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Harley Engine Covers

Harley Engine Covers

Harley Engine Covers

Harley Bike Engine Covers at JJ Motorsports

Dress your Harley’s engine with premium billet and machined covers from JJ Motorsports, featuring chrome and black finishes for custom style and perfect fit on Twin Cam, M8, and Evo models. These high-quality cam covers, point covers, and derby covers add aggressive looks while protecting internals.

Shop Trask, Rough Crafts, and Thrashin Supply Co engine covers for race-inspired design. Explore related categories such as Harley engine for cams and lifters, or Harley for primary and derby covers to complete your custom engine build.

Top Harley Engine Covers

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
  • THRASHIN SUPPLY CO. Cam Cover - Gen 2 - Smooth - Chrome - M8 TSC-3028-3 THRASHIN SUPPLY CO. Cam Cover - Gen 2 - Smooth - Chrome - M8 TSC-3028-3

    THRASHIN SUPPLY CO. Cam Cover - Gen 2 - Smooth - Chrome - M8 TSC-3028-3

    THRASHIN SUPPLY CO.

    $119.95
    A cam cover serves as both a functional engine component and a visual centerpiece on your M8's top end. This Thrashin Supply Co. Gen 2 design combines practical engineering—slim profile and cut-away...
    09402219
    SKU:
    09402219
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    $119.95
    Qty in Cart: 0
    Quantity:
    Price:
    $119.95
    Subtotal:
  • THRASHIN SUPPLY CO. Cam Cover - Gen 2 - Finned - Chrome - M8 TSC-3029-3 THRASHIN SUPPLY CO. Cam Cover - Gen 2 - Finned - Chrome - M8 TSC-3029-3

    THRASHIN SUPPLY CO. Cam Cover - Gen 2 - Finned - Chrome - M8 TSC-3029-3

    THRASHIN SUPPLY CO.

    $129.95
    A cam cover isn't just a cosmetic piece—it protects your engine's valvetrain while adding visual definition to your top end. The Thrashin Supply Co. Gen 2 Finned cam cover delivers clean styling with...
    09402220
    SKU:
    09402220
    Availability:
    Ships Same Business Day
    Weight:
    0.50 LBS
    $129.95
    Qty in Cart: 0
    Quantity:
    Price:
    $129.95
    Subtotal:
  • THRASHIN SUPPLY CO. Cam Cover - Gen 2 - Finned - Twice Cut - Black - M8 TSC-3029-4 THRASHIN SUPPLY CO. Cam Cover - Gen 2 - Finned - Twice Cut - Black - M8 TSC-3029-4

    THRASHIN SUPPLY CO. Cam Cover - Gen 2 - Finned - Twice Cut - Black - M8 TSC-3029-4

    THRASHIN SUPPLY CO.

    $119.95
    A cam cover is more than just a dress-up piece—it protects your engine's valve train while managing heat dissipation and maintaining a clean engine bay aesthetic. The Thrashin Supply Co. Gen 2 Finned...
    09402221
    SKU:
    09402221
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $119.95
    Subtotal:
  • FIGURATI DESIGNS Timing Cover - 2 Hole - Sugar Skull - Polished - Stainless Steel FD30-TC-2H-SS FIGURATI DESIGNS Timing Cover - 2 Hole - Sugar Skull - Polished - Stainless Steel FD30-TC-2H-SS

    FIGURATI DESIGNS Timing Cover - 2 Hole - Sugar Skull - Polished - Stainless Steel FD30-TC-2H-SS

    FIGURATI DESIGNS

    $122.95
    A timing cover isn't just functional—it's the first thing onlookers notice when they peer at your engine bay. The FIGURATI DESIGNS Timing Cover combines precision engineering with distinctive...
    09402162
    SKU:
    09402162
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    COLOR/FINISH:
    CHROME
    MATERIAL:
    316L STAINLESS STEEL
    PRODUCT NAME:
    COVER
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    COLOR/FINISH:
    POLISHED
    COLOR/FINISH:
    MULTI
    TYPE:
    TIMING
    $122.95
    Qty in Cart: 0
    Quantity:
    Price:
    $122.95
    Subtotal:
  • DRAG SPECIALTIES ROCKER BOX SHOVEL POL 89736

    DRAG SPECIALTIES ROCKER BOX SHOVEL POL 89736

    DRAG SPECIALTIES

    $784.35
    A quality rocker box is essential for maintaining proper valve train geometry and oil distribution in your Shovel engine. This Drag Specialties unit delivers OEM-level precision with the durability...
    09402015
    SKU:
    09402015
    Availability:
    Ships Same Business Day
    Weight:
    0.92 LBS
    COLOR/FINISH:
    POLISHED
    PRODUCT NAME:
    COVER
    RIDING STYLE:
    STREET
    TYPE:
    ROCKER BOX
    UNITS:
    EACH
    $784.35
    Qty in Cart: 0
    Quantity:
    Price:
    $784.35
    Subtotal:
  • DRAG SPECIALTIES ROCKER BOX SHOVEL CHR 80455

    DRAG SPECIALTIES ROCKER BOX SHOVEL CHR 80455

    DRAG SPECIALTIES

    $1,004.83
    Rocker boxes are critical to your Shovel's valve train integrity, and a quality replacement or upgrade directly impacts reliability and oil circulation efficiency. DRAG SPECIALTIES delivers...
    09402016
    SKU:
    09402016
    Availability:
    Ships Same Business Day
    Weight:
    9.06 LBS
    TYPE:
    ROCKER BOX
    COLOR/FINISH:
    CHROME
    PRODUCT NAME:
    COVER
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $1,004.83
    Subtotal:
  • On Sale
    PRO-ONE PERF.MFG. Millen Point Cover - Big Twin 202110

    PRO-ONE PERF.MFG. Millen Point Cover - Big Twin 202110

    PRO-ONE PERF.MFG.

    MSRP: $54.95
    Now: $49.46
    Was: $54.95
    A quality point cover does more than protect your ignition system—it's a foundational element of engine reliability and aesthetic presentation. The PRO-ONE PERF.MFG. Millen Point Cover delivers...
    DS373964
    SKU:
    DS373964
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    PRODUCT NAME:
    COVER
    UNITS:
    EACH
    TYPE:
    POINT
    COLOR/FINISH:
    CHROME
    MATERIAL:
    ALUMINUM
    MODEL:
    MILLENNIUM
    RIDING STYLE:
    STREET
    MSRP: $54.95
    Now: $49.46
    Was: $54.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $54.95
    Now: $49.46
    Was: $54.95
    Subtotal:
  • TRASK Assault Cam Cover - Chrome - M8 TM-018CH

    TRASK Assault Cam Cover - Chrome - M8 TM-018CH

    TRASK

    $429.95
    The TRASK Assault Cam Cover lets you display your engine's internal machining while maintaining the clean aesthetic of the Assault air cleaner series. Chrome plating delivers corrosion resistance and...
    09401871
    SKU:
    09401871
    Availability:
    Ships Same Business Day
    Weight:
    2.25 LBS
    RIDING STYLE:
    STREET
    COLOR/FINISH:
    CHROME
    PRODUCT NAME:
    COVER
    TYPE:
    CAM
    UNITS:
    EACH
    $429.95
    Qty in Cart: 0
    Quantity:
    Price:
    $429.95
    Subtotal:
  • TRASK Assault Cam Cover - Raw - Twin Cam TM-017R

    TRASK Assault Cam Cover - Raw - Twin Cam TM-017R

    TRASK

    $429.95
    If you're running a Twin Cam engine with the TRASK Assault air cleaner system, a matching cam cover completes both the aesthetic and functional integrity of your top-end setup. The transparent design...
    09401848
    SKU:
    09401848
    Availability:
    Ships Same Business Day
    Weight:
    2.85 LBS
    COLOR/FINISH:
    MACHINED
    TYPE:
    CAM
    UNITS:
    EACH
    COLOR/FINISH:
    RAW
    PRODUCT NAME:
    COVER
    RIDING STYLE:
    STREET
    Qty in Cart: 0
    Quantity:
    Price:
    $429.95
    Subtotal:
  • TRASK Assault Cam Cover - Chrome - Twin Cam TM-017CH

    TRASK Assault Cam Cover - Chrome - Twin Cam TM-017CH

    TRASK

    $429.95
    A quality cam cover does more than protect—it completes your engine's aesthetic while maintaining visibility of internal components you've invested in. The TRASK Assault Cam Cover delivers the visual...
    09401849
    SKU:
    09401849
    Availability:
    Ships Same Business Day
    Weight:
    2.80 LBS
    COLOR/FINISH:
    CHROME
    PRODUCT NAME:
    COVER
    TYPE:
    CAM
    UNITS:
    EACH
    RIDING STYLE:
    STREET
    $429.95
    Qty in Cart: 0
    Quantity:
    Price:
    $429.95
    Subtotal:
  • TRASK Assault Cam Cover - Black - Twin Cam TM-017BK

    TRASK Assault Cam Cover - Black - Twin Cam TM-017BK

    TRASK

    $429.95
    Engine covers aren't just about aesthetics—they protect your twin cam from debris and heat while giving you real-time visibility into valve train operation. The TRASK Assault Cam Cover delivers the...
    09401850
    SKU:
    09401850
    Availability:
    Ships Same Business Day
    Weight:
    2.90 LBS
    PRODUCT NAME:
    COVER
    COLOR/FINISH:
    BLACK
    TYPE:
    CAM
    UNITS:
    EACH
    COLOR/FINISH:
    GLOSS
    RIDING STYLE:
    STREET
    $429.95
    Qty in Cart: 0
    Quantity:
    Price:
    $429.95
    Subtotal:
  • TRASK Assault Cam Cover - Black - M8 TM-018BK

    TRASK Assault Cam Cover - Black - M8 TM-018BK

    TRASK

    $429.95
    Engine bay aesthetics matter when you're running a quality build, and the TRASK Assault Cam Cover delivers both visual appeal and functional clarity. This transparent cover lets you monitor internal...
    09401872
    SKU:
    09401872
    Availability:
    Ships Same Business Day
    Weight:
    2.35 LBS
    COLOR/FINISH:
    GLOSS
    PRODUCT NAME:
    COVER
    RIDING STYLE:
    STREET
    COLOR/FINISH:
    BLACK
    TYPE:
    CAM
    UNITS:
    EACH
    $429.95
    Qty in Cart: 0
    Quantity:
    Price:
    $429.95
    Subtotal:
  • SLYFOX COVER TIMING M8 MATTE CF 12056M

    SLYFOX COVER TIMING M8 MATTE CF 12056M

    SLYFOX

    $64.95
    Protect your M8 engine's timing cover while adding genuine carbon fiber aesthetic to your build. The SLYFOX timing cover combines lightweight durability with a refined matte finish that complements...
    09402030
    SKU:
    09402030
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    COLOR/FINISH:
    MATTE
    PRODUCT NAME:
    COVER
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    TYPE:
    TIMING
    $64.95
    Qty in Cart: 0
    Quantity:
    Price:
    $64.95
    Subtotal:
  • ROUGH CRAFTS Black Cam Cover - Grooved RC-610-002

    ROUGH CRAFTS Black Cam Cover - Grooved RC-610-002

    ROUGH CRAFTS

    $359.95
    A quality cam cover does more than protect your valve train—it's a visible statement of your build's attention to detail. The ROUGH CRAFTS Black Cam Cover combines precision CNC machining with the...
    09401958
    SKU:
    09401958
    Availability:
    Ships Same Business Day
    Weight:
    1.66 LBS
    RIDING STYLE:
    STREET
    COLOR/FINISH:
    BLACK
    TYPE:
    CAM
    UNITS:
    EACH
    MATERIAL:
    BILLET ALUMINUM
    PRODUCT NAME:
    COVER
    STYLE:
    GROOVED
    $359.95
    Qty in Cart: 0
    Quantity:
    Price:
    $359.95
    Subtotal:
  • ROUGH CRAFTS Chrome Cam Cover - Grooved RC-610-003

    ROUGH CRAFTS Chrome Cam Cover - Grooved RC-610-003

    ROUGH CRAFTS

    $359.95
    A quality cam cover does more than protect your engine's internal components—it establishes visual presence while maintaining the precision fit your M8 demands. The ROUGH CRAFTS Chrome Cam Cover...
    09401959
    SKU:
    09401959
    Availability:
    Ships Same Business Day
    Weight:
    1.51 LBS
    TYPE:
    CAM
    UNITS:
    EACH
    COLOR/FINISH:
    CHROME
    PRODUCT NAME:
    COVER
    RIDING STYLE:
    STREET
    MATERIAL:
    BILLET ALUMINUM
    STYLE:
    GROOVED
    $359.95
    Qty in Cart: 0
    Quantity:
    Price:
    $359.95
    Subtotal:
  • THRASHIN SUPPLY CO. Point Cover - Dish - Polished - Twin Cam TSC-3026-2

    THRASHIN SUPPLY CO. Point Cover - Dish - Polished - Twin Cam TSC-3026-2

    THRASHIN SUPPLY CO.

    $59.95
    A polished point cover isn't just cosmetic—it protects your ignition system from moisture and debris while completing a finished engine bay aesthetic. For Twin Cam engines, this THRASHIN SUPPLY CO...
    09401716
    SKU:
    09401716
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    MATERIAL:
    BILLET ALUMINUM
    TYPE:
    POINT
    RIDING STYLE:
    STREET
    STYLE:
    DISHED
    COLOR/FINISH:
    POLISHED
    PRODUCT NAME:
    COVER
    UNITS:
    EACH
    $59.95
    Qty in Cart: 0
    Quantity:
    Price:
    $59.95
    Subtotal:
  • THRASHIN SUPPLY CO. Point Cover - Dish - Black - Twin Cam TSC-3026-4

    THRASHIN SUPPLY CO. Point Cover - Dish - Black - Twin Cam TSC-3026-4

    THRASHIN SUPPLY CO.

    $59.95
    A quality point cover protects your Twin Cam's ignition system from road grime, moisture, and debris while maintaining a clean, finished appearance in the engine bay. The Thrashin Supply Co. dish...
    09401717
    SKU:
    09401717
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    MATERIAL:
    BILLET ALUMINUM
    COLOR/FINISH:
    BLACK
    PRODUCT NAME:
    COVER
    UNITS:
    EACH
    RIDING STYLE:
    STREET
    STYLE:
    DISHED
    TYPE:
    POINT
    Qty in Cart: 0
    Quantity:
    Price:
    $59.95
    Subtotal:
  • THRASHIN SUPPLY CO. Point Cover - Polished - M8 TSC-3027-2 THRASHIN SUPPLY CO. Point Cover - Polished - M8 TSC-3027-2

    THRASHIN SUPPLY CO. Point Cover - Polished - M8 TSC-3027-2

    THRASHIN SUPPLY CO.

    $59.95
    A clean, professional engine bay starts with quality details—and your ignition system deserves better than a worn-out cover. The THRASHIN SUPPLY CO. Point Cover combines hand-polished aesthetics with...
    09401847
    SKU:
    09401847
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    MATERIAL:
    BILLET ALUMINUM
    PRODUCT NAME:
    COVER
    COLOR/FINISH:
    POLISHED
    UNITS:
    EACH
    RIDING STYLE:
    STREET
    STYLE:
    DISHED
    TYPE:
    POINT
    $59.95
    Qty in Cart: 0
    Quantity:
    Price:
    $59.95
    Subtotal:
  • THRASHIN SUPPLY CO. Point Cover - Black - M8 TSC-3027-4 THRASHIN SUPPLY CO. Point Cover - Black - M8 TSC-3027-4

    THRASHIN SUPPLY CO. Point Cover - Black - M8 TSC-3027-4

    THRASHIN SUPPLY CO.

    $59.95
    A quality point cover protects your M8's ignition system from road debris, moisture, and contamination while maintaining the clean aesthetic your bike deserves. This THRASHIN SUPPLY CO. cover...
    09401846
    SKU:
    09401846
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    PRODUCT NAME:
    COVER
    UNITS:
    EACH
    COLOR/FINISH:
    BLACK
    MATERIAL:
    BILLET ALUMINUM
    TYPE:
    POINT
    RIDING STYLE:
    STREET
    STYLE:
    DISHED
    $59.95
    Qty in Cart: 0
    Quantity:
    Price:
    $59.95
    Subtotal:
  • On Sale
    JOKER MACHINE Points Cover - Black/Chrome 02-99TC

    JOKER MACHINE Points Cover - Black/Chrome 02-99TC

    JOKER MACHINE

    MSRP: $72.95
    Now: $65.66
    Was: $72.95
    The JOKER MACHINE Points Cover delivers a clean, finished look to your ignition system while protecting critical components from debris and moisture. This CNC-machined cover combines aesthetic appeal...
    09400996
    SKU:
    09400996
    Availability:
    Ships Same Business Day
    Weight:
    0.22 LBS
    COLOR/FINISH:
    ANODIZED
    MATERIAL:
    BILLET ALUMINUM
    TYPE:
    POINT
    COLOR/FINISH:
    BLACK
    PRODUCT NAME:
    COVER
    RIDING STYLE:
    STREET
    STYLE:
    FINNED
    UNITS:
    EACH
    COLOR/FINISH:
    SILVER
    MSRP: $72.95
    Now: $65.66
    Was: $72.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $72.95
    Now: $65.66
    Was: $72.95
    Subtotal:
  • Total: items /

Adding your products to cart

Buying Guide and FAQs

Buying Guide: Factors to Consider When Choosing Harley Bike Engine Covers

  • Compatibility: Ensure covers fit your Harley's engine type (e.g., Twin Cam 1999-2017, M8, Evo, Shovel) and model (e.g., Road King, Softail, Sportster). Use the vehicle selector for year-specific matches (e.g., Twin Cam for Trask Assault, M8 for Slyfox timing) to avoid mounting issues.
  • Type of Use: For street riding or custom aesthetics, opt for cam/point covers with aggressive designs; touring benefits from durable rocker/spark plug covers for protection and style in varied conditions.
  • Components and Upgrades: Select cam covers (e.g., Assault/grooved), point covers (dish/finned), timing covers (matte carbon), rocker box covers (polished/chrome), or spark plug covers (finned). Focus on hardware inclusion and finishes for easy upgrades.
  • Brand and Quality: Choose Trask for Assault series, Rough Crafts for grooved designs, Thrashin Supply Co. for dish point covers, Drag Specialties for rocker/spark plug options, Pro-One Perf. Mfg. for ball-milled point covers, Slyfox for matte carbon timing, Joker Machine for finned point covers, or Feuling for 5-hole point covers. Prioritize billet aluminum or forged billet for durability and corrosion resistance.
  • Installation and Cost: Most are bolt-on with included hardware (e.g., stainless screws); prices range from $54.95 for point covers to $821.89 for rocker box sets—factor in made-in-USA quality and free shipping over $99 for value.

Frequently Asked Questions (FAQs)

  1. What Harley models do these engine covers support? Covers support models with Twin Cam (1999-2017), M8, Evo, Shovel, and Sportster engines—use the year/make/model filter for exact compatibility.
  2. How do cam covers improve engine aesthetics? Designs like Trask Assault with transparent windows or Rough Crafts grooved provide custom looks while allowing internal viewing.
  3. What finishes are available for covers? Options include chrome, black (anodized/powder coat), polished, raw/machined, or matte carbon fiber for style matching your build.
  4. Do these covers include installation hardware? Yes, most come with stainless steel fasteners or screws for easy bolt-on installation.
  5. What if a cover doesn't fit my Harley? Verify engine type, year, and design (e.g., 5-hole for point covers) before buying. Our returns policy allows exchanges or refunds if it doesn't match.
  6. Can I find related engine parts? Yes—explore gaskets, pistons, or cams in the Harley engine category to complement your cover upgrade for a complete refresh.

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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