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.

IMPORTANT - OUR OFFICES WILL BE CLOSED FOR SCHEDULED MAINTENANCE ON THURSDAY, NOVEMBER 21st & FRIDAY, NOVEMBER 22nd.
ALL ORDERS PLACED ON THURSDAY, NOVEMBER 21st THROUGH SUNDAY, NOVEMBER 24th WILL BE PROCESSED WHEN WE OPEN MONDAY, NOVEMBER 25th.

WE APPRECIATE YOUR PATIENCE AS WE IMPROVE OUR ABILITY TO SERVE YOU BY UPDATING OUR INTERNAL COMPUTER SYSTEMS!

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 - Starboard MCX V-Drive OEM 252075
5%
$524.00 $549.99
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 -Port MCX V-Drive OEM 252074
19%
$525.00 $649.99
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...
2011-2012 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 6.0L - 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....
2009-2012 MUFFLER MASTERCRAFT LATE 2009 - 2012 - 4" Inlet/3.5" Outlet - Vertical Starboard 245/255/XS Use W/8.1 OEM 252065
30%
$583.19 $832.50
MUFFLER MASTERCRAFT LATE 2009 - 2012 4" Inlet - 3.5" Outlet Vertical Starboard 245/255/XS Use W/8.1 OEM 252065 MUFFLER-4>3.5"VERT. STARBOARD LATE'2009 - 2012 - 245/255/XS...
2009-2012 MUFFLER MASTERCRAFT LATE 2009 - 2012 - 4" Inlet /3.5" Outlet - Vertical Port 245/255/XS use W/8.1 OEM 252064
30%
$583.20 $832.50
MUFFLER MASTERCRAFT LATE 2009 - 2012 4" Inlet /3.5" Outlet Vertical Port 245/255/XS Use W/8.1 OEM 252064 MUFFLER 43.5" VERT. PORT LATE 2009 -2012  -...
2009-2012 MUFFLER MASTERCRAFT - INLINE HORIZONTAL 3-1/2" INLET - OUTLET 214/220/265 -252004
41%
$439.00 $742.96
Years 2009 - 2012 Mastercraft Muffler Inline Horizontal 214/220/265  Part# 252004 3-1/2" Inlet & Outlet OAL Approx. 35.5" - 36"  Manufactured by Ultra Marine. Easy to install! Ultra...
2014 Muffler Mastercraft - 5.7 Standard 214V - X14V Starboard Side 250047AS
22%
$455.95 $580.99
Mastercraft Muffler 2014 Prostar 5.7L Standard Starboard Side Muffler 214V & X14V Part# 250047AS Full Kit Part# 250047A includes both mufflers. Manufactured by Ultra Marine. Easy to...
2014 Muffler Mastercraft - 5.7 Standard 214V - X14V Port Side UM-250047AP
17%
$480.05 $581.76
Mastercraft Muffler 2014 Prostar 5.7L Standard 214V &  X14V Port Side Muffler 214V - X14V Part# 250047AP Full Kit Part# 250047A includes both mufflers. Manufactured by 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 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...
2014 Muffler Kit Mastercraft - Prostar 5.7 Port And Starboard Mufflers With 2 - Fiberglass Elbows 250039A
15%
$1,089.00 $1,283.41
Mastercraft Muffler Kit - 2014 5.7L Part# 250039A Kit Includes: 1 - Prostar 5.7L Port Muffler 1 - Starboard Muffler 2 - Fiberglass Elbows If you...
2014 Muffler Kit Mastercraft Prostar 6.2 Port And Starboard Mufflers With Two 35° Fiberglass Elbows 250038A
19%
$864.13 $1,064.17
Mastercraft Muffler Kit - 2014 6.2L Part# 250038A Kit Includes: 1 - Prostar 6.2L Port Muffler 1 - Starboard Muffler 2 - 35° Fiberglass Elbows Main...
2014 Muffler Mastercraft Prostar 6.2L Engine 2500381
28%
$405.47 $560.94
Mastercraft Muffler 2014 Prostar 6.2L Engine 6.2 Prostar 3.5" Inlet wit a 90° angle - 3.5" Outlet Part# 2500381 Main Barrel is 6" diameter Overall...
2014 Muffler Kit Mastercraft Prostar 5.7 CE Port And Starboard Mufflers With Two 35° Fiberglass Elbows 250037
11%
$945.09 $1,064.17
Mastercraft Muffler Kit - 2014 Years Part# 250037 Kit Includes: 1 - Prostar 5.7 CE Port Muffler 1 - Starboard Muffler 2 - 35° Fiberglass Elbows...
Muffler Interchangeable Angled 3-1/2 Inch O.D. Inlet With 3 Inch O.D. Straight Outlet 46 Inches Long OEM UM-288-3530
36%
$285.00 $442.99
Ultra Marine - Muffler Aftermarket Interchangeable UM-288-3530 Angled 3-1/2" Inlet With 3" Straight Outlet 46" Tip to Tip Was used on some Moomba's mid-1990 to...
Items 81 to 96 of 96 total