Parts for your 2017 Toyota Prius-Centre bearing

2017 Toyota Prius centre-bearing — what owners should know

The 2017 Toyota Prius (ZVW50/ZVW51) does not use a centre-bearing. Toyota’s own technical literature describes the model as front‑wheel drive with an integrated hybrid transaxle (e‑CVT) and front drive shafts only, so there’s no two‑piece propeller shaft to support with a centre-bearing. This is detailed in the Toyota New Car Features (NCF) for Prius ZVW50 series and the Toyota Repair Manual (RM) sections covering the drivetrain and drive shafts. Engineering papers on the fourth‑generation hybrid system layout (e.g., SAE technical publications on the Gen4 Prius transaxle) also confirm the FWD transaxle configuration without a tailshaft. Even the later AWD‑e Prius variant uses an independent electric rear motor with no mechanical prop shaft, hence still no centre-bearing.

A centre-bearing (often called a tailshaft centre support bearing) is a part found on many rear‑wheel drive or long wheelbase vehicles that run a two‑piece propeller shaft. Its job is to hold the shaft steady at the midpoint, manage angles, and reduce vibration under load. The 2017 Prius simply doesn’t need one because:

• It’s built on a FWD layout with an e‑CVT transaxle and short front drive shafts.
• There’s no rear differential connected by a mechanical propeller shaft.
• The drivetrain packaging (as outlined in Toyota NCF and RM) eliminates the requirement for a prop shaft support bearing.

If a workshop mentions a “centre-bearing” on a Prius, they’re likely mixing up terms. Some FWD cars use an intermediate right‑hand drive shaft with a support bearing, but Toyota documents for the 2017 Prius focus on front drive shafts with CV joints and do not list a tailshaft centre-bearing. For owners hearing humming, vibration, or droning at highway speeds, the usual suspects on a Prius are front wheel bearings, CV joints, tyres, or alignment rather than a non‑existent centre-bearing.

For servicing, there’s nothing to replace or maintain regarding a centre-bearing on this model. Instead, a sensible approach is to keep an eye on:

• CV boots and joints for splits, grease leaks, or play.
• Front wheel bearings if there’s speed‑dependent humming.
• Tyre condition, pressures, and rotation to prevent noise and vibration.

Technical references: Toyota New Car Features (NCF) for Prius ZVW50 series (drivetrain and hybrid transaxle overview), Toyota Repair Manual (RM), ZVW50 series (front drive shaft/CV joint sections, no propeller shaft section), SAE papers describing the Gen4 Prius hybrid transaxle and FWD layout.

FAQs

Does a 2017 Toyota Prius have a centre-bearing?
No. The 2017 Prius is a front‑wheel drive hybrid with an integrated transaxle and no two‑piece tailshaft, so there’s no centre-bearing fitted from factory.

Why don’t FWD hybrids like the Prius use a centre-bearing?
A centre-bearing supports a long, two‑piece propeller shaft used in many RWD or 4WD setups. The Prius uses short front drive shafts from a transaxle, so there’s nothing mid‑shaft to support.

What could be mistaken for a “centre-bearing” on a Prius?
Some people confuse the idea with other rotating parts. On a Prius, noises more often come from front wheel bearings, CV joints, or tyres. There’s no tailshaft support bearing to replace on this model.