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!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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On Sale
Belt Drives Ltd 141 Tooth 1-3/4" Primary Drive Belt for 1990-2006 Harley-Davidson Softail BDL-141
BELT DRIVES LTD.
MSRP: $106.95Now: $96.26Was: $106.95Enhance the performance of your BDL primary drives with the BDL-141 Replacement Belt. Engineered for durability and precision, this belt ensures smooth operation and optimal power transfer, making it an essential component for maintaining your...DS360002- SKU:
- DS360002
- Availability:
- Ships Same Business Day
- Weight:
- 0.69 LBS
- PRODUCT NAME:
- DRIVE BELT
- STYLE:
- RIBBED
- TOOTH COUNT:
- 141
- TYPE:
- PRIMARY
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- WIDTH IMPERIAL:
- 1-3/4'
MSRP: $106.95Now: $96.26Was: $106.95 -
On Sale
Belt Drives Ltd 141 Tooth 1-5/8" Primary Drive Belt for 1986-1999 Harley-Davidson Softail BDL-141-1-5/8
BELT DRIVES LTD.
MSRP: $106.95Now: $96.26Was: $106.95Upgrade your BDL primary drive with the high-performance Replacement Belt BDL-141-1-5/8. Designed for durability and efficiency, this belt ensures smooth operation and longevity, making it an essential component for optimal performance. ...DS360004- SKU:
- DS360004
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- PRODUCT NAME:
- DRIVE BELT
- WIDTH IMPERIAL:
- 1-5/8'
- RIDING STYLE:
- STREET
- TYPE:
- PRIMARY
- UNITS:
- EACH
- STYLE:
- RIBBED
- TOOTH COUNT:
- 141
MSRP: $106.95Now: $96.26Was: $106.95Qty in Cart: 0Quantity:Price:MSRP: $106.95Now: $96.26Was: $106.95Subtotal: -
On Sale
Belt Drives Ltd 1990-2002 Harley-Davidson Softail 3" Primary Drive Belt BDL-141-3
BELT DRIVES LTD.
MSRP: $185.95Now: $167.36Was: $185.95The BDL-141-3 Replacement Belt from Belt Drives Ltd. is engineered for optimal performance in BDL primary drive systems. Designed for durability and reliability, this belt ensures smooth operation and longevity in demanding conditions. Upgrade your drive...DS360005- SKU:
- DS360005
- Availability:
- Ships Same Business Day
- Weight:
- 1.19 LBS
- UNITS:
- EACH
- WIDTH IMPERIAL:
- 3'
- RIDING STYLE:
- STREET
- TYPE:
- PRIMARY
- STYLE:
- RIBBED
- TOOTH COUNT:
- 141
- PRODUCT NAME:
- DRIVE BELT
MSRP: $185.95Now: $167.36Was: $185.95 -
On Sale
Belt Drives Ltd 3in Rubber Belt for 2000-2002 Harley-Davidson FLTR Road Glide BDL-132-3
BELT DRIVES LTD.
MSRP: $167.95Now: $151.16Was: $167.95Enhance the performance of your BDL primary drives with the BDL-132-3 Replacement Belt. Engineered for durability and precision, this belt ensures a reliable power transfer for optimal efficiency. Upgrade your system with this high-quality replacement...DS360006- SKU:
- DS360006
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- DRIVE BELT
- TOOTH COUNT:
- 132
- TYPE:
- PRIMARY
- WIDTH IMPERIAL:
- 3'
- STYLE:
- RIBBED
MSRP: $167.95Now: $151.16Was: $167.95 -
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
$29.00Qty in Cart: 0Quantity:Price:$29.00Subtotal: -
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
