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The short version
- Diamante wheel bearing coverage for 1992 through 2004: the front runs inner ball 510034 across the whole build run.
- Rear hub HA590107 covers ABS-equipped cars from 1997 through 2004.
- For 1992 through 1996 rears, the rows interleave with other models. Match the old part or the VIN.
- 510034 is not a Diamante-only number. It also turns up on the Kia Optima and Hyundai Sonata of the same era.
Mitsubishi sold the Diamante as its answer to the mid-size luxury sedan, and most drivers today have forgotten it existed. The parts bin remembers it fine. Its front ball bearing is one of the industry’s quiet cross-brand numbers, shared far outside the Mitsubishi badge.
Finding the right Diamante wheel bearing
This is the front inner ball bearing for the Diamante, 1992 through 2004. The number holds across the entire run, unlike the rear listings.
It is the same part number used on the front-drive Mitsubishi 3000GT, and it also shows up on the Kia Optima and Hyundai Sonata from the same period.
Mitsubishi Diamante wheel bearing part numbers
| Years | Detail | Number |
|---|---|---|
| 1997-2004 | Rear hub, ABS-equipped cars | HA590107 check price |
| 1992-2004 | Front inner ball, all years | 510034 check price |
| 1992-1996 | Rear, earlier cars | Match old part or VIN |
Every model year this chart resolves: 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 and 2004.
Price links lead to Amazon searches for that number. As an Amazon Associate this site earns from qualifying purchases.
Lookups run through the cross reference page.
For 1992 through 1996, the rear listings sit in rows shared with other cars from the same catalog run. No clean Diamante-only line separates them.
Match the old part number or the VIN before ordering a rear bearing for those years. Do not assume HA590107 covers a pre-1997 car.
A front number that travels outside Mitsubishi
510034 is not exclusive to the Diamante or the 3000GT. The same front inner ball also shows up on the Hyundai Sonata and the Kia Optima built in the same window.
That kind of cross-brand sharing is common in the parts world, since suppliers built to shared platforms and specs. It is worth using an axle bearing versus wheel bearing check before assuming a listing applies, since front axle hardware can look similar across brands without being interchangeable everywhere.
A forgotten sedan with familiar siblings
The Diamante shared showroom space with the Mitsubishi Galant, and buyers cross-shopping the two often assume shared parts. They do not share this front number. The wider Mitsubishi lineup from this era mixes shared and model-specific numbers depending on the component.
Diagnosing a Diamante wheel bearing
- Listen for a rising hum. A failing Diamante wheel bearing produces noise that grows louder with speed, not with engine load.
- Jack up the affected corner. Grip the tire at twelve and six o’clock and rock it to check for play.
- Spin the wheel by hand. Feel and listen for grinding or roughness through the hub.
- Rule out other noise sources. Worn tires and loose exhaust hardware often get blamed on the bearing.
- Match before buying. Confirm the old part number or the VIN, especially on 1992 through 1996 rear jobs.
Common questions
What is the Diamante wheel bearing number for the front?
510034 covers the front inner ball for 1992 through 2004, the entire model run.
Is the Diamante rear bearing the same for every year?
No. HA590107 covers ABS-equipped cars from 1997 through 2004. For 1992 through 1996, match the old part or the VIN instead.
Why does 510034 show up on a Kia or Hyundai?
Shared suppliers built similar front axle hardware across several brands in that era. The Diamante, the 3000GT, the Optima, and the Sonata all draw on the same front inner ball.
Does the Diamante share its rear bearing with the Galant?
Not on this page’s listings. The rows are separate, even though the two cars sold in the same showrooms during overlapping years.
How should a shop confirm a Diamante wheel bearing before ordering?
Run the old part number or the VIN through the cross reference lookup first. That step matters most for any rear job on a 1992 through 1996 car.