Performance Drive Belt Kit for Scion tC (2005-2010) 2.4L

Heavy-Duty Drive Belt Kit for 2005-2010 Scion tC (ANT10)

What it Does: The Performance Drive Belt Kit restores calibrated tension to the accessory drive system on the 2005-2010 Scion tC to eliminate belt slip, bearing whine, and parasitic voltage drops across the alternator and water pump.

The Stock Scion tC Belt System Weakness

The factory accessory drive on the ANT10 chassis relies on a hydraulic damper assembly that degrades significantly with age and thermal cycling. Over time, internal fluid leakage and spring fatigue in the factory tensioner cause harmonic flutter along the belt path. This loss of constant load creates intermittent slip on the 2AZ-FE crank pulley, causing belt rib glazing, high-RPM squeal, and uneven bearing wear on driven accessories like the alternator and air conditioning compressor.

The Engineering Solution

This direct-replacement kit addresses accessory drive decay with a reinforced mechanical tensioner and a heavy-duty multi-rib belt. The replacement tensioner assembly matches OEM 166200W110 geometry, featuring an internal torsional spring with high-dampening capabilities to neutralize crank vibrations. Paired with a high-strength, heat-stabilized EPDM 7PK1940 serpentine belt, this system resists stretching, rib cracking, and thermal degradation under aggressive engine loads.

What's Included

• 1 Accessory Drive Belt Tensioner (Replaces 166200W110)
• 1 Heavy-Duty 7-Rib Serpentine Belt (7PK1940)

Technical Specifications

Compatibility

• 2005-2010 Scion tC Base 2.4L I4 (2AZ-FE)
• 2007-2008 Scion tC Spec 2.4L I4 (2AZ-FE)

Frequently Asked Questions & Fitment Warnings

Does this fit the ANT10 tC?

Yes, this is a direct fit for the 2005-2010 Scion tC equipped with the 2AZ-FE 2.4L engine. It does not fit second-generation (AGT20) models powered by the 2.5L 2AR-FE engine.

Do I need a special tool to compress the tensioner during install?

No specialty tool is required; the tensioner arm features a cast 19mm hex lug that allows standard hand tools to rotate the assembly clockwise and relieve belt tension.

The Scion JDM Caliber

Keep your 2AZ-FE running smoothly at redline without losing accessory power or suffering from high-RPM belt walk on demanding street runs.