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2005 Mitsubishi diamante tire sizes & fitment

Approved tire and wheel sizes for the 2005 Mitsubishi Diamante, sourced from manufacturer fitment data and refreshed monthly.

Approved fitments

Tire size Rim size PCD (bolt pattern) Offset Load index Speed rating
205/65R15 OEM 6x15 N/A 46mm 94 S
215/60R16 OEM 6x16 N/A 46mm 95 H
215/55R17 6.5x17 N/A 48mm 93 H
225/50R17 7x17 N/A 44mm 93 V

Best by use case

Four tires, four jobs

Best all-season

Bridgestone

Turanza QuietTrack

all-season touring, UTQG 800, 80,000-mi warranty

Best budget

Bridgestone

Turanza QuietTrack

Lowest cost per mile in this size; UTQG 800

Best quiet

Bridgestone

Turanza QuietTrack

68 dB cabin noise (EU label); quietest in this size

Best winter

Bridgestone

Blizzak WS90

Dedicated winter (premium compound); ice/snow grip

See the best tires for the Mitsubishi Diamante, ranked by category →

Tire recalls & safety complaints for the Mitsubishi Diamante →

Compatible alternative sizes for 205/65R15

Sizes within the ETRTO ±3% overall-diameter safe-fit tolerance. Each row links to the size's own page.

Alternative size%Δ ODCategoryVerdict
195/75R14 0.09% winter narrower Safe
225/65R14 0.09% alternative Safe
185/65R16 -0.09% plus 1 Safe
215/50R17 -0.11% plus 2 Safe
195/55R17 -0.19% plus 2 Safe

For the full list of alternatives with comfort/handling impact, see 205/65R15 upsize options. To check an arbitrary size pair, use the tire compatibility calculator.

Check a different size against this vehicle

Type any tire size below; we'll compute its overall-diameter delta against the OEM 205/65R15 and verdict using the ETRTO ±3% rule.

Common upgrade paths

Use the plus-size calculator to evaluate any rim step against the OEM size.

How to choose tires for the 2005 mitsubishi diamante

The 2005 Mitsubishi Diamante ships from the factory on 205/65R15 tires mounted on 6x15 wheels, with a load index of 94 and a speed rating of S. 4 approved fitments are documented for this model year, allowing some flexibility between performance, comfort, and winter compounds. The Compatible alternative sizes table above lists every safe substitution within the ETRTO ±3% overall-diameter tolerance.

Tire choice on the Mitsubishi Diamante comes down to three trade-offs that matter more than brand loyalty: load index (must equal or exceed the OEM number, in this case 94), speed rating (must match or exceed the placard, here S), and UTQG treadwear (higher means longer life, lower usually means stickier rubber). Owners replacing factory tires with the same compound class, for example all-season for all-season, generally see no change in ride characteristics or fuel economy. Switching categories (performance summer to all-season touring, for example) is where the trade-offs show up at the contact patch.

For 2005 Mitsubishi Diamante owners considering a plus-size upgrade, the safer option is a Plus-1 step (one rim size up with a 10-point aspect drop and ~10 mm of additional section width). Plus-2 is technically viable on this chassis if the alternative-sizes table lists a Plus-2 candidate within tolerance, but expect a meaningful ride-harshness penalty and a tire-cost premium of 30–60% per tire relative to the OEM fitment. For winter use the recommended pattern is one width step down (e.g. from a 235 to a 225) with the aspect ratio bumped up to preserve overall diameter; narrower tires apply higher contact pressure per square inch on snow, which translates directly into shorter braking distances. The plus-size calculator evaluates any specific rim step against this OEM size.

Before purchasing, verify the tire size on the driver-door placard of your specific 2005 Mitsubishi Diamante, since trim levels and option packages can shift the original fitment from what is documented here. The placard reading is the authoritative source per FMVSS 110, and dealers will reference the placard rather than aftermarket catalogs when validating warranty claims.

NHTSA-reported issues for 2005 mitsubishi diamante

19
Complaints
2
Crashes
1
Injuries
2
Deaths

Top issue category: Tires (General)

Most reported: Tires (General) (16) · Tread / Belt (2) · Sidewall (1)

Reported across: 1993 – 2003 (9 years)

What owners described

Blowout or sudden deflation is the most common description, in 24% of these reports. Percentages are shares of the 17 reports covering every model year of the Mitsubishi Diamante that include a written account; a single report can describe more than one problem, so they do not total 100%.

Reported problemThis subjectAll tire complaintsRelative
Blowout or sudden deflation 24% 20% 1.2×
Sidewall failure 12% 15% 0.8×
Loss of control, rollover or collision 12% 8% 1.4×
Cracking or dry rot 6% 9% 0.6×
Premature or uneven wear 6% 1% 4.5×

Mileage at failure

13 of these reports state an odometer reading. The middle report is at 13,000 miles, with 8 in 10 falling between 2,000 and 198,000 miles.

In owners' own words

Verbatim excerpts from complaints filed with NHTSA about Mitsubishi Diamante. Reports are published by NHTSA as filed and are lightly cleaned here only to remove intake codes.

THE CONTACT OWNS A 2003 MITSUBISHI DIAMANTE EQUIPPED WITH COOPER CS3 TIRES (NA). WHILE DRIVING 25 MPH, AIR FROM THE VEHICLE'S FRONT DRIVER SIDE TIRE BEGAN TO BE RELEASED. THE CONTACT PULLED THE VEHICLE INTO A FUEL STATION/REPAIR SHOP WHERE THE TIRE WAS REPLACED. THE CONTACT TOOK THE VEHICLE TO THE INDEPENDENT MECHANIC THAT SOLD HIM THE TIRES. THE TIRES WERE MEASURED AND THE CONTACT WAS INFORMED THAT EACH OF THEM NEEDED TO BE REPLACED. THE DEALER WAS NOT CONTACTED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE TIRE SIZE WAS UNKNOWN. THE APPROXIMATE TIRE FAILURE MILEAGE WAS 198,000 AND THE VEHICLE FAILURE MILEAGE WAS 216,242.

NHTSA complaint 1587038 · 2003 vehicle

BRAKES OVERHEATED/CRACKED AND HAD WARPED WHEN APPLIED WHILE DRIVING. FOUND OUT THAT BRAKES WERE UNDERRATED ALONG WITH TIRES BY GOODYEAR. DID NOT KNOW ABOUT THIS UNTIL LATER. *AK CONSUMER STATES VEHICLE USES AUSTRALIAN GOODYEAR TIRES, GTA 205/65R15 H1530, TIRES WERE REPLACED WITH AMERICAN EQUIVALENT GOODYEAR TIRES AND WHILE DRIVING ON ARIZONA HIGHWAYS, TIRES WOBBLE AND BECOME UNSTABLE AFTER 15-20 MINUTES, 3 OTHER TYPES OF GOODYEAR TIRES WERE TRIED, HOWEVER ALL TYPES EXPERIENCED SAME SCENARIO, GOODYEAR HEADQUARTERS INFORMED CONSUMER THAT THE LOAD RATING OF THESE TIRES WERE ONLY 1400 POUNDS WHICH MAY BE INADEQUATE FOR THE 5000 POUND VEHICLE, THE HEAT FROM THE UNDERRATED TIRES STRESSES BRAKE ROTORS, VEHICLE HAS HAD 3 SETS OF ROTORS DUE TO OVERHEATING. *SLC

NHTSA complaint 286532 · 1993 vehicle

KUMHO 716 HP4 P215-60-16 94H DOT # 4TL1-YP71-2501 H-RATED TIRES WERE NOT THE CORRECT RATING THAT WAS SUPPOSED TO BE PUT ON VEHICLE. CONTACTED DEALER WHO WAS NOT WILLING TO DO ANYTHING.*AK CONSUMER ALSO STATES THAT CD PLAYER IS INOPERATIVE, NO RADIO CODE STORED, ARMREST COMPARTMENT HOOK LOCK BROKEN, POWER STEERING FLUID ON MINIMUM LEVEL.

NHTSA complaint 342473 · 1998 vehicle

CONSUMER STATES PURCHASED NEW TIRE ON 12/6/02. ON 12/24/02 WHILE DRIVING TIRE BLEWOUT CAUSING EXTENSIVE DAMAGE TO VEHICLE. TIRE INFO: B.F. GOODRICH PH P205/65R15 RIGHT FRONT TIRE 30 MILES ON TIRE DAMAGE TO VEHICLE TIRE NOT ORIGINAL

NHTSA complaint 387909 · 1994 vehicle

Complaints are voluntarily submitted to the NHTSA Office of Defects Investigation and are not verified by NHTSA; they represent owner-reported problems, not proven defects. Counts can be useful as a relative quality signal across comparable tires or vehicles.

Frequently asked questions

What size tires fit a 2005 Mitsubishi Diamante?
The OEM tire size for the 2005 Mitsubishi Diamante is 205/65R15 mounted on 6x15 wheels. Load index 94, speed rating S. Trim levels and option packages can shift the original fitment; confirm against your specific vehicle's driver-door placard before purchase.
Can I run a different tire size on my 2005 Mitsubishi Diamante?
Plus-sizing (larger rim, lower aspect) is possible within ±3% of the OEM overall diameter per the ETRTO safe-fit standard. The Compatible alternative sizes table on this page lists every safe option for the OEM size. Always confirm with the manufacturer or a qualified tire shop before deviating from the placard.
Where can I buy tires for my 2005 Mitsubishi Diamante?
Online tire retailers in our affiliate network carry every size documented for this vehicle. Use the Shop online buttons above to compare prices across them; variance of $20–$40 per tire is common between merchants. The <a href="/tools/tire-install-cost-calculator/">install cost calculator</a> estimates the out-the-door including mount, balance, TPMS, and disposal by state.
What is the recommended tire pressure for the 2005 Mitsubishi Diamante?
The cold-inflation pressure is printed on the driver-door placard of your specific vehicle and varies by trim, tire size, and loaded vs unloaded condition. Typical OEM front and rear pressures fall between 30 and 36 psi for passenger trims and 32–40 psi for SUV/truck variants, but the placard is the authoritative source.
Can I fit winter tires in a different size on my 2005 Mitsubishi Diamante?
Yes; the standard winter-tire fitment pattern is one width step narrower than OEM (e.g. 225 → 215) with the aspect ratio bumped up to preserve overall diameter. Narrower tires increase contact pressure on snow for better traction. The Compatible alternative sizes table includes any winter-friendly options that fall within ±3% OD for this vehicle.
How often should I rotate the tires on my 2005 Mitsubishi Diamante?
Every 5,000–7,500 miles is the typical OEM recommendation for passenger vehicles. AWD vehicles and high-torque trucks benefit from the shorter interval. Documented rotation history is also a tire-warranty prerequisite; most manufacturer treadwear claims require rotation receipts at the warranty inspection.

For broader tire questions; replacement timing, UTQG, EV-specific tires, winter swaps; see the tire FAQ.

Sources for this page

  1. Vehicle owner's manual tire & wheel placard; door-jamb placard on the Mitsubishi Diamante is the authoritative source for OEM tire size, load index, and cold-inflation pressure for your specific trim.
  2. NHTSA SaferCar; recall lookup for the 2005 Mitsubishi Diamante.
  3. ETRTO 2024 Standards Manual §2.3; overall-diameter math used for the alternative-size verdicts above.
  4. Tire & Rim Association 2025 Yearbook; load-index to maximum-load reference.

Last verified 2026-09-02.