5-speed manual (5MT)
A five-speed manual gearbox — the dominant transmission on commonly imported kei trucks and the only way to get diff-lock and low-range trims.
How it works
A five-speed manual gearbox with a clutch pedal. The dominant transmission type across the DA63T, DA62T, HA6, HA7, S200P, S210P, and most other commonly imported kei trucks. The fifth gear is an overdrive ratio for improved highway cruising.
Pros and cons
Advantages
- ✓ Maximizes the limited power output of a 660cc engine — no parasitic losses
- ✓ Tighter ratio spacing than 4MT — engine stays in its power band longer
- ✓ Proven, robust, easy to rebuild
- ✓ Best fuel economy of all kei transmission types
- ✓ Required for off-road capability with diff-lock and low-range (manual-only trims)
Disadvantages
- ✗ Requires a clutch — not suitable for all drivers
- ✗ Clutch replacement is an expected maintenance item on used imports
Maintenance schedule
| Item | Specification |
|---|---|
| Service interval | Inspect gear oil at every service; replace every 40,000–60,000 km |
| Fluid specification | GL-4 75W-90 gear oil |
Common issues
| Issue | Severity | Notes |
|---|---|---|
| Clutch wear | Minor | Expected on any used import. Slipping clutch on acceleration or difficulty engaging gears signals replacement time. Budget $200–$400 for a clutch kit on arrival if history is unknown. |
| Synchromesh wear (2nd and 3rd) | Minor | Common on higher mileage or trucks that have been driven hard. Symptom: grinding on downshift into 2nd or 3rd. Synchros are replaceable. |
| Gear oil leaks at output shaft seal | Minor | Inspect underneath on any purchase. Low gear oil causes rapid internal wear. |
Recommended for
Most buyers — especially anyone wanting 4WD, diff-lock, low range, or maximum reliability
How the 5MT compares — and why most buyers should choose it
The 5MT is the correct answer for most kei truck buyers. There is no power loss through a torque converter, no fluid that must be changed on a strict schedule under penalty of expensive failure, and no restriction on which grades you can buy. The diff-lock and low-range trims that off-road buyers specifically want are only available with a manual transmission.
Against the 4AT, the 5MT wins on power, fuel economy, off-road capability, and long-term repair cost. The 4AT wins only on ease of driving — no clutch required. That is a real advantage for some buyers, but it comes at a measurable cost in real-world performance from a 44hp engine.
Against the CVT, the 5MT wins on repairability, heavy-haul suitability, and compatibility with off-road trims. The CVT wins on smoothness and city fuel economy, but requires correct fluid on schedule and must not be used for sustained heavy work.
The only buyer who should not choose a 5MT is one who genuinely cannot drive a manual. If you can drive a manual, choose the 5MT.
Kei trucks with this transmission
Suzuki Carry DA63T
2002-05 – 2013-08
Suzuki Carry DA62T
2001-09 – 2002-04
Suzuki Carry DA16T
2013-08 – present
Honda Acty HA6
1999-05 – 2009-12
Honda Acty HA7
1999-05 – 2009-12
Honda Acty HA8
2009-12 – 2021-04
Honda Acty HA9
2009-12 – 2021-04
Daihatsu Hijet S200P
1999-01 – 2004-12
Daihatsu Hijet S210P
1999-01 – 2007-12
Subaru Sambar TT1
1999-02 – 2012-09
Subaru Sambar TT2
1999-02 – 2012-09