Parts for your 2020 Subaru Impreza-Drive belt

2020 Subaru Impreza Drive Belt — What it does, and when to replace it

Yes, the 2020 Subaru Impreza uses a drive belt. It’s a single serpentine belt on the FB20 2.0L engine that runs key accessories like the alternator and A/C compressor (and, on this engine family, the water pump is belt-driven too). Subaru moved to a timing chain for cam drive on the FB-series engines, so there’s no timing belt to worry about — but the accessory drive belt still needs periodic inspection and replacement. This is confirmed in the 2020 Impreza Owner’s Manual under Maintenance and service (checking the drive belt), and in the Subaru Service Manual (FB20 Engine > Mechanical > V-belt) which details the belt and automatic tensioner layout.

In everyday terms, that belt keeps the battery charging, the cabin cool, and coolant circulating. If it slips or breaks, the alternator stops charging and the engine can overheat quickly. That’s why belt condition is part of routine servicing.

Recommended care for Aussie and Kiwi owners is simple: have the drive belt inspected at every scheduled service. On vehicles that see lots of short trips, hot weather, or dust, be a bit more vigilant. Modern EPDM belts don’t always show deep cracks before they’re tired