2.0L Zetec adjustable camshaft gear provides +/-10 degrees change in camshaft timing. Lightweight aluminum design. Hard anodized outer half for long life. Blue anodized inner half with Ford logo. Stainless steel bolts and washers included. Bolt on installation when used on intake and/or exhaust cam of Focus ZX3 and Escape 2.0L Zetec engine and intake cam of Escort ZX2 2.0L Zetec engine. Requires use of cam gear adapter when used on exhaust cam of Escort ZX2 2.0L Zetec engine. A must for any 2.0L camshaft work.