The Kenworth L770 spans 2022–2026 with 6 recorded NHTSA recalls and a 4.5/5 ForCar reliability score. It delivers competitive fuel economy and NHTSA-rated safety.
How we score: NHTSA crash-test safety (40%), recall frequency across all years (25%) and the share of owner complaints involving a crash, fire or injury (35%). Based on NHTSA & EPA data — not user reviews.
Overview
The Kenworth L770 is one of the most popular vehicles in its class, produced from 2022 to 2026 across multiple generations.
How to read a Kenworth L770 VIN — every digit explained
Every Kenworth L770 carries a unique 17-character VIN stamped at the factory. Each position is a code — together they spell out where, when and how your car was built. Here's exactly what every digit means.
- WMI (1–3) — country & manufacturer. Tells you it's a Kenworth and the country it was built in (real Kenworth codes below).
- VDS (4–8) — model, body style, engine, trim & restraints. The 8th digit is the engine code.
- Check digit (9) — a math check that proves the VIN is genuine.
- Model year (10) — the year it was built (e.g. R = 2024, S = 2025).
- Plant (11) — which factory assembled this L770.
- Serial (12–17) — the unique sequential production number.
- Mexico3WK · 3WM · 3XK
- USA1XK
- Canada2XK
- UKSFN
Digits 4–17 — the engine code (8th), model-year letter (10th) and plant — follow the universal SAE standard, identical on every car. For the full year-code table (2001–2026), country codes and where the VIN is stamped on your L770, see the complete guide to reading a VIN.
How many recalls does the Kenworth L770 have?
The Kenworth L770 has 6 recorded NHTSA recalls across 2022–2026. Pick a year below to see its recalls — then verify open recalls against your specific VIN.
2026 Kenworth L770 recalls 2
Steering
What's wrong. PACCAR Incorporated (PACCAR) is recalling certain 2026 Kenworth L770 and 2024-2026 Peterbilt 520 vehicles. The right-hand stand-up (RHSU) configuration on the steering cross-shaft may become stressed and fail.
Risk. A steering cross-shaft that fails can cause a loss of steering control, increasing the risk of a crash.
Fix. Dealers will inspect and repair the steering cross-shafts and replace any damaged or broken cross-shafts, free of charge. Owner notification letters were mailed March 13, 2026. Owners may contact Peterbilt's customer service at 1-940-591-4220 and Kenworth's customer service at 1-425-828-5888. PACCAR's number for this recall is 26PACA.
Exterior Lighting:lighting Control Module:software
What's wrong. PACCAR Incorporated (PACCAR) is recalling certain 2024-2026 Kenworth T480, T680, T880, W990, Peterbilt 520, 536, 537, 548, 567, 579, 589, 2025 Kenworth T180, Peterbilt 535, 2025-2026 Kenworth T280, T380 and L770 vehicles. The tail brake light, upper and lower beam headlights, reverse light, and turn signal may not illuminate as intended. In addition, the lift axles, if lowered, may revert to a raised position, or oscillate up and down when the signal warning lights are activated. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, "Lamps, Reflective Devices and Associated Equipment."
Risk. Delayed and unsteady headlights can result in insufficient illumination of the road, decreasing the driver's visibility and increasing the risk of a crash. In addition, an unexpected position change of the lift axles may increase the risk of injury.
Fix. Dealers will update the VCU software, free of charge. Owner letters were mailed August 19, 2025. Owners may contact Kenworth's customer service at 1-425-828-5888 and Peterbilt's customer service at 1-940-591-4220. PACCAR's number for this recall is 25PACF.
2025 Kenworth L770 recalls 3
Exterior Lighting:lighting Control Module:software
What's wrong. PACCAR Incorporated (PACCAR) is recalling certain 2024-2026 Kenworth T480, T680, T880, W990, Peterbilt 520, 536, 537, 548, 567, 579, 589, 2025 Kenworth T180, Peterbilt 535, 2025-2026 Kenworth T280, T380 and L770 vehicles. The tail brake light, upper and lower beam headlights, reverse light, and turn signal may not illuminate as intended. In addition, the lift axles, if lowered, may revert to a raised position, or oscillate up and down when the signal warning lights are activated. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, "Lamps, Reflective Devices and Associated Equipment."
Risk. Delayed and unsteady headlights can result in insufficient illumination of the road, decreasing the driver's visibility and increasing the risk of a crash. In addition, an unexpected position change of the lift axles may increase the risk of injury.
Fix. Dealers will update the VCU software, free of charge. Owner letters were mailed August 19, 2025. Owners may contact Kenworth's customer service at 1-425-828-5888 and Peterbilt's customer service at 1-940-591-4220. PACCAR's number for this recall is 25PACF.
Steering:linkages:tie Rod Assembly
What's wrong. PACCAR Incorporated (PACCAR) is recalling certain 2025 Kenworth K270, K370, L770, T280, T380, T480, T680, T880, W900, W990, 2025 Peterbilt 220, 520, 536, 537, 548, 567, 579, and 589 trucks. The tie rod or drag link assembly may contain an improperly heat-treated ball stud, causing the ball stud to break.
Risk. A broken ball stud can cause a complete loss of steering control, increasing the risk of a crash.
Fix. Owners are advised not to drive their vehicles until the remedy has been completed. Dealers will inspect and replace the tie rod and drag link assemblies as necessary, free of charge. Owner notification letters were mailed August 6, 2024. Owners may contact Kenworth customer service at 1-425-828-5888 and Peterbilt customer service at 1-940-591-4220. PACCAR's numbers for this recall are 24KWG and 24PBG.
Steering
What's wrong. PACCAR Incorporated (PACCAR) is recalling certain 2024-2025 Kenworth T280, T380, T480, T680, T880, L770, W990, and 2024-2025 Peterbilt 389, 520, 535, 536, 537, 548, 567, 579, 589 trucks. The steering gear assemblies may have been assembled incorrectly with fewer recirculating balls than are required, which may result in a loss of steering control.
Risk. A loss of steering control increases the risk of a crash.
Fix. Dealers will inspect and replace the steering gears as necessary, free of charge. Owner notification letters were mailed March 20, 2024. Owners may contact Peterbilt customer service at 1-940-591-4220 and/or Kenworth customer service at 1-425-828-5888. PACCAR's numbers for this recall are 24PBC and 24KWC.
2024 Kenworth L770 recalls 1
Steering
What's wrong. PACCAR Incorporated (PACCAR) is recalling certain 2024-2025 Kenworth T280, T380, T480, T680, T880, L770, W990, and 2024-2025 Peterbilt 389, 520, 535, 536, 537, 548, 567, 579, 589 trucks. The steering gear assemblies may have been assembled incorrectly with fewer recirculating balls than are required, which may result in a loss of steering control.
Risk. A loss of steering control increases the risk of a crash.
Fix. Dealers will inspect and replace the steering gears as necessary, free of charge. Owner notification letters were mailed March 20, 2024. Owners may contact Peterbilt customer service at 1-940-591-4220 and/or Kenworth customer service at 1-425-828-5888. PACCAR's numbers for this recall are 24PBC and 24KWC.
Best and worst years for the Kenworth L770
We're still compiling NHTSA owner-complaint history for the Kenworth L770 — best- and worst-year trends will appear here once that data is in.
What are the most common Kenworth L770 problems?
We're still compiling NHTSA owner-complaint data for the Kenworth L770 — the most-reported problems will appear here once that data is in.
Source: NHTSA owner complaints, all model years. Bar = share of total complaints. Full reports searchable on NHTSA.gov.
Kenworth L770 specifications & dimensions
The 2026 Kenworth L770. Full dimensions below — engine, horsepower and trim decode from your VIN. For the original factory build — MSRP, trim and standard equipment — rebuild the Kenworth L770 window sticker.
| Specs cache warming… |
Source: NHTSA vPIC / Transport Canada vehicle specifications. Metric values converted to imperial; generation ranges approximate.
Kenworth L770 cargo space, seating & interior room
How much the L770 holds — passengers and cargo. Seating, cargo and interior dimensions vary by trim and seat configuration — decode your VIN for the exact build.
Exact seating capacity, third-row availability, legroom and headroom decode from your VIN or vary by trim — the original factory equipment & options list shows what each trim included.
Passenger & cargo volume from EPA fueleconomy.gov (largest configuration). Seats, legroom and headroom from NHTSA vPIC on VIN decode.
Kenworth L770 tire size, oil type & owner specs
The fitment owners look up most — tires, wheels, oil and batteries. Exact wheel and tire sizes decode from your VIN or the driver's door-jamb placard; the universal items are listed below.
Exact tire, wheel, oil grade, capacity and battery group are added per trim and model year — decode your VIN above for the factory fitment. Universal items shown as-is.
What MPG does the Kenworth L770 get?
MPG cache warming… reload in a moment.
What engines does the Kenworth L770 have? Power & range
Powertrain data warming… reload in a moment.
How much does a Kenworth L770 cost to own?
A Kenworth L770 holds its value well. A typical example keeps roughly 56% of its value after five years — losing about 44% to depreciation. Check what a used L770 is worth today or browse current used-market prices before you buy or sell. Fuel, maintenance and insurance add to the total cost to own.
| Age | Value retained | Est. resale value | Lost to depreciation |
|---|---|---|---|
| Year 1 | 84% | $25,200 | −$4,800 |
| Year 2 | 76% | $22,800 | −$7,200 |
| Year 3 | 68% | $20,400 | −$9,600 |
| Year 4 | 61% | $18,300 | −$11,700 |
| Year 5 | 56% | $16,800 | −$13,200 |
What goes into the five-year cost to own:
- Depreciation — the biggest cost: this L770 loses about 44% of its value over five years. See the full depreciation curve by age.
- Fuel — based on EPA economy at roughly 15,000 miles a year.
- Maintenance & repairs — routine service, tires and wear items as the L770 ages.
- Insurance — varies by driver, state and trim; get a quote for your exact figure.
Resale & depreciation are ForCar estimates from typical segment value-retention curves — not a live market quote. Fuel from EPA fueleconomy.gov at ~15k mi/yr.
Is the Kenworth L770 safe?
NHTSA crash-test ratings aren't published for the L770 yet — see the top-rated safest cars instead.
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How many miles does a Kenworth L770 last?
A well-maintained Kenworth L770 typically lasts 250,000–300,000+ miles. It's exceptionally durable — with routine maintenance many owners report 250k+ on the original powertrain. Its ForCar Reliability Score is 4.5/5.
Check your Kenworth L770’s VIN — history, recalls & specs
Title records, open recalls, build details and paint code — straight from the VIN. Free.
Check this L770’s VIN free →All Kenworth L770 model years
A year-by-year snapshot of the Kenworth L770 — recalls, best EPA fuel economy and NHTSA safety. Tap a year for full details.
| Year | Recalls | Best MPG | Safety |
|---|---|---|---|
| 2026 L770 | 2 recalls | — | — |
| 2025 L770 | 3 recalls | — | — |
| 2024 L770 | 1 recall | — | — |
| 2023 L770 | 0 | — | — |
| 2022 L770 | 0 | — | — |
Recalls = NHTSA campaigns that year · MPG = best EPA combined · Safety = NHTSA overall stars (tested years).
Frequently asked questions
What are the worst years for the L770?
We're still compiling NHTSA owner-complaint history for the Kenworth L770.
How many recalls does the L770 have?
6 recorded NHTSA recalls across 2022–2026. Always check open recalls by your VIN.
How many miles does a L770 last?
A well-maintained L770 typically reaches 200,000–300,000 miles with regular maintenance.
Is the L770 reliable?
Our ForCar Reliability Score for the L770 is 4.5/5, based on NHTSA safety, recall history and complaint severity.
What's the Kenworth L770 warranty?
New Kenworth models carry a 3 years / 36,000 miles basic (bumper-to-bumper) warranty and a 5 years / 60,000 miles powertrain warranty. Coverage can vary by model year and market — confirm with a Kenworth dealer.
Where is the Kenworth L770 made?
The assembly plant is encoded in the VIN — the 11th character. Decode your L770's VIN above to see exactly where it was built; Kenworth may build it at more than one plant depending on the year.
How much ground clearance does the L770 have?
Ground clearance varies by trim and drivetrain — AWD/4WD versions often sit higher. Decode your VIN or check the specific trim for the exact figure.