2017 OWNERS MANUAL / 346
Be sure all fasteners used are approved and rated for marine use. 
Most fasteners used on MasterCraft boats are stainless steel or 
specially coated to resist corrosion. 
 
 
 
Use of improper parts may cause component or engine failure. 
Such failure may result in death or serious injury!
Exposure to salt water will cause corrosion leading to significant 
damage to stainless steel, chrome and anodized aluminum parts. 
Failure to thoroughly rinse salt water from all hardware, and to ap-
ply protective oil after each exposure to salt water, will accelerate 
the corrosion of hardware and will void your warranty.
Exposure to salt water will cause corrosion leading to significant 
damage to stainless steel, chrome and anodized aluminum parts. 
Failure to thoroughly rinse salt water from all hardware, and to apply 
protective oil after each exposure to salt water, will accelerate the 
corrosion of hardware and will void your warranty.
MARINE GROWTH
If accelerated marine growth is a problem in the area in which the 
boat will generally be operated, an anti-fouling bottom paint may 
be necessary to slow growth while protecting the gel coat.  Before 
selecting a bottom paint, talk with other boaters and an authorized  
MasterCraft dealer’s service department to determine the product 
that works best in the area. Many local variables may also aect 
the selection of paint. Be sure to follow the paint manufacturer’s 
directions exactly.
SALT WATER CORROSION
MasterCraft boats have been designed for operation in fresh 
water unless equipped with the Salt Water Package. If operating a 
fresh-water model temporarily in salt, polluted or brackish water, 
thoroughly flush the boat with fresh water as soon as possible after-
ward. The entire engine cooling system should be flushed with fresh 
water for at least ten (10) minutes after each use in such waters. Do 
not operate boats continuously in saltwater unless equipped with a 
closed cooling system to preserve engine life.  
 
SALTWATER CARE &  
MAINTENANCE 
Saltwater or brackish water can deteriorate the condition of a boat 
much faster than freshwater. To maintain the condition, appearance 
and functionality of boats used in salt water: 
8. Flush the engine with fresh water in accordance with the Ilmor 
Engine Owner’s Manual (10 minutes minimum).
9. Rinse the boat with fresh water after each use in salt water:
•  Bilge
•  Hull and deck including all underwater gear
•  Upholstery 
•  Carpet
•  If a boat has removable floor covering it should be removed 
for drying
10.  Rinse metal components with fresh water and wipe down with 
WD-40:
•  Aluminum dash plates
•  Steering wheel
•  Tower components
•  Engine
•  Hand rails
•  Cleats
•  Glovebox 
•  Walk-thru door
•  Exposed Seat frames
•  Windshield frame and stanchions
11. Spray motor mounts with a corrosion inhibitor at least once a 
month.
12.  Inspect anodes and replace when they reduce to 50 percent of 
their original size.
STAINLESS STEEL AND CHROME/
ANODIZED ALUMINUM 
Stainless steel, chrome-plated and anodized aluminum parts are 
not totally resistant to corrosion. Occasional cleaning and polishing 
with a marine chrome-and-stainless polish will maintain and extend 
the life of these parts. In salt water areas, it is imperative that you 
thoroughly rinse all hardware with fresh water and apply a light 
coating of protective oil to enhance the appearance after each use.