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
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DRAG SPECIALTIES Skull Derby Cover - Chrome - 3 Hole 33-0061-PC
DRAG SPECIALTIES
$78.23Die-cast construction, Skull protrudes outward about .750"19020062- SKU:
- 19020062
- Availability:
- Ships Same Business Day
- Weight:
- 0.98 LBS
- COLOR/FINISH:
- CHROME
- COLOR/FINISH:
- BLACK
- MATERIAL:
- ALUMINUM
- MOUNTING STYLE:
- 3 HOLE
- RIDING STYLE:
- STREET
- STYLE:
- 3-D SKULL
- PRODUCT NAME:
- DERBY COVER
- UNITS:
- EACH
$78.23 -
DRAG SPECIALTIES Skull Derby Cover - Chrome - 4 Hole 33-0063
DRAG SPECIALTIES
$95.74Die-cast construction, Skull protrudes outward about .750"11070034- SKU:
- 11070034
- Availability:
- Ships Same Business Day
- Weight:
- 1.12 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- ALUMINUM
- MOUNTING STYLE:
- 4 HOLE
- RIDING STYLE:
- STREET
- STYLE:
- 3-D SKULL
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- DERBY COVER
- UNITS:
- EACH
$95.74 -
DRAG SPECIALTIES Outer Primary Cover - Chrome - '99-'06 Softail 11-0296K
DRAG SPECIALTIES
$400.62Rugged, die-cast aluminum construction, Starter shaft bushings included; seals and other components must be ordered separately to complete installation11070036- SKU:
- 11070036
- Availability:
- Ships Same Business Day
- Weight:
- 8.68 LBS
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- TYPE:
- OUTER PRIMARY
- MATERIAL:
- ALUMINUM
- UNITS:
- EACH
$400.62 -
DRAG SPECIALTIES Outer Primary Cover - Chrome - '89-'93 Softail 11-0291K
DRAG SPECIALTIES
$400.62Rugged, die-cast aluminum construction, Starter shaft bushings included; seals and other components must be ordered separately to complete installation11070037- SKU:
- 11070037
- Availability:
- Ships Same Business Day
- Weight:
- 8.57 LBS
- COLOR/FINISH:
- CHROME
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- TYPE:
- OUTER PRIMARY
- UNITS:
- EACH
$400.62 -
DRAG SPECIALTIES Inner Primary Cover 11-0295K
DRAG SPECIALTIES
$409.89Rugged, die-cast aluminum construction with a chrome-plated finish, Starter shaft bushing included; seals and other components must be ordered separately to complete installation, Accept all OEM components11070038- SKU:
- 11070038
- Availability:
- Ships Same Business Day
- Weight:
- 11.42 LBS
- TYPE:
- INNER PRIMARY
- COLOR/FINISH:
- CHROME
- MATERIAL:
- ALUMINUM
- MATERIAL:
- DIE-CAST
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$409.89 -
DRAG SPECIALTIES Inner Primary Cover 11-0297K
DRAG SPECIALTIES
$407.83Rugged, die-cast aluminum construction with a chrome-plated finish, Starter shaft bushing included; seals and other components must be ordered separately to complete installation, Accept all OEM components11070045- SKU:
- 11070045
- Availability:
- Ships Same Business Day
- Weight:
- 11.75 LBS
- MATERIAL:
- ALUMINUM
- MATERIAL:
- DIE-CAST
- RIDING STYLE:
- STREET
- TYPE:
- INNER PRIMARY
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
$407.83 -
DRAG SPECIALTIES 3 Hole Gold Live to Ride Derby Cover 33-0010DA
DRAG SPECIALTIES
$109.13Feature a detailed plated eagle and banner, Script is recessed11070156- SKU:
- 11070156
- Availability:
- Ships Same Business Day
- Weight:
- 0.72 LBS
- COLOR/FINISH:
- GOLD
- COLOR/FINISH:
- SILVER
- PRODUCT NAME:
- DERBY COVER
- STYLE:
- EAGLE WITH BANNER
- MODEL:
- LIVE TO RIDE
- MOUNTING STYLE:
- 3 HOLE
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$109.13 -
DRAG SPECIALTIES Sprocket Cover - Polished - '91-'03 XL 26-0408
DRAG SPECIALTIES
$113.25High-quality cast aluminum construction, Mount with existing OEM mounting hardware11070280- SKU:
- 11070280
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- COLOR/FINISH:
- POLISHED
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- MATERIAL:
- ALUMINUM
- UNITS:
- EACH
- TYPE:
- SPROCKET
$113.25 -
DRAG SPECIALTIES Sprocket Cover - Chrome - '91-'03 XL 26-0408C
DRAG SPECIALTIES
$109.13High-quality cast aluminum construction, Mount with existing OEM mounting hardware11070281- SKU:
- 11070281
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- RIDING STYLE:
- STREET
- TYPE:
- SPROCKET
- COLOR/FINISH:
- CHROME
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
$109.13 -
DRAG SPECIALTIES Outer Primary Cover - Chrome - '06-'17 FXD D11-0299
DRAG SPECIALTIES
$520.10Rugged, die-cast aluminum construction, Starter shaft bushings included; seals and other components must be ordered separately to complete installation11070325- SKU:
- 11070325
- Availability:
- Ships Same Business Day
- Weight:
- 8.15 LBS
- MATERIAL:
- ALUMINUM
- TYPE:
- OUTER PRIMARY
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$520.10 -
DRAG SPECIALTIES Primary Plug - 5/16"-18 11-0298P
DRAG SPECIALTIES
$18.49Zinc finish11070339- SKU:
- 11070339
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- COLOR/FINISH:
- ZINC
- UNITS:
- EACH
- PRODUCT NAME:
- DRAIN PLUG
- RIDING STYLE:
- STREET
$18.49 -
DRAG SPECIALTIES Wrinkle Black Derby Cover 33-0054WB
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 0934-0788.11070362- SKU:
- 11070362
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- COLOR/FINISH:
- WRINKLE BLACK
- MATERIAL:
- DIE-CAST
- MOUNTING STYLE:
- 5 HOLE
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- DERBY COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$63.81 -
DRAG SPECIALTIES Inspection Cover - Matte Black 14009B
DRAG SPECIALTIES
$23.64Machined from steel11070376- SKU:
- 11070376
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- COLOR/FINISH:
- MATTE BLACK
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- INSPECTION COVER
- TYPE:
- PRIMARY
- MOUNTING STYLE:
- 4 HOLE
- UNITS:
- EACH
- MATERIAL:
- STEEL
$23.64 -
DRAG SPECIALTIES Gloss Black Derby Cover D33-0110GB
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 0934-0788.11070556- SKU:
- 11070556
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- COLOR/FINISH:
- GLOSS BLACK
- PRODUCT NAME:
- DERBY COVER
- UNITS:
- EACH
- MATERIAL:
- ALUMINUM
- MATERIAL:
- DIE-CAST
- RIDING STYLE:
- STREET
- MOUNTING STYLE:
- 5 HOLE
$109.13 -
DRAG SPECIALTIES Wrinkle Black Derby Cover D33-0110WB
DRAG SPECIALTIES
$84.41Die-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 0934-0788.11070558- SKU:
- 11070558
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- COLOR/FINISH:
- WRINKLE BLACK
- MOUNTING STYLE:
- 5 HOLE
- MATERIAL:
- ALUMINUM
- MATERIAL:
- DIE-CAST
- PRODUCT NAME:
- DERBY COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$84.41 -
DRAG SPECIALTIES Chrome Derby Cover 33-0067
DRAG SPECIALTIES
$75.14Die-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 0934-0788.11070006- SKU:
- 11070006
- Availability:
- Ships Same Business Day
- Weight:
- 1.06 LBS
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- DERBY COVER
- UNITS:
- EACH
- MATERIAL:
- DIE-CAST
- MOUNTING STYLE:
- 6 HOLE
$75.14 -
DRAG SPECIALTIES Chrome Derby Cover 33-0017K-BC427
DRAG SPECIALTIES
$51.45Die-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.DS375650- SKU:
- DS375650
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- COLOR/FINISH:
- CHROME
- MATERIAL:
- DIE-CAST
- MOUNTING STYLE:
- 3 HOLE
- RIDING STYLE:
- STREET
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- DERBY COVER
- UNITS:
- EACH
$51.45 -
DRAG SPECIALTIES Sprocket Cover - Chrome - '86-'90 XL 301780-HC12
DRAG SPECIALTIES
$84.41High-quality cast aluminum construction, Mount with existing OEM mounting hardwareDS325288- SKU:
- DS325288
- Availability:
- Ships Same Business Day
- Weight:
- 2.06 LBS
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- TYPE:
- SPROCKET
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
$84.41 -
DRAG SPECIALTIES Chrome Inspection Cover 33-0007H-BC216
DRAG SPECIALTIES
$31.88Chrome-plated eagle and the "Eagle Spirit" script recessed into cover surfaceDS325291- SKU:
- DS325291
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- COLOR/FINISH:
- CHROME
- STYLE:
- EAGLE SPIRIT
- UNITS:
- EACH
- MOUNTING STYLE:
- 4 HOLE
- RIDING STYLE:
- STREET
- TYPE:
- PRIMARY
- PRODUCT NAME:
- INSPECTION COVER
$31.88Qty in Cart: 0Quantity:Price:$31.88Subtotal: -
DRAG SPECIALTIES Transmission End Cover - Chrome - '36-'86 Big Twin 292070-BX-LB2
DRAG SPECIALTIES
$80.29Replacement end coverDS325521- SKU:
- DS325521
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- TYPE:
- TRANSMISSION END
- MOUNTING STYLE:
- 8 HOLE
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
$80.29
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.
