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Old Apr 6, 2026 | 05:03 PM
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Default Oil leak

2016 street glide rear rocker box leaking oil. What am I looking at cost wise to have it fixed? I know I can do the work myself but not sure I am interested in doing the job myself.
 
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Old Apr 6, 2026 | 06:15 PM
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Originally Posted by Drtumolo

2016 street glide rear rocker box leaking oil. What am I looking at cost wise to have it fixed? I know I can do the work myself but not sure I am interested in doing the job myself.


This is a guess, from just a garage mechanic. I've opened several Twin Cam engines down to the cases, and split cases once. But, I don't have access to the HD shop time book...



Do it yourself and it's $13.70 for a rocker cover gasket, #17386-99A. If it's a leaking rocker housing gasket, also add $12.28 for the #16719-99B, rocker housing gasket. That's a total of $25.98 + tax.

If you have a shop do it, I'm guessing 2-3 hrs for rocker cover gasket and 3-4 hours for rocker housing gasket, at your local shop rate, plus any shop fees. Around here, dealer labor rates are around $200/hr. So add $400- $600, with no complications...

I'm a garage mechanic, and take my time. I have a little 350 sq. ft. shop building next to my house, with my table lift and tool boxes. I've worked on all my HD bikes (currently 4 twin cams & 1 M8), unless changing tires on rims... but I have considered a tire changing machine.

I do extras like clean all hole & bolt threads before reassembly. I would also polish the rocker covers, clean the frame backbone area, and inspect the wiring under the tank, while I have the fuel tank off.

From opening my tool box to grab the first tool, to wiping down and putting the last tool away,.... I'd be shocked if it took me over 4hrs for a rocker housing gasket change. I dare say I could do it in about 3 hrs...

But then again, I never really time myself...
 

Last edited by hattitude; Apr 6, 2026 at 06:21 PM.
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Old Apr 6, 2026 | 08:01 PM
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This is a guideline and not a fact burned in stone. The chart is HD's flat rate for touring bikes. It shows the flat rate time as 0.8 hours, or 48 minutes. The following info is from a friend that worked for HD as a service tech / tuner for many years before going to his own shop. They multiplied a value against the flat rate time to get the time for service work, not warranty work.

If the bike is (0-2 years old), use the flat rate manual; if out of factory warranty (2-5 years old), but still covered by ESP, flat rate X 1.25. If greater than 5 years old, flat rate X 1.5. This helps account for rusted/frozen hardware, + the older a bike is, the more likely it's been hacked up at some point.

So a 2016 you would use 1.5 as a multiplier. So 0.8 x 1.5 = 1.2 hours or 72 minutes.



 
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Old Apr 6, 2026 | 08:31 PM
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To be more accurate it is the lower gasket on the rear rocker box.
 
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Old Apr 6, 2026 | 08:41 PM
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Then it's 1.2 x 1.5 = 1.8 hours or 108 minutes.
 
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Old Apr 6, 2026 | 08:50 PM
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They sure pick up speed doing the second one
 
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Old Apr 6, 2026 | 10:09 PM
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Originally Posted by Ohio HD
Then it's 1.2 x 1.5 = 1.8 hours or 108 minutes.
It's my bet that they don't rebuild the head breathers in the process. Or disassemble and inspect rocker arms and shafts.
 
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Old Apr 6, 2026 | 10:15 PM
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Originally Posted by Max Headflow
It's my bet that they don't rebuild the head breathers in the process. Or disassemble and inspect rocker arms and shafts.
I would say that's very true. Just the basics and ship it.
 
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Old Apr 7, 2026 | 06:45 AM
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Any recommendations on gasket brands? I was looking at the ones that Fuel Moto sells. (Cometic)
 
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Old Apr 7, 2026 | 07:36 AM
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The O.E. gaskets are good
 
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