PLEASE NOTE - Some products are not immediately available. If your order will be delayed, we will e-mail you or call you and let you know.
E-MAIL US HERE about availability and we will respond quickly! We ship same day if your order was placed by 1:00 PM EST during normal business hours BASED ON AVAILABILITY.
NEXT DAY SHIPPING NOTE - Please see our Shipping Policy SATURDAY OR SUNDAY DELIVERY IS NOT AN OPTION.

MUFFLERS - SILENCERS by Ultra Marine

Boat Mufflers

Do you need a silencer/muffler for your boat? At My Inboard Marine, we have several boat muffler options available. Everything from muffler kits to replacement mufflers. We carry aftermarket mufflers along with original factory equipment.

My Inboard Marine carries brand names including Mastercraft, Supra Moomba, and Tige’. We are confident we carry the parts you are looking for with huge discounts that overpower the competition. We make it our priority to specifically carry top-quality equipment while delivering first-rate customer service.

Have questions about our products? We have answers! Reach out to one of our staff members by emailing us at sales@myinboardmarine.com or by calling us at 803-766-8586. Our professional marine service technicians will respond to you quickly! Grab your boat mufflers from the industry-leading online marine store today. Pro Tip: Get your part number either off the old muffler or from your engine/boat manufacturer/dealer if you are not sure!

For Warranty Information, click HERE for the PDF

PLEASE NOTE: Ultra Marine Mufflers are MADE TO ORDER.

Your order will normally ship within 4 BUSINESS days after you order.

Scroll down for all Mufflers

2011-2012 MUFFLER MASTERCRAFT -  3.5" inlet/outlet - Port 6.0L - ILMOR Engine OEM 252072
25%
$649.00 $861.08
MUFFLER MASTERCRAFT 2011 - 2012 3.5" inlet/outlet Port 6.0L - ILMOR Engine OEM 252072 MUFFLER-PORT 2011 - 2012 USE W/ILMOR 6.0L  Manufactured by Ultra Marine....
2011-2012 MUFFLER MASTERCRAFT - 3.5" inlet/outlet - Port 5.7 L ILMOR Engine OEM 252070
20%
$425.05 $529.27
MUFFLER MASTERCRAFT 2011 - 2012 3.5" inlet/outlet Port Side 5.7 L ILMOR Engine OEM 252070 MUFFLER-PORT 2011 - 2012 - USE W/ILMOR 5.7L Manufactured by...
2011-2012 Muffler Mastercraft - 3.5" Inlet/Outlet - Port 5.7 Liter OEM 252080
30%
$579.82 $823.69
MUFFLER MASTERCRAFT 2011 - 2012 3.5" inlet/outlet Port 5.7 Liter OEM 252080 MUFFLER - PORT 5.7 Manufactured by Ultra Marine. Easy to install! Ultra Marine...
2011-2012 MUFFLER MASTERCRAFT - 3.5" inlet/outlet - Port 7.4 Liter OEM 252084
31%
$609.38 $882.14
MUFFLER MASTERCRAFT 2011 - 2012 3.5" inlet/outlet Port 7.4 Liter OEM 252084 MUFFLER - PORT 7.4 Manufactured by Ultra Marine. Easy to install! Ultra Marine...
2011-2012 Muffler Mastercraft - 3.5" Inlet/Outlet - Starboard 5.7 Liter OEM 252081
30%
$578.82 $823.69
MUFFLER MASTERCRAFT 2011 - 2012 3.5" inlet/outlet Starboard 5.7 Liter OEM 252081 MUFFLER-STBD 5.7 Manufactured by Ultra Marine. Easy to install! Ultra Marine Fine fiberglass...
2011-2012 MUFFLER MASTERCRAFT - 3.5" inlet/outlet - Starboard 7.4 Liter OEM 252085
31%
$609.38 $882.14
MUFFLER MASTERCRAFT 2011 - 2012 3.5" inlet/outlet Starboard 7.4 Liter OEM 252085 MUFFLER-STBD 7.4 Manufactured by Ultra Marine. Easy to install! Ultra Marine Fine fiberglass...
2011-2012 Muffler Mastercraft - 3.5" Inlet/Outlet - Starboard MCX V-Drive OEM 252075
13%
$460.82 $529.27
MUFFLER MASTERCRAFT 2011 - 2012 3.5" inlet/outlet Starboard MCX V-Drive OEM 252075 MUFFLER-STBD 2011 - 2012 USE W/ MCX V-DRIVE Manufactured by Ultra Marine. Easy...
2011-2012 MUFFLER MASTERCRAFT - 3.5" inlet/outlet -Starboard 5.7 L ILMOR Engine OEM 252071
20%
$425.05 $529.27
MUFFLER MASTERCRAFT 2011 - 2012 3.5" inlet/outlet Starboard 5.7 L ILMOR Engine OEM 252071 MUFFLER - SARBOARD - 2011 - 2012 USE W/ILMOR 5.7L  Manufactured...
2011-2012 MUFFLER MASTERCRAFT - 3.5" inlet/outlet -Starboard 6.0L - ILMOR Engine OEM 252073
14%
$483.38 $560.79
MUFFLER MASTERCRAFT 2011 - 2012 3.5" inlet/outlet Starboard 6.0L - ILMOR Engine OEM 252073 MUFFLER-STARBOARD 2011 - 2012 USE W/ILMOR 6.0L Manufactured by Ultra Marine....
2011-2012 Muffler Mastercraft - 3.5" Inlet/Outlet Port 6.0/6.2 Liter OEM 252082
31%
$608.38 $882.14
MUFFLER MASTERCRAFT 2011 - 2012 3.5" inlet/outlet Port 6.0/6.2 Liter OEM 252082 MUFFLER - PORT 6.0/6.2 Manufactured by Ultra Marine. Easy to install! Ultra Marine...
2011-2012 MUFFLER MASTERCRAFT - 3.5" inlet/outlet Starboard 6.0/6.2 Liter OEM 252083
31%
$609.38 $882.14
MUFFLER MASTERCRAFT 2011 - 2012 3.5" inlet/outlet Starboard 6.0/6.2 Liter OEM 252083 MUFFLER STARBOARD - 6.0/6.2 Manufactured by Ultra Marine. Easy to install! Ultra Marine...
2011-2012 MUFFLER MASTERCRAFT - 3.5" inlet/outlet -Port MCX V-Drive OEM 252074
13%
$458.05 $529.27
MUFFLER MASTERCRAFT 2011 - 2012 3.5" inlet/outlet Port MCX V-Drive OEM 252074 MUFFLER - PORT 2011 - 2012 USE W/ MCX V-DRIVE Manufactured by Ultra...
2011-2014 Muffler Mastercraft - 3.5" W/80° Elbow -28" Body OEM 252079
29%
$564.53 $793.65
MUFFLER MASTERCRAFT 2011 - 2014 3.5" W/80° Elbow 28" Body OEM 252079 MUFFLER - 3.5" Outlet X 80* INLET 2011 - 2014 with a 28"...
2013 MUFFLER MASTERCRAFT - Port 3.5"inlet w/68° angle tilted 15° - 90° outlet  OEM 252089P
13%
$879.05 $1,008.13
MUFFLER MASTERCRAFT 2013 - 2014 PORT SIDE Port 3.5" inlet w/68° angle tilted 15° 90° outlet OEM 252089P MUFFLER - PORT SIDE  - 2013 -...
2013 Muffler Mastercraft - Starboard 3.5"Inlet W/68° Angle Tilted 15° - 90° Outlet  OEM 252089S
23%
$779.51 $1,008.13
MUFFLER MASTERCRAFT 2013 STARBOARD Starboard 3.5" inlet w/68° angle tilted 15° 90° outlet OEM 252089S MUFFLER - STARBOARD SIDE 2013 - 2014 IF YOU NEED...
2013-2014 Muffler Mastercraft - 3.5"Inlet/Outlet - Starboard Universal  OEM 252087S
31%
$695.00 $1,007.30
MUFFLER MASTERCRAFT 2013 - 2014 3.5"inlet/outlet Starboard Universal OEM 252087S MUFFLER - STARBOARD SIDE 2013 - 2014  Manufactured by Ultra Marine. Easy to install! Ultra Marine...
2013-2014 Muffler Mastercraft- 3.5" Inlet/Outlet - Port Universal  OEM 252087P
33%
$678.68 $1,007.30
MUFFLER MASTERCRAFT 2013 - 2014 3.5"inlet/outlet Port Universal OEM 252087P MUFFLER - PORT SIDE 2013 - 2014 Manufactured by Ultra Marine. Easy to install! Ultra...
2014 Muffler Kit Mastercraft - 5.7 Standard 214V - X14V Port And Starboard Mufflers 250047A
18%
$1,052.59 $1,286.71
Mastercraft Muffler Kit - 2014 5.7L Standard 214V & X14V Part# 250047A For Standard 5.7L 214 - X14V Kit Includes: 1 - Standard 5.7L Port Muffler...
2014 Muffler Kit Mastercraft - 5.7 Standard X10/25/30/46 Port And Starboard Mufflers 250041B
22%
$1,007.39 $1,286.71
Mastercraft Muffler Kit - 2014 5.7L Standard X10/25/30/46 Part# 250041B For Standard 5.7L X10/25/30/46 Kit Includes: 1 - Standard 5.7L Port Muffler 1 - Standard 5.7L...
2014 Muffler Kit Mastercraft - 5.7 Standard X2 Port And Starboard Mufflers 250044B
26%
$949.44 $1,286.71
Mastercraft Muffler Kit - 2014 5.7L Standard X2 Part# 250044B For Standard 5.7L X2 Kit Includes: 1 - Standard 5.7L Port Muffler 1 - Standard 5.7L...
Items 21 to 40 of 93 total