Factory build sheet

2021 Hyundai Sonata SE

Build 5NPEG4JA-M · 2.5L · Front-wheel drive

VIN positions 1 through 8 read 5NPEG4JA and position 10 reads M. Those nine characters define this build. Position 9 and positions 11 through 17 differ on every car.

Every Sonata whose VIN starts 5NPEG4JA and carries M in position 10 left the plant with the same engine, transmission, drivetrain and equipment listed below. We know of 13,713 of them.

  • Decoded Jul 7, 2026
  • 13,713 known VINs
  • 129 listed for sale now

Factory specification

As filed by Hyundai with NHTSA for this build. 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
Engine model
GDI THETA III
Valve train
Dual Overhead Cam (DOHC)
Fuel type
Gasoline

Drivetrain

Drive type
Front-wheel drive

Body & chassis

NHTSA body type
PASSENGER CAR
Manufacturer
HYUNDAI-KIA AMERICA TECHNICAL CENTER INC (HATCI)

What this build asks today

Asking prices of live dealer listings decoded to this exact configuration — narrower than the trim-level figure, because every car counted here shares the same engine, transmission and drivetrain.

$14,576 median asking price · 136 listings · as of Sep 6, 2026

Low 2% of listings $3,995 Top 2% of listings $20,900

Compare every 2021 Sonata trim and its price →

The same build, other model years

Hyundai used the VIN pattern 5NPEG4JA for 2 model years. Nothing but the year changes between these pages, so the price gap between them is depreciation on an identical car.

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.

Positions Characters What they encode
1–3 5NP HYUNDAI-KIA AMERICA TECHNICAL CENTER INC (HATCI) · World manufacturer identifier
4–8 EG4JA 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

NHTSA safety ratings

Crash-test results are published per model year and body style, so they cover the 2021 Hyundai Sonata as a whole rather than this build alone.

Overall

★★★★★ 5 / 5

Frontal crash

★★★★ ★ 4 / 5

Side crash

★★★★★ 5 / 5

Rollover

★★★★★ 5 / 5

4 recall campaigns are recorded for the 2021 Sonata. Recalls are issued per VIN range — check the VIN of the car you are looking at, not the model.

13,713 vehicles carry this build

Every VIN we have decoded to 5NPEG4JA-M shares the specification above.

  • 13,713 Known VINs
  • 129 Listed for sale now
  • 136 Priced listings
  • $14,576 Median asking

Vehicles of this build

A fixed sample of 3 vehicles carrying this configuration — each with its own history page. The sample refreshes quarterly, not nightly, so it stays put between visits.

Cars are filed by a fixed rule based on the VIN, so a car never moves between groups.

Browse all 13,713 VINs of this build →

Neighboring configurations

Other factory configurations of the Sonata, each with its own build sheet. The set is fixed by the VIN patterns themselves, so it does not shuffle as prices or inventory move.

Keep going

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 136 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 13,713 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.