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All Trucks›Freightliner FLD120 / Classic
Freightliner · Class 8 conventional tractor

Freightliner FLD120 / ClassicDetroit Series 60 12.7L/14L, Cat C15

Built 2000-2010 Engine Detroit Series 60 12.7L/14L, Cat C15 Sources checked 115 of 129 (89%)
What it is

The old-school long-nose Freightliner. Built on the Century chassis but with a traditional hood and grille. Popular with owner-operators who wanted a classic look.

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Fluids & Fill Amounts4 entriesBolt Tightness50 entriesWhen to Service12 entriesWarning Lights & Codes30 entriesHow to Fix It77 entries

The truck itself

Engine options
Detroit Series 60 12.7L or 14L, Cat C15 15.2L
Horsepower
430-515 hp
Peak torque
1,550-1,650 lb-ft
BBC
120 in
Transmission
Eaton Fuller 9/10/13/18-speed manual
Front axle
Meritor 12k-13k
Rear axle
Meritor 40k-46k tandem
Weight class
Class 8 - 40,000-46,000 lb tandem rear

Before you order anything

Options change the numbers

The FLD120 is the classic Freightliner, produced from the late 1980s through about 2010. It shares the Century Class chassis but has a traditional long-nose hood. Many remain in service as gliders or used trucks.

Printables for this truck

Shop floor
Remove & Replace Packet
77 procedures with their own torque, one per page.
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Electrical
Wiring Diagrams
33 circuits with fuse positions, pins and schematics.
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TorqueLibrary — A research compilation, not an OEM manual. Green means published and traceable; amber means second-hand, so check it. Where nothing was published the page says so rather than guessing.
Built from OEM operator manuals, federal service bulletins and industry standards (SAE, TMC, Bendix, Michelin, ConMet, Accuride). Confirm every number against the manual for your specific VIN before you turn a wrench.