Peterbilt VIN Number Lookup — Free Class 8 Decode With Engine, GVWR, and Title History.
Every Peterbilt leaves the Denton, Texas plant with a 17-character VIN that pins down the model series, engine family, GVWR class, and cab configuration the factory built. A Peterbilt VIN number lookup translates that string into the spec your PACCAR dealer reads off the door-jamb FMVSS label — then layers in the title, lien, and recall records commercial buyers actually need. Drop the VIN below to decode a 579, 589, 389, 567, or medium-duty 537, and to surface any NMVTIS title brand or open NHTSA campaign. Free, instant, no sign-up.
Free Peterbilt VIN Lookup — Decode Any Peterbilt VIN
Enter the 17-character Peterbilt VIN and we'll surface the model series, engine family, GVWR class, plant, open recalls, and any title brand — instantly.
Free · No sign-up · Instant Class 8 decode
Quick Answer
- How do I look up a Peterbilt VIN number?
- To look up a Peterbilt VIN number, find the 17-character VIN on the driver-door jamb FMVSS label, the passenger-side frame rail, or the title, then enter it into CarCheckerVIN's free Peterbilt VIN lookup — it decodes the model series, PACCAR MX or Cummins engine, GVWR class, and plant, and checks NMVTIS title brands and NHTSA recalls instantly, no sign-up.
- What is Peterbilt's VIN prefix (WMI)?
- US-built Peterbilt trucks use the World Manufacturer Identifier 1XP, with 1NP also assigned to Peterbilt. The first three characters name the builder and country; positions 4 through 8 describe the model and drivetrain.
- Does a Peterbilt VIN show the engine?
- The VIN's descriptor section indicates the engine family and GVWR class, but full build detail — exact engine serial, ratings, and options — lives on the PACCAR data sheet and door-jamb label. Glider kits with remanufactured drivetrains can break VIN-to-engine matching, so verify against the label.
What a Peterbilt VIN Reveals
A Class 8 Peterbilt VIN follows the same 17-character ISO 3779 standard as a passenger car, but it decodes heavy-truck attributes: GVWR class, engine family, cab configuration, and axle setup. Here is what comes back when you look up a Peterbilt VIN with us.
Engine family + GVWR class
Position 8 relates to the engine and gross weight rating, decoding the engine family — PACCAR MX-13, PACCAR MX-11, or Cummins X15 — and the Class 8 GVWR band (33,001+ lbs). The exact engine serial and horsepower rating live on the PACCAR data sheet, not the 17-character string.
Transmission + axle config
The descriptor section indicates the drivetrain layout — Eaton Fuller manual or UltraShift, or a PACCAR TX-12/TX-18 AMT — and the axle configuration (6x4 tandem, single-drive, or heavy-haul setups on the 567). Full ratios come from the spec sheet.
Cab configuration
Day cab versus sleeper, and sleeper size where encoded — including the 80-inch Ultraloft on the 579. The VIN attributes plus the FMVSS label together confirm whether a listing's cab claim matches the truck.
Model series
579 aero on-highway flagship, 589 new classic (replacing the 389), 389/379 long-hood classic, 567 vocational and heavy-haul, 520 refuse cabover, 548/537 medium-duty, and the 220 cabover — decoded straight from the vehicle-descriptor characters.
Assembly plant
Position 11 identifies the plant. Modern Peterbilts are built in Denton, Texas; the Ste-Thérèse, Quebec plant appears on legacy trucks. Handy when a recall is plant-specific or build-date-specific.
Production sequence + history
The trailing characters are the unique production sequence. Paired with our records, the lookup adds the NMVTIS title brand, any lien or UCC filing, and the odometer or ECM-hour history — the fields commercial buyers weigh most.
Decoding a Peterbilt VIN
Peterbilt is a Class 8 heavy-truck maker owned by PACCAR, the parent it shares with Kenworth. Its VINs follow the global ISO 3779 standard, but the WMI and plant codes are worth knowing. Here's how a Peterbilt VIN number lookup parses the 17 characters position by position.
The first three characters are the World Manufacturer Identifier (WMI). US-built Peterbilt trucks carry 1XP, with 1NP also assigned to Peterbilt. These prefixes identify the builder and country before the descriptor section even begins.
Positions 4 through 8 are the Vehicle Descriptor Section — model series, cab configuration, axle arrangement, and engine or GVWR relationship. Position 8 relates to the engine and gross weight rating, which is why it's the most-scrutinized character on a Class 8 truck. The 9th character is the check digit; the 10th is the model year (L=2020, M=2021, N=2022, P=2023, R=2024, S=2025, T=2026).
The 11th character is the assembly plant code — Denton, Texas on modern trucks, with the legacy Ste-Thérèse, Quebec plant appearing on older units. The final six characters are the production sequence, a unique serial on every truck. Match this decoded truck against the door-jamb FMVSS label and the frame-rail stamping before you trust it.
Peterbilt VIN at a glance
- WMI (positions 1–3)
1XP / 1NP - Engine / GVWR
Position 8 - Model year
Position 10 - Plant code
Position 11
One 17-character Peterbilt VIN, the factory build class on record. Run the decode in seconds with no account.
What a Class 8 VIN Can — and Can't — Tell You
Be honest about the limits. A commercial Peterbilt VIN reliably decodes the GVWR class, cab configuration, engine family, and axle arrangement. But detailed spec and build data — exact engine ratings, transmission ratios, options, and installed equipment — lives on the truck's PACCAR data sheet and the door-jamb FMVSS certification label, not fully inside the 17-character VIN. Treat the VIN as the identifier and the spec sheet as the build record.
One trap for used buyers: glider kits. A glider is a new Peterbilt body and chassis mated to an older or remanufactured drivetrain, so the engine in the truck may not match what the VIN's descriptor implies. Always confirm the engine against the door-jamb label and the data sheet. For the shared heavy-truck fundamentals — Class 8, GVWR, and DOT registration across every builder — see our semi truck VIN lookup.
Heavy-truck deep dive: Semi Truck VIN Lookup — Class 8, GVWR, and DOT context for tractors and trailers from every builder, decoded through the same free tool.
Where to Find Your Peterbilt VIN
A Peterbilt VIN number lookup is only as fast as you can find the VIN. Heavy trucks carry it in more places than a car because the cab and chassis are often built separately — check these and make sure they all agree.
Driver-door jamb (FMVSS label)
Open the driver's door. The federal FMVSS certification label lists the VIN, GVWR, axle ratings, and build date. This is the most authoritative single source on the truck.
Frame rail (passenger side)
Stamped into the steel on the passenger-side frame rail near the front. This is the true chassis number — trust it if a label looks tampered with or re-riveted.
Dash by the windshield
Visible through the windshield on newer Peterbilts, on the dash at the base of the glass. Fastest to read from outside without opening the cab.
Vehicle title document
The state-issued title prints the VIN at the top. On a used-truck purchase, match this against the dash plate and the door-jamb label before you pay.
Cab card / IRP registration
The IRP apportioned cab card and registration list the VIN. Useful when the truck runs interstate and you're verifying paperwork before a sale.
PACCAR data / spec sheet
The build spec sheet ties the VIN to the exact engine rating, transmission, and options — the detail the 17-character string alone can't carry.
Found the VIN? Paste it into the form above and run a free Peterbilt VIN lookup against NMVTIS, the NHTSA recall feed, and the Class 8 decoder.
Look Up This Specific Peterbilt VIN Now
Decoded series, engine family, GVWR class, open recalls, and title brands — instantly. Free, no sign-up, no card required.
Common Peterbilt Recalls a VIN Lookup Surfaces
Class 8 trucks carry safety recalls just like passenger vehicles, and on a used Peterbilt the work often was never completed. A Peterbilt VIN number lookup queries the live NHTSA feed and surfaces any open campaign attached to the VIN. These are recurring recall themes across the heavy-truck fleet.
Steering components
Heavy-truck steering recalls have covered steering shaft, gear, and linkage components that could loosen or fail. A VIN lookup confirms whether a steering-related campaign is open and unresolved on the specific truck.
Brake / ABS systems
Air-brake and ABS campaigns address valve, module, and wiring faults that can extend stopping distance or disable anti-lock function. On a Class 8 tractor this is a stop-the-deal item until confirmed complete.
Fuel line / fuel system
Fuel-line routing, fitting, and chafing recalls have appeared across heavy trucks, with leak-and-fire risk near hot engine components. A VIN check surfaces any open fuel-system campaign.
Wiring / electrical
Chassis and cab wiring recalls cover harness routing and connector faults that can cause shorts, lost lighting, or no-start conditions. The lookup pulls the exact campaigns the VIN is open on.
Headlamp / lighting
Headlamp aim, wiring, and daytime-running-lamp campaigns affect nighttime visibility and DOT compliance. A VIN lookup flags any open lighting recall before an inspection catches it.
Verify at a PACCAR dealer
Every open recall stays attached to the VIN until a PACCAR dealer completes the fix, and recall repairs are free regardless of ownership. If the lookup shows an open campaign, schedule it before the truck goes back to work.
Free Peterbilt Lookup vs. a Full Report — the Honest Framing
A free Peterbilt VIN number lookup is not a full report, and it's fair to say so. Here's where the free decode ends, where a paid report begins, and why a $14.99 CarCheckerVIN report is a genuine differentiator for Class 8 buyers.
Free decode ≠ full history
The free lookup returns the model series, engine family, GVWR class, plant, and any open recalls — enough to confirm a listing matches the truck. It does not include the full title chain, every lien, or the complete odometer and ECM-hour record. That's the paid tier.
$14.99 vs. Carfax $44.99
Our full Peterbilt report is $14.99 against Carfax at $44.99 — and for Class 8 commercial trucks the price gap comes with a coverage gap. Carfax coverage for heavy commercial units is thin, so the difference isn't just cost.
Built for commercial buyers
Class 8 buyers rely on title status, lien and UCC filings, and odometer or ECM-hour history — exactly the NMVTIS-sourced fields a full report surfaces. That's where a commercial-focused report earns its keep over a consumer-car database.
Compare the full report tiers on our pricing page — NMVTIS title, lien, and odometer history for a fraction of one bad-truck repair bill.
Related Peterbilt + Heavy-Truck Checks
A Peterbilt VIN number lookup is the entry point. These focused checks add title, lien, recall, and fleet depth when you want to be thorough on a Class 8 purchase.
Always check the VIN before you buy
Our free report reveals accidents, title brands, odometer rollback, theft records, and open recalls in seconds.
Peterbilt VIN Number Lookup — Frequently Asked Questions
The questions Peterbilt buyers and owner-operators ask most when they look up a Class 8 VIN.
How do I look up a Peterbilt VIN number?+
Find the 17-character VIN on your Peterbilt — the easiest spots are the driver-door jamb FMVSS certification label, the passenger-side frame rail near the front, the dash at the base of the windshield, or the title. Then paste it into the Peterbilt VIN number lookup form on this page. The tool validates that the VIN is exactly 17 characters with no I, O, or Q, then decodes the model series, engine family, GVWR class, and plant while checking the NHTSA recall feed and NMVTIS title records in parallel. You'll see the results in seconds, with no account, no credit card, and no hidden charges.
What is Peterbilt's VIN prefix or WMI?+
US-built Peterbilt trucks use the World Manufacturer Identifier 1XP, and 1NP is also assigned to Peterbilt. The WMI is the first three characters of the VIN and identifies the builder and country of assembly. Peterbilt shares its parent company, PACCAR, with Kenworth, but each brand has its own distinct WMI prefixes, so a 1XP or 1NP prefix confirms you're decoding a genuine Peterbilt rather than a Kenworth or another PACCAR product.
Does a Peterbilt VIN tell me the engine?+
Partly. Position 8 of the VIN relates to the engine and gross weight rating, so the decode indicates the engine family — PACCAR MX-13, PACCAR MX-11, or Cummins X15 — and the Class 8 GVWR band. But the exact engine serial, horsepower rating, and installed options live on the PACCAR data sheet and the door-jamb FMVSS label, not fully inside the 17-character VIN. This matters most on glider kits, where a new Peterbilt body is mated to an older or remanufactured drivetrain — always confirm the actual engine against the door label and spec sheet.
Where is the VIN on a Peterbilt truck?+
Every modern Peterbilt carries the VIN in several places. The most authoritative is the driver-door jamb FMVSS certification label, which also lists the GVWR and axle ratings. It's also stamped into the passenger-side frame rail near the front — the true chassis number — and visible on the dash through the windshield on newer trucks. It appears again on the title and the IRP apportioned cab card. Always confirm the frame-rail stamping, the door label, and the title all match before buying a used Peterbilt.
How do I check Peterbilt recalls with a VIN?+
Run the VIN through the Peterbilt VIN number lookup on this page. The tool queries the live NHTSA recall feed and returns any open safety campaign attached to the VIN — recurring Class 8 themes include steering components, brake and ABS systems, fuel-line routing, chassis and cab wiring, and headlamp or lighting faults. Open recalls stay attached to the VIN until a PACCAR dealer completes the repair, and heavy-truck recall work is free regardless of ownership. If a campaign shows open, schedule it at a Peterbilt or PACCAR dealer before the truck returns to service.
Is the Peterbilt VIN lookup free, and how is it different from Carfax?+
Yes, the basic Peterbilt VIN number lookup on this page is free, with no sign-up and no credit card. It returns the decoded spec, open recalls, and a title-brand summary. A full CarCheckerVIN report is $14.99 versus roughly $44.99 for Carfax, and the gap matters for Class 8 trucks: Carfax coverage for heavy commercial units is thin, so a commercial-focused report is a genuine differentiator. Commercial buyers lean on title status, lien and UCC filings, and odometer or ECM-hour history — the NMVTIS-sourced fields a full report surfaces.
Which Peterbilt models can I decode by VIN?+
The lookup decodes the full modern Peterbilt lineup: the 579 aero on-highway flagship, the new 589 classic that replaces the long-running 389, the 389 and older 379 long-hood classics, the 567 vocational and heavy-haul truck, the 520 refuse cabover, the 548 and 537 medium-duty trucks, and the 220 cabover. The VIN's descriptor section identifies the series along with the cab configuration and axle arrangement, while the PACCAR data sheet fills in the exact engine, transmission ratios, and option content the 17-character VIN can't carry on its own.
CarCheckerVIN is an independent vehicle history service and is not affiliated with, endorsed by, or sponsored by Peterbilt Motors Company or PACCAR Inc. Peterbilt and PACCAR are trademarks of their respective owners.
Ready to Look Up a Peterbilt VIN?
Enter any 17-character Peterbilt VIN to decode the model series, engine family, and GVWR class, surface open NHTSA recalls, and check NMVTIS title brands. No account, no card, no catch.
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