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Bully Primary Cover

When the stock 6-speed on the 2007 Touring models came out it was clear that the new primary design was one thing…visually weak. We solved this issue by moving in with pure attitude using our Function-Formed™ design as our guide. The motor sprocket cover, inspection cover, and derby cover make this the perfect canvas for your customizing ideas. Give a personal touch - with your knuckles.

The Bully Primary Cover will add the style and cool factor to your 2007 & later Touring model that the stock primary cover could not. With the introduction of the stock 6 speed on the 2007 Touring models also came a completely new primary assembly. This new primary design got smoother and thus more boring than the previous version.  Being the biggest single piece of architecture on the left side of the motorcycle, it is just begging to be upgraded and replaced.  Having cut our teeth on many designs using our Function Formed cues, we set out to make the primary cover assembly wrap the essential function components of the primary.  We added a motor sprocket cover, inspection cover and what we call the bellhousing around the clutch to break up the large mushy surface area of the stock unit. Adding separate covers also opens up the possibilities when it comes to customizing the aesthetics to meet your demands.

  • 2007- Later Touring 
  • Made from 6061-T6 Billet Aluminum
  • Stock fitting derby covers will bolt up to the bellhousing
  • Cutting edge function form design
  • All parts machined from 6061-T6 billet
  • Direct bolt-on in place of the stock outer primary cover
  • Comes standard as a complete outer primary cover assembly, including derby cover
  • Polished stainless steel fasteners standard
  • Inspection Cover designed for easily checking the chain adjuster
  • Bully Derby Cover available for stock, 1999-later 5 hole derby cover, Big Twin models
  • Motor sprocket and bellhousing bolt to outer primary plate with blind threaded holes, no leaks
  • Includes outer primary gasket, inspection cover gasket and derby cover rubber o-ring
  • Backed by a 2 yr limited warranty
  • Significantly reduces primary chain, clutch and compensator sprocket related noise compared to stock
  • Change the covers to get different looks
  • Inspection Cover designed for easily checking the chain adjuster
  • Clears all stock dimensionally equivalent clutches, chain tensioners and compensating sprockets
  • Stock fitting derby covers will bolt right up to the bellhousing

Primary Cover Finish Options
The Bully Primary Cover comes in 3 different finishes, with the additional option of machined highlights on Wrinkle Black and Gloss Black Powdercoated versions.

Chain Adjuster Access

One of the big differences in the function of the Bully Primary cover when compared to the stock unit, is the inclusion of an inspection cover. The inspection cover can be quickly and easily removed to check chain tension, which is a significant  advantage over  having to remove the entire outer primary. We included an inspection cover because we also offer a convention manual adjust chain tensioner. The Armored Attitude Chain Adjuster solves the issues associated with the stock auto tensioner. The first moment the chain has enough slack into it to ratchet the shoe up another notch, and thus tightening the chain, it will. One notch tighter  might not be an issue, but you don’t have any control of when this mechanism stops tightening the chain. The end result in many cases is the primary chain is so tight that it will start wearing out left side motor case bearings, inner primary bearings, clutch hub bearings and transmission output gear bearings. Our manual chain tensioner allows you to adjust the chain to the proper 5/8-7/8″ (cold) freeplay, and never have to worry about the chain getting too tight. The 28% finer teeth spacing, as compared to the 2001-06 ‘L-Bracket’ style, allows more accurate adjustments. We offer this chain adjuster for fitment with stock outer primary covers, as well as a package deal with the Bully Primary Cover.


Bully Primary Cover Kit Part Numbers 

PN Description Fitment
BLY-60008C-67 Primary Kit, Hog Black w/ Highlights 2007-Later Touring
BLY-60001C-67 Primary Kit, Chrome 2007-Later Touring
BLY-60003C-67 Primary Kit, Hog Black 2007-Later Touring
BLY-60009C-67 Primary Kit, Gloss Black w/ Highlights 2007-Later Touring
BLY-600012C-67 Primary Kit, Gloss Black 2007-Later Touring


Bully Derby Cover

Bully Derby Cover Kit

The Bully Primary Cover kit comes with the derby cover you see pictured on this page. A good looking part that will set off any style that you rock. We decided early on when developing this primary cover to make sure that the stock bolt pattern and diameter of the Derby Cover was maintained. So that you people could put their own special derby cover on our primary cover, or such that someone could buy just our Bully Derby Cover Kit and bolt it on their stock outer primary.  Part numbers and fitment are listed below. 

PN Description Fitment
602-BLY Derby Cover Kit, Stock Primary, Chrome 1999-Later, Big Twin
603-BLY Derby Cover Kit, Stock Primary, Wrinkle Black w/ Highlights 1999-Later, Big Twin

Recommended Fluid / Level Picking the right primary fluid ensures the life and durability of your primary, that’s why BAKER recommends a 85W primary oil.  BAKER does not recommend the use of Syn3 (20W-50). For Bert’s article on ‘Oil & Spiders’ Click Here

BAKER Bully Primary Cover Fluid Capacity Dry: 38-45 fl-oz

BAKER Bully Primary Cover Installation Instructions: Click Here


Standard Gear Case Finish Examples (Not applicable to all products)




Wrinkle Black

These example finishes are intended to show the exterior treatments of cases, top covers and doors.

TERM AND CONDITIONS                                                                                         

  • BAKER Drivetrain reserves the right to change prices, terms or policies at any time without notice.
  • Orders can be pre-paid using Visa, MasterCard, American Express, Discover or PayPal.
  • All orders not pre-paid will be sent C.O.D. certified check or money order only unless pre-approved for company check acceptance.
  • Any orders from outside the USA must be pre-paid in US funds via wire transfer; a $30 transfer fee will apply.
  • Prices shown are F.O.B. Haslett, MI.


BAKER™ transmission assemblies, transmission kits, primaries, and oil pans are guaranteed to the original purchaser to be free of manufacturing defects in materials and workmanship for a period of 5 years from the date of purchase or up to 50,000 miles. BAKER™ clutches, kicker cover kits, belt drives, F6F kit, reverse systems, covers and accessories are guaranteed to the original purchaser to be free of manufacturing defects in materials and workmanship for a period of 2 years from the date of purchase or up to 24,000 miles - whichever occurs first. If the product is found by BAKER™ to be defective, such products will, at the option of BAKER™, be replaced or repaired at cost to BAKER™. 

In the event warranty service is required, the original purchaser must call or write BAKER™ immediately with a description of the problem. If it is deemed necessary for BAKER™ to make an evaluation to determine whether the transmission assembly or transmission kit or accessory is defective, the entire transmission assembly, whether originally purchased as an assembly or kit, must be properly packaged and returned prepaid to BAKER™ with a copy of the original invoice of purchase. If after an evaluation has been made by BAKER™ and a defect in materials and/or workmanship is found, BAKER™  will, at BAKER™  option, repair or replace the defective part of the assembly. 


Due to the uniqueness, low price and assembly outside of typical production process of products indicated as Insider Special products, purchasing these Insider Special products include a warranty so to guarantee the original purchaser to be free of manufacturing defects in materials and workmanship for a period of 1 year from the date of purchase or up to 12,000 miles. We have provided extended options for you to purchase below. 


Any merchandise returned for any reason (exchange, credit or modification) must be accompanied by a Return Goods Authorization (RGA) number or it will be refused. Call BAKER™ to obtain this number prior to returning goods for any reason. There is a 15% re-stocking fee for all returned items. BAKER™ is not liable for any shipping charges. 


NOTE: Limited warranty does not cover labor or other costs or expenses incidental to the repair and or replacement of BAKER™ products.

This warranty does not apply if one or more of the following situations is judged by BAKER™ to be relevant: BAKER™ OEM transmissions; (these are subject to the OEM manufactures warranty only), Improper installation, accident, modification (including but not limited to use of unauthorized parts, transmission oils or lubricants), racing, high performance application, mishandling, misapplication, neglect (including but not limited to improper maintenance), or improper repair. 

BAKER™ shall not be liable for any consequential or incidental damages arising out of or in connection with a BAKER™ transmission assembly, transmission kit, component or part. Consequential damages shall include without limitation, loss of use, income or profit, or losses sustained as the result of injury (including death) to any person or loss of or damage to property.

BAKER™ transmissions, transmission kits and accessories are designed exclusively for use in American V-Twin motorcycles. BAKER™ shall have no warranty or liability obligation if BAKER™ parts are used in any other application.

If it is determined that a BAKER™ product has been disassembled during the warranty period for any reason, this limited warranty will no longer apply unless you were instructed to do so by a BAKER Drivetrain technician for diagnostic purposes.

The words H-D®, Softail®, FXR®, Dyna®, FLT®, FLH®, Sportster®, and Buell® are registered trademarks and are for reference only.

Bully primary cover for 2007-up Harley-Davidson touring motorcycles
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Bully primary cover for 2007-up Harley-Davidson touring motorcycles Bully primary cover for 2007-up Harley-Davidson touring motorcycles Bully primary cover for 2007-up Harley-Davidson touring motorcycles Bully Primary Cover Bully Primary Cover Bully Primary Cover

Customer Reviews

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Billy G.
United States United States


The Bully is way better than stock.

Frank C.
United States

Awesome product

Just upgraded my 2015 Harley Davidson CVO Streetglide with Baker DD7 ,Baker Compensator/w attitude manual chain adjuster and Baker Bully primary cover! All I can say is WOW ! Trans is super quiet . And turned my bike into a sport bike feel riding in the mountains. And Hiway. Truly an exhilarating ride Now! And also the Baker comp sprocket is also very quiet. Bully Cover is a piece of artwork! Thanks again Baker your products are A 10! Would highly recommend! Frank Cerrone C.A.

Frank C. verified customer review of Bully Primary CoverFrank C. verified customer review of Bully Primary CoverFrank C. verified customer review of Bully Primary Cover
Frank V.
United States

primary cover

this primary cover not only looks good it makes it easy to access for service as well ....baker never disappoints

Web Product ID: 4683395267
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