Harley Drivetrain
Harley Bike Drivetrain Parts at JJ Motorsports
Upgrade your Harley's drivetrain for smoother power delivery and reliability with components from JJ Motorsports. Our selection includes transmission mounting plates, offset sprockets, mechanical reverse kits, starter spacers, pulley spacers, and primary covers designed for heavy-duty use, easy bolt-in installation, and enhanced performance. Compatible with Big Twins, Softail, Dyna, and more, these parts feature chrome finishes, billet aluminum, and CNC-machined steel for corrosion resistance and custom fitment.
Shop trusted brands like Paughco for primary covers and PBI for sprockets. Explore related categories such as Harley engine parts for rebuilds or Harley suspension for balanced setups.
Top Harley Drivetrain Products
- PAUGHCO Transmission Plate - OE Type 4-Speed 218 – Heavy-duty steel for Big Twins with 4-speed transmissions.
- PBI Offset Transmission Sprocket - 22-Tooth 281-22 – CNC-machined chromoly steel with 0.750" offset for 530 chains.
- MOTOR TRIKE Mechanical Reverse Kit MTTR-0025 – Lightweight aluminum with electronic cut-off for easy parking.
- TERRY COMPONENTS Starter Spacer 779000 – Billet aluminum, 1-1/2" thick for longer starters.
- PINGEL Rear Pulley Spacer 62051 – Billet aluminum for wider tires up to 142mm.
Browse our in-stock inventory below with same-day shipping and expert support. Questions? Contact us for fitment advice!
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- Quantity
- Price
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On Sale
Belt Drives Ltd 11mm 1-1/2in Primary Belt 92T Harley-Davidson 1941-1984 BDL-5S11
BELT DRIVES LTD.
MSRP: $163.95Now: $147.56Was: $163.95The BDL-5S11 Replacement Belt from Belt Drives Ltd. is engineered for optimal performance in BDL primary drives. This durable and reliable belt ensures smooth operation, enhancing the efficiency of your machinery while providing long-lasting service. ...DS360010- SKU:
- DS360010
- Availability:
- Ships Same Business Day
- Weight:
- 0.69 LBS
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 92
- UNITS:
- EACH
- STYLE:
- RIBBED
- PRODUCT NAME:
- DRIVE BELT
- TYPE:
- PRIMARY
- WIDTH IMPERIAL:
- 1-1/2'
MSRP: $163.95Now: $147.56Was: $163.95 -
BAKER DRIVETRAIN Shifter Forks - Steel 167-5-A
BAKER DRIVETRAIN
$279.00Machined from billet steel and then hard chromed, Cross section is three times thicker than stock forks, Sold as a set (three shifter forks), Made in the U.S.A.DS194173- SKU:
- DS194173
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- UNITS:
- SET
- PRODUCT NAME:
- SHIFTER FORK
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
$279.00 -
BAKER DRIVETRAIN Direct Drive 7-Speed Gear - Black Door DD7-M803
BAKER DRIVETRAIN
$3,695.00BAKER DRIVETRAIN Direct Drive 7-Speed Gear - Black Door11030034- SKU:
- 11030034
- Availability:
- Ships Same Business Day
- Weight:
- 34.60 LBS
- RIDING STYLE:
- STREET
- TRANSMISSION TYPE:
- 7 SPEED
- UNITS:
- KIT
- PRODUCT NAME:
- GEAR SET
- TYPE:
- TRANSMISSION
- MODEL:
- DD7
$3,695.00 -
BAKER DRIVETRAIN Direct Drive 7-Speed Gear - Black Door DD7-37603
BAKER DRIVETRAIN
$3,695.00Direct replacement of the Cruise Drive Harley-Davidson factory 6-speed, The 7th gear enables the motorcycle to make full use, by the way of gear ratio management, of the torque and power put out by the 96 ci, 103 ci and 110 ci motors, Unlike the stock...11030035- SKU:
- 11030035
- Availability:
- Ships Same Business Day
- Weight:
- 37.40 LBS
- FOURTH GEAR RATIO:
- 1.55:1
- TRANSMISSION TYPE:
- 7 SPEED
- UNITS:
- KIT
- FIFTH GEAR RATIO:
- 1.27:1
- PRODUCT NAME:
- GEAR SET
- FIRST GEAR RATIO:
- 3.76:1
- MODEL:
- DD7
- SIXTH GEAR RATIO:
- 1.10:1
- THIRD GEAR RATIO:
- 2.06:1
- RIDING STYLE:
- STREET
- SECOND GEAR RATIO:
- 2.75:1
- SEVENTH GEAR RATIO:
- 1.00:1
$3,695.00 -
BAKER DRIVETRAIN Direct Drive 7-Speed Gear - Polished Door DD7-37602
BAKER DRIVETRAIN
$3,695.00Direct replacement of the Cruise Drive Harley-Davidson factory 6-speed, The 7th gear enables the motorcycle to make full use, by the way of gear ratio management, of the torque and power put out by the 96 ci, 103 ci and 110 ci motors, Unlike the stock...11030036- SKU:
- 11030036
- Availability:
- Ships Same Business Day
- Weight:
- 35.20 LBS
- PRODUCT NAME:
- GEAR SET
- SECOND GEAR RATIO:
- 2.75:1
- FIRST GEAR RATIO:
- 3.76:1
- MODEL:
- DD7
- RIDING STYLE:
- STREET
- SEVENTH GEAR RATIO:
- 1.00:1
- FOURTH GEAR RATIO:
- 1.55:1
- SIXTH GEAR RATIO:
- 1.10:1
- THIRD GEAR RATIO:
- 2.06:1
- TRANSMISSION TYPE:
- 7 SPEED
- UNITS:
- KIT
- FIFTH GEAR RATIO:
- 1.27:1
$3,695.00 -
BAKER DRIVETRAIN 6-Speed Gear Set OD6-401P-02
BAKER DRIVETRAIN
$3,195.00Includes polished trap door, all gears, mainshaft, countershaft, shifter drum, detent components, bearings, snap rings, gaskets and hardware, Significantly smoother shifting than stock due to a roller detent shift drum with reduced inertia and gear...11030038- SKU:
- 11030038
- Availability:
- Ships Same Business Day
- Weight:
- 28.30 LBS
- TRANSMISSION TYPE:
- 6 SPEED
- TYPE:
- TRANSMISSION
- PRODUCT NAME:
- GEAR SET
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- FIRST GEAR RATIO:
- 2.94:1
- MODEL:
- OD6
- SIXTH GEAR RATIO:
- 0.86:1
- STYLE:
- OVERDRIVE
$3,195.00 -
BAKER DRIVETRAIN 6-Speed Gear Set OD6-401-02
BAKER DRIVETRAIN
$3,195.00Includes polished trap door, all gears, mainshaft, countershaft, shifter drum, detent components, bearings, snap rings, gaskets and hardware, Significantly smoother shifting than stock due to a roller detent shift drum with reduced inertia and gear...11030045- SKU:
- 11030045
- Availability:
- Ships Same Business Day
- Weight:
- 28.10 LBS
- MODEL:
- OD6
- PRODUCT NAME:
- GEAR SET
- SIXTH GEAR RATIO:
- 0.86:1
- STYLE:
- OVERDRIVE
- TYPE:
- TRANSMISSION
- UNITS:
- KIT
- FIRST GEAR RATIO:
- 2.94:1
- TRANSMISSION TYPE:
- 6 SPEED
- RIDING STYLE:
- STREET
$3,195.00 -
BAKER DRIVETRAIN Direct Drive 6-Speed DD6-411P-02
BAKER DRIVETRAIN
$3,195.00Fits into existing 5-speed cases; lowers the rpm at cruising speeds, Includes a polished trap door, 6-speed gear set (3.24:1 1st gear/.86:1 6th gear), 28-tooth motor sprocket, longer primary chain, adjusting shoe, fixed spindle-shift drum and...11030046- SKU:
- 11030046
- Availability:
- Ships Same Business Day
- Weight:
- 32.00 LBS
- MODEL:
- DD6
- FIRST GEAR RATIO:
- 3.24:1
- TRANSMISSION TYPE:
- 6 SPEED
- TYPE:
- TRANSMISSION
- PRODUCT NAME:
- GEAR SET
- RIDING STYLE:
- STREET
- STYLE:
- DIRECT DRIVE
- UNITS:
- KIT
- SIXTH GEAR RATIO:
- 0.86:1
$3,195.00 -
BAKER DRIVETRAIN Direct Drive 7-Speed Gear - Polished Door DD7-M802
BAKER DRIVETRAIN
$3,695.00Direct replacement of the Cruise Drive Harley-Davidson factory 6-speed, The 7th gear enables the motorcycle to make full use, by the way of gear ratio management, of the torque and power put out by the 96 ci, 103 ci and 110 ci motors, Unlike the stock...11030051- SKU:
- 11030051
- Availability:
- Ships Same Business Day
- Weight:
- 51.60 LBS
- RIDING STYLE:
- STREET
- TRANSMISSION TYPE:
- 7 SPEED
- UNITS:
- KIT
- FIFTH GEAR RATIO:
- 1.27:1
- PRODUCT NAME:
- GEAR SET
- SECOND GEAR RATIO:
- 2.75:1
- FIRST GEAR RATIO:
- 3.76:1
- FOURTH GEAR RATIO:
- 1.55:1
- MODEL:
- DD7
- SIXTH GEAR RATIO:
- 1.10:1
- THIRD GEAR RATIO:
- 2.06:1
- SEVENTH GEAR RATIO:
- 1.00:1
$3,695.00 -
BAKER DRIVETRAIN High Torque Bearing Seal 25X52X07ADL
BAKER DRIVETRAIN
$17.50Replacement seal11040003- SKU:
- 11040003
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- STYLE:
- PERFORMANCE REPLACEMENT
- PRODUCT NAME:
- SEAL
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$17.50 -
BAKER DRIVETRAIN Clutch Kit - 9-Plate Big Dog CPRK-BDM
BAKER DRIVETRAIN
$249.00Replaces friction and steel plates on Big Dog OEM nine-plate clutches; can also be used to replace 12-plate clutch on 05-08 models, Made in the U.S.A.11311800- SKU:
- 11311800
- Availability:
- Ships Same Business Day
- Weight:
- 5.35 LBS
- MATERIAL:
- STEEL
- UNITS:
- SET OF 9
- PRODUCT NAME:
- FRICTION PLATE SET
- RIDING STYLE:
- STREET
- MODEL:
- BIG DOG
- TYPE:
- CLUTCH
$249.00 -
BAKER DRIVETRAIN Transmission Sprocket Spacer 33344-94S
BAKER DRIVETRAIN
$27.00Case-hardened steel with a Rockwell "C" hardness of 55 and a polished finish, 1.7" i.d.; .600" thick, Made in the U.S.A.11060001- SKU:
- 11060001
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- MATERIAL:
- STEEL
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPACER
- TYPE:
- TRANSMISSION
$27.00 -
BAKER DRIVETRAIN Dipstick 13002-56-A
BAKER DRIVETRAIN
$29.00Ends the problem of the OEM dipstick breaking off and going through your gears, Larger radius on the stem to the head for more strength, Polished with O-ring, Made in the U.S.A.11070690- SKU:
- 11070690
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- DIPSTICK
- TYPE:
- TRANSMISSION
- COLOR/FINISH:
- POLISHED
- UNITS:
- KIT
$29.00 -
BAKER DRIVETRAIN Anti-Overshift Pawl 555-56C-A
BAKER DRIVETRAIN
$249.95Features a rectangular cross-section shifter-shaft spring, Shift-shaft lever splines are hobbed on gear cutter just like Baker gears, With this setup there will be smoother shifts and no more broken shifter-shaft springs, Made in the U.S.A.11100015- SKU:
- 11100015
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- PRODUCT NAME:
- RATCHET SHIFT PAWL ASSEMBLY
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$249.95 -
BAKER DRIVETRAIN Kicker Gear Set - Big Twin 4-Speed 140-64-A
BAKER DRIVETRAIN
$399.00Made from 4140 heat-treated steel for maximum wear-resistance, Rounded teeth for smoother, quieter rolling, Reinforced stop-peg prevents breakage into the transmission, Made in the U.S.A.11120018- SKU:
- 11120018
- Availability:
- Ships Same Business Day
- Weight:
- 1.72 LBS
- MATERIAL:
- STEEL
- TYPE:
- KICKER GEAR SET
- UNITS:
- EACH
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- STREET
$399.00 -
BAKER DRIVETRAIN Kickstarter Arm 351-64K
BAKER DRIVETRAIN
$249.00304 stainless steel investment cast straight arm; provides positive kicking motion, Available in standard length, Flush mount stainless steel "head" fastener, Complete with all stainless steel hardware needed, Made in the U.S.A., For Baker 4, 5, &...11120024- SKU:
- 11120024
- Availability:
- Ships Same Business Day
- Weight:
- 2.13 LBS
- COLOR/FINISH:
- POLISHED
- MATERIAL:
- STAINLESS STEEL
- UNITS:
- EACH
- PRODUCT NAME:
- KICK ARM ASSEMBLY
- RIDING STYLE:
- STREET
$249.00 -
BAKER DRIVETRAIN Primary Adjuster Shoe DD6-178
BAKER DRIVETRAIN
$49.00Made in the U.S.A.11200220- SKU:
- 11200220
- Availability:
- Ships Same Business Day
- Weight:
- 0.23 LBS
- RIDING STYLE:
- STREET
- TYPE:
- PRIMARY CHAIN
- MODEL:
- FAT SHOE
- PRODUCT NAME:
- ADJUSTING SHOE
- UNITS:
- EACH
$49.00 -
BAKER DRIVETRAIN High Torque Bearing and Seal 189-56-A
BAKER DRIVETRAIN
$66.00Made in the U.S.A., Replaces the two-piece bearing and seal in the inner primary, A must for large horsepower motors that have the problem of the race moving in or out, Great for belt drive primary conversions11100018- SKU:
- 11100018
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- STYLE:
- PERFORMANCE REPLACEMENT
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- BEARING KIT
$66.00 -
On Sale
BARNETT Clutch Spring Conversion Kit - Mechanical Clutch 511-30-10004
BARNETT
MSRP: $222.56Now: $200.30Was: $222.56Converts your diaphragm spring clutch system to six coil springs, CNC-machined billet pressure plate, Ideal for stock to high-performance motors, Allows for more precise adjustment and smoother operation, Increases the holding capacity of the clutch,...DS199219- SKU:
- DS199219
- Availability:
- Ships Same Business Day
- Weight:
- 1.81 LBS
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- BILLET ALUMINUM
- STYLE:
- MECHANICAL CLUTCH
- PRODUCT NAME:
- CONVERSION KIT
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- TYPE:
- CLUTCH SPRING
MSRP: $222.56Now: $200.30Was: $222.56 -
On Sale
BARNETT Drive Plate 401-30-063014
BARNETT
MSRP: $8.79Now: $7.91Was: $8.79Designed to perform under extreme heat conditions, Allow smooth, precise shifting, Can be run wet or dry, Steel plates are manufactured under strict quality-control standards, Made in the U.S.A.DS223354- SKU:
- DS223354
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- TYPE:
- CLUTCH
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- DRIVE PLATE MATERIAL:
- STEEL
- PRODUCT NAME:
- DRIVE PLATE
MSRP: $8.79Now: $7.91Was: $8.79
