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4" Silent Seal Easy
Service Internal Exhaust Flappers
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Cutaway View |
At last an answer to
eliminating the annoying clanking and banging caused by stainless steel
anit-burn flappers. It seems the many complaints of knocking
engine noises and fears caused by the sound have finally created such a
huge demand that Hardin Marine has once again stepped up with a solution
to cure this problem. And cure the problem is exactly what the all
new "Silent Seal" exhaust flap does. By using a high temperature
burn resistant rubber compound in combination with a stainless steel
cage design to provide the perfect support system this new flapper
provides a superior seal and quiet operation. These flappers you
can easily retrofit your earlier style 4" exhaust tips with just minor
welding to your exhaust tip.

Closed View |

Open View |
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Part
No. |
Description |
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TBD |
4" Silent Seal Internal
Exhaust Flapper Assembly (each) |
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Hardin Marine
Stainless Steel External Exhaust Flappers
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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.
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Part
No. |
Description |
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410-280175 |
4" Stainless Steel Exhaust
Flappers (pair) |
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410-280176 |
4-1/2" Stainless Steel
Exhaust Flappers (pair) |
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410-280177 |
5" Stainless Steel Exhaust
Flappers (pair) |
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Extreme
Duty External Exhaust Flap
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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.
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Hardin Marine
4" Stainless Steel Anti-Burn Replacement Flap
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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.
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Part
No. |
Description |
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410-280174 |
4" Anti-burn Replacement Flap (each) |
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Hardin Marine
Replacement Rubber Trumpet Flaps
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These are the most common replacement flaps found
in trumpet style exhaust tips. Each flap includes new
mounting hardware.
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Part
No. |
Description |
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610-1031R |
3-1/4" OD Rubber Flap (each) |
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610-1056R |
3-5/8" OD Rubber Flap (each) |
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Hardin Marine
Internal Butterfly Style Rubber Replacement Flap
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These original equipment style rubber flaps are designed
to replace missing or burnt out flaps. They can also easily
be retro-fitted to tips that weren't originally equipped with
flaps. Note: Flaps are recommended in all wet exhaust systems.
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