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Exhaust Gaskets

46 Reviews 2 Answered Questions
From $3.35 to $12.50
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Description Part Number Price Buy
Cont.#21493 for A-65 to 0-300
08-05237
$3.35
Quantity
Cont. #632837 Stainless Steel
632837
$8.55
Quantity
Lycoming 0-320 except h series
77611
$12.50
Quantity
Subtotal $0.00
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Overview

Continental P/N 21493 (now P/N 632837 stainless steel)
   
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
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Reviews

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Product delivered as expected. Great quality

Scott S Verified Purchase

77611 LYCOMING EXHAUST FLANGE GASKET
November 29, 2023

2 stacked per flange

Robert L Verified Purchase

S/S RAPCO EXHAUST GASKET RA632837
October 31, 2023

These are stamped sheetmetal and youll want two for each cylinder. For best results, use them with the concave sides together with a wee bead of red RTV between them. then another wee bead of red RTV on each outer side of the sandwich, to ensure a very good seal between the head and the manifold.

Gelston A Verified Purchase

S/S RAPCO EXHAUST GASKET RA632837
September 14, 2023

OEM. seals great

James A Verified Purchase

77611 LYCOMING EXHAUST FLANGE GASKET
September 12, 2023

Roger H Verified Purchase

77611 LYCOMING EXHAUST FLANGE GASKET
September 8, 2023

Working OK.

Joe V Verified Purchase

S/S RAPCO EXHAUST GASKET RA632837
July 25, 2023

Penticton F Verified Purchase

77611 LYCOMING EXHAUST FLANGE GASKET
July 25, 2023

White B Verified Purchase

77611 LYCOMING EXHAUST FLANGE GASKET
June 12, 2023

David K Verified Purchase

77611 LYCOMING EXHAUST FLANGE GASKET
June 9, 2023

Magaero L Verified Purchase

77611 LYCOMING EXHAUST FLANGE GASKET
April 27, 2023

Q&A

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Please note, Aircraft Spruce'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 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: Regarding RA630365 copper exhaust gaskets: Are these used in pairs, where you would stack 2 for each flange, or just one per flange? So on a 4 cylinder engine, would I need 8, or 4 total?

Only one of the RA632837 gaskets are required per cylinder. The RA630365 have a raised bead that can be stacked if desired, but not required

Q: If using 2 gaskets per cylinder, do the raised beads oppose each other or should they interlock?

Make sure cylinder and exhaust stack flanges are flat. Check aircraft maintenance manual for proper installation. In most cases solid gaskets should be installed in pairs with raised beads interlocked and facing away from the cylinder. Also check maintenance manual for exhaust nut torque spec. Re-torque after a hot run.

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