Harley Transmission Covers
Harley-Davidson Transmission Covers at JJ Motorsports
Shield your Harley's primary and transmission with premium covers from JJ Motorsports, featuring chrome and black finishes for classic style and durability on Big Twin, Evo, and Twin Cam models. These billet and cast covers protect internals while adding custom flair.
Shop Paughco, Thrashin Supply Co, and Drag Specialties transmission covers for proven quality. Explore related categories such as Harley drivetrain for clutch and chains, or Harley for exhaust and seats to complete your build.
Top Harley-Davidson Transmission Covers
- Paughco Outer Primary Cover B750 – Cast aluminum outer primary cover; vintage-style for Big Twin models with clean fit.
- Thrashin Supply Co Derby Cover Black Classic TSC-3000-4 – Black classic derby cover; CNC-machined for Evo and Twin Cam with hidden fasteners.
- Drag Specialties Outer Primary Cover Chrome Narrow Profile 77957 – Chrome narrow primary cover; low-profile for custom Softail and Dyna builds.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
DRAG SPECIALTIES 5-Hole - Gold - Live to Ride Derby Cover 33-0065GA
DRAG SPECIALTIES
$90.59Feature a detailed plated eagle and banner, Script is recessed11070158- SKU:
- 11070158
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- COLOR/FINISH:
- GOLD
- MOUNTING STYLE:
- 5 HOLE
- STYLE:
- EAGLE WITH BANNER
- MODEL:
- LIVE TO RIDE
- PRODUCT NAME:
- DERBY COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$90.59 -
DRAG SPECIALTIES Sprocket Cover - Chrome - '04-'19 XL D26-0409C
DRAG SPECIALTIES
$106.04High-quality cast aluminum construction, Mount with existing OEM mounting hardware11070279- SKU:
- 11070279
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- COVER
- TYPE:
- SPROCKET
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$106.04 -
DRAG SPECIALTIES Sprocket Cover - Polished - '86-'90 XL 26-0406
DRAG SPECIALTIES
$98.83High-quality cast aluminum construction, Mount with existing OEM mounting hardware11070282- SKU:
- 11070282
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- COLOR/FINISH:
- POLISHED
- PRODUCT NAME:
- COVER
- TYPE:
- SPROCKET
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$98.83Qty in Cart: 0Quantity:Price:$98.83Subtotal: -
DRAG SPECIALTIES Outer Primary Cover - Chrome - '07-'17 Softail D11-0298
DRAG SPECIALTIES
$520.10Rugged, die-cast aluminum construction, Starter shaft bushings included; seals and other components must be ordered separately to complete installation11070324- SKU:
- 11070324
- Availability:
- Ships Same Business Day
- Weight:
- 7.99 LBS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- CHROME
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- COVER
- TYPE:
- OUTER PRIMARY
- UNITS:
- EACH
$520.10 -
DRAG SPECIALTIES Primary Plug - 1/8 NPT" 11-0291-P
DRAG SPECIALTIES
$18.49Zinc finish11070326- SKU:
- 11070326
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- ZINC
- UNITS:
- EACH
- PRODUCT NAME:
- DRAIN PLUG
- RIDING STYLE:
- STREET
$18.49 -
DRAG SPECIALTIES Black Inspection Cover D33-0115WB
DRAG SPECIALTIES
$31.88Machined from billet aluminum11070487- SKU:
- 11070487
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- PRODUCT NAME:
- INSPECTION COVER
- TYPE:
- PRIMARY
- COLOR/FINISH:
- BLACK
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- STREET
- UNITS:
- KIT
$31.88 -
DRAG SPECIALTIES Polished Inspection Cover D33-0115P
DRAG SPECIALTIES
$29.82Machined from billet aluminum11070488- SKU:
- 11070488
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- INSPECTION COVER
- TYPE:
- PRIMARY
- UNITS:
- KIT
- COLOR/FINISH:
- POLISHED
- RIDING STYLE:
- STREET
$29.82 -
DRAG SPECIALTIES Chrome Derby Cover D33-0110
DRAG SPECIALTIES
$109.13Die-cast construction with a domed design, Includes mounting hardware, '06 Dyna Glide and all '07-'18 Big Twin (except '16-'18 Dressers, '15 FLHTCUL/ FLHTKL, '18 FLSB) applications will require the use of gasket part 0934-0289 or 0934-0788.11070489- SKU:
- 11070489
- Availability:
- Ships Same Business Day
- Weight:
- 1.16 LBS
- MOUNTING STYLE:
- 5 HOLE
- COLOR/FINISH:
- CHROME
- MATERIAL:
- ALUMINUM
- MATERIAL:
- DIE-CAST
- PRODUCT NAME:
- DERBY COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$109.13 -
DRAG SPECIALTIES Inspection Cover - Chrome - '85-'06 FLT 33-0029
DRAG SPECIALTIES
$46.30Chrome-plated steel construction, Uses OEM hardware and gasket, For use with forward controls11070390- SKU:
- 11070390
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- COLOR/FINISH:
- CHROME
- MATERIAL:
- STEEL
- UNITS:
- EACH
- MOUNTING STYLE:
- 4 HOLE
- PRODUCT NAME:
- INSPECTION COVER
- RIDING STYLE:
- STREET
- TYPE:
- PRIMARY
$46.30 -
DRAG SPECIALTIES Primary Plug - 1/2"-20 D11-0301-P
DRAG SPECIALTIES
$20.55Zinc finish11070340- SKU:
- 11070340
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- COLOR/FINISH:
- ZINC
- PRODUCT NAME:
- DRAIN PLUG
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$20.55 -
DRAG SPECIALTIES Outer Primary Cover - Black - '99-'06 Softail 11-0296KDSSB
DRAG SPECIALTIES
$400.62Rugged, die-cast aluminum construction, Starter shaft bushings included; seals and other components must be ordered separately to complete installation11070359- SKU:
- 11070359
- Availability:
- Ships Same Business Day
- Weight:
- 8.50 LBS
- COLOR/FINISH:
- SATIN BLACK
- UNITS:
- EACH
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- COVER
- TYPE:
- OUTER PRIMARY
$400.62 -
DRAG SPECIALTIES Outer Primary Cover - Black - '95-'98 Softail 11-0293KDSSB
DRAG SPECIALTIES
$400.62Rugged, die-cast aluminum construction, Starter shaft bushings included; seals and other components must be ordered separately to complete installation11070360- SKU:
- 11070360
- Availability:
- Ships Same Business Day
- Weight:
- 8.45 LBS
- MATERIAL:
- ALUMINUM
- TYPE:
- OUTER PRIMARY
- COLOR/FINISH:
- SATIN BLACK
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$400.62 -
DRAG SPECIALTIES Outer Primary Cover - Black - '89-'93 Softail 11-0291KDSSB
DRAG SPECIALTIES
$397.53Rugged, die-cast aluminum construction, Starter shaft bushings included; seals and other components must be ordered separately to complete installation11070361- SKU:
- 11070361
- Availability:
- Ships Same Business Day
- Weight:
- 8.54 LBS
- MATERIAL:
- ALUMINUM
- TYPE:
- OUTER PRIMARY
- COLOR/FINISH:
- SATIN BLACK
- UNITS:
- EACH
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
$397.53 -
DRAG SPECIALTIES Satin Black Derby Cover 33-0054SB
DRAG SPECIALTIES
$63.81Die-cast construction with a domed design, Includes mounting hardware, '06 Dyna Glide and all '07-'18 Big Twin (except '16-'18 Dressers, '15 FLHTCUL/ FLHTKL, '18 FLSB) applications will require the use of gasket part 0934-0289 or 0934-0788.11070363- SKU:
- 11070363
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MATERIAL:
- ALUMINUM
- MATERIAL:
- DIE-CAST
- MOUNTING STYLE:
- 5 HOLE
- COLOR/FINISH:
- SATIN BLACK
- UNITS:
- EACH
- PRODUCT NAME:
- DERBY COVER
- RIDING STYLE:
- STREET
$63.81 -
DRAG SPECIALTIES Matte Black Derby Cover 33-0017KSB
DRAG SPECIALTIES
$47.33Die-cast construction with a domed design, Includes mounting hardware, '06 Dyna Glide and all '07-'18 Big Twin (except '16-'18 Dressers, '15 FLHTCUL/ FLHTKL, '18 FLSB) applications will require the use of gasket part 0934-0289 or 0934-0788.11070365- SKU:
- 11070365
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MOUNTING STYLE:
- 3 HOLE
- COLOR/FINISH:
- MATTE BLACK
- RIDING STYLE:
- STREET
- MATERIAL:
- ALUMINUM
- MATERIAL:
- DIE-CAST
- PRODUCT NAME:
- DERBY COVER
- UNITS:
- EACH
$47.33 -
DRAG SPECIALTIES Wrinkle Black Derby Cover 33-0016KWB
DRAG SPECIALTIES
$44.24Die-cast construction with a domed design, Includes mounting hardware, '06 Dyna Glide and all '07-'18 Big Twin (except '16-'18 Dressers, '15 FLHTCUL/ FLHTKL, '18 FLSB) applications will require the use of gasket part 0934-0289 or 0934-0788.11070366- SKU:
- 11070366
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- PRODUCT NAME:
- DERBY COVER
- UNITS:
- EACH
- MATERIAL:
- ALUMINUM
- MOUNTING STYLE:
- 4 HOLE
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- WRINKLE BLACK
- MATERIAL:
- DIE-CAST
$44.24 -
DRAG SPECIALTIES Satin Black Derby Cover 33-0016KSB
DRAG SPECIALTIES
$47.33Die-cast construction with a domed design, Includes mounting hardware, '06 Dyna Glide and all '07-'18 Big Twin (except '16-'18 Dressers, '15 FLHTCUL/ FLHTKL, '18 FLSB) applications will require the use of gasket part 0934-0289 or 0934-0788.11070367- SKU:
- 11070367
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- DERBY COVER
- MOUNTING STYLE:
- 4 HOLE
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- SATIN BLACK
- MATERIAL:
- ALUMINUM
- MATERIAL:
- DIE-CAST
- UNITS:
- EACH
$47.33 -
DRAG SPECIALTIES Transmission Cover - Black I30-0212SB
DRAG SPECIALTIES
$129.73Mount with existing hardware, Not for use with hydraulic clutch.11070368- SKU:
- 11070368
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- SATIN
- MATERIAL:
- ZINC
- MOUNTING STYLE:
- 6 HOLE
- TYPE:
- TRANSMISSION SIDE
- RIDING STYLE:
- STREET
$129.73 -
DRAG SPECIALTIES Chrome Derby Cover 33-0054
DRAG SPECIALTIES
$63.81Die-cast construction with a domed design, Includes mounting hardware, '06 Dyna Glide and all '07-'18 Big Twin (except '16-'18 Dressers, '15 FLHTCUL/ FLHTKL, '18 FLSB) applications will require the use of gasket part 0934-0289 or 0934-0788.11070047- SKU:
- 11070047
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- MOUNTING STYLE:
- 5 HOLE
- COLOR/FINISH:
- CHROME
- MATERIAL:
- ALUMINUM
- MATERIAL:
- DIE-CAST
- PRODUCT NAME:
- DERBY COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$63.81 -
DRAG SPECIALTIES Chrome Inspection Cover D33-0115C
DRAG SPECIALTIES
$36.00Machined from billet aluminum11070486- SKU:
- 11070486
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- CHROME
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- INSPECTION COVER
- UNITS:
- KIT
- TYPE:
- PRIMARY
$36.00
Buying Guide and FAQs
Buying Guide: Factors to Consider When Choosing Harley Bike Transmission Covers
- Compatibility: Ensure covers fit your Harley's model (e.g., Big Twin, Evo, Twin Cam, custom Softail/Dyna) and specifics like mounting holes (e.g., 8-hole for derby, 2-hole for inspection). Use the vehicle selector for year-specific matches to avoid fit issues.
- Type of Use: For aesthetic upgrades or custom looks, opt for derby/inspection covers; primary covers (inner/outer) suit protection and style in street riding; clutch actuators ideal for hydraulic systems in touring conditions.
- Components and Upgrades: Select derby covers with see-through windows or hidden fasteners, primary covers for narrow profiles, or actuators with banjo bolts. Focus on included hardware (e.g., bleeder screws) for complete installation.
- Brand and Quality: Choose PAUGHCO for chrome/black primary covers, Thrashin Supply Co for CNC-machined derby covers, Drag Specialties for narrow profile primaries, PRO-ONE PERF.MFG. for ball-milled/millennium derby covers, or TRASK for see-through assault covers. Prioritize cast/billet aluminum for durability and corrosion resistance.
- Installation and Cost: Most are bolt-on using OEM bolts; prices range from $28.95 for inspection covers to $317.95 for outer primaries—factor in finishes (chrome, black, gloss) and free shipping over $99 for value.
Frequently Asked Questions (FAQs)
- What Harley models do these transmission covers support? Covers support Big Twin, Evo, Twin Cam, and custom Softail/Dyna models—use the year/make/model filter for exact compatibility with stock H-D or aftermarket primaries.
- How do derby covers improve style? Designs like ball-milled, smooth, or see-through windows (e.g., TRASK with acrylic) add custom aesthetics with 8-hole mounting for easy swaps.
- What is typically included with clutch actuators? Actuators like PRO-ONE include 10mm banjo bolt, washers, bleeder screw—require separate 11/16" bore master cylinder and hydraulic line.
- What materials are used in covers? Primarily cast aluminum or billet aluminum with chrome, black (gloss/anodized), or raw finishes for style and durability.
- What if a cover doesn't fit my Harley? Verify mounting style (e.g., 8-hole derby, 2-hole inspection) and model before buying. Our returns policy allows exchanges or refunds if it doesn't match.
- Can I find related drivetrain parts? Yes—explore clutches, belts, sprockets, or full kits in the Harley drivetrain category to complement your transmission cover upgrade.
