Touring Models Road King, Road King Custom, Road King Classic, Road Glide, Street Glide, Electra Glide, Electra Glide Classic, and Electra Glide Ultra Classic bikes.
Sponsored by:
Sponsored by:

what kind of oil cooler

Thread Tools
 
Search this Thread
 
Old May 9, 2009 | 08:26 PM
  #11  
rockhard69's Avatar
rockhard69
Road Captain
Joined: Aug 2007
Posts: 622
Likes: 1
From: oklahoma
Default

I installed the Harley premium oil cooler, easy install, but the directions are lousy. No leaks and looks good.
 
Reply
Old May 9, 2009 | 09:11 PM
  #12  
DMetcalf's Avatar
DMetcalf
Road Captain
Joined: Apr 2009
Posts: 669
Likes: 16
From: Princeton, Texas
Default

I installed the 10 row Jagg vertical mount with a thermostat. It's what the local police units use so I figured it has got to work well.
 
Reply
Old May 10, 2009 | 07:59 AM
  #13  
greg09997's Avatar
greg09997
Road Warrior
15 Year Member
Liked
Loved
Community Favorite
Joined: May 2007
Posts: 1,497
Likes: 101
From: Portland, OR
Default

Harley Premium... Very easy install.
 
Reply
Old May 10, 2009 | 08:04 AM
  #14  
wingman05's Avatar
wingman05
Road Captain
Joined: Aug 2007
Posts: 642
Likes: 3
From: Bellmawr, New Jersey
Default

Harley Premium Cooler
 
Reply
Old May 21, 2009 | 08:48 AM
  #15  
st john's Avatar
st john
Road Master
15 Year Member
Joined: Sep 2006
Posts: 793
Likes: 23
From: AZ
Default

What is this about needing a special tool 7/16. anyone have a picture
of what they are (who ever are is) talking about?
Is it in a standard tool box? (novice)
If you have installed one can you describe the tool and such.
Thanks
 
Reply
Old May 21, 2009 | 09:15 AM
  #16  
cfmii11's Avatar
cfmii11
Road Master
Joined: Jan 2008
Posts: 771
Likes: 1
From: Connecticut
Default

Jagg 10 row horizontal
 
Reply
Old May 21, 2009 | 09:26 AM
  #17  
roadroids's Avatar
roadroids
Cruiser
Joined: Dec 2007
Posts: 127
Likes: 0
Default

I've been extremely happy with my 10 row vertical Jagg. I chose it because I thought it would be more efficient than a horizontal cooler - away from reflected road heat and less likely to be abused by rocks and other stuff that might bounce up from the road. If you don't know it's there and are not looking for it you can't see it blends in well with the black frame. Took some time to install it, but it wasn't rocket science. I choose to go without the cut off valve or thermostat - less to go wrong. In the winter, I let it warm up for a few minutes before riding.
 
Reply
Old May 21, 2009 | 10:12 AM
  #18  
iclick's Avatar
iclick
Extreme HDF Member
Joined: Sep 2005
Posts: 11,615
Likes: 50
From: Baton Rouge, LA
Default

I have the HD Premium that I've used through two summers in S. LA and have found it a very good cooler for our hot weather. It is an 8-row with "turbulators," like Jagg, but Jagg has a 10-row cooler that can be mounted either low like the HD or vertically along the left downtube. The HD comes with a thermostat, which I consider essential (or a manual bypass valve), and my limited experience with the Jagg t'stats is that they can be problematic. A friend bought one but the valve wouldn't open and the replacement wouldn't close. He gave up and installed a manual valve, which will work as well if you remember to use it.

I've never heard of a problem with the HD cooler and it cools effectively, so if I had to do it over again I would buy it. I'm running lean AFR's in the cruise range for better mileage and that translates into hotter engine temperatures, thus oil temps tend to run higher. In summer I never see >205° while the bike is moving >45mph and has never exceeded 230°, that only a few times in hot stop-and-go traffic. These are acceptable oil temps, IMO. FWIW I can also switch the PCV-AT into the richer base map on the fly for added cooling.

I personally feel that all TC engines should be equipped with oil coolers, especially the newer TC96/103's, and I wouldn't be without one on my bike.
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-1

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-2

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

Killer Custom's Jail Break Is The Breakout That Refused to Blend In

 Verdad Gallardo
story-4

Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

 Verdad Gallardo
story-5

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-6

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-7

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-8

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
story-9

Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider

 Verdad Gallardo
Old May 21, 2009 | 10:18 AM
  #19  
Black Flag's Avatar
Black Flag
Tourer
Joined: Jul 2007
Posts: 435
Likes: 0
From: Central Arizona
Default

Jagg 10 row horizontal with thermostat adapter. Works well, imho.
 
Reply
Old May 21, 2009 | 10:48 AM
  #20  
madmatt's Avatar
madmatt
Intermediate
Joined: Jun 2008
Posts: 30
Likes: 0
From: Singapore
Default

I've got the HD premium put on for about a year without any leaks till I put in a PC and had it dyno'd. Brought it in to get it tightened up and watching for any further oil drools. Works pretty well till recently though.
 
Reply



All times are GMT -5. The time now is 04:44 PM.

story-0
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-1
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-2
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-3
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-4
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-5
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-6
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE
story-7
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE
story-8
10 Things Harley-Davidson Needs to Fix in 2026

Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.

By Verdad Gallardo | 2026-01-13 18:33:17


VIEW MORE
story-9
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider

Slideshow: Graeme Billington's left-hand-drive Shovelhead is as much about problem-solving as it is about classic Harley form.

By Verdad Gallardo | 2025-12-30 11:27:08


VIEW MORE