Estimates last updated January 28, 2026

2009 Mercury Mountaineer Timing Chain Tensioner Replacement Cost

The average cost for a 2009 Mercury Mountaineer Timing Chain Tensioner Replacement is between $470 and $550.

• Labor costs are estimated between $171 and $251 while parts are typically priced around $299.
• This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed.
• For a more accurate estimate based on your location, use our Fair Price Estimator below.