History of the exact car
A shared engine says nothing about accidents or odometer changes. Review records for the full VIN.
Start with the VIN ↑Understand the car behind the VIN
2021 Nissan Altima SR specifications
Build 1N4BL4CW-M · 2.5L · Four-wheel drive · Sedan
Explore the specifications recorded for VIN pattern 1N4BL4CW-M. Start here to understand this version, then check the full VIN for an individual car.
NHTSA vPIC decode · Pattern-level specifications
- Decoded Sep 9, 2026
- 4,729 known VINs
- 74 listings reported active
- Engine
- 2.5L
- Transmission
- Continuously Variable Transmission (CVT)
- Drive
- Four-wheel drive
- Body
- Sedan, 4-door
- Seats
- 5
- Weight class
- Class 1
- Median asking price
- $17,987
The essentials, explained
Engine, transmission & body specifications
As filed by Nissan with NHTSA for this VIN pattern. Fields the filing does not record are left out entirely — a missing row means no recorded value, not a missing feature.
Engine
- Displacement
- 2.5 L
- Fuel type
- Gasoline
Drivetrain
- Drive type
- Four-wheel drive
- Transmission
- Continuously Variable Transmission (CVT)
Body & chassis
- Body class
- Sedan/Saloon
- NHTSA body type
- PASSENGER CAR
- Doors
- 4
- Seats
- 5
- Seat rows
- 2
- Manufacturer
- NISSAN NORTH AMERICA, INC.
Weight rating
- GVWR class
- Class 1
- GVWR
- 6,000 lb or less
Gross vehicle weight rating is the loaded ceiling set by the manufacturer, not the car's own weight.
Driver assistance in the recorded decode
- Forward collision warning Standard
- Crash imminent braking Standard
- Lane keeping assistance Standard
- Blind spot warning Standard
Systems the filing does not record are not listed above. Check the window sticker of the exact car before you rely on any single feature.
The market for this VIN pattern
What are sellers asking?
Asking prices from dealer listings associated with this VIN pattern in the United States. Mileage, condition, options and location can change the value of an individual vehicle.
$17,987 median asking price · 75 listings · as of Sep 6, 2026
Median $17,987
2nd percentile $8,999 98th percentile $22,996
Put the model year in context
Compare asking prices by model year
Explore 7 model years with VIN prefix 1N4BL4CW. These are different vehicles: price differences also reflect mileage, condition, equipment and the listings available. They are not a depreciation forecast.
Median asking prices · bars begin at $0
Highlighted: 2021, the model year on this page. Prices and update dates are specific to each linked year.
- 2019 SR 2.5L Sedan · 4,159 known VINs code K $13,987
- 2020 SR 2.5L Sedan · 4,083 known VINs code L $16,395
-
2021 You are here code M $17,987
- 2022 SR 2.5L Sedan · 5,077 known VINs code N $19,572
- 2023 SR 2.5L 4cyl Sedan · 6,607 known VINs code P $23,434
- 2025 SR 2.5L Sedan · 4,172 known VINs code S $26,379
- 2026 SR 2.5L 4cyl Sedan · 1,278 known VINs code T $33,540
How this VIN pattern is read
A 17-character VIN carries two kinds of information: what was built, and which one it is. This page is the first kind — the nine highlighted positions.
VIN positions 1 through 8 read 1N4BL4CW and position 10 reads M. Those nine characters define this build. Position 9 and positions 11 through 17 describe the check digit, assembly plant and production sequence; they are not part of this pattern.
| Positions | Characters | What they encode |
|---|---|---|
| 1–3 | 1N4 | NISSAN NORTH AMERICA, INC. · World manufacturer identifier |
| 4–8 | BL4CW | Model, body style, engine and restraint system |
| 9 | × | Check digit — computed per vehicle, not part of the build |
| 10 | M | Model year — 2021 |
| 11 | × | Assembly plant |
| 12–17 | ×××××× | Production sequence number, unique to each vehicle |
From a version to your vehicle
Is this the car you’re looking at?
Enter the full VIN — the 17 characters on the windshield or title — to open the vehicle’s page.
Manufacturer reference library
Manuals & reference documents
2021 Nissan Altima PDF Brochure
2021 · US · Model-year brochure. Equipment can vary by vehicle.
Open manufacturer document ↗Documents may cover multiple versions. Check applicability to the individual vehicle; documents load only when opened.
Explore actual vehicles
4,729 known VINs for this pattern
Every VIN we have decoded to 1N4BL4CW-M is associated with this pattern in our records. Shared specifications do not mean shared history, condition or installed options.
- 4,729 Known VINs
- 74 Listings reported active
- 75 Priced listings
- $17,987 Median asking
Vehicles of this build
A fixed sample of 1 known vehicles associated with this pattern — each with its own history page. The sample refreshes quarterly, not nightly, so it stays put between visits.
Browse all 16 VIN record groups
- Group 0 308 VINs
- Group 1 309 VINs
- Group 2 314 VINs
- Group 3 290 VINs
- Group 4 285 VINs
- Group 5 271 VINs
- Group 6 287 VINs
- Group 7 305 VINs
- Group 8 296 VINs
- Group 9 312 VINs
- Group A 288 VINs
- Group B 283 VINs
- Group C 317 VINs
- Group D 294 VINs
- Group E 270 VINs
- Group F 300 VINs
Groups use a stable internal sorting key. Their labels are not VIN characters, locations or model variants.
Neighboring configurations
Other factory configurations of the Altima, each with its own recorded specifications. The set is fixed by the VIN patterns themselves, so it does not shuffle as prices or inventory move.
- 2021 SV 2.5L · Sedan saloon 21,237 known VINs · $15,390 median
- 2021 SL 2.5L · Sedan saloon · 4WD 2,058 known VINs · $20,934 median
- 2021 Platinum 2.5L · Sedan saloon · 4WD 2,046 known VINs · $19,995 median
- 2022 S 2.5L · Sedan saloon 12,154 known VINs · $17,368 median
- 2022 SV 2.5L · Sedan saloon 24,929 known VINs · $17,333 median
Keep going
Useful answers, without the guesswork
2021 Nissan Altima: specification questions
Is this an original window sticker?
No. This page summarizes decoded VIN-pattern specifications. An original sticker or build record is needed to verify the optional equipment of a particular car.
Are the known VINs a production total?
No. These are VINs observed in our records. The count does not establish total production or rarity.
Does a missing specification mean the feature is absent?
No. Missing fields mean that a value is not recorded in this decode. Check the individual vehicle and its manufacturer documentation.
Where this data comes from
Specification fields are decoded from the manufacturer's filings in the NHTSA vPIC database, keyed on VIN positions 1–8 and 10. We publish the filed values as they stand and leave out anything the filing does not record.
Prices are asking prices from 75 live dealer listings decoded to this build , last updated September 6, 2026 . They are what sellers ask, not what buyers paid.
Vehicle counts come from the 4,729 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.
About the NHTSA vPIC data source ↗
Pattern decode updated September 9, 2026.