Replacement Flappers
2-1/2" to 3" I.D. External Flapper

2-1/2" to 3" I.D. External Flapper

810-EG-300
Your Price:
$12.99

Quantity:  

2-1/2" to 3" I.D. External Flapper

These are excellent American-made flaps that will not curl like cheap import copies. These are a must for boats with a very close distance between exhaust ports and the water line Clamp is included.  Sold each.


3-1/2" to 4" I.D. External Flapper

3-1/2" to 4" I.D. External Flapper

810-EG-400
Your Price:
$18.99

Quantity:  

3-1/2" to 4" I.D. External Flapper

These are excellent American-made flaps that will not curl like cheap import copies. These are a must for boats with a very close distance between exhaust ports and the water line Clamp is included.  Sold each.


4

4" Slip-On Silent Seal Flap Assembly, Stainless Steel

410-280195
Your Price:
$49.99

Quantity:  
4" Slip-On Silent Seal Flap Assembly, Stainless Steel

At last, a combination of our best flap in what is now the easiestinstallation ever. Whether your tired of "Clanking" metal flaps or justcan't believe you have to cut out and braze in a new butterfly styleflap; there finally is a solution. Hardin Marine has designed this easyto install effective slip on version of the popular "Silent-Seal"exhaust flap. No cutting or welding, this unit is designed to merely slipover the inlet side of your existing 4" exhaust tip, and is held orclamped into place by your existing exhaust hose. It couldn't be easier.The unit can now be serviced externally, due to the silent seal flapdesign. There are two retaining screws that bolt the tab to the slip oncage for easy serviceability. Definitely one of the best new conceivedpart of the year.
Sold As Each

4-1/2

4-1/2" I.D. External Flapper

810-EG-450
Your Price:
$25.99

Quantity:  

4-1/2" I.D. External Flapper

These are excellent American-made flaps that will not curl like cheap import copies. These are a must for boats with a very close distance between exhaust ports and the water line Clamp is included.  Sold each.


4-1/2

5" to 6" I.D. External Flapper

810-EG-500
Your Price:
$44.99

Quantity:  

5" - 6" I.D. External Flapper

These are excellent American-made flaps that will not curl like cheap import copies. These are a must for boats with a very close distance between exhaust ports and the water line Clamp is included.  Sold each.

NOTE: THIS FLAP HAS A 6" I.D. AND MUST BE CUT DOWN TO GO ON 5" TUBE!


Angle Cut Exhaust Clamp on Flap, Stainless Steel

Angle Cut Exhaust Clamp on Flap, Stainless Steel

410-280185
Your Price:
$169.99

Quantity:  
Angle Cut Exhaust Clamp on Flap, Stainless Steel

If you've always wanted the stylish look of a angled cut tip but couldn't due to the fact you really needed the safety of an external flapper then we have the answer you've been looking for. These high polished 316L stainless steel external flaps are designed to slides over an existing 4" straight cut tip and provide the security of a secondary or even primary exhaust flapper. Sold in pairs.

Straight Cut Exhaust Clamp on Flap, Stainless Steel

Straight Cut Exhaust Clamp on Flap, Stainless Steel

410-280190
Your Price:
$159.99

Quantity:  
Straight Cut Exhaust Clamp on Flap, Stainless Steel

If you one of the thousands of people frustrated that Your beautiful boat's gleaming exhaust tips are finished off with an ugly rubber salsbury flap then we finally have your answer. These new 316L stainless steel clamp on external flaps slide on to and clamp to a 4" stainless exhaust tip. They are not only do the job their designed for but they will do it in style. Sold in pairs.

3

3" Internal Butterfly Style Rubber Replacement Exhaust Flapper

410-280171
Your Price:
$24.99

Quantity:  

3" Internal Butterfly Style Rubber Replacement Exhaust Flapper

These original equipment style rubber flaps are designed to replace missing or burned out flaps. They can also be easily retro-fitted to tips that were not originally equipped with flaps. Note: Flaps are recommended in all wet exhaust systems. Sold each.


3-1/2" Internal Butterfly Style Rubber Replacement Exhaust Flapper

3-1/2" Internal Butterfly Style Rubber Replacement Exhaust Flapper

410-280172
Your Price:
$39.99

Quantity:  

3-1/2" Internal Butterfly Style Rubber Replacement Exhaust Flapper

These original equipment style rubber flaps are designed to replace missing or burned out flaps. They can also be easily retro-fitted to tips that were not originally equipped with flaps. Note: Flaps are recommended in all wet exhaust systems. Sold each.


4

4" Internal Butterfly Style Rubber Replacement Exhaust Flapper

410-280173
Your Price:
$36.99

Quantity:  

4" Internal Butterfly Style Rubber Replacement Exhaust Flapper

These original equipment style rubber flaps are designed to replace missing or burned out flaps. They can also be easily retro-fitted to tips that were not originally equipped with flaps. Note: Flaps are recommended in all wet exhaust systems. Sold each.


3-1/4

3-1/4" O.D Replacement Rubber Trumpet Tip Flapper

610-1031R
Your Price:
$8.99

Quantity:  

3-1/4" O.D Replacement Rubber Trumpet Tip Flapper

These are the most common replacement flaps found in trumpet style exhaust tips. Each flap includes new mounting hardware. 7/8" spacing on the screw holes. Sold each.


3-5/8

3-5/8" O.D Replacement Rubber Trumpet Tip Flapper

610-1056R
Your Price:
$8.99

Quantity:  

3-5/8" O.D Replacement Rubber Trumpet Tip Flapper

These are the most common replacement flaps found in trumpet style exhaust tips.  Each flap includes new mounting hardware. Bolt hole center to center is 7/8". Sold each.


4

4" Silent Seal Easy Service Replacement Exhaust Flapper

410-280181
Your Price:
$28.99

Quantity:  

4" Silent Seal Easy Service Exhaust Replacement Flapper (Each)

These kits include a replacement flap, (2) two screws and (2) two flanges (front & back) to replace old or damaged flaps in Hardin Marine 4" exhaust tips. These will fit in #410-281400, #410-281401, #410-281402, and #410-281403 exhaust tips. The mounting holes are 1" apart


4" Silent Seal Replacement Flapper

4" Silent Seal Replacement Flapper

410-280178
Your Price:
$18.99

Quantity:  

4" Silent Seal Replacement Flapper

This flapper is manufactured from a high temperature, burn resistant specialrubber compound.  This is the same flapper used in part number 410-280179Silent Seal flapper Assembly.

3-15/16" od with 1" center to center on the mounting holes.

4" Silent Seal Easy Service Exhaust Flapper Assembly

4" Silent Seal Easy Service Exhaust Flapper Assembly

410-280179
Your Price:
$39.99

Quantity:  

4" Silent Seal Easy Service Exhaust Flapper Assembly (Each)

At last an answer to eliminating the annoying clanking and banging caused by old design stainless anti-burn exhaust flaps. It seems the many complaints of knocking engine noises and fears caused by the sounds of anti-burn flaps have created the demand to develop and cure this problem once and for all. The all new "Silent Seal" exhaust flap with its special high temp burn resistant rubber compounded exhaust flap and stainless steel cage design provide the perfect answer. This new flap design provides a superior seal and quiet operation. These flaps can easily be retrofitted to earlier style tips with just minor brazing or welding of the flap cage to your exhaust tip.


4" Stainless Steel Anti-Burn Replacement Flapper

4" Stainless Steel Anti-Burn Replacement Flapper

410-280174
Your Price:
$49.99

Quantity:  

4" Stainless Steel Anti-Burn Replacement Flapper

At last an answer to burned out or deteriorating rubber flaps. These simple to retro-fit anti-burn flaps are designed to be used in a 4" exhaust tip. These could quite possibly be the last flap you ever change. These flaps need the pins brazed or welded for proper installation. Sold each.


4

4" Stainless Steel Exhaust Flappers

410-280175
Your Price:
$329.99

Quantity:  

4" Stainless Steel Exhaust Flappers (pair)

If you're like us and can't stand the ugly sight of those black rubber Salisbury style flappers then feast your eyes on this piece.  Hardin Marine has handcrafted these beautifully polished stainless steel exhaust flappers to eliminate that eyesore.  The flappers feature and O-ring seal to eliminate the possibility of any noise from the flapper during normal operation.  This new flapper represents the ultimate finishing touch to your boats exhaust system.  Available in 4", 4-1/2" or 5" sizes.


4-1/2" Stainless Steel Exhaust Flappers

4-1/2" Stainless Steel Exhaust Flappers

410-280176
Your Price:
$329.99

Quantity:  

4-1/2" Stainless Steel Exhaust Flappers (pair)

If you're like us and can't stand the ugly sight of those black rubber Salisbury style flappers then feast your eyes on this piece.  Hardin Marine has handcrafted these beautifully polished stainless steel exhaust flappers to eliminate that eyesore.  The flappers feature and O-ring seal to eliminate the possibility of any noise from the flapper during normal operation.  This new flapper represents the ultimate finishing touch to your boats exhaust system.  Available in 4", 4-1/2" or 5" sizes.


5" Stainless Steel Exhaust Flappers

5" Stainless Steel Exhaust Flappers

410-280177
Your Price:
$329.99

Quantity:  

5" Stainless Steel Exhaust Flappers (pair)

If you're like us and can't stand the ugly sight of those black rubber Salisbury style flappers then feast your eyes on this piece.  Hardin Marine has handcrafted these beautifully polished stainless steel exhaust flappers to eliminate that eyesore.  The flappers feature and O-ring seal to eliminate the possibility of any noise from the flapper during normal operation.  This new flapper represents the ultimate finishing touch to your boats exhaust system.  Available in 4", 4-1/2" or 5" sizes.