Parts for your 2014 Mazda Premacy-Thrust bearing

2014 Mazda Premacy thrust bearing — what it is and when to sort it

Technical note: Referencing the Mazda5/Premacy (2010–2015) Workshop Manual and the Mazda Electronic Parts Catalogue (EPC), the 2014 Mazda Premacy does indeed use thrust bearings. The MZR petrol engines fitted to this model have a crankshaft thrust bearing integrated into the main bearing set (commonly at the No. 3 journal) to control crank end-float. Manual-transmission variants (C66/C56 gearboxes) also use a clutch release bearing, often casually called a thrust bearing. Automatic variants don’t have a clutch release bearing, but the engine’s crankshaft thrust bearing is still present and relevant.

On this model, the thrust bearing’s core job is to keep axial movement of the crankshaft in check. It takes the fore–aft loads created when the clutch is pressed or when the driveline pushes back on the engine, protecting the crank, bearings, and gearbox from unpleasant wear. If the vehicle is a manual, the release (thrust) bearing adds another layer—allowing smooth, low-friction contact with the clutch pressure plate fingers so pedal effort stays light and gear changes feel tidy.

Service-wise, the engine’s thrust bearing isn’t a routine replacement item, it’s inspected during bottom-end work or if there are signs of excess crank end-float. Red flags include noticeable fore–aft movement of the crank pulley, a change in idle note when the clutch is depressed, or metal glitter in the oil. Proper diagnosis uses a dial gauge against the crank to confirm clearance against the workshop spec. If it’s out, the bearing set is replaced and oil clearances rechecked—this is engine-out/strip work and best left to a pro.

For manual Premacy models, the clutch release (thrust) bearing is a wear component and should be replaced any time the clutch is out. It’s smart practice to fit a full clutch kit (disc, pressure plate, release bearing, and pilot bearing/bush if applicable), check the fork and pivot for wear, lightly grease the input shaft splines and guide tube with the specified high-temp grease, and bleed the hydraulics. Driving habits matter too—avoid resting a foot on the pedal at lights and don’t slip the clutch on hills. Owners can expect a quality release bearing to go the distance of a full clutch life under normal Aussie/Kiwi conditions.

• Engine thrust bearing: inspect during engine bottom-end work or if end-float symptoms appear.
• Manual models: always renew the release bearing with the clutch, check related hardware.

FAQs

Does a 2014 Mazda Premacy have a thrust bearing?
Yes. All engines in this model use a crankshaft thrust bearing as part of the main bearing set. If it’s a manual, there’s also a clutch release (thrust) bearing. Automatics don’t have the clutch release bearing, but the engine thrust bearing is still there doing important work.

What are the signs a thrust/release bearing needs attention on a 2014 Premacy?
For the engine thrust bearing: changes in idle when the clutch is pressed, end-float movement at the crank pulley, or metallic debris in the oil. For the clutch release bearing: chirping or growling that changes with pedal pressure, a rough-feeling pedal, or noisy engagement. Any of these warrant a proper inspection.

Should the thrust bearing be replaced during a clutch job?
On manual models, absolutely—fit the new release bearing with every clutch kit. It’s inexpensive insurance against pulling the gearbox a second time. While you’re there, inspect the fork, pivot, and guide tube, and bleed the hydraulics for a clean, light pedal feel.