119 and 127 BBC choices
The brochure identifies both hood lengths and multiple detachable Unibilt sleeper configurations. This edition is not a production-year timeline.
Peterbilt 379 factory brochure · PETE-01458 · September 2001 · archived copy ↗
THE ARCHIVED HIGHWAY FILE
Peterbilt
379 family
Compare standard and extended hood references while keeping Unibilt sleeper choices and individual build limits separate.
01 / FIND YOUR REFERENCE
Choose a reference edition
Start with the model configuration, then choose a publication and explore its documented equipment.
Catalogue reference
Selecting equipment records your research choice. It does not calculate dimensions, establish an available combination or rate a truck.
About this edition & its evidence
PETE-01458 · 9/01. September 2001 catalogue options across the 379 family. Hood, engine, transmission, axle and sleeper compatibility must be confirmed from the original order.
Peterbilt 379 factory brochure · PETE-01458 · September 2001 · archived copy ↗
DIMENSION GUIDE / A–H
Precision visual reference
Select a measurement to highlight its endpoints and see what the chosen publication confirms.
Peterbilt 379 · 379 127 BBC · September 2001 factory brochure · 1 published / 7 to verify
Published value Needs verificationSchematic · not to scale
A / SIDE VIEW
Bumper to back of cab (BBC)
Front bumper to the back of the driving cab. Excludes an additional sleeper; it is not overall tractor length.
127 in3,226 mm
Published for this reference; confirm the individual build.
Nominal hood/BBC designation. Small drawing values are not substituted without confirmed endpoints.
Original illustrative views; not to scale, a certified drawing or a selected-build rendering. Endpoints explain the measurements. Published values come from the cited reference, never from the image.
Selected reference: Peterbilt 379 factory brochure · PETE-01458 · September 2001 · archived copy. Published values remain tied to this edition.
View the complete dimension table ↓02 / THE MEASUREMENTS
Published dimensions
379 127 BBC · September 2001 factory brochure
| Measurement | Reference value | Scope / how to verify |
|---|---|---|
| Bumper to back of cab (BBC) | 127 in3,226 mm | Nominal hood/BBC designation. Small drawing values are not substituted without confirmed endpoints.Peterbilt 379 factory brochure · PETE-01458 · September 2001 · archived copy ↗ |
7 dimensions still to verify · build record / measurement
| Measurement | Reference value | Scope / how to verify |
|---|---|---|
| Wheelbase | Not verified | Build record / measurement required. |
| Overall tractor length | Not verified | Build record / measurement required. |
| Overall height | Not verified | Build record / measurement required. |
| Cab / body exterior width | Not verified | Build record / measurement required. |
| Width across mirrors | Not verified | Build record / measurement required. |
| Fifth-wheel height | Not verified | Build record / measurement required. |
| Bumper to front axle (BA) | Not verified | Build record / measurement required. |
Planning to transport the truck?
Measure fixed exterior width and mirror width separately, plus overall length, the highest accessory, fifth-wheel height and actual transport weight. Interior bunk width is not exterior width.
03 / UNDER THE SKIN
Powertrain & chassis
Caterpillar C10 · Caterpillar C12 · Caterpillar C15 / C16 · Cummins ISM · Cummins N14 · Cummins ISX. Verify the original chassis order and subsequent alterations. Read engine, gearbox and axle ratings together.
| Measurement | Reference value | Scope / how to verify |
|---|---|---|
| Family GVWR catalogue range | 31,000–72,000 lb14,061–32,659 kg | Covers the brochure family, including non-tractor applications; not a combination rating or payload.Peterbilt 379 factory brochure · PETE-01458 · September 2001 · archived copy ↗ |
Documented cab options
- Day cab
- 36 in Unibilt Low Roof
- 48 in Unibilt Low Roof
- 63 in Unibilt Low Roof
- 48 in Unibilt High Roof
- 63 in Unibilt High Roof
- 48 in Unibilt UltraCab
- 63 in Unibilt UltraCab
- 70 in Unibilt UltraCab / UltraSleeper
Documented transmissions
- Fuller manual · 9 / 10 / 11 / 13 / 15 / 18-speed
- Meritor manual · 9 / 10-speed
- Fuller automated · 10 / 18-speed
- ZF Meritor automated · 12 / 16-speed
- TTC / Spicer manual · 10-speed
- Allison automatic · 4 / 5 / 6-speed
September 2001 catalogue options across the 379 family. Hood, engine, transmission, axle and sleeper compatibility must be confirmed from the original order.
04 / MODELS, YEARS & CHANGES
One badge.
Different reference points.
Publication dates and launch milestones do not establish continuous model-year ranges. Match the VIN, production date and equipment era.
Inspection and build evidence
Confirm standard or extended hood, cab roof and sleeper attachment. Inspect hood hinges, headlamp pods, exhaust supports, frame alterations and fifth-wheel clearance.
- VIN-linked factory build record and production date
- Engine and transmission identification plates
- Axle ratings, tyre ratings and fifth-wheel installation
- Physical measurements of the individual tractor
05 / PUTTING IT TO WORK
Match the trailer to the whole truck.
Use the actual axle ratings, tyres, fifth wheel and combination limits to assess a trailer. Sleeper, tank and fairing packaging also affect swing clearance and access.
HIGHWAYTRAILERS.CA
Flatbed
Start with deck length, load placement, axle distribution and cab-to-trailer clearance.
Read the guide HIGHWAYTRAILERS.CAStep deck
Compare deck height, gooseneck geometry and the loaded combination’s height.
Read the guide HIGHWAYTRAILERS.CARGN / equipment hauling
Check neck compatibility, fifth-wheel loading, wet-kit requirements and the complete axle layout.
Read the guide HIGHWAYTRAILERS.CAHow trailer capacity works
Review the tractor, coupling, trailer, tyres and load as one combination.
Read the guidePulling a trailer
Confirm build-specific combination, axle, tyre and coupling ratings, kingpin and service connections, clearance and actual axle weights. GVW is the loaded truck; GCW is the loaded combination. Neither is trailer payload.
Moving the tractor as cargo
Give the carrier measured length, exterior and mirror widths, height, ground clearance and transport weight. Assess deck access, breakover, loaded height and securement together.
Deck height & loaded height ↗There is no single “379 towing capacity”.
The model badge, artwork and catalogue option selectors cannot rate an individual combination. Obtain the actual build limits and scale weights.
06 / FOLLOW THE EVIDENCE
Sources & open questions
Reviewed September 7, 2026. Manufacturer figures remain tied to their stated reference; converted equivalents are rounded; original source units are retained. Application and inspection notes are editorial guidance.
Reference-specific evidence needed
- Resolve the drawing’s 119.5 / 127.4 in labels from a clearer original before publishing precision values. Earlier 379 revisions and final-production equipment need separate editions.
- Exterior body width, mirror width, overall length, accessory height and coupling height need build-specific evidence.
- A publication date does not establish every production-year boundary. Confirm the VIN and original order.
- No dated factory exterior paint palette has been verified; the colour selector changes the illustration only.