Two hood lengths
The 2019 brochure distinguishes a 119 in MX hood from the 125 in hood. Sleeper size is a separate choice.
Kenworth T680 factory brochure · 2019 · dealer-hosted ↗
THE TRACTOR REFERENCE DESK
Kenworth
T680 family
Kenworth's aerodynamic on-highway platform; do not confuse a model badge with a sleeper, trim or powertrain specification.
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
Kenworth T680 factory brochure · 2019 · dealer-hosted. 2019 catalogue. The 119 in MX hood and 125 in hood are separate options. Later Next Gen equipment must be checked separately.
DIMENSION GUIDE / A–H
Precision visual reference
Select a measurement to highlight its endpoints and see what the chosen publication confirms.
Kenworth T680 · T680 119 BBC · 2019 · 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.
119 in3,023 mm
Published for this reference; confirm the individual build.
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: Kenworth T680 factory brochure · 2019 · dealer-hosted. Published values remain tied to this edition.
View the complete dimension table ↓02 / THE MEASUREMENTS
Published dimensions
T680 119 BBC · 2019
| Measurement | Reference value | Scope / how to verify |
|---|---|---|
| Bumper to back of cab (BBC) | 119 in3,023 mm | Published in the selected manufacturer reference.Kenworth T680 factory brochure · 2019 · dealer-hosted ↗ |
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
PACCAR MX-11 · PACCAR MX-13 · Cummins X15. 2019 hood options · build-specific axle layout. Read engine, gearbox and axle ratings together.
| Measurement | Reference value | Scope / how to verify |
|---|---|---|
| Cummins X15 catalogue power | 450–605 hp336–451 kW | Published in the selected manufacturer reference.Kenworth T680 factory brochure · 2019 · dealer-hosted ↗ |
| Cummins X15 catalogue torque | 1,450–2,050 lb-ft1,966–2,779 N·m | Published in the selected manufacturer reference.Kenworth T680 factory brochure · 2019 · dealer-hosted ↗ |
Documented cab options
- Day cab
- 40 in Low-Roof FlatTop
- 52 in Aerodyne
- 76 in Mid-Roof Aerodyne
- 76 in High-Roof Aerodyne
Documented transmissions
- PACCAR 12-speed automated
- Eaton Fuller 9 / 10 / 13 / 18-speed manual or automated
- Allison automatic · confirm exact series
2019 catalogue. The 119 in MX hood and 125 in hood are separate options. Later Next Gen equipment must be checked separately.
BUYER RESEARCH · REVIEWED SEPTEMBER 9, 2026
Read the configuration behind the badge
The selectable dimensional sheets cover the 2019 factory brochure. Original-era and later T680 equipment must be researched separately; the same model badge does not establish a hood, electronics package or powertrain.
| Question | Documented reference | Buyer interpretation |
|---|---|---|
| Hood reference | 2019: 119 in MX hood or 125 in hood | 3,023 or 3,175 mm BBC. Neither number is bumper-to-rear-frame length. |
| Sleeper reference | 40, 52 and 76 in options in the brochure | Roof form matters. Measure the highest fitted fairing or accessory; do not add the sleeper label to BBC. |
| Powertrain fit | MX-11, MX-13 and X15 are catalogue families | A transmission torque limit and an engine maximum cannot be combined into a valid order without supporting build evidence. |
Evidence to take to the inspection
For a used T680, ask for the VIN-linked order, engine serial and emissions label, full transmission model, rear ratio and tyre specification together. Then match the displayed edition. Photograph the hood, dash and sleeper, but use those photographs to check identity rather than establish a model year. For winter highway work, inspect the fitted bunk heater, battery capacity and idle-management system; a brochure option does not prove that the candidate has it.
Technical references for this review:
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.
Keep Next Gen orders separate
Use a later order guide for newer cabs, displays, mirrors and powertrain combinations; this sheet preserves the dated 2019 figures.
Kenworth T680 factory brochure · 2019 · dealer-hosted ↗Inspection and build evidence
For Canadian work, assess cold-start evidence, bunk heat/APU condition, corrosion around fairing and cab mounts, aftertreatment history, mountain gearing and service access on the intended routes.
- VIN-linked OEM build record or line-set information
- engine data plate and serial/CPL details
- transmission tag and calibration history
- axle tags, rear ratio and certification labels
- ECM report, service invoices and physical inspection
05 / PUTTING IT TO WORK
Match the trailer to the whole truck.
Long-haul, regional and fleet specifications differ in sleeper, fuel, wheelbase, axle ratio, safety systems and idle-management equipment.
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 “T680 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.
- Kenworth T680 factory brochure · 2019 · dealer-hosted ↗
- Kenworth — T680 ↗
- Kenworth — T680 Next Generation launch ↗
Reference-specific evidence needed
- Add dated Next Gen references and verified production transitions.
- Obtain build-specific overall length, exterior and mirror widths, overall height, fifth-wheel height and actual weights.