started in 1965 but fire truck tractors were also

built before this date.

Hope this helps!

bmodel_logo.png
Barry - Watt's Truck Center Parts Manager and BMT Webmaster...1-888-304-MACK

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