The Mitsubishi Diamante is a midsize car built from 1992 to 2026. Most were assembled in Australia — 80.6% of those on record. Engines offered: V6. Worth buying? It holds up well, with the usual caveat about model years at 4.0/5 — and the year you pick matters far more than the badge (best and worst years →).
What the Diamante is
The Mitsubishi Diamante is a midsize car that Mitsubishi built from 1992 to 2026 — 35 model years. It has been offered with V6 power. Its closest siblings in the Mitsubishi range: Outlander, Eclipse, Mirage.
Where the Diamante is built
A badge says where the company is registered; the VIN says where the car was bolted together. We counted the first three characters — the manufacturer identifier — across 346 Diamantes on record.
| Assembled in | Share | VIN starts with | Years seen |
|---|---|---|---|
| Australia | 6MM | 1993-2004 | |
| Japan | JA3 | 1992-1995 |
Check your own: the first three characters of a Mitsubishi VIN decide which of these 1 lines your Diamante belongs to. What every character in a Diamante VIN means →
Got the full 17 characters? A free VIN check on a Mitsubishi Diamante adds what the decoder can't see: open recalls, theft and total-loss records, and the safety ratings for that exact build.
Mitsubishi Diamante tire size, oil type & owner specs
The fitment Diamante owners look up most — tires, wheels, oil and batteries. Exact wheel and tire sizes decode from your VIN or the driver's door-jamb placard; the universal items are listed below.
Exact tire, wheel, oil grade, capacity and battery group are added per trim and model year — decode your VIN above for the factory fitment. Universal items shown as-is.
What engines does the Mitsubishi Diamante have? Power & range
The Mitsubishi Diamante is offered with 1 powertrain — 3.5L 6-cyl. Here's the lineup by engine, transmission and drivetrain — 1 for the Mitsubishi Diamante, against one or two on most rivals.
| Engine | Displacement | Transmission | Drive | Fuel |
|---|---|---|---|---|
| V6 | 3.5L · 6-cyl | Automatic 4-spd | FWD | Premium |
Horsepower, torque and fuel-tank size decode from your VIN — exact figures vary by engine and trim.
Source: EPA fueleconomy.gov (engines, drivetrain, range, charge time). Horsepower & torque from NHTSA vPIC on VIN decode.
The Diamante by the numbers
What the federal and market records say about the Mitsubishi Diamante. Each line opens the full breakdown by year.
| Topic | Diamante | Detail |
|---|---|---|
| Recalls | 23 campaigns | NHTSA, all years |
| Owner complaints | 549 filed | What breaks and when |
| Reliability | 4.0 / 5 | Best and worst years |
Frequently asked questions
What kind of car is the Mitsubishi Diamante?
The Diamante is a midsize car, built from 1992 to 2026. Engines offered: V6.
Where is the Mitsubishi Diamante made?
Across 346 cars in our records the split is: Australia (80.6%), Japan (19.4%). The first three characters of a VIN identify the plant's manufacturer and country — that is where these shares come from, not from a press release.
What is the Mitsubishi Diamante warranty?
New models carry 5 years / 60,000 miles basic cover and 10 years / 100,000 miles on the powertrain. Worth knowing: across our complaint records the typical car reaches the halfway point of its faults at five years, so most repairs land after the basic warranty ends.
Is the Diamante reliable?
It scores 4.0/5 in our data. The honest answer depends on the year far more than the model — see the best and worst years, and when this car starts to break.
How do I check a specific Diamante?
This page describes the model; it cannot tell you whether that car has an open recall or a branded title. Run its VIN against the records — free, and matched to the exact production run.
More in Mitsubishi
| Model | Years | Recalls | Best MPG | ForCar score |
|---|---|---|---|---|
| Mitsubishi Outlander | 2003–2026 | 140 | 28 mpg | 4.0/5 |
| Mitsubishi Eclipse | 1990–2012 | 136 | 24 mpg | 3.5/5 |
| Mitsubishi Mirage | 1985–2026 | 65 | 39 mpg | 3.5/5 |
| Mitsubishi Lancer | 2002–2017 | 78 | 30 mpg | 3.5/5 |
| Mitsubishi Galant | 1985–2012 | 67 | 24 mpg | 3.5/5 |
| Mitsubishi 3000GT | 1991–1999 | 21 | 19 mpg | 4.0/5 |