Parts for your 2002 Mazda Premacy-Centre bearing

2002 Mazda Premacy centre-bearing — is it a thing?

Short answer: not on the Aussie or Kiwi 2002 Mazda Premacy. Factory documentation for the CP-series Premacy (1999–2005) shows the local-spec cars are front-wheel drive only, so there’s no two-piece tailshaft and no centre-bearing to support it. This is confirmed by the Mazda Premacy CP Workshop Manual (Driveline/Axle sections) and the Mazda Electronic Parts Catalogue (AU/NZ listings), which don’t list a propeller shaft centre support for these models. Some Japan-only CP8W 4WD variants did use a propeller shaft with a centre support bearing, but that drivetrain wasn’t sold new in Australia or New Zealand.

Why isn’t a centre-bearing used? A centre-bearing supports a long, two-piece tailshaft on rear- or all-wheel drive vehicles. The 2002 Premacy sold locally is front-wheel drive, so the engine and transaxle sit up front driving short left and right driveshafts—no long prop shaft running down the car, and therefore no need for a centre-bearing.

What can get mixed up with a “centre-bearing” on these? There’s a right-hand intermediate driveshaft support bearing mounted to a bracket on the engine/transaxle. It’s not called a centre-bearing, but some owners describe it that way. If there’s a humming or droning that rises with road speed, it’s worth checking this support bearing, along with CV joints and wheel bearings.

• Typical checks a technician will make: play or roughness in the RH intermediate shaft support bearing, CV boot condition and joint noise, front wheel bearing free-play, engine and trans mounts (vibration under load).
• Service advice: there’s no scheduled replacement interval for the intermediate support bearing—replace on condition. If the bracket rubber or bearing feels gritty or loose, or there’s noticeable vibration on acceleration, it’s time to swap it out.
• Parts note: use quality bearings and renew circlips and seals as needed to avoid repeats. An alignment check after any driveline work helps keep things smooth and tyre wear in check.

If a 4WD import Premacy has snuck into the fleet, it may have a two-piece prop shaft with a true centre support bearing. In that special case, play, torn rubber, or a thump on take-off points to a worn centre support—replace the carrier assembly and recheck prop shaft balance and U-joints.

FAQs

Does a 2002 Mazda Premacy have a centre-bearing?
For Australian and New Zealand-delivered cars, no. They’re front-wheel drive and don’t use a two-piece tailshaft, so there’s no centre-bearing in the driveline. Mazda’s CP-series Workshop Manual and AU/NZ parts listings back this up.

What’s causing a humming noise on my Premacy if it’s not the centre-bearing?
Common culprits are the right-hand intermediate driveshaft support bearing, front wheel bearings, or outer CV joints. A tech will spin-test the wheels, feel for roughness at the support bearing, and check CV boots and play to pinpoint the issue.

Is there any bearing on the driveshafts that needs servicing?
Yes—the RH intermediate driveshaft has a support bearing. It’s not a regular service item but should be replaced if noisy or loose. When it’s out, it’s smart to renew the shaft seal and circlip, and verify mount condition to keep vibrations at bay.