Mariah Boats Diablo Boat Covers
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Custom Fit Boat Covers
Custom covers are patterned and tailored for the specific make and model of boat
![Westland Custom Boat Covers Westland Custom Boat Covers](/mall/image/coverfinder/cover_bullets/hd/1.gif)
Westland Custom Covers
Made in 10 Business Days or less
- Made for: Mariah Boats Diablo 18 Bowrider I/O
- Made for years: (1991 - 1993)
Mariah Diablo 18 Bowrider I/O 1991-1993 Custom Boat Cover by Westland
- Available Fabrics
- Sharkskin Plus
- Sharkskin Supreme SD
- Sunbrella
- Price
- $414.83
- $557.88
- $852.75
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Fits Sterndrive Engine models
- Made for: Mariah Boats Diablo 183 Bowrider O/B
- Made for years: (1993 - 1994)
Mariah Diablo 183 Bowrider O/B 1993-1994 Custom Boat Cover by Westland
- Available Fabrics
- Sharkskin Plus
- Sharkskin Supreme SD
- Sunbrella
- Price
- $451.43
- $584.37
- $866.17
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Fits Outboard Motor models
- Made for: Mariah Boats Diablo 183 Bowrider O/B
- Made for years: (1993 - 1994)
Mariah Diablo 183 Bowrider O/B 1993-1994 Custom Boat Cover by Westland
- Available Fabrics
- Sharkskin Plus
- Sharkskin Supreme
- Sunbrella
- Price
- $420.92
- $552.12
- $775.35
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Fits Outboard Motor models
![Shoretex Custom Boat Covers Shoretex Custom Boat Covers](/mall/image/coverfinder/cover_bullets/hd/2.gif)
Shoretex Custom Covers
Made in 25 Business Days or less
- Made for: Mariah Boats 183 Diablo O/B
- Made for years: (1992 - 1993)
Mariah 183 Diablo O/B 1992-1993 Custom Boat Cover by Shoretex
- Available Fabrics
- SunBurst
- Travel Tuff
- Prism
- Price
- $449.99
- $525.99
- $598.99
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Fits Outboard Motor models
Semi-Custom Fit Boat Covers
Semi-Custom covers are made by boat style to fit a variety of models
![Westland Semi-Custom Boat Covers Westland Semi-Custom Boat Covers](/mall/image/coverfinder/cover_bullets/hd/3.gif)
Westland Semi-Custom Covers
Made in 10 Business Days or less
- Fits: Euro Style V-Hull Runabout Boat 18' I/O
- Fits years: (1991 - 1993)
Mariah Diablo 1991-1993 Semi-Custom Boat Cover by Westland
- Available Fabrics
- Sharkskin Plus
- Sharkskin Supreme SD
- Sunbrella
- Price
- $305.27
- $395.48
- $595.15
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Fits Sterndrive Engine models
- Fits years: (1991 - 1993)
Mariah Diablo 1991-1993 Semi-Custom Boat Cover by Westland
- Available Fabrics
- Sharkskin Plus
- Sharkskin Supreme SD
- Sunbrella
- Price
- $309.67
- $445.17
- $601.72
- Fits: Euro Style V-Hull Runabout Boat 18' O/B O/B Motor Hood Not Included
- Fits years: (1993 - 1994)
Mariah Diablo 1993-1994 Semi-Custom Boat Cover by Westland
- Available Fabrics
- Sharkskin Plus
- Sharkskin Supreme SD
- Sunbrella
- Price
- $311.18
- $380.72
- $573.10
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Fits Outboard Motor models
- Fits years: (1993 - 1994)
Mariah Diablo 1993-1994 Semi-Custom Boat Cover by Westland
- Available Fabrics
- Sharkskin Plus
- Sharkskin Supreme SD
- Sunbrella
- Price
- $310.08
- $436.97
- $704.95
![ENDURACover Semi-Custom Boat Covers ENDURACover Semi-Custom Boat Covers](/mall/image/coverfinder/cover_bullets/hd/4.gif)
ENDURACover Semi-Custom Covers
Made in 7 Business Days or less
- Fits: Euro-style V-Hull Runabout Boat 18' I/O
- Fits years: (1991 - 1993)
Mariah Diablo 1991-1993 Semi-Custom Boat Cover by ENDURACover
- Available Fabrics
- Supreme Aqua Shield
- Sunbrella
- Price
- $339.99
- $610.99
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Fits Sterndrive Engine models
- Fits: Euro-style V-Hull Runabout Boat 18' O/B
- Fits years: (1993 - 1994)
Mariah Diablo 1993-1994 Semi-Custom Boat Cover by ENDURACover
- Available Fabrics
- Supreme Aqua Shield
- Sunbrella
- Price
- $344.99
- $622.99
Choose Cover
Fits Outboard Motor models
- Material: 100% polyester
- Weight: 6.5 oz. polyester, 450 denier
- Warranty: 5 year limited warranty
- Material: 100% polyester
- Weight: Solution-dyed polyester, 600 denier
- Warranty: 7 year limited warranty
- Material: 100% acrylic
- Weight: 9.25 oz. marine acrylic
- Warranty: 10 year limited warranty
- Material: 100% polyester
- Weight: 6.5 oz. marine polyester duck
- Warranty: 5 year limited warranty
- Material: 100% polyester
- Weight: 13 oz. coated marine polyester
- Warranty: 5 year limited warranty
- Material: 100% polyester
- Weight: 9 oz. two-ply double coated marine polyester
- Warranty: 5 year limited warranty
- Material: 100% Polyester
- Weight: 7 oz. solution-dyed Polyester, 600 denier
- Warranty: 7 year warranty
- Material: 100% acrylic
- Weight: 9.25 oz. marine acrylic
- Warranty: 10 year limited warranty
Custom Covers vs. Semi-Custom Covers
![](https://www.iboatsimages.com/mall/image/coverfinder/help/customVSemi.png)
- Custom Boat Covers are patterned and tailored for the specific make, model, and year of the boat.
- Semi-Custom Boat Covers are made by boat style to fit a variety of models.
Engine Type & Boat Covers
![](https://www.iboatsimages.com/mall/image/coverfinder/help/engine_type.png)
- Outboard (O/B) - Removable engine mounted to the transom of the boat.
- Sterndrive or Inboard/Outdrive (I/O) - Permanent engine mounted on stern of boat with portion of engine (the outdrive) in the water.
- Inboard (I/B) - Permanent engine mounted in the center or stern of boat with only the propeller shaft exposed to water. Inboards should use the I/O cover.
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