Overview Product Description Product Videos Custom Field Year 2003 Make Mercury Model Mountaineer Engine 4.0L Engine Parts Engine Block Components Product Reviews Write a Review Write a Review × ET Components Cylinder Head Assembly - 2003 Mercury Mountaineer 4.0L (CH1090R.A10) Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments