5BA-JH4 · 6BA-JH4
Honda N‑WGN Custom JH4 specs
JH4 is the model code of the Honda N-WGN Custom / N-WGN, a kei car. Japan’s transport ministry lists it in its fuel economy lists from 2020–2026 under 2 model types 5BA-JH4, 6BA-JH4. A genuine car’s chassis number starts JH4-.
JH4 at a glance
- Make
- Honda
- Model
- N-WGN Custom, N-WGN
- Model code
- JH4
- Model types
- 5BA-JH4, 6BA-JH4
- In MLIT’s lists
- 2020–2026
- Engines
- S07B 658 cc petrol
- Gearboxes
- CVT automatic
- Drive
- four-wheel drive
- Kerb weight
- 900–930 kg
- Official fuel economy
- 19.5–25.4 km/L (55–72 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.
5BA-JH4
Listed 2026. The 5BA prefix (our explanation, not MLIT’s) means petrol passenger car certified to Japan’s 2018 emissions rules, 50% below their limits. Check 5BA-JH4 against ULEZ and clean air zones.
| Engine | Gearbox | Drive | Weight | Seats | Fuel economy | Listed |
|---|---|---|---|---|---|---|
| S07B658 cc petrol | CVT automatic | four-wheel drive | 910–930 kg | 4 | 23.8–25.4 km/L67–72 mpg, Japanese JC08 test | 2026 |
| S07B658 cc petrol | CVT automatic | four-wheel drive | 910–930 kg | 4 | 19.5–20.7 km/L55–58 mpg, WLTC test | 2026 |
6BA-JH4
Listed 2020–2025. The 6BA prefix (our explanation, not MLIT’s) means petrol passenger car certified to Japan’s 2018 emissions rules, 75% below their limits. Check 6BA-JH4 against ULEZ and clean air zones.
| Engine | Gearbox | Drive | Weight | Seats | Fuel economy | Listed |
|---|---|---|---|---|---|---|
| S07B658 cc petrol | CVT automatic | four-wheel drive | 900–930 kg | 4 | 23.8–25.4 km/L67–72 mpg, Japanese JC08 test | 2020–2024 |
| S07B658 cc petrol | CVT automatic | four-wheel drive | 900–930 kg | 4 | 20–21.2 km/L56–60 mpg, WLTC test | 2020–2025 |
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.
JH4 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 |
|---|---|
| 2019 | JH4-1000001 to 1003352JH4-2000001 to 2001163JH4-8000001 to 8000004 |
| 2020 | JH4-1003353 to 1012587JH4-2001164 to 2003911JH4-8000005 to 8000047 |
| 2021 | JH4-1012588 to 1017982JH4-2003912 to 2004998JH4-8000048 to 8000071 |
| 2022 | JH4-1017983 to 1022525JH4-1100001 to 1102386JH4-2004999 to 2005664JH4-2100001 to 2100530JH4-8000072 to 8000087JH4-8100001 to 8100007 |
| 2023 | JH4-1102387 to 1108485JH4-2100531 to 2101747JH4-8100008 to 8100032 |
| 2024 | JH4-1108486 to 1113471JH4-2101748 to 2102515JH4-8100033 to 8100050 |
| 2025 | JH4-1113472 to 1117011JH4-1200001 to 1201102JH4-2102516 to 2103105JH4-2200001 to 2200223JH4-8100051 to 8100066JH4-8200001 to 8200005 |
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 a JH4 before you buy
Make sure the car is what the advert says: the chassis number on the V5C should start JH4-, 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 Honda N-WGN Custom model codes
Questions
What engine does the JH4 have?
MLIT lists the Honda N-WGN Custom / N-WGN JH4 with S07B 658 cc petrol.
What fuel economy does the JH4 get?
Officially between 19.5 and 25.4 km/L (about 55–72 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 JH4?
Between 900 and 930 kg kerb weight, depending on the version.
Is 5BA-JH4 the same as JH4?
Yes. 5BA-JH4 is the full model type: the letters before the hyphen are Japan’s emissions code, which changed as the rules were tightened, and JH4 is the model code. The chassis number starts with JH4-.
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 Honda 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.