Home Engine Systems Engine Parts Trim & Tilt Reservoirs Trim & Tilt Reservoir Kit – Mercruiser Sierra International Trim & Tilt Reservoir Kit – Mercruiser $70.79 Trim & Tilt Reservoir Kit – Mercruiser quantity Add to cart Product Details Product Details Replaces: Mercruiser 18525, 18525A1, 17646. Includes: Reservoir Cap O-ring Mounting Screw