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
-
On Sale
GOODRIDGE Straight Oil Line Fitting - Black - 1/4" NPT AN816-06DBK
GOODRIDGE
MSRP: $5.95Now: $4.46Was: $5.95Reliable oil line routing is foundational to engine longevity and performance—especially in forced induction or high-heat applications where standard fittings fail prematurely. GOODRIDGE straight...07110204- SKU:
- 07110204
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- BASE FINISH:
- ANODIZED
- COLOR/FINISH:
- BLACK
- MATERIAL:
- ALUMINUM
- BASE COLOR:
- BLACK
- FITTING CONNECTOR TYPE:
- 1/4' NPT MALE
- FITTING CONNECTOR TYPE:
- -6 AN MALE
- UNITS:
- EACH
- FITTING ANGLE:
- STRAIGHT
- PRODUCT NAME:
- FITTING
- RIDING STYLE:
- STREET
- TYPE:
- OIL LINE
MSRP: $5.95Now: $4.46Was: $5.95 -
On Sale
GOODRIDGE -6 Oil Line - Black - 12' 210-06-12
GOODRIDGE
MSRP: $132.69Now: $119.42Was: $132.69Reliable oil line systems are critical to engine longevity, especially in high-performance applications where temperature swings and pressure spikes are constant. The GOODRIDGE -6 Oil Line delivers...07110206- SKU:
- 07110206
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- RIDING STYLE:
- STREET
- MATERIAL:
- RUBBER
- COLOR/FINISH:
- BLACK
- HOSE SIZE:
- -6
- LENGTH METRIC:
- 366 CM
- TYPE:
- OIL LINE
- BASE COLOR:
- BLACK
- LENGTH IMPERIAL:
- 12'
- PRODUCT NAME:
- HOSE
- STYLE:
- BRAIDED
- UNITS:
- EACH
MSRP: $132.69Now: $119.42Was: $132.69Qty in Cart: 0Quantity:Price:MSRP: $132.69Now: $119.42Was: $132.69Subtotal: -
On Sale
GOODRIDGE -6 Oil Line - Black - 6' 210-06-6
GOODRIDGE
MSRP: $67.95Now: $61.16Was: $67.95High-quality oil lines are critical to maintaining system pressure, preventing leaks, and ensuring reliable performance under extreme conditions. The GOODRIDGE -6 Oil Line combines a PTFE liner with...07110208- SKU:
- 07110208
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- COLOR/FINISH:
- BLACK
- UNITS:
- EACH
- BASE COLOR:
- BLACK
- MATERIAL:
- RUBBER
- PRODUCT NAME:
- HOSE
- STYLE:
- BRAIDED
- HOSE SIZE:
- -6
- LENGTH IMPERIAL:
- 6'
- LENGTH METRIC:
- 183 CM
- RIDING STYLE:
- STREET
- TYPE:
- OIL LINE
MSRP: $67.95Now: $61.16Was: $67.95Qty in Cart: 0Quantity:Price:MSRP: $67.95Now: $61.16Was: $67.95Subtotal: -
HORSEPOWER, INC Oil Filter Bracket - Big Twin HPI-OC-1
HORSEPOWER, INC
$169.95Oil pressure drop and elevated temperatures are performance killers that compromise engine reliability and efficiency. The HORSEPOWER, INC Oil Filter Bracket eliminates these issues with optimized...07120269- SKU:
- 07120269
- Availability:
- Ships Same Business Day
- Weight:
- 1.11 LBS
- BASE FINISH:
- POLISHED
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- MOUNT
- TYPE:
- OIL FILTER
- COLOR/FINISH:
- POLISHED
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$169.95 -
JAGG OIL COOLERS Hyperflow Service Kit SKJ77
JAGG OIL COOLERS
$10.95Maintaining proper oil cooler sealing is critical to preventing leaks and ensuring consistent engine temperatures under sustained performance conditions. The JAGG OIL COOLERS Hyperflow Service Kit...07120556- SKU:
- 07120556
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MODEL:
- HYPERFLOW
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- OIL FILTER
- UNITS:
- KIT
$10.95Qty in Cart: 0Quantity:Price:$10.95Subtotal: -
JAMES GASKET Oil Pump Key - Big Twin 26340-36
JAMES GASKET
$22.20The oil pump key is a critical component that synchronizes your engine's oil pump timing with crankshaft rotation—a failure here means inadequate lubrication and potential catastrophic engine damage...DS194349- SKU:
- DS194349
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- RIDING STYLE:
- STREET
- TYPE:
- OIL PUMP
- UNITS:
- 10 PACK
- PRODUCT NAME:
- KEY
$22.20Qty in Cart: 0Quantity:Price:$22.20Subtotal: -
JAMES GASKET Transmission Oil Pan 26077-93
JAMES GASKET
$33.90A quality transmission oil pan is critical to maintaining proper fluid temperature and preventing leaks that can compromise your drivetrain's performance. The JAMES GASKET 26077-93 is...09343431- SKU:
- 09343431
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- PRODUCT NAME:
- GASKET
- TYPE:
- TRANSMISSION
- UNITS:
- 5 PACK
- RIDING STYLE:
- STREET
- TYPE:
- OIL PAN
$33.90 -
K & N Oil Filter - Chrome - Big Twin KN-172C
K & N
$20.99Synthetic racing oils demand superior filtration to maintain engine cleanliness under extreme conditions, and this K&N filter is engineered specifically for that purpose. The uniform pleated...KN172C- SKU:
- KN172C
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- BASE COLOR:
- SILVER
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
- FILTER MEDIA MATERIAL:
- SYNTHETIC
- LENGTH METRIC:
- 79 MM
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- OIL FILTER
- STYLE:
- STANDARD
- TYPE:
- SPIN-ON
- BASE FINISH:
- CHROME
- FEATURES:
- INCLUDES NUT
$20.99 -
K & N Oil Filter - Black - V-Rod KN-174B
K & N
$17.99Synthetic racing oils demand a filter engineered to match their performance demands—and the K&N KN-174B delivers exactly that. Built with uniform pleated synthetic media, this filter handles the...07120448- SKU:
- 07120448
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- BASE FINISH:
- COATED
- MODEL:
- WRENCH-OFF
- RIDING STYLE:
- STREET
- STYLE:
- PREMIUM
- BASE COLOR:
- BLACK
- LENGTH METRIC:
- 98 MM
- UNITS:
- EACH
- FEATURES:
- INCLUDES NUT
- FILTER MEDIA MATERIAL:
- SYNTHETIC
- PRODUCT NAME:
- OIL FILTER
- COLOR/FINISH:
- BLACK
- TYPE:
- SPIN-ON
$17.99 -
K & N Oil Filter - Chrome - Evolution KN-170C
K & N
$19.99Synthetic racing oils demand a filter built to match their performance potential—and K&N's Evolution KN-170C delivers exactly that. With high-flow synthetic media and robust construction, this filter...KN170C- SKU:
- KN170C
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- COLOR/FINISH:
- CHROME
- BASE FINISH:
- CHROME
- FEATURES:
- INCLUDES NUT
- UNITS:
- EACH
- BASE COLOR:
- SILVER
- LENGTH METRIC:
- 94 MM
- PRODUCT NAME:
- OIL FILTER
- FILTER MEDIA MATERIAL:
- SYNTHETIC
- RIDING STYLE:
- STREET
- STYLE:
- STANDARD
- TYPE:
- SPIN-ON
$19.99 -
Pro Filter 2002-2010 Buell XB12R Firebolt XB12S Lightning XB12X Ulysses Oil Filter PF-177
PRO FILTER
$11.99Keep your Buell's engine running clean and protected with the PRO FILTER PF-177, engineered to exceed OEM filtration standards and handle both synthetic and conventional oils without compromise...07120627- SKU:
- 07120627
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- PRODUCT NAME:
- OIL FILTER
- BASE COLOR:
- BLACK
- STYLE:
- PREMIUM
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- FILTER MEDIA MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
$11.99 -
On Sale
PRO-ONE PERF.MFG. Universal Oil Cooler Kit - Chrome 201050
PRO-ONE PERF.MFG.
MSRP: $307.95Now: $277.16Was: $307.95Maintaining optimal oil temperatures is critical to engine longevity and consistent performance under load—whether you're on the track or pushing hard on the street. The PRO-ONE PERF.MFG. Universal...DS310204- SKU:
- DS310204
- Availability:
- Ships Same Business Day
- Weight:
- 3.63 LBS
- COLOR/FINISH:
- CHROME
- FOR FRAME TUBE DIAMETER IMPERIAL:
- 1' - 1-1/4'
- UNITS:
- EACH
- BASE FINISH:
- CHROME
- FOR FRAME TUBE DIAMETER METRIC:
- 25.4 MM - 31.8 MM
- OUTSIDE DIAMETER IMPERIAL:
- 2-1/4'
- FEATURES:
- WITHOUT GAUGE
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- LENGTH IMPERIAL:
- 12'
- LENGTH METRIC:
- 305 MM
- OUTSIDE DIAMETER METRIC:
- 57.2 MM
- PRODUCT NAME:
- OIL COOLER KIT
MSRP: $307.95Now: $277.16Was: $307.95 -
On Sale
PRO-ONE PERF.MFG. No Gauge Oil Cooler Kit - Black - 1"- 1-1/4" 201050B
PRO-ONE PERF.MFG.
MSRP: $307.95Now: $277.16Was: $307.95Engine oil temperature is critical to performance and longevity—running too hot causes viscosity breakdown, increased wear, and power loss. The PRO-ONE No Gauge Oil Cooler Kit delivers efficient...07130073- SKU:
- 07130073
- Availability:
- Ships Same Business Day
- Weight:
- 3.90 LBS
- BASE COLOR:
- BLACK
- FEATURES:
- WITHOUT GAUGE
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- OIL COOLER KIT
- COLOR/FINISH:
- BLACK
- FOR FRAME TUBE DIAMETER METRIC:
- 25.4 MM - 31.8 MM
- LENGTH IMPERIAL:
- 12'
- LENGTH METRIC:
- 305 MM
- OUTSIDE DIAMETER METRIC:
- 57.2 MM
- FOR FRAME TUBE DIAMETER IMPERIAL:
- 1' - 1-1/4'
- OUTSIDE DIAMETER IMPERIAL:
- 2-1/4'
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $307.95Now: $277.16Was: $307.95 -
On Sale
PRO-ONE PERF.MFG. Oil Tank Mount Stud Cover 302190
PRO-ONE PERF.MFG.
MSRP: $26.35Now: $23.72Was: $26.35Protect your Softail oil tank's rubber mounts from the elements while maintaining a show-quality appearance. This PRO-ONE stud cover keeps dirt, moisture, and debris away from critical mounting...07100165- SKU:
- 07100165
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- COVER
- BASE FINISH:
- CHROME
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- STYLE:
- SOFTAIL (SWING ARM)
- TYPE:
- OIL TANK MOUNT
- UNITS:
- PAIR
MSRP: $26.35Now: $23.72Was: $26.35 -
On Sale
PRO-ONE PERF.MFG. Slimline Oil Filter Mount - Chrome 203150
PRO-ONE PERF.MFG.
MSRP: $98.95Now: $89.06Was: $98.95A quality oil filter mount keeps your cooling system organized and your engine protected—especially critical when space is tight or you're running a custom setup. The PRO-ONE PERF.MFG. Slimline...07120035- SKU:
- 07120035
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MODEL:
- SLIMLINE
- TYPE:
- OIL FILTER
- BASE FINISH:
- CHROME
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- MOUNT
MSRP: $98.95Now: $89.06Was: $98.95 -
ULTRACOOL Side Mount Oil Cooler Kit - Black - FLH SMT-2G
ULTRACOOL
$589.99Modern forced-induction and high-output engines generate heat that stock cooling systems simply can't handle—excess oil temperatures destroy viscosity, reduce lubrication efficiency, and accelerate...07130204- SKU:
- 07130204
- Availability:
- Ships Same Business Day
- Weight:
- 2.35 LBS
- BASE COLOR:
- BLACK
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- GLOSS BLACK
- MOUNTING POSITION:
- DOWN TUBE
- MOUNTING POSITION:
- SIDE MOUNT
- PRODUCT NAME:
- OIL COOLER
- UNITS:
- KIT
$589.99 -
ULTRACOOL Side Mount Oil Cooler Kit - Gloss Black - Sportster SMSP-1G
ULTRACOOL
$549.99Harley Sportster riders know that sustained high-performance riding generates heat that can compromise oil viscosity and engine reliability. The ULTRACOOL Side Mount Oil Cooler Kit automatically...07130224- SKU:
- 07130224
- Availability:
- Ships Same Business Day
- Weight:
- 6.51 LBS
- COLOR/FINISH:
- GLOSS BLACK
- PRODUCT NAME:
- OIL COOLER
- UNITS:
- KIT
- BASE COLOR:
- BLACK
- MOUNTING POSITION:
- DOWN TUBE
- MOUNTING POSITION:
- SIDE MOUNT
- RIDING STYLE:
- STREET
$549.99Qty in Cart: 0Quantity:Price:$549.99Subtotal: -
ULTRACOOL Below Regulator Mount Oil Cooler - Stainless Steel RF-2CSS
ULTRACOOL
$549.99Engine oil temperature is critical to longevity and performance—especially in high-displacement S&S applications where heat management directly impacts reliability and power output. The ULTRACOOL...07130246- SKU:
- 07130246
- Availability:
- Ships Same Business Day
- Weight:
- 7.86 LBS
- MOUNTING POSITION:
- BELOW REGULATOR
- PRODUCT NAME:
- OIL COOLER
- BASE COLOR:
- SILVER
- COLOR/FINISH:
- STAINLESS STEEL
- RIDING STYLE:
- STREET
- UNITS:
- KIT
$549.99 -
ULTRACOOL Side Mount Oil Cooler - Chrome SMT-2CSS
ULTRACOOL
$589.99Engine oil temperature directly impacts performance, longevity, and reliability—especially under sustained load or high ambient conditions. The ULTRACOOL Side Mount Oil Cooler maintains optimal...07130249- SKU:
- 07130249
- Availability:
- Ships Same Business Day
- Weight:
- 7.71 LBS
- UNITS:
- KIT
- COLOR/FINISH:
- CHROME
- MOUNTING POSITION:
- SIDE MOUNT
- PRODUCT NAME:
- OIL COOLER
- RIDING STYLE:
- STREET
- BASE COLOR:
- SILVER
- MATERIAL:
- STAINLESS STEEL
$589.99 -
ULTRACOOL Oil Cooler - Chrome - Indian IN-1C
ULTRACOOL
$589.99Excessive oil temperatures rob your Indian IN-1C of power, reliability, and engine longevity. The ULTRACOOL Oil Cooler delivers a purpose-built thermal management solution that automatically engages...07130251- SKU:
- 07130251
- Availability:
- Ships Same Business Day
- Weight:
- 7.36 LBS
- PRODUCT NAME:
- OIL COOLER
- UNITS:
- KIT
- BASE COLOR:
- SILVER
- MATERIAL:
- STAINLESS STEEL
- COLOR/FINISH:
- CHROME
- MOUNTING POSITION:
- SIDE MOUNT
- RIDING STYLE:
- STREET
$589.99
