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The short version
- A clean Terraza wheel bearing row for the front only exists for 2007, part 513236. Earlier 2005-2006 fronts need matching by old part or VIN.
- The rear splits by flange shape: a 4-hole rectangular flange takes 512309, while a 3-hole triangular flange is the family number 512308 shared across the U-body chart.
- The Terraza’s platform sibling, the Pontiac Montana SV6, used 513199 or 513179 up front in 2005 and moved to 513236 for 2006, a useful reference point when matching an early Terraza.
- Count the flange holes on the rear hub before ordering. The split is the same trap that shows up on the Montana SV6.
GM’s U-body vans went through a late-life redesign, and the Terraza only joined the lineup for the tail end of it. That makes the early years thin on documented parts.
Terraza wheel bearing numbers at a glance
The catalogs carry a solid Terraza wheel bearing front number for the 2007 model year only. For 2005 and 2006, there is no dedicated Terraza row.
The rear hub is documented across the run, but it splits by flange shape rather than by year.
Terraza wheel bearing part numbers
| Years | Detail | Number |
|---|---|---|
| 2007 | Front hub | 513236 check price |
| 2005-2006 | Front hub | match old part or VIN |
| 2005-2007 | Rear hub, 4-hole rectangular flange | 512309 check price |
| 2005-2007 | Rear hub, 3-hole triangular flange, U-body family number | 512308 check price |
Every model year this chart resolves: 2005, 2006 and 2007.
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.
The Terraza rear hub splits by the shape of the mounting flange, not by year or trim. A 4-hole rectangular flange takes 512309, and a 3-hole triangular flange takes 512308, the same family number used across the U-body chart.
Count the bolt holes and note the shape before ordering. This is the identical split that shows up on the platform-sibling Montana SV6, so the same care applies there too.
Terraza wheel bearing family: the U-body vans
The Terraza shares its platform with the Pontiac Montana, specifically the later SV6 body style, and with the earlier Chevrolet Venture from the same GM van program.
For a 2005-2006 Terraza front, where no clean row exists, the Montana SV6’s 513199 or 513179 for 2005 and 513236 from 2006 is the closest documented reference. Match the old part or confirm by VIN rather than guessing which one applies.
Van duty and wear
A minivan front bearing carries steady static load from passengers and cargo, and short trips with a lot of turning add wear that highway miles do not. The Terraza’s brief production run means fewer used-parts sources than its Venture predecessor.
That makes matching the old part directly, rather than guessing from a parts counter listing, the more reliable route for the undocumented early years.
Diagnosing a Terraza wheel bearing
- Identify the model year first. 2007 has a clean front row, 2005-2006 does not.
- Listen for a hum that rises with speed. A worn Terraza wheel bearing gets louder as the van picks up speed.
- Check for noise changes in turns. A bad bearing typically gets louder turning away from the worn side.
- Inspect the rear flange shape before ordering. Count the holes and note whether the flange is triangular or rectangular.
- Rock the wheel at twelve and six. Play at the hub points to bearing wear rather than a suspension component.
The full routine is on the checking page.
Common questions
What is the Terraza wheel bearing part number for the front?
513236 for 2007. For 2005-2006, match the old part or confirm by VIN, since no clean row exists for those years.
How do I know which rear hub my Terraza needs?
Count the flange holes. A 4-hole rectangular flange takes 512309, and a 3-hole triangular flange takes 512308.
Does the Montana SV6 help with an early Terraza?
Yes, as a reference. The Montana SV6 used 513199 or 513179 in 2005 and 513236 from 2006, on the same shared platform.
Why is there no clean 2005-2006 Terraza wheel bearing row?
The catalogs simply do not carry a dedicated Terraza row for those years. Match the old part or confirm the number by VIN instead.
Is the rear flange split unique to the Terraza?
No. The same 3-hole versus 4-hole split shows up on the platform-sibling Montana SV6.