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
-
Hastings HASTINGS Piston Rings - Shovelhead 2M6127005
HASTINGS
$82.95Piston rings are the critical seal between your combustion chamber and crankcase—wear them out, and you're looking at blow-by, lost compression, and catastrophic engine degradation. Hastings piston rings are engineered to maintain that seal under extreme...DS750867- SKU:
- DS750867
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BORE OVERSIZE - IMPERIAL:
- +0.005'
- UNITS:
- SET
- BORE SIZE IMPERIAL:
- 3.503'
- RIDING STYLE:
- STREET
- STYLE:
- PERFORMANCE REPLACEMENT
- PRODUCT NAME:
- PISTON RING
- BORE - OVERSIZE:
- +0,005'
- RING MATERIAL:
- MOLY COATED
$82.95 -
Hastings HASTINGS Piston Rings 2M5721
HASTINGS
$39.95Piston rings are critical to engine sealing and compression—worn or substandard rings lead to blow-by, oil consumption, and power loss. The Hastings 2M5721 delivers OEM-quality construction with proven ring designs that maintain proper bore contact...DS750861- SKU:
- DS750861
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- RIDING STYLE:
- STREET
- BORE - OVERSIZE:
- STANDARD
- BORE OVERSIZE - IMPERIAL:
- STANDARD
- RING MATERIAL:
- MOLY COATED
- UNITS:
- SET
- BORE SIZE IMPERIAL:
- 3.625'
- PRODUCT NAME:
- PISTON RING
- STYLE:
- PERFORMANCE REPLACEMENT
$39.95 -
Hastings HASTINGS Piston Rings - Evolution 2M6198
HASTINGS
$55.95Piston rings are critical to engine sealing and performance—inadequate ring quality leads to blow-by, loss of compression, and accelerated wear. Hastings Evolution 2M6198 rings deliver the precision engineering and material science your engine needs to...DS750850- SKU:
- DS750850
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- PISTON RING
- RING MATERIAL:
- MOLY COATED
- STYLE:
- OEM REPLACEMENT
- BORE - OVERSIZE:
- STANDARD
- BORE OVERSIZE - IMPERIAL:
- STANDARD
- BORE SIZE IMPERIAL:
- 3.000'
- RIDING STYLE:
- STREET
- UNITS:
- SET
$55.95Qty in Cart: 0Quantity:Price:$55.95Subtotal: -
Hastings HASTINGS Piston Rings - Evolution 2M6164030
HASTINGS
$49.95Piston rings are the critical seal between your pistons and cylinder walls—and cheap or worn rings will cost you compression, blow-by, and power. Hastings has engineered the Evolution 2M6164030 rings to deliver reliable sealing across the full RPM range...DS750843- SKU:
- DS750843
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BORE - OVERSIZE:
- +0,030'
- PRODUCT NAME:
- PISTON RING
- RING MATERIAL:
- MOLY COATED
- STYLE:
- OEM REPLACEMENT
- BORE OVERSIZE - IMPERIAL:
- +0.030'
- BORE SIZE IMPERIAL:
- 3.528'
- UNITS:
- SET
- RIDING STYLE:
- STREET
$49.95 -
Hastings HASTINGS Piston Rings - Evolution 2M6164020
HASTINGS
$49.95Piston rings are the critical seal between your combustion chamber and crankcase—get them wrong, and you're looking at blow-by, oil consumption, and power loss. Hastings' Evolution 2M6164020 rings are engineered with a proven combination of materials and...DS750842- SKU:
- DS750842
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- PISTON RING
- STYLE:
- OEM REPLACEMENT
- BORE OVERSIZE - IMPERIAL:
- +0.020'
- UNITS:
- SET
- RIDING STYLE:
- STREET
- BORE - OVERSIZE:
- +0,020'
- BORE SIZE IMPERIAL:
- 3.498'
- RING MATERIAL:
- MOLY COATED
$49.95 -
Hastings HASTINGS Piston Rings - Evolution 2M6164010
HASTINGS
$49.95Proper ring design is fundamental to engine longevity and performance—Hastings Evolution piston rings deliver precise compression sealing while minimizing blowby and oil consumption. Whether you're rebuilding a street engine or preparing for sustained...DS750841- SKU:
- DS750841
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- PISTON RING
- STYLE:
- OEM REPLACEMENT
- UNITS:
- SET
- BORE - OVERSIZE:
- +0,010'
- RING MATERIAL:
- MOLY COATED
- BORE OVERSIZE - IMPERIAL:
- +0.010'
- BORE SIZE IMPERIAL:
- 3.508'
- RIDING STYLE:
- STREET
$49.95 -
Hastings HASTINGS Piston Rings - Evolution 2M6164
HASTINGS
$49.95Piston rings are where cylinder pressure meets reliability—and Hastings has engineered the Evolution 2M6164 to deliver both. Whether you're building a high-revving engine or restoring a proven platform, these rings maintain consistent blowby control and...DS750840- SKU:
- DS750840
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE OVERSIZE - IMPERIAL:
- STANDARD
- UNITS:
- SET
- RIDING STYLE:
- STREET
- BORE SIZE IMPERIAL:
- 3.498'
- RING MATERIAL:
- MOLY COATED
- STYLE:
- OEM REPLACEMENT
- PRODUCT NAME:
- PISTON RING
$49.95Qty in Cart: 0Quantity:Price:$49.95Subtotal: -
Hastings HASTINGS Piston Rings - Shovelhead 2M6127040
HASTINGS
$82.95Piston rings are critical to engine sealing, compression, and oil control—worn or substandard rings lead to blow-by, power loss, and accelerated wear on cylinder walls. The Hastings Piston Ring Set for Shovelhead engines delivers OEM-equivalent...DS750834- SKU:
- DS750834
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- STREET
- RING MATERIAL:
- MOLY COATED
- BORE OVERSIZE - IMPERIAL:
- +0.040'
- BORE SIZE IMPERIAL:
- 3.538'
- PRODUCT NAME:
- PISTON RING
- STYLE:
- PERFORMANCE REPLACEMENT
- UNITS:
- SET
- BORE - OVERSIZE:
- +0,040'
$82.95 -
Hastings HASTINGS Piston Rings - Shovelhead 2M6127030
HASTINGS
$82.95Proper piston ring sealing is critical to maintaining compression, controlling blow-by, and extending engine life in Shovelhead applications. These Hastings rings deliver the durability and precision fit that serious builders and rebuilders depend on to...DS750833- SKU:
- DS750833
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BORE - OVERSIZE:
- +0,030'
- RIDING STYLE:
- STREET
- BORE SIZE IMPERIAL:
- 3.528'
- UNITS:
- SET
- RING MATERIAL:
- MOLY COATED
- BORE OVERSIZE - IMPERIAL:
- +0.030'
- PRODUCT NAME:
- PISTON RING
- STYLE:
- PERFORMANCE REPLACEMENT
$82.95 -
Hastings HASTINGS Piston Rings - Shovelhead 2M6127020
HASTINGS
$82.95Piston rings are critical to engine seal integrity, compression, and oil control—worn or improper rings will cause blow-by, power loss, and accelerated wear on cylinder walls. Hastings piston rings are engineered to tight tolerances and designed...DS750832- SKU:
- DS750832
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BORE SIZE IMPERIAL:
- 3.518'
- UNITS:
- SET
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- STREET
- STYLE:
- PERFORMANCE REPLACEMENT
- BORE - OVERSIZE:
- +0,020'
- BORE OVERSIZE - IMPERIAL:
- +0.020'
- RING MATERIAL:
- MOLY COATED
$82.95 -
Hastings HASTINGS Piston Rings - Shovelhead 2M6127010
HASTINGS
$82.95Piston rings are critical to engine sealing, compression, and oil control—wear them out, and you're looking at lost power, blow-by, and accelerated engine wear. The Hastings 2M6127010 delivers the precise fitment and proven durability your Shovelhead...DS750831- SKU:
- DS750831
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- UNITS:
- SET
- BORE - OVERSIZE:
- +0,010'
- PRODUCT NAME:
- PISTON RING
- STYLE:
- PERFORMANCE REPLACEMENT
- BORE OVERSIZE - IMPERIAL:
- +0.010'
- BORE SIZE IMPERIAL:
- 3.508'
- RIDING STYLE:
- STREET
- RING MATERIAL:
- MOLY COATED
$82.95 -
Hastings HASTINGS Piston Rings - Shovelhead 2M6127
HASTINGS
$82.95Piston rings are critical to engine longevity—they seal combustion pressure, regulate oil consumption, and maintain compression. Hastings rings are engineered for durability and consistent performance, making them the trusted choice for Shovelhead...DS750830- SKU:
- DS750830
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BORE - OVERSIZE:
- +0,060'
- PRODUCT NAME:
- PISTON RING
- STYLE:
- PERFORMANCE REPLACEMENT
- BORE OVERSIZE - IMPERIAL:
- +0.060'
- BORE SIZE IMPERIAL:
- 3.498'
- RING MATERIAL:
- MOLY COATED
- UNITS:
- SET
- RIDING STYLE:
- STREET
$82.95 -
Hastings HASTINGS Piston Rings - 1200 2M6482070
HASTINGS
$80.95Piston rings are critical to engine performance—they seal combustion pressure, control oil consumption, and directly impact horsepower delivery and engine longevity. Hastings rings are engineered to strict OEM tolerances with proven materials that handle...DS750827- SKU:
- DS750827
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BORE - OVERSIZE:
- +0,070'
- PRODUCT NAME:
- PISTON RING
- STYLE:
- PERFORMANCE REPLACEMENT
- RING MATERIAL:
- MOLY COATED
- UNITS:
- SET
- BORE OVERSIZE - IMPERIAL:
- +0.070'
- BORE SIZE IMPERIAL:
- 3.507'
- RIDING STYLE:
- STREET
$80.95 -
Hastings HASTINGS Piston Rings - 1200 2M6482060
HASTINGS
$80.95Piston rings are critical to engine sealing and compression—worn or substandard rings will cause blow-by, oil consumption, and power loss. Hastings piston rings are engineered for durability and precise fitment, ensuring your engine maintains optimal...DS750826- SKU:
- DS750826
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BORE SIZE IMPERIAL:
- 3.437'
- UNITS:
- SET
- PRODUCT NAME:
- PISTON RING
- STYLE:
- PERFORMANCE REPLACEMENT
- RIDING STYLE:
- STREET
- BORE - OVERSIZE:
- +0,060'
- BORE OVERSIZE - IMPERIAL:
- +0.060'
- RING MATERIAL:
- MOLY COATED
$80.95 -
Hastings HASTINGS Piston Rings - 1200 2M6482050
HASTINGS
$80.95Piston rings are critical to engine sealing and compression—worn or substandard rings lead to blow-by, oil consumption, and power loss. The Hastings 1200 2M6482050 delivers OEM-quality engineering with proven ring designs that maintain proper gas sealing...DS750825- SKU:
- DS750825
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BORE SIZE IMPERIAL:
- 3.487'
- PRODUCT NAME:
- PISTON RING
- RING MATERIAL:
- MOLY COATED
- STYLE:
- PERFORMANCE REPLACEMENT
- BORE - OVERSIZE:
- +0,050'
- RIDING STYLE:
- STREET
- BORE OVERSIZE - IMPERIAL:
- +0.050'
- UNITS:
- SET
$80.95Qty in Cart: 0Quantity:Price:$80.95Subtotal: -
Hastings HASTINGS Piston Rings - 1200 2M6482020
HASTINGS
$80.95Piston rings are the critical seal between your combustion chamber and crankcase—wear them out, and you're looking at blow-by, loss of compression, and accelerated engine degradation. The Hastings 1200 series delivers the durability and precision you...DS750822- SKU:
- DS750822
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BORE SIZE IMPERIAL:
- 3.457'
- RING MATERIAL:
- MOLY COATED
- STYLE:
- PERFORMANCE REPLACEMENT
- BORE - OVERSIZE:
- +0,020'
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- PISTON RING
- UNITS:
- SET
- BORE OVERSIZE - IMPERIAL:
- +0.020'
$80.95 -
Hastings HASTINGS Piston Rings - 1200 2M6482010
HASTINGS
$80.95Piston rings are critical to engine sealing, compression, and oil control—and worn or substandard rings lead to blow-by, power loss, and accelerated wear. The Hastings 2M6482010 piston ring set delivers the precise tolerances and material quality needed...DS750821- SKU:
- DS750821
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- BORE SIZE IMPERIAL:
- 3.447'
- UNITS:
- SET
- BORE OVERSIZE - IMPERIAL:
- +0.010'
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- STREET
- STYLE:
- PERFORMANCE REPLACEMENT
- BORE - OVERSIZE:
- +0,010'
- RING MATERIAL:
- MOLY COATED
$80.95 -
Hastings HASTINGS Piston Rings - 1200 2M6482
HASTINGS
$80.95Piston rings are the critical seal between your combustion chamber and crankcase—without proper ring design, you'll lose compression, burn oil, and compromise power output. Hastings engineered these 1200 2M6482 rings with a proven cast/moly top ring and...DS750820- SKU:
- DS750820
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- STREET
- BORE - OVERSIZE:
- STANDARD
- BORE OVERSIZE - IMPERIAL:
- STANDARD
- UNITS:
- SET
- RING MATERIAL:
- MOLY COATED
- STYLE:
- OEM REPLACEMENT
- BORE SIZE IMPERIAL:
- 3.437'
- PRODUCT NAME:
- PISTON RING
$80.95 -
Hastings HASTINGS Piston Rings - XL 2M7003030
HASTINGS
$89.95Hastings piston rings deliver the precision fit and durability demanded by serious racers and rebuild specialists. These replacement rings are engineered to work seamlessly with KB pistons, enabling tighter tolerances that extend both ring and piston...DS750813- SKU:
- DS750813
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RING MATERIAL:
- MOLY COATED
- RIDING STYLE:
- STREET
- BORE - OVERSIZE:
- +0,030'
- BORE OVERSIZE - IMPERIAL:
- +0.030'
- BORE SIZE IMPERIAL:
- 3.217'
- PRODUCT NAME:
- PISTON RING
- UNITS:
- SET
$89.95Qty in Cart: 0Quantity:Price:$89.95Subtotal: -
Hastings HASTINGS Piston Rings - XL 2M7003
HASTINGS
$89.95Hastings piston rings deliver the precision fit and durability that high-performance engines demand. Engineered to work seamlessly with KB pistons, these rings extend component lifespan while maintaining tighter tolerances that serious builders rely on...DS750810- SKU:
- DS750810
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BORE SIZE IMPERIAL:
- 3.1875'
- PRODUCT NAME:
- PISTON RING
- RING MATERIAL:
- MOLY COATED
- BORE - OVERSIZE:
- STANDARD
- BORE OVERSIZE - IMPERIAL:
- STANDARD
- RIDING STYLE:
- STREET
- UNITS:
- SET
$89.95Qty in Cart: 0Quantity:Price:$89.95Subtotal:
