Parts for your 2009 Mitsubishi Lancer-Drive belt

2009 Mitsubishi Lancer drive-belt: what’s fitted and how to look after it

Yes, a drive-belt is used on the 2009 Mitsubishi Lancer. Technical references such as the Mitsubishi Motors Lancer Service Manual (2008–2010, Engine and Air Conditioning sections), plus Australian parts catalogues from Gates and Dayco, list accessory (serpentine) and A/C belts for 4B11/4B12 engines. Those same sources note the engine uses a timing chain (not a timing belt), while the external drive-belt(s) run accessories like the alternator and A/C compressor, and the power steering pump where fitted.

The drive-belt on a 2009 Lancer quietly gets on with the job of spinning key accessories. It powers the alternator to keep the battery charged and the electrics happy, runs the air-con compressor for cool air on hot days, and—on models with hydraulic assistance—drives the power steering pump. Some engines use a main multi-rib belt with an automatic tensioner, plus a separate “stretch-fit” belt for the A/C. Either way, if that belt slips or wears out, the warning lights, heavy steering, or warm air from the vents will give the game away.

As part of routine servicing, it’s smart to inspect the belt at every service interval. Look for fraying, rib separation, glazing, missing chunks, or contamination from oil or coolant. Modern EPDM belts often don’t crack like the old ones, instead they lose rib material. A belt wear gauge or a close look at rib depth can be more telling than just hunting for cracks.

Recommended replacement timing varies with use and climate, but a practical rule of thumb for the Lancer is to replace the accessory belt around 90,000–100,000 km or at about 5–6 years, sooner if there’s noise on cold starts, visible wear, or the battery light flickers. If the A/C uses a stretch-fit belt, it’s single-use—cut it off and install a new one with the proper tool, don’t try to refit the old belt.

Whenever the belt is off, spin the idler and tensioner pulleys. Any roughness, wobble, or noise means they’re due as well. An ageing tensioner can cause squeal and rapid belt wear. Belt routing decals under the bonnet are handy, otherwise, take a quick photo before removal. A clean, correctly tensioned belt keeps the Lancer’s electrics stable, steering light, and cabin cool—exactly how owners in Australia and New Zealand like it.

• Watch for: squeals on start-up, heavy steering, battery warning lamp, A/C not cooling, or visible belt damage.
• Best practice: inspect every service, replace belt and any noisy pulleys together for a quieter, longer-lasting fix.

Does the 2009 Lancer have a timing belt or a chain?

It uses a timing chain for cam drive, not a timing belt. The external accessory drive-belt(s) only run components like the alternator, A/C compressor and, where fitted, the power steering pump.

How often should the drive-belt be replaced?

Inspect at every service and plan on replacement around 90,000–100,000 km or 5–6 years. High heat, stop–start use, or any noise or wear means it should be done sooner. Follow the service manual for your exact engine and equipment.

Are there one or two belts on this model?

Many 2009 Lancers have a main multi-rib belt plus a separate stretch-fit A/C belt. The A/C belt is single-use and needs the correct installation method and tool. Check the under-bonnet label or service information for your specific engine.