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
-
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
$39.95 -
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
$39.95 -
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:
- 22.70 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 RP201-103W
REVOLUTION PERFORMANCE, LLC
$1,479.95REVOLUTION PERFORMANCE, LLC Cylinder Kit09311027- SKU:
- 09311027
- Availability:
- Ships Same Business Day
- Weight:
- 23.00 LBS
- COLOR/FINISH:
- HIGHLIGHTED FINS
- COMPRESSION RATIO IMPERIAL:
- 10.3:1
- DISPLACEMENT:
- 98'
- BORE SIZE IMPERIAL:
- 3.9375'
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 4'
- UNITS:
- KIT
$1,479.95Qty in Cart: 0Quantity:Price:$1,479.95Subtotal: -
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:
- 22.70 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:
- 22.80 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 RP201-119W
REVOLUTION PERFORMANCE, LLC
$1,479.95REVOLUTION PERFORMANCE, LLC Cylinder Kit09311030- SKU:
- 09311030
- Availability:
- Ships Same Business Day
- Weight:
- 22.55 LBS
- BORE SIZE IMPERIAL:
- 3.9375'
- COLOR/FINISH:
- BLACK
- COMPRESSION RATIO IMPERIAL:
- 10.0:1
- DISPLACEMENT:
- 107'
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 4-3/8'
- COLOR/FINISH:
- HIGHLIGHTED FINS
- UNITS:
- KIT
$1,479.95Qty in Cart: 0Quantity:Price:$1,479.95Subtotal: -
REVOLUTION PERFORMANCE, LLC Cylinder Kit RP201-119WD
REVOLUTION PERFORMANCE, LLC
$1,479.95REVOLUTION PERFORMANCE, LLC Cylinder Kit09311032- SKU:
- 09311032
- Availability:
- Ships Same Business Day
- Weight:
- 22.65 LBS
- COMPRESSION RATIO IMPERIAL:
- 10.6:1
- DISPLACEMENT:
- 107'
- PRODUCT NAME:
- CYLINDER KIT
- STROKE LENGTH IMPERIAL:
- 4-3/8'
- COLOR/FINISH:
- HIGHLIGHTED FINS
- BORE SIZE IMPERIAL:
- 3.9375'
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- UNITS:
- KIT
$1,479.95 -
REVOLUTION PERFORMANCE, LLC Cylinder Kit RP201-174W
REVOLUTION PERFORMANCE, LLC
$1,479.95REVOLUTION PERFORMANCE, LLC Cylinder Kit09311034- SKU:
- 09311034
- Availability:
- Ships Same Business Day
- Weight:
- 22.20 LBS
- STROKE LENGTH IMPERIAL:
- 4-3/8'
- DISPLACEMENT:
- 113'
- UNITS:
- KIT
- BORE SIZE IMPERIAL:
- 4.060'
- COLOR/FINISH:
- HIGHLIGHTED FINS
- COMPRESSION RATIO IMPERIAL:
- 10.6:1
- PRODUCT NAME:
- CYLINDER KIT
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
$1,479.95Qty in Cart: 0Quantity:Price:$1,479.95Subtotal: -
REVOLUTION PERFORMANCE, LLC Cylinder Kit RP201-177W
REVOLUTION PERFORMANCE, LLC
$1,479.95REVOLUTION PERFORMANCE, LLC Cylinder Kit09311035- SKU:
- 09311035
- Availability:
- Ships Same Business Day
- Weight:
- 22.30 LBS
- COLOR/FINISH:
- BLACK GRANITE
- DISPLACEMENT:
- 113'
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 4-3/8'
- BORE SIZE IMPERIAL:
- 4.060'
- COMPRESSION RATIO IMPERIAL:
- 10.6:1
- PRODUCT NAME:
- CYLINDER KIT
$1,479.95Qty in Cart: 0Quantity:Price:$1,479.95Subtotal: -
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:
- 21.85 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
$1,599.95 -
REVOLUTION PERFORMANCE, LLC Cylinder Kit RP201-601W
REVOLUTION PERFORMANCE, LLC
$1,529.95REVOLUTION PERFORMANCE, LLC Cylinder Kit09311037- SKU:
- 09311037
- Availability:
- Ships Same Business Day
- Weight:
- 24.45 LBS
- COLOR/FINISH:
- HIGHLIGHTED FINS
- COMPRESSION RATIO IMPERIAL:
- 11.2:1
- BORE SIZE IMPERIAL:
- 4.250'
- DISPLACEMENT:
- 124'
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 4-3/8'
- COLOR/FINISH:
- BLACK
- UNITS:
- KIT
$1,529.95Qty in Cart: 0Quantity:Price:$1,529.95Subtotal: -
REVOLUTION PERFORMANCE, LLC Cylinder Kit RP201-603W
REVOLUTION PERFORMANCE, LLC
$1,529.95REVOLUTION PERFORMANCE, LLC Cylinder Kit09311038- SKU:
- 09311038
- Availability:
- Ships Same Business Day
- Weight:
- 24.40 LBS
- COMPRESSION RATIO IMPERIAL:
- 11.2:1
- DISPLACEMENT:
- 124'
- PRODUCT NAME:
- CYLINDER KIT
- STROKE LENGTH IMPERIAL:
- 4-3/8'
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- BORE SIZE IMPERIAL:
- 4.250'
$1,529.95Qty in Cart: 0Quantity:Price:$1,529.95Subtotal: -
REVOLUTION PERFORMANCE, LLC Cylinder Kit RP201-606W
REVOLUTION PERFORMANCE, LLC
$1,529.95REVOLUTION PERFORMANCE, LLC Cylinder Kit09311039- SKU:
- 09311039
- Availability:
- Ships Same Business Day
- Weight:
- 24.25 LBS
- DISPLACEMENT:
- 128'
- UNITS:
- KIT
- BORE SIZE IMPERIAL:
- 4.250'
- COLOR/FINISH:
- HIGHLIGHTED FINS
- PRODUCT NAME:
- CYLINDER KIT
- STROKE LENGTH IMPERIAL:
- 4-1/2'
- COLOR/FINISH:
- BLACK
- COMPRESSION RATIO IMPERIAL:
- 11.3:1
- RIDING STYLE:
- STREET
$1,529.95Qty in Cart: 0Quantity:Price:$1,529.95Subtotal: -
REVOLUTION PERFORMANCE, LLC Cylinder Kit RP201-607W
REVOLUTION PERFORMANCE, LLC
$1,529.95REVOLUTION PERFORMANCE, LLC Cylinder Kit09311040- SKU:
- 09311040
- Availability:
- Ships Same Business Day
- Weight:
- 24.35 LBS
- DISPLACEMENT:
- 128'
- UNITS:
- KIT
- COLOR/FINISH:
- BLACK GRANITE
- BORE SIZE IMPERIAL:
- 4.250'
- PRODUCT NAME:
- CYLINDER KIT
- STROKE LENGTH IMPERIAL:
- 4-1/2'
- COMPRESSION RATIO IMPERIAL:
- 11.3:1
- RIDING STYLE:
- STREET
$1,529.95Qty in Cart: 0Quantity:Price:$1,529.95Subtotal: -
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:
- 24.40 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
$1,529.95
