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
- DRAG SPECIALTIES Magnetic Ring Oil Filter - Chrome - 3-1/4" 140003HP-BX18 – Captures metal particles with pressure relief.
- WISECO Piston Kit .010 .883 XL K1656 – Forged aluminum with rings, pins, and circlips for rebuilds.
- DRAG SPECIALTIES Pushrod Tube Kit Big Twin 75711 – Includes tubes, clips, cups, and springs for complete engine.
- ULTRACOOL Below Regulator Mount Oil Cooler Stainless Steel RF-2CSS – Fits S&S 111/124/143 engines with machined adapter.
- PAUGHCO Ribbed Teardrop Air Cleaner 701-200 – Chrome-plated aluminum with mini filter.
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
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DRAG SPECIALTIES Cylinder - Front - 74" - 1948-1965 Panhead 750607-BX-LB2
DRAG SPECIALTIES
$204.53If you're running a classic Panhead and want to push beyond stock performance limits, upgrading to quality cylinders is non-negotiable. The DRAG SPECIALTIES front cylinder delivers the durability and heat resistance necessary for sustained...DS750607- SKU:
- DS750607
- Availability:
- Ships Same Business Day
- Weight:
- 11.81 LBS
- DISPLACEMENT:
- 74'
- MATERIAL:
- IRON
- PRODUCT NAME:
- CYLINDER
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- TYPE:
- FRONT
- BORE SIZE IMPERIAL:
- 3.435'
- MATERIAL:
- ALUMINUM
- MATERIAL:
- CAST
- RIDING STYLE:
- STREET
$204.53 -
DRAG SPECIALTIES Cylinder - Natural - 1986-2003 1200XL 16447-88-LB2
DRAG SPECIALTIES
$264.95Whether you're rebuilding a tired 1200XL or upgrading from an 883, these Drag Specialties cylinders deliver the displacement increase you need without compromising reliability. The ductile cast-iron sleeves bonded to aluminum castings provide superior...DS750506- SKU:
- DS750506
- Availability:
- Ships Same Business Day
- Weight:
- 6.94 LBS
- TYPE:
- REAR
- MATERIAL:
- IRON
- PRODUCT NAME:
- CYLINDER
- UNITS:
- EACH
- BORE SIZE IMPERIAL:
- 3.498'
- DISPLACEMENT:
- 1200 CC
- COLOR/FINISH:
- ALUMINUM
- MATERIAL:
- ALUMINUM
- MATERIAL:
- CAST
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 3-13/16'
- TYPE:
- FRONT
$264.95 -
DRAG SPECIALTIES Cylinder - 1200cc- 1988-2003 - XL - Black 09310018BLK-LB2
DRAG SPECIALTIES
$304.17If you're running an 883cc Harley and ready to step up displacement without a complete engine rebuild, these 1200cc cylinders deliver the straightforward path to more cubic inches. The ductile iron sleeves are precision-cast into aluminum, then finished...09310018- SKU:
- 09310018
- Availability:
- Ships Same Business Day
- Weight:
- 7.29 LBS
- DISPLACEMENT:
- 1200 CC
- MATERIAL:
- CAST
- PRODUCT NAME:
- CYLINDER
- RIDING STYLE:
- STREET
- BORE SIZE IMPERIAL:
- 3.500'
- COLOR/FINISH:
- HIGHLIGHTED FINS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- ALUMINUM
- MATERIAL:
- IRON
- UNITS:
- EACH
$304.17Qty in Cart: 0Quantity:Price:$304.17Subtotal: -
DRAG SPECIALTIES Crankcase Vent Replacement Filter 35-0312A-BC142
DRAG SPECIALTIES
$21.15A properly functioning crankcase vent system is critical for engine longevity and performance. Clogged or degraded filters restrict blow-by gases, leading to increased pressure buildup, oil leaks, and potential engine damage. This replacement filter from...DS289516- SKU:
- DS289516
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- BASE COLOR:
- SILVER
- UNITS:
- EACH
- BASE FINISH:
- CHROME
- COLOR/FINISH:
- ALUMINUM
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- TYPE:
- CRANKCASE
- PRODUCT NAME:
- VENT FILTER
- TYPE:
- CHROME TOP
$21.15 -
DRAG SPECIALTIES Crankcase Vent Replacement Filter 35-0313-BC104
DRAG SPECIALTIES
$21.15A properly functioning crankcase ventilation system is essential for engine longevity and reliable performance. This DRAG SPECIALTIES replacement filter prevents oil vapor and contaminants from entering your intake manifold, protecting critical engine...DS289517- SKU:
- DS289517
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- COLOR/FINISH:
- ALUMINUM
- BASE COLOR:
- BLACK
- BASE COLOR:
- SILVER
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- VENT FILTER
- TYPE:
- RUBBER TOP
- RIDING STYLE:
- STREET
- TYPE:
- CRANKCASE
$21.15 -
DRAG SPECIALTIES Crankcase Vent Replacement Filter 35-0319-BC142
DRAG SPECIALTIES
$22.21A clogged crankcase vent filter forces your engine to work harder, increasing pressure buildup and risking oil leaks, seal degradation, and performance loss. This DRAG SPECIALTIES replacement filter maintains optimal crankcase ventilation, protecting...DS289519- SKU:
- DS289519
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BASE FINISH:
- CHROME
- COLOR/FINISH:
- ALUMINUM
- RIDING STYLE:
- STREET
- TYPE:
- CRANKCASE
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- VENT FILTER
- TYPE:
- BOLT
- UNITS:
- EACH
- BASE COLOR:
- SILVER
- TYPE:
- BUTTON-HEAD
$22.21 -
DRAG SPECIALTIES Skull Points Cover - Twin Cam 30-0181-BC-222
DRAG SPECIALTIES
$43.41Your Twin Cam engine deserves a points cover that matches its performance pedigree. The DRAG Specialties Skull Points Cover delivers a bold aesthetic while protecting your ignition system with die-cast durability. This is functional customization—no...19020181- SKU:
- 19020181
- Availability:
- Ships Same Business Day
- Weight:
- 0.71 LBS
- COLOR/FINISH:
- CHROME
- MATERIAL:
- DIE-CAST
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- POINTS
- STYLE:
- 3-D SKULL
$43.41 -
DRAG SPECIALTIES Engine Motor Mount Plate - XL 28-0013-SC4
DRAG SPECIALTIES
$90.05A solid engine mount plate is fundamental to minimizing vibration transfer and maintaining proper engine geometry under load. Whether you're building a drag-focused platform or upgrading a street machine, quality motor mounts directly impact drivability,...DS243516- SKU:
- DS243516
- Availability:
- Ships Same Business Day
- Weight:
- 1.13 LBS
- BASE FINISH:
- CHROME
- MATERIAL:
- STEEL
- UNITS:
- PAIR
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- MOUNT PLATE
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- TYPE:
- ENGINE
$90.05 -
DRAG SPECIALTIES Motor Mount 28-0014
DRAG SPECIALTIES
$48.71Engine movement under acceleration and braking puts excessive stress on factory motor mounts, leading to vibration transfer into the cabin and potential drivetrain misalignment. The DRAG SPECIALTIES Motor Mount 28-0014 restores OEM-level support with...DS243601- SKU:
- DS243601
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- TYPE:
- ENGINE
- PRODUCT NAME:
- MOUNT PLATE
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$48.71 -
DRAG SPECIALTIES Top Stabilizer Link - FLT/FXR 17-0619
DRAG SPECIALTIES
$86.87A properly functioning top stabilizer link is critical for maintaining suspension geometry and reducing unwanted chassis movement during acceleration and braking. The DRAG Specialties unit is engineered to OEM specifications, delivering the rigidity and...09330075- SKU:
- 09330075
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- PRODUCT NAME:
- MOUNT STABILIZER
- RIDING STYLE:
- STREET
- TYPE:
- ENGINE
- BASE FINISH:
- CHROME
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
$86.87 -
DRAG SPECIALTIES Top Stabilizer Link - FXD E17-0649
DRAG SPECIALTIES
$94.29The DRAG SPECIALTIES Top Stabilizer Link (E17-0649) is essential for maintaining precise handlebar geometry and reducing unwanted movement during aggressive riding or racing conditions. A quality stabilizer link minimizes front-end harshness, improves...09330076- SKU:
- 09330076
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- PRODUCT NAME:
- MOUNT STABILIZER
- RIDING STYLE:
- STREET
- TYPE:
- ENGINE
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
- BASE FINISH:
- CHROME
$94.29 -
DRAG SPECIALTIES Top Motor Mount - Chrome E28-0035
DRAG SPECIALTIES
$69.91Motor mounts are the critical interface between your engine and chassis—worn or inadequate mounts allow excessive engine movement, compromising drivetrain alignment, increasing vibration transfer to the cabin, and accelerating wear on other components...09330077- SKU:
- 09330077
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- MOUNTING POSITION:
- TOP
- TYPE:
- ENGINE
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- BASE FINISH:
- CHROME
- PRODUCT NAME:
- MOUNT
$69.91 -
DRAG SPECIALTIES Rear Motor Mount Kit - XL E28-0021K
DRAG SPECIALTIES
$217.25Motor mounts are the critical interface between your engine and chassis—worn or degraded isolators introduce vibration, noise, and unpredictable handling that compounds under acceleration or load. The DRAG SPECIALTIES Rear Motor Mount Kit delivers...09330118- SKU:
- 09330118
- Availability:
- Ships Same Business Day
- Weight:
- 3.90 LBS
- PRODUCT NAME:
- MOUNT KIT
- RIDING STYLE:
- STREET
- BASE COLOR:
- BLACK
- MOUNTING POSITION:
- REAR
- TYPE:
- ISOLATOR
- COLOR/FINISH:
- BLACK
- UNITS:
- KIT
$217.25 -
DRAG SPECIALTIES Exhaust Gasket 01-0151
DRAG SPECIALTIES
$83.95A quality exhaust gasket is critical to maintaining a sealed, efficient exhaust system—any leakage compromises both performance and longevity. The DRAG Specialties 01-0151 provides a reliable, OEM-equivalent seal that prevents exhaust gases from escaping...09342557- SKU:
- 09342557
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PRODUCT NAME:
- GASKET
- TYPE:
- CROSSOVER
- TYPE:
- EXHAUST PORT
- RIDING STYLE:
- STREET
- UNITS:
- 10 PACK
$83.95 -
DRAG SPECIALTIES Exhaust Gasket 01-0149
DRAG SPECIALTIES
$108.10A degraded exhaust gasket compromises both performance and reliability—allowing exhaust gases to escape outside your intended flow path, reducing power and creating unwanted noise. This DRAG SPECIALTIES gasket seals your exhaust system properly, ensuring...09342558- SKU:
- 09342558
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- TYPE:
- EXHAUST INTERCONNECT
- PRODUCT NAME:
- GASKET
- UNITS:
- 10 PACK
- RIDING STYLE:
- STREET
$108.10 -
DRAG SPECIALTIES Exhaust Gasket 01-0148
DRAG SPECIALTIES
$93.40A quality exhaust gasket is critical to maintaining a sealed exhaust system—even microscopic leaks lead to performance loss, increased emissions, and potential engine damage over time. The DRAG Specialties 01-0148 provides reliable sealing across...09342559- SKU:
- 09342559
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PRODUCT NAME:
- GASKET
- UNITS:
- 10 PACK
- TYPE:
- EXHAUST INTERCONNECT
- RIDING STYLE:
- STREET
$93.40Qty in Cart: 0Quantity:Price:$93.40Subtotal: -
DRAG SPECIALTIES Exhaust Gasket - FXD I01-0150
DRAG SPECIALTIES
$93.40A failing exhaust gasket compromises both performance and reliability—allowing exhaust gases to escape before reaching your exhaust system and creating unwanted heat in the engine bay. The DRAG SPECIALTIES Exhaust Gasket (FXD I01-0150) delivers a...09342560- SKU:
- 09342560
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- UNITS:
- 10 PACK
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET
- TYPE:
- EXHAUST INTERCONNECT
$93.40 -
DRAG SPECIALTIES Oil Line Retainer Assembly - Softail T03-0150
DRAG SPECIALTIES
$22.21Oil line integrity is critical to engine health and performance—any leak compromises lubrication and can lead to catastrophic failure. This DRAG SPECIALTIES retainer assembly is engineered specifically for Softail models to secure oil lines running from...07110213- SKU:
- 07110213
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- FITS HOSE SIZE IMPERIAL:
- 3/8'
- PRODUCT NAME:
- FITTING
- TYPE:
- OIL FEED/RETURN
- UNITS:
- EACH
- BASE COLOR:
- BLACK
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- FITS HOSE SIZE METRIC:
- 9.5 MM
$22.21 -
DRAG SPECIALTIES Vent Line Retainer Assembly - Softail T03-0151
DRAG SPECIALTIES
$22.21When you disconnect your oil lines during maintenance or rebuilds, you risk contamination and improper seating on reinstallation. This Drag Specialties vent line retainer assembly ensures a clean, secure connection every time—eliminating the guesswork...07110214- SKU:
- 07110214
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- BASE COLOR:
- BLACK
- FITS HOSE SIZE IMPERIAL:
- 1/2'
- FITS HOSE SIZE METRIC:
- 12.7 MM
- PRODUCT NAME:
- FITTING
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- TYPE:
- VENT LINE
- COLOR/FINISH:
- BLACK
- UNITS:
- EACH
$22.21 -
DRAG SPECIALTIES Magnetic Oil Drain Plug XD0013-009NU
DRAG SPECIALTIES
$10.55Engine wear debris doesn't just disappear—it circulates through your oil until it settles in the pan. This magnetic drain plug captures ferrous particles before they cause accelerated wear on bearings, valve trains, and other critical components. For...07100268- SKU:
- 07100268
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- BASE FINISH:
- RAW
- COLOR/FINISH:
- SILVER
- PRODUCT NAME:
- DRAIN PLUG
- BASE COLOR:
- SILVER
- TYPE:
- MAGNETIC
- BASE COLOR:
- GRAY
- COLOR/FINISH:
- RAW
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$10.55Qty in Cart: 0Quantity:Price:$10.55Subtotal:
