Harley Cylinders and Parts
Harley Bike Cylinders & Parts at JJ Motorsports
Boost displacement and performance with premium cylinders and parts from JJ Motorsports, featuring big-bore kits, stud sets, and precision-machined cylinders for Sportster, Big Twin, Evo, and M8 engines. These high-quality components deliver reliable compression and perfect fit.
Shop Colony and Revolution Performance for proven durability. Explore related categories such as Harley engine for pistons and gaskets, or Harley for cams and heads to complete your big-bore build.
Top Harley Cylinders & Parts
- Colony Cylinder Stud Set 9424-8 – Chrome-plated cylinder stud kit; high-strength for Big Twin and Evo heads with perfect thread engagement.
- Revolution Performance LLC Cylinder Kit RP201-101W – 101ci big-bore cylinder kit; complete with pistons for Twin Cam performance upgrades.
- Revolution Performance LLC Cylinder Kit RP201-608W – 608ci cylinder kit for Sportster; massive displacement with matching pistons for serious power.
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
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COLONY Cylinder Stud Set 8858-8
COLONY
$37.95Heat-treated for strength and durability, Equal or surpass original equipment, Made in the U.S.A.DS189954- SKU:
- DS189954
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- TYPE:
- CYLINDER
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- STUD SET
- RIDING STYLE:
- STREET
- UNITS:
- 8 PACK
$37.95 -
COLONY Cylinder Stud Set 9424-8
COLONY
$101.95Heat-treated for strength and durability, Equal or surpass original equipmentDS189953- SKU:
- DS189953
- Availability:
- Ships Same Business Day
- Weight:
- 1.44 LBS
- PRODUCT NAME:
- STUD SET
- RIDING STYLE:
- STREET
- UNITS:
- 8 PACK
- TYPE:
- CYLINDER
$101.95 -
COLONY Cylinder Stud Set 9507-8
COLONY
$88.95Heat-treated for strength and durability, Equal or surpass original equipmentDS189952- SKU:
- DS189952
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- RIDING STYLE:
- STREET
- TYPE:
- CYLINDER
- UNITS:
- 8 PACK
- PRODUCT NAME:
- STUD SET
$88.95 -
EASTERN MOTORCYCLE PARTS Cylinder Base Studs - XL A-16830-54
EASTERN MOTORCYCLE PARTS
$10.952-5/16” long, Sold in a set of four for one cylinder, Made in the U.S.A.09310317- SKU:
- 09310317
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PRODUCT NAME:
- STUD SET
- UNITS:
- 4 PACK
- TYPE:
- CYLINDER
- RIDING STYLE:
- STREET
$10.95 -
COLONY Cylinder Stud Set - 1930-1977 Big Twin 8856-8
COLONY
$39.95Heat-treated for strength and durability, Equal or surpass original equipment, Made in the U.S.A.DS189956- SKU:
- DS189956
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- UNITS:
- 8 PACK
- TYPE:
- CYLINDER
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- STUD SET
- RIDING STYLE:
- STREET
$39.95Qty in Cart: 0Quantity:Price:$39.95Subtotal: -
COLONY Cylinder Stud Set - 1978-1984 Big Twin 8857-8
COLONY
$39.95Heat-treated for strength and durability, Equal or surpass original equipment, Made in the U.S.A.DS189955- SKU:
- DS189955
- Availability:
- Ships Same Business Day
- Weight:
- 0.69 LBS
- TYPE:
- CYLINDER
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- STUD SET
- RIDING STYLE:
- STREET
- UNITS:
- 8 PACK
$39.95Qty in Cart: 0Quantity:Price:$39.95Subtotal: -
REVOLUTION PERFORMANCE, LLC Cylinder Kit RP201-101W
REVOLUTION PERFORMANCE, LLC
$1,479.95REVOLUTION PERFORMANCE, LLC Cylinder Kit09311026- SKU:
- 09311026
- Availability:
- Ships Same Business Day
- Weight:
- 22.71 LBS
- STROKE LENGTH IMPERIAL:
- 4'
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 10.3:1
- DISPLACEMENT:
- 98'
- RIDING STYLE:
- STREET
- BORE SIZE IMPERIAL:
- 3.9375'
- COLOR/FINISH:
- NATURAL
- PRODUCT NAME:
- CYLINDER KIT
$1,479.95 -
REVOLUTION PERFORMANCE, LLC Cylinder Kit RP201-110W
REVOLUTION PERFORMANCE, LLC
$1,479.95REVOLUTION PERFORMANCE, LLC Cylinder Kit09311028- SKU:
- 09311028
- Availability:
- Ships Same Business Day
- Weight:
- 22.71 LBS
- COLOR/FINISH:
- NATURAL
- COMPRESSION RATIO IMPERIAL:
- 9.3:1
- BORE SIZE IMPERIAL:
- 3.9375'
- RIDING STYLE:
- STREET
- DISPLACEMENT:
- 98'
- PRODUCT NAME:
- CYLINDER KIT
- STROKE LENGTH IMPERIAL:
- 4'
- UNITS:
- KIT
$1,479.95 -
REVOLUTION PERFORMANCE, LLC Cylinder Kit RP201-111W
REVOLUTION PERFORMANCE, LLC
$1,479.95REVOLUTION PERFORMANCE, LLC Cylinder Kit09311029- SKU:
- 09311029
- Availability:
- Ships Same Business Day
- Weight:
- 22.81 LBS
- COMPRESSION RATIO IMPERIAL:
- 9.3:1
- BORE SIZE IMPERIAL:
- 3.9375'
- COLOR/FINISH:
- BLACK
- UNITS:
- KIT
- COLOR/FINISH:
- HIGHLIGHTED FINS
- PRODUCT NAME:
- CYLINDER KIT
- STROKE LENGTH IMPERIAL:
- 4'
- DISPLACEMENT:
- 98'
- RIDING STYLE:
- STREET
$1,479.95 -
REVOLUTION PERFORMANCE, LLC Cylinder Kit RP201-140TM
REVOLUTION PERFORMANCE, LLC
$1,599.95REVOLUTION PERFORMANCE, LLC Cylinder Kit09311036- SKU:
- 09311036
- Availability:
- Ships Same Business Day
- Weight:
- 21.86 LBS
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 4-5/8'
- UNITS:
- KIT
- BORE SIZE IMPERIAL:
- 4.125'
- COLOR/FINISH:
- HIGHLIGHTED FINS
- DISPLACEMENT:
- 124'
- PRODUCT NAME:
- CYLINDER KIT
$1,599.95Qty in Cart: 0Quantity:Price:$1,599.95Subtotal: -
REVOLUTION PERFORMANCE, LLC Cylinder Kit RP201-608W
REVOLUTION PERFORMANCE, LLC
$1,529.95REVOLUTION PERFORMANCE, LLC Cylinder Kit09311041- SKU:
- 09311041
- Availability:
- Ships Same Business Day
- Weight:
- 24.41 LBS
- BORE SIZE IMPERIAL:
- 4.250'
- COLOR/FINISH:
- BLACK
- COMPRESSION RATIO IMPERIAL:
- 11.3:1
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 4-1/2'
- DISPLACEMENT:
- 128'
- UNITS:
- KIT
$1,529.95Qty in Cart: 0Quantity:Price:$1,529.95Subtotal: -
REVOLUTION PERFORMANCE, LLC Cylinder Kit RP201-171W
REVOLUTION PERFORMANCE, LLC
$1,529.95REVOLUTION PERFORMANCE, LLC Cylinder Kit09311042- SKU:
- 09311042
- Availability:
- Ships Same Business Day
- Weight:
- 21.26 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- BORE SIZE IMPERIAL:
- 4.125'
- COLOR/FINISH:
- HIGHLIGHTED FINS
- PRODUCT NAME:
- CYLINDER KIT
- DISPLACEMENT:
- 117'
- STROKE LENGTH IMPERIAL:
- 4-3/8'
$1,529.95 -
REVOLUTION PERFORMANCE, LLC Cylinder Kit RP201-171WG
REVOLUTION PERFORMANCE, LLC
$1,529.95REVOLUTION PERFORMANCE, LLC Cylinder Kit09311043- SKU:
- 09311043
- Availability:
- Ships Same Business Day
- Weight:
- 21.31 LBS
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 4-3/8'
- COLOR/FINISH:
- GRANITE
- COLOR/FINISH:
- HIGHLIGHTED FINS
- DISPLACEMENT:
- 117'
- BORE SIZE IMPERIAL:
- 4.125'
- UNITS:
- KIT
$1,529.95 -
REVOLUTION PERFORMANCE, LLC Cylinder Kit RP201-172WB
REVOLUTION PERFORMANCE, LLC
$1,529.95REVOLUTION PERFORMANCE, LLC Cylinder Kit09311044- SKU:
- 09311044
- Availability:
- Ships Same Business Day
- Weight:
- 21.51 LBS
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- HIGHLIGHTED FINS
- DISPLACEMENT:
- 117'
- BORE SIZE IMPERIAL:
- 4.125'
- UNITS:
- KIT
- STROKE LENGTH IMPERIAL:
- 4-3/8'
$1,529.95 -
REVOLUTION PERFORMANCE, LLC Cylinder Kit RP201-129W
REVOLUTION PERFORMANCE, LLC
$1,599.95REVOLUTION PERFORMANCE, LLC Cylinder Kit09311048- SKU:
- 09311048
- Availability:
- Ships Same Business Day
- Weight:
- 21.21 LBS
- BORE SIZE IMPERIAL:
- 4.250'
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- HIGHLIGHTED FINS
- DISPLACEMENT:
- 131'
- STROKE LENGTH IMPERIAL:
- 4-5/8'
- UNITS:
- KIT
$1,599.95Qty in Cart: 0Quantity:Price:$1,599.95Subtotal: -
REVOLUTION PERFORMANCE, LLC Cylinder Kit RP201-135W
REVOLUTION PERFORMANCE, LLC
$1,599.95REVOLUTION PERFORMANCE, LLC Cylinder Kit09311049- SKU:
- 09311049
- Availability:
- Ships Same Business Day
- Weight:
- 21.26 LBS
- DISPLACEMENT:
- 131'
- UNITS:
- KIT
- BORE SIZE IMPERIAL:
- 4.250'
- COLOR/FINISH:
- GRANITE
- COLOR/FINISH:
- HIGHLIGHTED FINS
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 4-5/8'
$1,599.95 -
REVOLUTION PERFORMANCE, LLC Cylinder Kit RP201-611W
REVOLUTION PERFORMANCE, LLC
$1,899.95REVOLUTION PERFORMANCE, LLC Cylinder Kit09311050- SKU:
- 09311050
- Availability:
- Ships Same Business Day
- Weight:
- 23.56 LBS
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 4-3/8'
- BORE SIZE IMPERIAL:
- 4.500'
- COLOR/FINISH:
- HIGHLIGHTED FINS
- UNITS:
- KIT
- DISPLACEMENT:
- 139'
$1,899.95 -
REVOLUTION PERFORMANCE, LLC Cylinder Kit RP201-616W
REVOLUTION PERFORMANCE, LLC
$1,899.95REVOLUTION PERFORMANCE, LLC Cylinder Kit09311052- SKU:
- 09311052
- Availability:
- Ships Same Business Day
- Weight:
- 23.51 LBS
- COLOR/FINISH:
- BLACK
- DISPLACEMENT:
- 143'
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 4-1/2'
- BORE SIZE IMPERIAL:
- 4.500'
- COLOR/FINISH:
- HIGHLIGHTED FINS
- UNITS:
- KIT
$1,899.95Qty in Cart: 0Quantity:Price:$1,899.95Subtotal: -
REVOLUTION PERFORMANCE, LLC Cylinder Kit - 85" - Natural Silver RP201-213W
REVOLUTION PERFORMANCE, LLC
$1,479.95Revolution™ aerospace-grade all-aluminum cylinders with nickel-silicon-carbide electroplated bores, which means NO SLEEVING; allows larger bore sizes and less friction for more horsepower, lower temps, and a longer lifespan, True bolt-on kit that...09311057- SKU:
- 09311057
- Availability:
- Ships Same Business Day
- Weight:
- 20.96 LBS
- COLOR/FINISH:
- SILVER
- STROKE LENGTH IMPERIAL:
- 4-1/4'
- UNITS:
- KIT
- BORE SIZE IMPERIAL:
- 3-9/16'
- PRODUCT NAME:
- BIG BORE CYLINDER KIT
- FEATURES:
- FLAT TOP
- RIDING STYLE:
- STREET
- COMPRESSION RATIO IMPERIAL:
- 9.0:1
- DISPLACEMENT:
- 85'
$1,479.95Qty in Cart: 0Quantity:Price:$1,479.95Subtotal: -
REVOLUTION PERFORMANCE, LLC Cylinder Kit - 85" - Black with Highlighted Fins RP201-212W
REVOLUTION PERFORMANCE, LLC
$1,479.95Revolution™ aerospace-grade all-aluminum cylinders with nickel-silicon-carbide electroplated bores, which means NO SLEEVING; allows larger bore sizes and less friction for more horsepower, lower temps, and a longer lifespan, True bolt-on kit that...09311058- SKU:
- 09311058
- Availability:
- Ships Same Business Day
- Weight:
- 22.00 LBS
- COLOR/FINISH:
- HIGHLIGHTED FINS
- STROKE LENGTH IMPERIAL:
- 4-1/4'
- BORE SIZE IMPERIAL:
- 3-9/16'
- DISPLACEMENT:
- 85'
- PRODUCT NAME:
- BIG BORE CYLINDER KIT
- COMPRESSION RATIO IMPERIAL:
- 9.0:1
- COLOR/FINISH:
- BLACK
- FEATURES:
- FLAT TOP
- RIDING STYLE:
- STREET
- UNITS:
- KIT
$1,479.95
Buying Guide and FAQs
Buying Guide: Factors to Consider When Choosing Harley Bike Engine Cylinders and Parts
- Compatibility: Ensure cylinders and parts match your Harley's engine type (e.g., Big Twin 1930-1984, Twin Cam, Sportster) and specifics like bore size (3.500" to 4.500") or stroke (4" to 4-5/8"). Use the vehicle selector for year-specific fits to avoid performance or rebuild issues.
- Type of Use: For standard rebuilds, opt for stud sets for secure cylinder mounting; big-bore upgrades (85ci to 143ci) suit performance engines for increased horsepower and displacement in street or touring conditions.
- Components and Upgrades: Select stud sets (4/8-pack) or big-bore kits with pistons; upgrade to no-sleeving cylinders with electroplated bores for friction reduction. Focus on compression ratios (9.0:1-11.3:1) and finishes (natural, silver, black, highlighted fins) for optimal performance.
- Brand and Quality: Choose Colony for heat-treated stud sets in chrome/black, Revolution Performance LLC for aerospace-grade aluminum cylinder kits with nickel-silicon-carbide bores, or Eastern Motorcycle Parts for base studs. Prioritize USA-made quality for durability and lower engine temperatures.
- Installation and Cost: Parts are bolt-on for easy DIY rebuilds; kits include pistons for complete upgrades. Prices range from $10.95 for stud packs to $1,899.95 for premium cylinder kits—factor in same-day shipping and free shipping over $99 for value.
Frequently Asked Questions (FAQs)
- What Harley models and engines do these cylinders and parts support? Parts support Big Twin (1930-1984), Twin Cam (e.g., 98ci to 101ci), Sportster (e.g., 1200cc to 128ci)—use the year/make/model filter for exact compatibility with bore/stroke specifics.
- How do big-bore cylinder kits improve performance? They increase displacement (e.g., 85ci to 143ci) and horsepower with no-sleeving electroplated bores for less friction, lower temps, and longer lifespan.
- What is typically included in a cylinder kit? Kits include cylinders, pistons (e.g., flat-top), with options for finishes like black with highlighted fins—check details for compression ratios (9.0:1-11.3:1).
- Are stud sets durable? Yes, heat-treated steel with chrome/black finishes provides high strength and perfect thread engagement for secure cylinder mounting.
- What if a part doesn't fit my Harley? Verify bore size, stroke, and model before buying. Our returns policy allows exchanges or refunds if it doesn't match.
- Can I find related engine parts? Yes—explore pistons/rings, gaskets, or cams in the Harley engine category to complement your cylinders upgrade for a full rebuild.
