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Steel Exhaust Stack Flanges

From $26.50 to $34.80
Material Engine Part No. Price Buy
Mild SteelLycoming 0-235 to 0-540
33021
$27.50
Quantity
Mild SteelContinental A & C Series 0-200, 0-300
33011
$26.50
Quantity
Stainless SteelContinental A & C Series
33101
$30.80
Quantity
Stainless SteelContinental IO-470 thru IO-520
33103
$34.80
Quantity
Stainless SteelLycoming 0-235 thru IO-360
33102
$31.85
Quantity
Stainless SteelLycoming IO-540
33104
$33.50
Quantity
Subtotal $0.00
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Reviews

Nice looking flange. Need minor adjustment to provide a true flat surface for mating to the cylinder head. Once trued and welded on, it was perfect!

David M Verified Purchase

EXHAUST FLANGE # 33102

September 9, 2022

The part is great for the price. Only one side is distorted from shearing. The other side is sufficiently flat for the gasket seating surface.

Milman E Verified Purchase

#33101 SS EXHAUST FLANGE

October 26, 2021

I thought these were laser cut. They were punched out which distorts the flatness and leaves pulled and smeared metal that may need grinding away to fit tubing. Then then it takes more sanding on a large belt sander to get flanges flat and parallel.

Glenn
April 17, 2020

Poor quality mild steel flange. Not flat. Unfinished. Burrs and sharp edges.

Steve K Verified Purchase

MILD STEEL EXH FLANGE # 33021

March 31, 2023

Q&A

Please note, Aircraft Spruce Canada's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Canada assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: What type of steel are these made out of?

P/N# 33021 Is a 1018 Mild Steel. P/N# 33102 is a 321 Stainless Steel.

Q: Assuming then from the above answer for the Continental P/N# 33011 is Mild Steel and P/N# 33101 use 321 Stainless Steel. Is this correct?

Yes, that is correct.

Q: What is the thickness of the material for the 33011 and 33101?

They are both about a 1/4" thick.

Q: What size pipe fits the flange on part # 33011?

The center hole is 1-1/2".

Q: What is the ID of the 33104 flange?

1-3/4"

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