ABA-S321N
Subaru Dias S321N specs
S321N is the model code of the Subaru Dias, a kei car. Japan’s transport ministry lists it in its fuel economy lists from 2010–2020 under the model type ABA-S321N. A genuine car’s chassis number starts S321N-.
S321N at a glance
- Make
- Subaru
- Model
- Dias
- Model code
- S321N
- Model types
- ABA-S321N
- In MLIT’s lists
- 2010–2020
- Engines
- KF 658 cc petrol
- Gearboxes
- 4-speed automatic
- Drive
- rear-wheel drive
- Kerb weight
- 970–1,010 kg
- Official fuel economy
- 14.4–15.2 km/L (41–43 mpg)
Fuel economy is from Japan’s official tests and is usually better than you’ll see on UK roads. MLIT doesn’t list power or torque.
ABA-S321N
Listed 2010–2020. The ABA prefix (our explanation, not MLIT’s) means petrol passenger car certified to Japan’s 2005 emissions rules. Check ABA-S321N against ULEZ and clean air zones.
| Engine | Gearbox | Drive | Weight | Seats | Fuel economy | Listed |
|---|---|---|---|---|---|---|
| KF658 cc petrol | 4-speed automatic | rear-wheel drive | 970–990 kg | 4 | 15.2 km/L43 mpg, Japanese 10-15 mode test | 2010–2012 |
| KF658 cc petrol | 4-speed automatic | rear-wheel drive | 970–1,010 kg | 4 | 14.4–15.2 km/L41–43 mpg, Japanese JC08 test | 2013–2020 |
Each row is one version as MLIT lists it. A version can appear twice when MLIT gave figures on two tests that year. Low-emission stars and trim names aren’t shown. MLIT gives fuel economy in km/L; the mpg figures are our conversion to UK gallons. Japanese tests are gentler than real UK driving, so expect less.
S321N build year by chassis number
Japan’s carmakers list the chassis numbers each code was built with every year from 2015. Find the serial below, or use the build year finder.
| Built | Chassis numbers |
|---|---|
| 2015 | S321N-002737 to 003010 |
| 2016 | S321N-003011 to 003297 |
| 2017 | S321N-003298 to 003473 |
| 2018 | S321N-003474 to 003724 |
| 2019 | S321N-003725 to 003925 |
| 2020 | S321N-003926 to 003957 |
From the JAMA chassis number lists: 車台番号一覧表. We keep only the chassis code, serial ranges and year. JAMA calls them reference information, not a certificate.
Check an S321N before you buy
Make sure the car is what the advert says: the chassis number on the V5C should start S321N-, and the engine and gearbox should match one of the versions above. Our free check reads the UK MOT history and compares it with the chassis code.
Other Subaru Dias model codes
Questions
What engine does the S321N have?
MLIT lists the Subaru Dias S321N with KF 658 cc petrol.
What fuel economy does the S321N get?
Officially between 14.4 and 15.2 km/L (about 41–43 mpg), depending on the version, on Japan’s own tests. Real-world figures are usually lower, especially against the older 10-15 mode test.
How heavy is the S321N?
Between 970 and 1,010 kg kerb weight, depending on the version.
Is ABA-S321N the same as S321N?
Yes. ABA-S321N is the full model type: the letters before the hyphen are Japan’s emissions code, which changed as the rules were tightened, and S321N is the model code. The chassis number starts with S321N-.
About these figures
The model types, engine codes, capacities, gearboxes, drive, weights, seats and km/L figures are copied from MLIT’s yearly lists of cars on sale in Japan each March, so “listed” years are list years, not exact production dates. The English model names, mpg conversions, emissions code explanations and chassis number matching are ours. Lists before 2013 were printed as PDFs that we read by machine; where an older list gives an engine code that doesn’t match its capacity, we’ve used the figure the same model type has in other years. Check anything that matters against the car’s own papers. Spotted a mistake? Email [email protected]. All Subaru model codes.
Source: Ministry of Land, Infrastructure, Transport and Tourism (MLIT), Japan, fuel economy lists 2004–2026, used under the Public Data License 1.0. Edited and translated by JDM History.