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Harley Miscellaneous Engine Parts

Harley Miscellaneous Engine Parts

Harley Miscellaneous Engine Parts

Harley Bike Miscellaneous Engine Parts at JJ Motorsports

Complete your Harley's engine rebuild with premium miscellaneous parts from JJ Motorsports, featuring chrome fittings, sprocket spacers, and oil screens for reliable lubrication and precise assembly on Big Twin, Evo, Shovelhead, and Panhead models. These high-quality components ensure leak-free operation and long-term durability.

Shop Gardner Westcott and Eastern Motorcycle Parts engine parts for OEM-spec reliability. Explore related categories such as Harley engine for cams and gaskets, or Harley for exhaust and drivetrain to finish your build.

Top Harley Miscellaneous Engine Parts

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
  • On Sale
    S&S CYCLE Sprocket Spacer - Big Twin 31-4011

    S&S CYCLE Sprocket Spacer - Big Twin 31-4011

    S&S CYCLE

    MSRP: $40.95
    Now: $36.86
    Was: $40.95
    If you're running S&S Super Stock® or Special Application Crankcases, precise sprocket alignment is critical to maintaining chain tension and preventing premature wear on your drivetrain. This OEM S&S Cycle sprocket spacer ensures your sprocket sits at...
    09500885
    SKU:
    09500885
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    RIDING STYLE:
    STREET
    COLOR/FINISH:
    NATURAL
    PRODUCT NAME:
    SPACER
    UNITS:
    EACH
    BASE FINISH:
    NATURAL
    TYPE:
    COUNTERBALANCE SHAFT
    MSRP: $40.95
    Now: $36.86
    Was: $40.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $40.95
    Now: $36.86
    Was: $40.95
    Subtotal:
  • On Sale
    S&S CYCLE Key 106-1348

    S&S CYCLE Key 106-1348

    S&S CYCLE

    MSRP: $9.95
    Now: $8.96
    Was: $9.95
    Proper ignition timing depends on a secure crankshaft key that won't slip under load. The S&S Cycle 106-1348 is a precision-engineered steel key designed for reliable engine management in high-performance applications. This U.S.-manufactured component...
    09500805
    SKU:
    09500805
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    COLOR/FINISH:
    STEEL
    MATERIAL:
    STEEL
    PRODUCT NAME:
    KEY
    UNITS:
    EACH
    RIDING STYLE:
    STREET
    TYPE:
    PARALLEL
    MSRP: $9.95
    Now: $8.96
    Was: $9.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $9.95
    Now: $8.96
    Was: $9.95
    Subtotal:
  • On Sale
    S&S CYCLE Cam Chain Install Kit - M8 330-0619

    S&S CYCLE Cam Chain Install Kit - M8 330-0619

    S&S CYCLE

    MSRP: $49.95
    Now: $44.96
    Was: $49.95
    Servicing your Twin Cam cam drive system requires precision and the right tools—this S&S Cycle kit eliminates guesswork by bundling every component you need for a successful installation or replacement. Whether you're upgrading to a performance cam or...
    09500861
    SKU:
    09500861
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    PRODUCT NAME:
    INSTALL KIT
    TYPE:
    CAM
    UNITS:
    KIT
    RIDING STYLE:
    STREET
    STYLE:
    CHAIN DRIVE
    MSRP: $49.95
    Now: $44.96
    Was: $49.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $49.95
    Now: $44.96
    Was: $49.95
    Subtotal:
  • On Sale
    S&S CYCLE Cam Gear Install Kit - M8 330-0623

    S&S CYCLE Cam Gear Install Kit - M8 330-0623

    S&S CYCLE

    MSRP: $61.95
    Now: $55.76
    Was: $61.95
    Servicing or replacing your Twin Cam cam drive requires precision components and complete hardware—this kit eliminates multiple supplier orders and ensures you have everything needed for a professional installation. Whether you're transitioning from...
    09500862
    SKU:
    09500862
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    TYPE:
    CAM
    PRODUCT NAME:
    INSTALL KIT
    RIDING STYLE:
    STREET
    STYLE:
    GEAR DRIVE
    UNITS:
    KIT
    MSRP: $61.95
    Now: $55.76
    Was: $61.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $61.95
    Now: $55.76
    Was: $61.95
    Subtotal:
  • On Sale
    S&S CYCLE Pinion Gear - Undersized - Twin Cam/M8 330-0626

    S&S CYCLE Pinion Gear - Undersized - Twin Cam/M8 330-0626

    S&S CYCLE

    MSRP: $132.95
    Now: $119.66
    Was: $132.95
    If you're running gear-driven cams on your Twin Cam or M8 Harley, precise pinion gear sizing is critical to achieving proper valve train geometry and minimizing noise. This S&S undersized pinion gear set gives you the adjustment range needed to dial in...
    09500863
    SKU:
    09500863
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    RIDING STYLE:
    STREET
    TYPE:
    PINION SHAFT GEAR
    UNITS:
    EACH
    PRODUCT NAME:
    GEAR
    SIZE:
    UNDERSIZE
    MSRP: $132.95
    Now: $119.66
    Was: $132.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $132.95
    Now: $119.66
    Was: $132.95
    Subtotal:
  • DRAG SPECIALTIES Rocker Cover Chrome - Evo/Big Twin 33-0082A-BXLB2

    DRAG SPECIALTIES Rocker Cover Chrome - Evo/Big Twin 33-0082A-BXLB2

    DRAG SPECIALTIES

    $351.87
    A leaking rocker cover isn't just messy—it's a sign of gasket failure that'll compromise your engine's reliability and leave oil residue all over your motor. The DRAG Specialties chrome rocker cover replaces worn or damaged originals with...
    DS376502
    SKU:
    DS376502
    Availability:
    Ships Same Business Day
    Weight:
    4.25 LBS
    COLOR/FINISH:
    CHROME
    PRODUCT NAME:
    ROCKER BOX KIT
    RIDING STYLE:
    STREET
    TYPE:
    ROCKER BOX
    BASE FINISH:
    CHROME
    UNITS:
    KIT
    $351.87
    Qty in Cart: 0
    Quantity:
    Price:
    $351.87
    Subtotal:
  • DRAG SPECIALTIES Rocker Cover Top - Chrome - Big Twin 33-0082AGCBXLB2

    DRAG SPECIALTIES Rocker Cover Top - Chrome - Big Twin 33-0082AGCBXLB2

    DRAG SPECIALTIES

    $117.61
    A leaking rocker cover gasket will compromise engine sealing and create an oil-weeping mess that invites contamination and corrosion. This Drag Specialties rocker cover top delivers exact OEM dimensions and precision manufacturing to restore a bone-dry...
    DS376556
    SKU:
    DS376556
    Availability:
    Ships Same Business Day
    Weight:
    1.35 LBS
    UNITS:
    EACH
    PRODUCT NAME:
    TOP COVER
    MOUNTING POSITION:
    TOP
    TYPE:
    ROCKER BOX
    BASE FINISH:
    CHROME
    COLOR/FINISH:
    CHROME
    RIDING STYLE:
    STREET
    $117.61
    Qty in Cart: 0
    Quantity:
    Price:
    $117.61
    Subtotal:
  • On Sale
    S&S CYCLE Cam Drive Gear - Twin Cam/M8 330-0621

    S&S CYCLE Cam Drive Gear - Twin Cam/M8 330-0621

    S&S CYCLE

    MSRP: $252.95
    Now: $227.66
    Was: $252.95
    If you're running gear-driven cams on your Twin Cam or M8 Harley, you need a reliable cam drive gear set that delivers precise timing and durability. This S&S Cycle two-gear set provides the outer cam drive gear and pinion gear necessary to complete your...
    09500866
    SKU:
    09500866
    Availability:
    Ships Same Business Day
    Weight:
    1.25 LBS
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    TYPE:
    OUTER
    PRODUCT NAME:
    GEAR KIT
    TYPE:
    CAM
    MSRP: $252.95
    Now: $227.66
    Was: $252.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $252.95
    Now: $227.66
    Was: $252.95
    Subtotal:
  • On Sale
    S&S CYCLE Intake Stock Manifold O-Ring 16-0236

    S&S CYCLE Intake Stock Manifold O-Ring 16-0236

    S&S CYCLE

    MSRP: $10.95
    Now: $9.86
    Was: $10.95
    A worn or degraded intake manifold O-ring compromises your engine's ability to maintain proper fuel-air mixture and can lead to vacuum leaks that rob horsepower and create rough idle conditions. The S&S Cycle stock replacement O-ring restores a...
    10030457
    SKU:
    10030457
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    TYPE:
    INTAKE MANIFOLD
    PRODUCT NAME:
    O-RING
    RIDING STYLE:
    STREET
    MODEL:
    STOCK
    UNITS:
    EACH
    MSRP: $10.95
    Now: $9.86
    Was: $10.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $10.95
    Now: $9.86
    Was: $10.95
    Subtotal:
  • PAUGHCO Right Tool Box Mount - Softail 403C2

    PAUGHCO Right Tool Box Mount - Softail 403C2

    PAUGHCO

    $69.95
    Proper footpeg clearance is essential when running a right-side toolbox on your Softail—cramped foot positioning compromises control and comfort during extended rides. This PAUGHCO mount solves that problem with a precision spacer and extended bolt...
    DS273664
    SKU:
    DS273664
    Availability:
    Ships Same Business Day
    Weight:
    1.38 LBS
    RIDING STYLE:
    STREET
    TYPE:
    TOOLBOX
    COLOR/FINISH:
    CHROME
    MOUNTING POSITION:
    RIGHT
    UNITS:
    KIT
    PRODUCT NAME:
    MOUNTING KIT
    BASE FINISH:
    CHROME
    Qty in Cart: 0
    Quantity:
    Price:
    $69.95
    Subtotal:
  • ALLOY ART Compression Release Adapter - 12 mm x 3/4" CRA-3

    ALLOY ART Compression Release Adapter - 12 mm x 3/4" CRA-3

    ALLOY ART

    $20.95
    If you're running a twin plug head but only need single spark plug ignition, this adapter eliminates unnecessary complexity without removing your hardware. The ALLOY ART Compression Release Adapter provides a clean, permanent solution for blocking off...
    09500082
    SKU:
    09500082
    Availability:
    Ships Same Business Day
    Weight:
    0.19 LBS
    PRODUCT NAME:
    ADAPTER
    TYPE:
    COMPRESSION RELEASE
    UNITS:
    EACH
    CONNECTOR ANGLE:
    STRAIGHT
    RIDING STYLE:
    STREET
    SIZE:
    12 MM - 3/4'
    Qty in Cart: 0
    Quantity:
    Price:
    $20.95
    Subtotal:
  • GARDNER-WESTCOTT 1/8" NPT Inverted Flare - Female - Zinc 7-W250-3X2

    GARDNER-WESTCOTT 1/8" NPT Inverted Flare - Female - Zinc 7-W250-3X2

    GARDNER-WESTCOTT

    $13.95
    Reliable hydraulic and pneumatic connections demand fittings you can trust under pressure. This Gardner-Westcott inverted flare fitting delivers leak-free performance with precision engineering and domestic manufacturing. Built to withstand demanding...
    DS245278
    SKU:
    DS245278
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    CONNECTOR ANGLE:
    STRAIGHT
    PRODUCT NAME:
    FITTING
    COLOR/FINISH:
    CHROME
    CONNECTION TYPE:
    3/8' HOSE FITTING
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    CONNECTION TYPE:
    1/8' NPT (MALE)
    TYPE:
    OIL TANK
    Qty in Cart: 0
    Quantity:
    Price:
    $13.95
    Subtotal:
  • EASTERN MOTORCYCLE PARTS Lock Tab Washer A-33362-52

    EASTERN MOTORCYCLE PARTS Lock Tab Washer A-33362-52

    EASTERN MOTORCYCLE PARTS

    $10.60
    Transmission work demands precision hardware—overlooking lock tab washers during rebuild or service is a guaranteed path to fastener failure and catastrophic drivetrain damage. The Eastern Motorcycle Parts Lock Tab Washer A-33362-52 is engineered to...
    09500411
    SKU:
    09500411
    Availability:
    Ships Same Business Day
    Weight:
    0.14 LBS
    PRODUCT NAME:
    WASHER
    TYPE:
    LOCK TAB
    UNITS:
    10 PACK
    RIDING STYLE:
    STREET
    Qty in Cart: 0
    Quantity:
    Price:
    $10.60
    Subtotal:
  • EASTERN MOTORCYCLE PARTS Crankcase Roller Bearings A-9263-12

    EASTERN MOTORCYCLE PARTS Crankcase Roller Bearings A-9263-12

    EASTERN MOTORCYCLE PARTS

    $14.95
    Crankcase roller bearings are critical to engine longevity, reducing friction between rotating components and preventing catastrophic bearing failure under sustained load. Eastern Motorcycle Parts' A-9263-12 delivers precision engineering with domestic...
    09500533
    SKU:
    09500533
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    RIDING STYLE:
    STREET
    SIZE:
    OVERSIZE (+0,0004')
    TYPE:
    ROLLER
    UNITS:
    12 PACK
    PRODUCT NAME:
    BEARING
    SIZE IMPERIAL:
    OVERSIZE (+0.0004')
    $14.95
    Qty in Cart: 0
    Quantity:
    Price:
    $14.95
    Subtotal:
  • EASTERN MOTORCYCLE PARTS Oil Line O-6-084

    EASTERN MOTORCYCLE PARTS Oil Line O-6-084

    EASTERN MOTORCYCLE PARTS

    $75.95
    Reliable oil line routing is critical to maintaining proper lubrication pressure and preventing system degradation in high-performance applications. The EASTERN MOTORCYCLE PARTS Oil Line O-6-084 delivers dependable flow management with...
    09500538
    SKU:
    09500538
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    MATERIAL:
    STEEL
    BASE FINISH:
    CHROME
    COLOR/FINISH:
    CHROME
    RIDING STYLE:
    STREET
    STYLE:
    FEED LINE
    TYPE:
    OIL
    PRODUCT NAME:
    LINE KIT
    UNITS:
    EACH
    $75.95
    Qty in Cart: 0
    Quantity:
    Price:
    $75.95
    Subtotal:
  • EASTERN MOTORCYCLE PARTS Sprocket Shaft Spacer Softail A-24039-01A EASTERN MOTORCYCLE PARTS Sprocket Shaft Spacer Softail A-24039-01A

    EASTERN MOTORCYCLE PARTS Sprocket Shaft Spacer Softail A-24039-01A

    EASTERN MOTORCYCLE PARTS

    $45.95
    A worn or damaged sprocket shaft spacer compromises chain alignment and accelerates wear on your drivetrain components. This Eastern Motorcycle Parts spacer ensures precise spacing and concentricity, maintaining optimal chain tension and extending the...
    09500229
    SKU:
    09500229
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    PRODUCT NAME:
    SHAFT SPACER
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    TYPE:
    SPROCKET
    $45.95
    Qty in Cart: 0
    Quantity:
    Price:
    $45.95
    Subtotal:
  • EASTERN MOTORCYCLE PARTS Crankcase Roller Bearings A-9265-12 EASTERN MOTORCYCLE PARTS Crankcase Roller Bearings A-9265-12

    EASTERN MOTORCYCLE PARTS Crankcase Roller Bearings A-9265-12

    EASTERN MOTORCYCLE PARTS

    $14.95
    Crankcase roller bearings are critical to maintaining precise crankshaft alignment and minimizing rotational friction in your engine. A worn or damaged bearing directly impacts power delivery, increases parasitic losses, and can lead to catastrophic...
    09500331
    SKU:
    09500331
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    SIZE:
    OVERSIZE (+0,0008')
    SIZE IMPERIAL:
    OVERSIZE (+0.0008')
    RIDING STYLE:
    STREET
    TYPE:
    ROLLER
    UNITS:
    12 PACK
    PRODUCT NAME:
    BEARING
    $14.95
    Qty in Cart: 0
    Quantity:
    Price:
    $14.95
    Subtotal:
  • EASTERN MOTORCYCLE PARTS Right Case Bushing A-24599-40

    EASTERN MOTORCYCLE PARTS Right Case Bushing A-24599-40

    EASTERN MOTORCYCLE PARTS

    $124.95
    A worn or damaged case bushing compromises your motorcycle's structural integrity and can lead to misalignment issues that affect engine performance and longevity. This OEM-specification Eastern Motorcycle Parts bushing restores proper fit and clearance...
    09500335
    SKU:
    09500335
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    PRODUCT NAME:
    BUSHING
    RIDING STYLE:
    STREET
    TYPE:
    CRANKCASE
    SIZE:
    STANDARD
    MOUNTING POSITION:
    RIGHT
    SIZE IMPERIAL:
    STANDARD
    UNITS:
    EACH
    $124.95
    Qty in Cart: 0
    Quantity:
    Price:
    $124.95
    Subtotal:
  • EASTERN MOTORCYCLE PARTS Right Bearing Washer A-24692-58

    EASTERN MOTORCYCLE PARTS Right Bearing Washer A-24692-58

    EASTERN MOTORCYCLE PARTS

    $13.40
    Bearing washers are critical wear components that maintain proper axle endplay and protect bearing races from lateral forces. This OEM-spec washer ensures your motorcycle's wheel bearings seat correctly, preventing premature wear and potential bearing...
    09500363
    SKU:
    09500363
    Availability:
    Ships Same Business Day
    Weight:
    0.12 LBS
    MOUNTING POSITION:
    RIGHT
    TYPE:
    CRANKCASE BEARING
    UNITS:
    5 PACK
    PRODUCT NAME:
    WASHER
    RIDING STYLE:
    STREET
    $13.40
    Qty in Cart: 0
    Quantity:
    Price:
    $13.40
    Subtotal:
  • Jims Forceflow Cylinder Head Cooler Mount for 2013 Harley-Davidson FLHTCUSE8 5457

    Jims Forceflow Cylinder Head Cooler Mount for 2013 Harley-Davidson FLHTCUSE8 5457

    JIMS

    $62.55
    Sustained high-performance riding demands reliable engine cooling, and the JIMS Forceflow Cylinder Head Cooler Mount delivers precision airflow management for your 110" motor. This bolt-on mount integrates seamlessly into your cooling system, reducing...
    09500605
    SKU:
    09500605
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    MOUNT
    TYPE:
    CYLINDER HEAD COOLER
    UNITS:
    EACH
    COLOR/FINISH:
    CHROME
    PRODUCT NAME:
    ADAPTER
    $62.55
    Qty in Cart: 0
    Quantity:
    Price:
    $62.55
    Subtotal:
  • Total: items /

Adding your products to cart

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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