Quinton Hazell Timing Belt Idler Pulley • QTT333

Quinton Hazell QTT333 Timing Belt Idler Pulley

Replacement Quinton Hazell timing belt idler / guide pulley for Mazda MX-5 MK1/NA and MK2/NB/NB-FL 1.6 and 1.8 petrol models listed in the compatibility table.

The timing belt idler pulley guides the timing belt along its correct path between the engine's timing components. QTT333 is designed as an aftermarket replacement for the original component.

A worn idler bearing can develop noise, roughness or excessive play and may compromise correct timing-belt operation. Because access requires removal of the timing covers and timing belt, the idler pulley is commonly renewed as part of a complete timing-belt service.

• Part type: Timing belt idler / guide pulley
• Location: Engine timing-belt system
• Function: Guides and supports the timing belt
• Published pulley diameter: Approx. 52 mm
• Published pulley width: Approx. 25 mm
• Quantity per vehicle: 1
• Quantity supplied: 1 idler pulley
• Brand: Quinton Hazell
• Part No.: QTT333
• Designed as an aftermarket replacement for the original part on the applications listed

Fitment advice: QTT333 is the timing belt idler / guide pulley. It should not be confused with the separate timing belt tensioner pulley. Fitment is limited to the confirmed Mazda MX-5 applications shown in the compatibility table. For imported, modified or previously repaired cars, matching the part number or component style on the part being replaced is recommended.

Other items to consider: Timing belt, timing belt tensioner pulley, water pump, camshaft seals, crankshaft seal and auxiliary drive belts.

Useful tools / consumables: Suitable socket set, torque wrench, crankshaft holding tools where required and appropriate engine timing tools.

Difficulty guide: DIY Difficulty: Advanced. Replacement forms part of the engine timing system and requires correct timing-belt removal, installation and engine timing procedures.

Why Quinton Hazell? Quinton Hazell is a long-established automotive aftermarket brand, offering dependable replacement parts for servicing and repair. Its components are designed as practical aftermarket replacements for the original parts on the applications listed.

What’s in the box: 1 × Quinton Hazell QTT333 timing belt idler pulley.

Installation notes: Inspect the complete timing-belt system before installation. The timing belt and associated tensioner components should be checked for wear and replaced as necessary. Correct engine timing and manufacturer-specified fastener torques must be observed during reassembly.