The Enginetech TT345 is a Timing Chain Tensioner for 1990-2000 Ford, Mazda 4.0L 245ci V6 engines. This is a direct fit chain tensioner designed to maintain correct chain tension and prevent slack-related timing deviation.
| Part Number | TT345 |
| Product Type | Timing Chain Tensioner |
| Engine | 4.0L 245ci V6 |
| Year Range | 1990-2000 |
| Makes | Ford, Mazda |
| Country of Origin | US |
| Weight | 0.25 lbs |
| UPC | 707473644099 |
| OEM Cross-Refs | Cloyes:6-5345, Melling:BT345, FEL-PRO:222-1345CT, PCI:T69345 |
Vehicle Fitment
- 1990-1997 Ford Aerostar 4.0L 245ci V6 OHV [VIN:X]
- 1990-2000 Ford Ranger 4.0L 245ci V6 OHV [VIN:X]
- 1991-1994 Mazda Navajo 4.0L 245ci V6 OHV [VIN:X]
- 1991-2000 Ford Explorer 4.0L 245ci V6 OHV [VIN:X]
- 1994-2000 Mazda B4000 4.0L 245ci V6 OHV [VIN:X]
Enginetech timing chain tensioners are precision-fit replacement components engineered to maintain correct chain tension throughout the service life of the engine. Built on over 40 years of engine rebuilding expertise, each tensioner is designed around the specific engine family it serves - hydraulic preload, ratchet geometry, and housing dimensions are matched to the tensioner bore and chain system of that exact application. Proper tensioner condition is critical to preventing chain slack, timing deviation, and premature wear on guides and sprockets. Enginetech documents every tensioner with clear application-specific notes so you know exactly what you are receiving and how it applies before the engine is on the stand. Always verify fitment by year, make, model, VIN code, and engine displacement before ordering - multiple tensioner configurations often exist for the same vehicle nameplate.
