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Harley Engine

Harley Engine

Harley Engine

Harley Bike Engine Parts at JJ Motorsports

Rebuild and boost your Harley's engine with premium parts from JJ Motorsports. Our inventory features complete gasket sets, piston kits, oil filters, pushrod tubes, and coolers designed for maximum strength, leak-free sealing, and high-performance in extreme conditions. Compatible with Big Twins, Softail, Touring, and more, these components support top-end overhauls, oil management, and durability for street rides or custom builds.

Shop trusted brands like Drag Specialties for magnetic filters and Wiseco for forged pistons. Explore related categories such as Harley air and fuel for carb tuning or Harley drivetrain for transmission upgrades.

Top Harley Engine Products

Browse our in-stock inventory below with same-day shipping and expert support. Questions? Contact us for fitment advice!

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • ANDREWS Cam - M464 - M8 217464

    ANDREWS Cam - M464 - M8 217464

    ANDREWS

    $268.95
    ANDREWS Cam - M464 - M8
    09251206
    SKU:
    09251206
    Availability:
    Ships Same Business Day
    Weight:
    1.86 LBS
    EXHAUST OPEN IMPERIAL:
    50°
    EXHAUST DURATION IMPERIAL:
    230°
    EXHAUST LOBE CENTERLINE IMPERIAL:
    115°
    INTAKE DURATION IMPERIAL:
    210°
    EXHAUST CLOSE IMPERIAL:
    00°
    EXHAUST LIFT AT TDC IMPERIAL:
    0.080'
    EXHAUST LIFT IMPERIAL:
    0.460'
    INTAKE CLOSE IMPERIAL:
    24°
    INTAKE LOBE CENTERLINE IMPERIAL:
    099°
    RIDING STYLE:
    STREET
    INTAKE LIFT AT TDC IMPERIAL:
    0.106'
    INTAKE LIFT IMPERIAL:
    0.464'
    INTAKE OPEN IMPERIAL:
    6°
    MODEL:
    M464
    PRODUCT NAME:
    CAMSHAFT KIT
    UNITS:
    KIT
    $268.95
    Qty in Cart: 0
    Quantity:
    Price:
    $268.95
    Subtotal:
  • ANDREWS Cam - TS550 Indian 111 - 2013+ 269150

    ANDREWS Cam - TS550 Indian 111 - 2013+ 269150

    ANDREWS

    $763.95
    With four valve heads and 106 cubic inches, more power is readily available
    09251272
    SKU:
    09251272
    Availability:
    Ships Same Business Day
    Weight:
    3.65 LBS
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    PRODUCT NAME:
    CAMSHAFT
    GRIND:
    TS550
    $763.95
    Qty in Cart: 0
    Quantity:
    Price:
    $763.95
    Subtotal:
  • ANDREWS Cam - TS570 Indian 111 - 2013+ 269170

    ANDREWS Cam - TS570 Indian 111 - 2013+ 269170

    ANDREWS

    $763.95
    With four valve heads and 106 cubic inches, more power is readily available
    09251273
    SKU:
    09251273
    Availability:
    Ships Same Business Day
    Weight:
    3.60 LBS
    PRODUCT NAME:
    CAMSHAFT
    GRIND:
    TS570
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    $763.95
    Qty in Cart: 0
    Quantity:
    Price:
    $763.95
    Subtotal:
  • ANDREWS TW57 Grind Cam - Twin Cam 288157

    ANDREWS TW57 Grind Cam - Twin Cam 288157

    ANDREWS

    $415.95
    Bolt-in broad tip cams; 96" , 103" Limited and 110" CVO engines, Cams work best at rpm range of 2200-5600
    09251275
    SKU:
    09251275
    Availability:
    Ships Same Business Day
    Weight:
    3.00 LBS
    APPLICATION:
    EXHAUST
    EXHAUST LIFT AT TDC IMPERIAL:
    0.153'
    UNITS:
    EACH
    EXHAUST LIFT IMPERIAL:
    0.560'
    INTAKE LIFT IMPERIAL:
    0.560'
    APPLICATION:
    INTAKE
    RIDING STYLE:
    STREET
    GRIND:
    TW57
    INTAKE LIFT AT TDC IMPERIAL:
    0.184'
    PRODUCT NAME:
    CAMSHAFT
    $415.95
    Qty in Cart: 0
    Quantity:
    Price:
    $415.95
    Subtotal:
  • ANDREWS Cam - M520 - M8 217520

    ANDREWS Cam - M520 - M8 217520

    ANDREWS

    $268.95
    Made in the U.S.A.
    09251365
    SKU:
    09251365
    Availability:
    Ships Same Business Day
    Weight:
    1.85 LBS
    APPLICATION:
    EXHAUST
    APPLICATION:
    INTAKE
    INTAKE DURATION IMPERIAL:
    228°
    INTAKE LIFT AT TDC IMPERIAL:
    0.115'
    UNITS:
    EACH
    INTAKE OPEN IMPERIAL:
    8°
    EXHAUST LIFT AT TDC IMPERIAL:
    0.094'
    EXHAUST LIFT IMPERIAL:
    0.520'
    EXHAUST OPEN IMPERIAL:
    64°
    INTAKE LIFT IMPERIAL:
    0.520'
    MODEL:
    M520
    RIDING STYLE:
    STREET
    EXHAUST CLOSE IMPERIAL:
    4°
    EXHAUST DURATION IMPERIAL:
    248°
    PRODUCT NAME:
    CAMSHAFT
    $268.95
    Qty in Cart: 0
    Quantity:
    Price:
    $268.95
    Subtotal:
  • ANDREWS Performance Cam 269122

    ANDREWS Performance Cam 269122

    ANDREWS

    $900.95
    ANDREWS Performance Cam
    09251366
    SKU:
    09251366
    Availability:
    Ships Same Business Day
    Weight:
    5.15 LBS
    PRODUCT NAME:
    CAM
    UNITS:
    EACH
    RIDING STYLE:
    STREET
    $900.95
    Qty in Cart: 0
    Quantity:
    Price:
    $900.95
    Subtotal:
  • ALLOY ART Compression Release Adapter - 14 mm x 3/4" CRA-1

    ALLOY ART Compression Release Adapter - 14 mm x 3/4" CRA-1

    ALLOY ART

    $20.95
    Designed to be used in twin plug heads, Fit into the additional spark plug hole, eliminating the dual plug function, Made in the U.S.A.
    09500080
    SKU:
    09500080
    Availability:
    Ships Same Business Day
    Weight:
    0.19 LBS
    TYPE:
    COMPRESSION RELEASE
    UNITS:
    EACH
    PRODUCT NAME:
    ADAPTER
    CONNECTOR ANGLE:
    STRAIGHT
    SIZE:
    14 MM - 3/4'
    RIDING STYLE:
    STREET
    $20.95
    Qty in Cart: 0
    Quantity:
    Price:
    $20.95
    Subtotal:
  • FEULING OIL PUMP CORP. Beehive Valve Spring Kit - M8 1107

    FEULING OIL PUMP CORP. Beehive Valve Spring Kit - M8 1107

    FEULING OIL PUMP CORP.

    $419.95
    Made from premium stress-relieved conical ovate wire, Feature extremely high-level of fatigue life, Use a much smaller and lighter weight retainer to reduce valve weight and create quicker rev and smoother motion, Designed to handle the demands of...
    09262973
    SKU:
    09262973
    Availability:
    Ships Same Business Day
    Weight:
    1.26 LBS
    PRODUCT NAME:
    SPRING
    RIDING STYLE:
    STREET
    STYLE:
    OVATE WIRE BEEHIVE
    MATERIAL:
    CHROME-SILICON
    MODEL:
    ENDURANCE BEEHIVE
    TYPE:
    VALVE
    UNITS:
    KIT
    $419.95
    Qty in Cart: 0
    Quantity:
    Price:
    $419.95
    Subtotal:
  • FEULING OIL PUMP CORP. Beehive Valve Spring Kit - M8 1108

    FEULING OIL PUMP CORP. Beehive Valve Spring Kit - M8 1108

    FEULING OIL PUMP CORP.

    $609.95
    Made from premium stress-relieved conical ovate wire, Feature extremely high-level of fatigue life, Use a much smaller and lighter weight retainer to reduce valve weight and create quicker rev and smoother motion, Designed to handle the demands of...
    09262974
    SKU:
    09262974
    Availability:
    Ships Same Business Day
    Weight:
    1.26 LBS
    UNITS:
    KIT
    MATERIAL:
    TITANIUM
    STYLE:
    OVATE WIRE BEEHIVE
    MATERIAL:
    CHROME-SILICON
    PRODUCT NAME:
    SPRING
    TYPE:
    VALVE
    MODEL:
    ENDURANCE BEEHIVE
    RIDING STYLE:
    STREET
    $609.95
    Qty in Cart: 0
    Quantity:
    Price:
    $609.95
    Subtotal:
  • FEULING OIL PUMP CORP. Valve Locks - M8 1215

    FEULING OIL PUMP CORP. Valve Locks - M8 1215

    FEULING OIL PUMP CORP.

    $59.95
    Offset locks raise retainer to gain .050" installed height, Titanium locks are offset 10 degrees, Made in the U.S.A.
    09262976
    SKU:
    09262976
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MATERIAL:
    STEEL
    PRODUCT NAME:
    LOCK
    TYPE:
    VALVE
    UNITS:
    KIT
    RIDING STYLE:
    STREET
    STEM DIAMETER METRIC:
    6.00 MM
    $59.95
    Qty in Cart: 0
    Quantity:
    Price:
    $59.95
    Subtotal:
  • FEULING OIL PUMP CORP. Crankshaft Bearing Race Kit - Twin Cam & M8 5205 FEULING OIL PUMP CORP. Crankshaft Bearing Race Kit - Twin Cam & M8 5205

    FEULING OIL PUMP CORP. Crankshaft Bearing Race Kit - Twin Cam & M8 5205

    FEULING OIL PUMP CORP.

    $89.95
    Kit includes right and left side crankshaft races with the left side thrust washers, These Feuling press on races have a precision ground outer diameter finish and are designed to be true to size producing the correct OD after proper press on installation
    09210787
    SKU:
    09210787
    Availability:
    Ships Same Business Day
    Weight:
    0.76 LBS
    FEATURES:
    TWIN CAM B ENGINES
    PRODUCT NAME:
    CRANKSHAFT BEARING RACE KIT
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    $89.95
    Qty in Cart: 0
    Quantity:
    Price:
    $89.95
    Subtotal:
  • FEULING OIL PUMP CORP. Support Plate - Twin Cam 8000

    FEULING OIL PUMP CORP. Support Plate - Twin Cam 8000

    FEULING OIL PUMP CORP.

    $379.95
    Feuling® HIGH FLOW cam plates for T/C® engines increase engine oil flow and volume by enlarging the oil pump reservoirs and critical oil passages, including matching the oil port holes throughout the cam plate to the port holes in the engine case...
    09200006
    SKU:
    09200006
    Availability:
    Ships Same Business Day
    Weight:
    2.26 LBS
    BASE COLOR:
    RED
    TYPE:
    GEAR
    UNITS:
    EACH
    COLOR/FINISH:
    RED
    RIDING STYLE:
    STREET
    MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    SUPPORT PLATE
    $379.95
    Qty in Cart: 0
    Quantity:
    Price:
    $379.95
    Subtotal:
  • FEULING OIL PUMP CORP. Outer Cam Bearings 2075 FEULING OIL PUMP CORP. Outer Cam Bearings 2075

    FEULING OIL PUMP CORP. Outer Cam Bearings 2075

    FEULING OIL PUMP CORP.

    $49.95
    Outer camshaft/camplate bearings are single-row deep groove bearings manufactured by Timken® Fafnir® and are a necessity where tough applications and conditions apply, Manufactured by Koyo® Torrington®, Made in the U.S.A.
    09240238
    SKU:
    09240238
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    PRODUCT NAME:
    BEARING
    STYLE:
    GEAR DRIVE
    TYPE:
    BALL
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    PAIR
    APPLICATION:
    CAMSHAFT
    $49.95
    Qty in Cart: 0
    Quantity:
    Price:
    $49.95
    Subtotal:
  • FEULING OIL PUMP CORP. Inner Cam Bearings 2077 FEULING OIL PUMP CORP. Inner Cam Bearings 2077

    FEULING OIL PUMP CORP. Inner Cam Bearings 2077

    FEULING OIL PUMP CORP.

    $42.95
    Inner cam bearings are heavy-duty full-complement style designed to accept the higher loads and demands of performance engines, Manufactured by Koyo® Torrington®, Made in the U.S.A.
    09240240
    SKU:
    09240240
    Availability:
    Ships Same Business Day
    Weight:
    0.16 LBS
    TYPE:
    NEEDLE
    RIDING STYLE:
    STREET
    UNITS:
    PAIR
    APPLICATION:
    CAMSHAFT
    PRODUCT NAME:
    BEARING
    $42.95
    Qty in Cart: 0
    Quantity:
    Price:
    $42.95
    Subtotal:
  • FEULING OIL PUMP CORP. 472 Cam - Chain Drive - Race Series - Oil Cooled - M8 7261

    FEULING OIL PUMP CORP. 472 Cam - Chain Drive - Race Series - Oil Cooled - M8 7261

    FEULING OIL PUMP CORP.

    $1,979.95
    Feuling® complete camchest kits include all necessary components from top to bottom of the camchest conveniently packaged under one part, These combination kits not only ensure each individual part is designed to work and function together, but to do so...
    09251330
    SKU:
    09251330
    Availability:
    Ships Same Business Day
    Weight:
    10.41 LBS
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    CAMCHEST KIT
    UNITS:
    KIT
    APPLICATION:
    EXHAUST
    FEATURES:
    OIL COOLED
    TYPE:
    CHAIN
    APPLICATION:
    INTAKE
    $1,979.95
    Qty in Cart: 0
    Quantity:
    Price:
    $1,979.95
    Subtotal:
  • FEULING OIL PUMP CORP. Cam - 405 - M8 1340

    FEULING OIL PUMP CORP. Cam - 405 - M8 1340

    FEULING OIL PUMP CORP.

    $319.95
    Produces a wide powerband that increases torque and horsepower throughout the entire RPM range, Direct bolt-in replacement for M-Eight engines; can be used with stock valve springs, pushrods, lifters and exhaust, Will respond well when used with slip-on...
    09251163
    SKU:
    09251163
    Availability:
    Ships Same Business Day
    Weight:
    1.86 LBS
    EXHAUST CLOSE IMPERIAL:
    11°
    EXHAUST DURATION IMPERIAL:
    205°
    EXHAUST LIFT IMPERIAL:
    0.405'
    INTAKE LIFT IMPERIAL:
    0.395'
    APPLICATION:
    INTAKE
    INTAKE CLOSE IMPERIAL:
    24°
    RIDING STYLE:
    STREET
    EXHAUST OPEN IMPERIAL:
    36°
    GRIND:
    405 SERIES
    INTAKE OPEN IMPERIAL:
    4°
    APPLICATION:
    EXHAUST
    INTAKE DURATION IMPERIAL:
    200°
    MODEL:
    REAPER
    PRODUCT NAME:
    CAM
    TYPE:
    CHAIN
    UNITS:
    EACH
    $319.95
    Qty in Cart: 0
    Quantity:
    Price:
    $319.95
    Subtotal:
  • FEULING OIL PUMP CORP. Cam - 465 - M8 1343

    FEULING OIL PUMP CORP. Cam - 465 - M8 1343

    FEULING OIL PUMP CORP.

    $319.95
    Produces solid bottom-end performance and substantial gains above 2800 RPM compared to the stock cams, Direct bolt-in replacement for M-Eight engines; can be used with stock valve springs, pushrods, lifters and exhaust, Will respond well when used with...
    09251164
    SKU:
    09251164
    Availability:
    Ships Same Business Day
    Weight:
    1.86 LBS
    EXHAUST DURATION IMPERIAL:
    236°
    GRIND:
    465 SERIES
    APPLICATION:
    EXHAUST
    INTAKE LIFT IMPERIAL:
    0.445'
    INTAKE OPEN IMPERIAL:
    4°
    APPLICATION:
    INTAKE
    EXHAUST CLOSE IMPERIAL:
    6°
    INTAKE CLOSE IMPERIAL:
    23°
    RIDING STYLE:
    STREET
    EXHAUST LIFT IMPERIAL:
    0.465'
    EXHAUST OPEN IMPERIAL:
    50°
    INTAKE DURATION IMPERIAL:
    207°
    MODEL:
    REAPER
    PRODUCT NAME:
    CAM
    TYPE:
    CHAIN
    UNITS:
    EACH
    $319.95
    Qty in Cart: 0
    Quantity:
    Price:
    $319.95
    Subtotal:
  • FEULING OIL PUMP CORP. Race Oil Pump with Plate - M8 7197 FEULING OIL PUMP CORP. Race Oil Pump with Plate - M8 7197

    FEULING OIL PUMP CORP. Race Oil Pump with Plate - M8 7197

    FEULING OIL PUMP CORP.

    $929.95
    Increase oil pressure, oil volume, engine oil flow and return oil scavenging, Quieter and smoother engine operation, 15-25 degree cooler engine temperatures, 15-30 degree cooler oil temperatures, 10-30 more psi of oil pressure, Reduces wet sumping, blow...
    09251256
    SKU:
    09251256
    Availability:
    Ships Same Business Day
    Weight:
    4.66 LBS
    BASE COLOR:
    RED
    PRODUCT NAME:
    PUMP
    RIDING STYLE:
    STREET
    TYPE:
    OIL
    COLOR/FINISH:
    RED
    UNITS:
    KIT
    $929.95
    Qty in Cart: 0
    Quantity:
    Price:
    $929.95
    Subtotal:
  • FEULING OIL PUMP CORP. Camchest Kit - HP+‚® - Twin Cam 7220 FEULING OIL PUMP CORP. Camchest Kit - HP+‚® - Twin Cam 7220

    FEULING OIL PUMP CORP. Camchest Kit - HP+‚® - Twin Cam 7220

    FEULING OIL PUMP CORP.

    $1,939.95
    All necessary components from top-to-bottom of the camchest, Provide maximum reliability, longevity, peak performance, and the coolest engine and oil temperatures obtainable, Quieter and smoother engine operation, Increase oil pressure, scavenge volume...
    09251289
    SKU:
    09251289
    Availability:
    Ships Same Business Day
    Weight:
    13.76 LBS
    APPLICATION:
    INTAKE
    EXHAUST DURATION IMPERIAL:
    236°
    INTAKE LIFT IMPERIAL:
    0.525'
    PRODUCT NAME:
    CAMCHEST KIT
    APPLICATION:
    EXHAUST
    EXHAUST OPEN IMPERIAL:
    51°
    GRIND:
    525 SERIES
    INTAKE OPEN IMPERIAL:
    4°
    EXHAUST CLOSE IMPERIAL:
    5°
    EXHAUST LIFT IMPERIAL:
    0.535'
    INTAKE CLOSE IMPERIAL:
    42°
    INTAKE DURATION IMPERIAL:
    226°
    MODEL:
    HP+®
    UNITS:
    KIT
    RIDING STYLE:
    STREET
    TYPE:
    CHAIN CONVERSION
    $1,939.95
    Qty in Cart: 0
    Quantity:
    Price:
    $1,939.95
    Subtotal:
  • GARDNER-WESTCOTT Oil Gauge Elbow Fitting - 1/8" NPT 7-100PE-2

    GARDNER-WESTCOTT Oil Gauge Elbow Fitting - 1/8" NPT 7-100PE-2

    GARDNER-WESTCOTT

    $14.95
    Oil Gauge fittings for 1/8" NPT
    DS245210
    SKU:
    DS245210
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    PRODUCT NAME:
    FITTING
    TYPE:
    OIL GAUGE
    STYLE:
    ELBOW
    COLOR/FINISH:
    CHROME
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    $14.95
    Qty in Cart: 0
    Quantity:
    Price:
    $14.95
    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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