Wall Colmonoy
WC 221-9

Heater Muffler, Left Hand, New Manufacture, for Cessna Models 170B, 172, 172A

Heater Muffler, Left Hand, New Manufacture, for Cessna Models 170B, 172, 172A

$20.00 Flat Rate Shipping

Nicrocraft Heater Muffler, Left Hand, New Manufacture, from Wall Colmonoy

For Cessna Models 170B, 172, 172A
Includes 8130-3 Airworthiness Approval
Download the Complete Wall Colmonoy Catalog Here

Model 170 S/N 25373 and up, with Continental Engine O-300-C, C145-2 or 2H
Model 172 S/N 28000 thru 47746 with Continental Engine C-145-2, O-300-A, O-300-B
Model 172A S/N 28000 thru 47746 with Continental Engine O-300-C, O-300-D

"Item #" Corresponds to "Diagram 1" Image (See Photos Tab)
Item # Description Cessna OEM WCC New WCC O/H
1 Riser 0550157-8 221-8 0550157-8R
2 Riser 0550157-7 221-7 0550157-7R
3 Clamp Assembly - 568-06 -
4 Heater Muffler, Left Hand 0550157-9 221-9 0550157-9R
5 Shroud Assembly, Left Hand 0550157-15 221-15 -
6 Heater Muffler, Right Hand 0550157-32 221-32 0550157-32R
7 Shroud Assembly, Right Hand 0550157-27 221-27 -
8 Clamp Assembly - 221-5 -
9 Tailpipe 0550157-4 221-4 0550157-4R
10 Tailpipe 0550157-33 221-33 0550157-33R
See "Related Products" Tab for Additional Left or Right Hand Models

Wall Colmonoy Nicrocraft aircraft exhaust systems are built to take the heat. Components are engineered to meet or exceed original equipment standards. Years of parts-repair experience have led to design improvements, which enhance service life of Nicrocraft's exhaust components.

Nicrocraft products are performance proven. That's why OEM manufacturers use our parts. New and overhauled components are hydrogen furnace stress ­relieved. This extra step increases service life and improves performance. The internal parts are stronger. Wall Colmonoy fuses their exclusive high-strength Nicrobraz alloys to baffles and other internal parts to increase durability.

Products are individually leak tested. Exhaust system failure can lead to carbon monoxide poisoning, loss of engine power, excessive engine wear and even fire. That's why each Nicrocraft component is subjected to a rigid leak ­testing procedures assuring 100% compliance with applicable safety and performance standards. Backed by a full 12-month, unlimited-hours warranty and 25 years of manufacturing and overhauling exhaust components.

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