Parts for your 2013 Mazda Bt-50-Centre bearing

2013 Mazda BT-50 centre-bearing — use, purpose, and service advice

Based on recognised technical references, the 2013 Mazda BT-50 (UP/UR series) generally uses a centre support bearing because most models are fitted with a two-piece propeller shaft. The Mazda BT-50 Workshop Manual (Driveline/Propeller Shaft), the Ford Ranger PX Workshop Manual (platform twin), Mazda’s Electronic Parts Catalogue (EPC), and major driveline catalogues list a centre support bearing for 2011–2016 BT-50 variants. A limited number of short-wheelbase 4x2 single-cab models may run a one-piece tailshaft and therefore won’t have a centre bearing. For most dual-cab, Freestyle cab, and 4x4 trims, the centre-bearing is fitted and relevant.

• Mazda BT-50 (UP/UR, 2011–) Workshop Manual — Driveline/Propeller Shaft
• Ford Ranger PX (2011–) Workshop Manual — Driveline/Propeller Shaft
• Mazda Electronic Parts Catalogue (EPC) — centre support bearing listings for BT-50 UP/UR
• Major aftermarket driveline catalogues (e.g., Hardy Spicer, GMB) listing BT-50 2011– centre-bearing applications

The centre-bearing’s job on a two-piece tailshaft BT-50 is to support the shaft in the middle, keeping everything running straight and smooth under load. It helps control driveline angles, reduces vibration, and shares the work between the gearbox end and the diff. That matters on utes like the BT-50 which have longer wheelbases and see plenty of towing, corrugations, and off‑road work.

When the rubber support or bearing wears, owners often notice a shudder on take-off, a droning or rumbling at road speed, or a clunk when getting on and off the throttle. Left too long, that extra movement can accelerate uni joint wear and even stress the gearbox mount. During routine servicing, it’s smart to check the centre-bearing bracket, the rubber isolator, and the bearing play, plus look for cracking, perishing, or signs the shaft is touching the safety loop.

Replacement is straightforward workshop work but benefits from care: mark the tailshaft orientation before removal, support the shaft to avoid overextending the slip joint, and torque the bracket fasteners to spec from the manual. It’s common to replace the centre-bearing together with any tired uni joints and then have the shaft balanced. Aftermarket and OE-quality bearings are available, a quality unit copes better with Aussie and Kiwi conditions. If the vehicle’s lifted or regularly tows, confirm driveline angles and, where applicable, shim/align the centre-bearing bracket so the shaft runs true.

There’s no fixed replacement interval — condition and use dictate life. A well-driven BT-50 can see well over 150,000 km from a centre-bearing, but heavy loads, lifts, and rough roads shorten that. If there’s vibration on acceleration, a low-speed shudder, or a mid-cabin rumble that changes with throttle, it’s time to book an inspection.

Popular questions about the 2013 Mazda BT-50 centre-bearing

Does a 2013 Mazda BT-50 have a centre-bearing?
Most do. Dual-cab and 4x4 models generally run a two-piece tailshaft with a centre support bearing. Some short-wheelbase 4x2 single cabs use a one-piece shaft and won’t have one. A quick look under the ute will tell the story — if there’s a support bracket and rubber-mounted bearing mid-way, it’s fitted.

What are the common signs the centre-bearing is failing?
Shudder on take-off, a droning or rumbling at certain speeds, and clunks on throttle changes are the usual giveaways. You might also spot a sagging rubber support or see the shaft contacting the loop. Address it early to prevent extra wear on uni joints and mounts.

Is there a set service interval for the BT-50 centre-bearing?
No set interval. Inspect it at each service, especially if the vehicle tows, runs bigger tyres, or has a lift. Replace when noise, vibration, or rubber deterioration shows up, and consider balancing the tailshaft after the job.