Which derby cover gasket

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Jun 14, 2021 | 07:03 PM

Fblo1690

Thread Starter

Road Master

Joined: May 2012

Posts: 1,001

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From: Houston

Which derby cover gasket

Which derby cover gasket do you prefer, I had my bike on the kickstand and I saw a drip out the bottom, removed cover and it has the flat gasket but the red silicone part looked poorly done. I’m seeing there’s an oring which I think was the old style. Which do y’all prefer? I’ve read the oring last forever.

Jun 14, 2021 | 07:55 PM

mike131

Road Warrior

Joined: Dec 2012

Posts: 1,539

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From: magnolia tx

I've always used the o ring type and never had a problem

Jun 14, 2021 | 08:24 PM

evotrike

Road Master

Joined: Jan 2019

Posts: 1,119

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From: Texas

O-ring on my 98. No leak ever.

Jun 14, 2021 | 09:23 PM

EVOrider

Stellar HDF Member

Joined: Feb 2007

Posts: 2,558

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From: Russellville, Arkansas

I prefer the o-ring version. I’ve found the flat gasket to leak if the cover has the slightest warp.

Jun 15, 2021 | 03:42 AM

Yankee Dog

Grand HDF Member

Joined: Apr 2007

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From: Brighton, MI

O-ring.

Jun 15, 2021 | 05:50 AM

Dan89FLSTC

Seasoned HDF Member

Joined: May 2008

Posts: 21,105

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From: South Carolina

I think the o ring on my `89 Softail is the original.

Jun 15, 2021 | 06:19 AM

Architect

Seasoned HDF Member

Joined: Apr 2010

Posts: 9,533

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From: Long Island, New York

I switched to the flat gasket and never had an issue. O ring needs to be replaced every time you open the derby cover, flat gasket can be re-used several times. O ring also used to be a little bit of a PITA, flat gasket less fussy.

That said, either in good working order will stop a leak. If yours is leaking, replace the gasket, dealer's choice as to which one. Good luck.