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 Skull Derby Cover - Chrome - 3 Hole 33-0061-PC
DRAG SPECIALTIES
$78.23A quality derby cover does more than protect your engine—it completes your bike's visual identity while shielding critical components from debris and moisture. The DRAG Specialties Skull Derby Cover delivers authentic styling with robust die-cast...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
$95.74A quality derby cover serves as both functional engine protection and a statement piece on your cruiser. The DRAG Specialties Skull Derby Cover delivers aggressive styling with reliable die-cast construction that resists cracking and fading—essential if...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
$400.62A worn or damaged primary cover compromises both the aesthetic appeal and protective integrity of your Softail's drivetrain. This Drag Specialties outer primary cover restores factory appearance while safeguarding critical internal components from road...11070036- 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
$400.62A worn or damaged primary cover compromises both engine protection and the visual presentation of your Softail's drivetrain. This DRAG SPECIALTIES replacement restores OEM fitment and durability without fabrication, using die-cast aluminum construction...11070037- 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
$409.89A quality inner primary cover is essential for protecting your drivetrain components while maintaining a clean, finished appearance on your motorcycle. This die-cast aluminum cover delivers durability and corrosion resistance with a chrome-plated finish...11070038- 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
$407.83A worn or damaged inner primary cover compromises both the aesthetic appeal and protective function of your engine case. This Drag Specialties replacement restores OEM-level durability while maintaining a factory-correct appearance, ensuring your primary...11070045- 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
$109.13A primary cover isn't just protective—it's the first visual statement of your bike's character. The Drag Specialties 3 Hole Gold Live to Ride Derby Cover delivers authentic craftsmanship with its intricately detailed plated eagle and recessed script...11070156- 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
$113.25A quality sprocket cover protects your primary drive system from road debris, moisture, and contamination—critical for maintaining chain longevity and transmission reliability on your XL Sportster. The polished finish delivers a clean, finished look...11070280- 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
$109.13A sprocket cover protects your primary drivetrain from road debris, moisture, and contamination—critical for maintaining chain longevity and smooth power delivery on your Harley-Davidson XL. This cast aluminum cover combines durability with a polished...11070281- 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
$520.10The DRAG SPECIALTIES Outer Primary Cover protects your drivetrain's most critical components while delivering the polished look that separates a maintained bike from a neglected one. Die-cast aluminum construction provides durability and heat dissipation...11070325- 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
$18.49A primary drain plug is essential maintenance infrastructure for any serious engine builder or racer. This DRAG Specialties unit provides reliable fluid containment and drainage cycles after extended track sessions or high-load operation. The zinc finish...11070339- SKU:
- 11070339
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- COLOR/FINISH:
- ZINC
- UNITS:
- EACH
- PRODUCT NAME:
- DRAIN PLUG
- RIDING STYLE:
- STREET
$18.49Qty in Cart: 0Quantity:Price:$18.49Subtotal: -
DRAG SPECIALTIES Wrinkle Black Derby Cover 33-0054WB
DRAG SPECIALTIES
$63.81A quality derby cover protects your primary cover from road debris and weather while delivering the polished look your engine deserves. This Drag Specialties wrinkle black design combines durability with a clean aesthetic that complements any Big Twin...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
$63.81Qty in Cart: 0Quantity:Price:$63.81Subtotal: -
DRAG SPECIALTIES Inspection Cover - Matte Black 14009B
DRAG SPECIALTIES
$23.64A clean engine bay starts with attention to detail, and the DRAG Specialties Inspection Cover keeps your primary cover looking sharp while protecting critical engine components from debris and moisture. This matte black finish complements modern engine...11070376- 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
$23.64Qty in Cart: 0Quantity:Price:$23.64Subtotal: -
DRAG SPECIALTIES Gloss Black Derby Cover D33-0110GB
DRAG SPECIALTIES
$109.13A quality derby cover protects your engine's internal components from road debris and moisture while delivering a finished, polished appearance to your bike's top end. This gloss black cover combines die-cast durability with a clean domed profile that...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
$84.41A quality derby cover protects your primary cover from road debris and UV exposure while adding a finished aesthetic to your engine bay. This die-cast Drag Specialties cover combines durability with a sleek wrinkle black finish that complements modern...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
$75.14A polished derby cover transforms your engine's appearance while protecting critical internal components from contamination and debris. This die-cast chrome piece is built tough enough for the street or strip, delivering a finished look that complements...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
$75.14Qty in Cart: 0Quantity:Price:$75.14Subtotal: -
DRAG SPECIALTIES Chrome Derby Cover 33-0017K-BC427
DRAG SPECIALTIES
$51.45A derby cover serves as both protective hardware and a visual accent on your Big Twin engine—keeping debris and moisture away from critical internals while adding polish to your build. This Drag Specialties chrome piece delivers a factory-quality fit...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
$84.41A sprocket cover protects your primary drive system from road debris, moisture, and accidental contact while maintaining clean aesthetics on your cruiser. Cast aluminum construction offers lightweight durability without adding unnecessary weight to your...DS325288- 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
$31.88If you're building a motorcycle that reflects your personal style, details matter. This chrome inspection cover transforms a utilitarian engine component into a visual statement, combining functional protection with aesthetic appeal. The recessed eagle...DS325291- 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
$31.88 -
DRAG SPECIALTIES Transmission End Cover - Chrome - '36-'86 Big Twin 292070-BX-LB2
DRAG SPECIALTIES
$80.29A worn or damaged transmission end cover compromises both the appearance and integrity of your Big Twin's drivetrain. This Drag Specialties replacement restores factory protection while delivering that classic chrome finish that complements vintage and...DS325521- 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
$80.29Qty in Cart: 0Quantity:Price:$80.29Subtotal:
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.
