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
-
On Sale
Jims Hydrosolid Tappet for Harley Sportster 1991-1999 1803
JIMS
MSRP: $170.40Now: $153.36Was: $170.40High-RPM hydraulic tappet systems become a liability on seriously built engines—they fail under sustained boost and load, leaving you stranded at the track. The JIMS Hydrosolid Tappet XL 1803 solves...DS194347- SKU:
- DS194347
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- PRODUCT NAME:
- TAPPET
- RIDING STYLE:
- STREET
- STYLE:
- HYDRAULIC
- UNITS:
- EACH
- DIAMETER IMPERIAL:
- 0.9035'
- MODEL:
- HYDROSOLID
MSRP: $170.40Now: $153.36Was: $170.40Qty in Cart: 0Quantity:Price:MSRP: $170.40Now: $153.36Was: $170.40Subtotal: -
On Sale
Jims Hydraulic Tappet for Harley-Davidson Big Twin 1948-1984 2461-1
JIMS
MSRP: $178.95Now: $161.06Was: $178.95Hydraulic tappets are critical to maintaining precise valve timing and protecting your roller lifters from premature wear—especially in high-mileage or heavily modified Big Twin engines. JIMS' billet...DS194275- SKU:
- DS194275
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- MATERIAL:
- STEEL
- STYLE:
- HYDRAULIC
- DIAMETER IMPERIAL:
- 0.7360'
- MODEL:
- POWERGLIDE SERIES
- RIDING STYLE:
- STREET
- SIZE:
- OVERSIZE (+0,005')
- SIZE IMPERIAL:
- OVERSIZE (+0.005')
- UNITS:
- EACH
- PRODUCT NAME:
- TAPPET
MSRP: $178.95Now: $161.06Was: $178.95 -
On Sale
Jims Standard Tappet for 1972-1985 Harley-Davidson XLH1000 2471-1
JIMS
MSRP: $138.65Now: $124.79Was: $138.65Harley XL engines demand precision valve timing to maintain peak performance across the RPM band, and worn or substandard tappets are a primary culprit behind lost efficiency and increased wear on...DS194276- SKU:
- DS194276
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- RIDING STYLE:
- STREET
- SIZE IMPERIAL:
- STANDARD
- STYLE:
- SOLID
- PRODUCT NAME:
- TAPPET
- SIZE:
- STANDARD
- UNITS:
- EACH
MSRP: $138.65Now: $124.79Was: $138.65 -
On Sale
Jims Hydraulic Tappet 1966-1984 Harley-Davidson FLH Electra Glide 2460-1
JIMS
MSRP: $164.95Now: $148.46Was: $164.95Worn or improperly fitted tappets compromise cam timing accuracy and accelerate roller wear—two critical factors that directly impact engine reliability and performance in Big Twin Harley...DS194367- SKU:
- DS194367
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- MATERIAL:
- STEEL
- UNITS:
- EACH
- SIZE:
- OVERSIZE (+0,002')
- STYLE:
- HYDRAULIC
- DIAMETER IMPERIAL:
- 0.7330'
- RIDING STYLE:
- STREET
- SIZE IMPERIAL:
- OVERSIZE (+0.002')
- MODEL:
- POWERGLIDE SERIES
- PRODUCT NAME:
- TAPPET
MSRP: $164.95Now: $148.46Was: $164.95Qty in Cart: 0Quantity:Price:MSRP: $164.95Now: $148.46Was: $164.95Subtotal: -
On Sale
Jims Large Axle Tappet 1984-1999 Harley-Davidson Softail Standard FXST 2456-1
JIMS
MSRP: $146.15Now: $131.54Was: $146.15Precision cam tracking directly impacts your engine's efficiency and reliability—especially in high-RPM applications where even minor variances compound into performance loss. The JIMS Large Axle...DS194107- SKU:
- DS194107
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- RIDING STYLE:
- STREET
- DIAMETER IMPERIAL:
- 0.8425'
- MATERIAL:
- STEEL
- PRODUCT NAME:
- TAPPET
- UNITS:
- EACH
- STYLE:
- HYDRAULIC
MSRP: $146.15Now: $131.54Was: $146.15 -
On Sale
Jims Pinion Gear Shaft 1954-1957 Harley-Davidson FL 24006-54A
JIMS
MSRP: $169.35Now: $152.42Was: $169.35The pinion gear shaft is critical to your Big Twin's drivetrain—it directly transfers engine power to the primary chain, and any wear or damage compromises throttle response and overall drivetrain...DS194141- SKU:
- DS194141
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- TYPE:
- PINION SHAFT
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GEAR
MSRP: $169.35Now: $152.42Was: $169.35 -
On Sale
Jims Pinion Shaft for 1987-1989 Harley-Davidson FLHS Electra Glide Sport 24006-87
JIMS
MSRP: $156.95Now: $141.26Was: $156.95A precision pinion shaft is the foundation of a reliable engine rebuild—any runout or misalignment will cascade into flywheel issues and compromised performance. The JIMS 24006-87 delivers concentric...DS194142- SKU:
- DS194142
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- PINION SHAFT ASSEMBLY
MSRP: $156.95Now: $141.26Was: $156.95Qty in Cart: 0Quantity:Price:MSRP: $156.95Now: $141.26Was: $156.95Subtotal: -
On Sale
Jims Pinion Gear Shaft 1939-1948 Harley-Davidson Big Twin 24007-39
JIMS
MSRP: $193.05Now: $173.75Was: $193.05Your Big Twin's pinion gear shaft is the critical link between engine and transmission—wear or damage here directly impacts power delivery and longevity. The JIMS 24007-39 is precision-engineered to...DS194143- SKU:
- DS194143
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- PINION SHAFT
- PRODUCT NAME:
- GEAR
MSRP: $193.05Now: $173.75Was: $193.05 -
On Sale
Jims Pinion Shaft Bushing for 1972-1976 Harley-Davidson Sportster XLH1000 25593-57
JIMS
MSRP: $39.60Now: $35.64Was: $39.60The pinion shaft bushing is a critical wear component in your Sportster's primary drivetrain, and worn bushings will introduce play, noise, and accelerated gear wear. JIMS' precision-engineered...DS194231- SKU:
- DS194231
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- TYPE:
- PINION SHAFT
- DIAMETER IMPERIAL:
- 0.8775'
- PRODUCT NAME:
- BUSHING
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $39.60Now: $35.64Was: $39.60 -
On Sale
Jims Rocker Arm Shaft for 1984-1999 Big Twin and 1986-2022 Sportster 17611-83
JIMS
MSRP: $51.25Now: $46.13Was: $51.25A worn or suboptimal rocker arm shaft compromises valve timing accuracy and increases parasitic friction losses throughout your engine cycle. The JIMS Rocker Arm Shaft is precision-engineered to...DS193820- SKU:
- DS193820
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- PRODUCT NAME:
- SHAFT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- TYPE:
- ROCKER ARM
- UNITS:
- EACH
MSRP: $51.25Now: $46.13Was: $51.25 -
On Sale
Jims Crank Pin for 1957-1971 Harley-Davidson XLH900 23960-54
JIMS
MSRP: $119.95Now: $107.96Was: $119.95The crank pin is a critical stress point in your Harley's engine, bearing constant rotational forces that demand precision engineering. This JIMS replacement restores OEM-spec tolerances, ensuring...DS194002- SKU:
- DS194002
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- RIDING STYLE:
- STREET
- TYPE:
- STANDARD
- COLOR/FINISH:
- SILVER
- PRODUCT NAME:
- CRANKPIN
- BASE COLOR:
- SILVER
- UNITS:
- EACH
MSRP: $119.95Now: $107.96Was: $119.95Qty in Cart: 0Quantity:Price:MSRP: $119.95Now: $107.96Was: $119.95Subtotal: -
On Sale
Jims Tappet Cover Kit Black 2017-2022 Harley Davidson FLHR Road King 6020
JIMS
MSRP: $310.25Now: $279.23Was: $310.25A quality tappet cover is essential for protecting your engine's valve train while maintaining proper oil circulation and thermal management—critical factors for consistent performance and longevity...09402010- SKU:
- 09402010
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- BASE FINISH:
- ANODIZED
- TYPE:
- TAPPET
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
MSRP: $310.25Now: $279.23Was: $310.25 -
On Sale
Jims Powerglide II Tappet 2004-2017 Harley-Davidson Twin Cam 1810 0929-0023
JIMS
MSRP: $201.15Now: $181.04Was: $201.15Twin Cam engines demand tappets engineered to handle sustained high loads and thermal stress—the JIMS Powerglide II delivers exactly that with billet construction and precision tolerances that keep...09290023- SKU:
- 09290023
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- MODEL:
- POWERGLIDE SERIES
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- PRODUCT NAME:
- LIFTER
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- SIZE IMPERIAL:
- OVERSIZE (+0.005')
- STYLE:
- HYDRAULIC
- DIAMETER IMPERIAL:
- 0.8470'
- SIZE:
- OVERSIZE (+0,005')
MSRP: $201.15Now: $181.04Was: $201.15 -
On Sale
JIMS Roller Rocker Arms 1966-1984 Harley-Davidson FLH Electra Glide 1732
JIMS
MSRP: $1,040.80Now: $936.72Was: $1,040.80Stock rocker arms limit your Electra Glide's potential through excessive friction and heat generation in the valve train. JIMS Roller Rocker Arms reduce parasitic losses, freeing up horsepower while...09270021- SKU:
- 09270021
- Availability:
- Ships Same Business Day
- Weight:
- 2.85 LBS
- RIDING STYLE:
- STREET
- TYPE:
- ROLLER
- APPLICATION:
- EXHAUST
- MOUNTING POSITION:
- FRONT
- UNITS:
- SET OF 4
- APPLICATION:
- INTAKE
- MATERIAL:
- CHROMOLY STEEL
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- ROCKER ARM
MSRP: $1,040.80Now: $936.72Was: $1,040.80 -
On Sale
Jims Rocker Arm Shaft and Hardware Kit for 2017-2022 Harley-Davidson FLHRXS Road King Special 5836
JIMS
MSRP: $401.50Now: $361.35Was: $401.50The stock rocker arm hardware on your 2017-2022 Road King Special can become a bottleneck during high-performance builds, especially when running increased spring pressures or extended engine duty...09270034- SKU:
- 09270034
- Availability:
- Ships Same Business Day
- Weight:
- 2.11 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- ROCKER ARM
- RIDING STYLE:
- STREET
MSRP: $401.50Now: $361.35Was: $401.50Qty in Cart: 0Quantity:Price:MSRP: $401.50Now: $361.35Was: $401.50Subtotal: -
On Sale
Jims Rocker Arm Shaft Kit 2018-2022 Harley-Davidson FLFBS Fat Boy 114 5837
JIMS
MSRP: $252.95Now: $227.66Was: $252.95The Milwaukee-Eight® engine demands precision engineering to maintain reliable valve train operation under load and high RPM conditions. Factory rocker arm shafts can accumulate wear, leading to...09270035- SKU:
- 09270035
- Availability:
- Ships Same Business Day
- Weight:
- 2.11 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- ROCKER ARM
- RIDING STYLE:
- STREET
MSRP: $252.95Now: $227.66Was: $252.95Qty in Cart: 0Quantity:Price:MSRP: $252.95Now: $227.66Was: $252.95Subtotal: -
On Sale
Jims Powerglide Tappet for Harley-Davidson Evolution 1984-1999 1824
JIMS
MSRP: $153.65Now: $138.29Was: $153.65Stock tappets limit your Evolution engine's potential, restricting oil flow and accelerating wear under sustained performance riding. The JIMS Powerglide Tappet 1824 solves this with...09290043- SKU:
- 09290043
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- DIAMETER IMPERIAL:
- 0.8420'
- MODEL:
- POWERGLIDE SERIES
- SIZE:
- STANDARD
- STYLE:
- HYDRAULIC
- MATERIAL:
- STEEL
- PRODUCT NAME:
- LIFTER
- RIDING STYLE:
- STREET
- SIZE IMPERIAL:
- STANDARD
- UNITS:
- EACH
MSRP: $153.65Now: $138.29Was: $153.65 -
On Sale
Jims Powerglide Tappet .002 Evolution 1825
JIMS
MSRP: $158.25Now: $142.43Was: $158.25If you're running a high-performance Evolution engine, cam wear and inadequate lubrication are silent killers of reliability and horsepower. The JIMS Powerglide Tappet .002 Evolution 1825 addresses...09290044- SKU:
- 09290044
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- MODEL:
- POWERGLIDE SERIES
- DIAMETER IMPERIAL:
- 0.8440'
- STYLE:
- HYDRAULIC
- RIDING STYLE:
- STREET
- SIZE:
- OVERSIZE (+0,002')
- SIZE IMPERIAL:
- OVERSIZE (+0.002')
- UNITS:
- EACH
- MATERIAL:
- STEEL
- PRODUCT NAME:
- LIFTER
MSRP: $158.25Now: $142.43Was: $158.25 -
On Sale
Jims Billet Oil Pump 1986-1991 Softail Custom FXSTC 1711EB
JIMS
MSRP: $600.50Now: $540.45Was: $600.50Stock oil pumps restrict flow and waste horsepower through unnecessary drag on your engine's rotating assemblies. The JIMS Billet Oil Pump replaces that inefficiency with precision-engineered...09320006- SKU:
- 09320006
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
- BASE COLOR:
- BLACK
- MODEL:
- FLOW PRO 1
- TYPE:
- OIL PUMP
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- BODY
- UNITS:
- KIT
MSRP: $600.50Now: $540.45Was: $600.50 -
On Sale
Jims Flow Pro 1 Billet Oil Pump Black 1992-1999 Harley-Davidson Softail 1753B
JIMS
MSRP: $822.80Now: $740.52Was: $822.80Engine lubrication is the foundation of reliable performance, and a weak oil pump compromises both power delivery and longevity. The JIMS Flow Pro 1 delivers CNC-machined precision and significantly...09320009- SKU:
- 09320009
- Availability:
- Ships Same Business Day
- Weight:
- 3.15 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 6061 BILLET ALUMINUM
- MODEL:
- FLOW PRO 1
- PRODUCT NAME:
- PUMP ASSEMBLY
- TYPE:
- OIL PUMP
- UNITS:
- KIT
- RIDING STYLE:
- STREET
MSRP: $822.80Now: $740.52Was: $822.80Qty in Cart: 0Quantity:Price:MSRP: $822.80Now: $740.52Was: $822.80Subtotal:
