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
-
Jims Cam Cover Large O-Ring 2171 for Harley-Davidson FLHTCI Electra Glide Classic 1996-1998
JIMS
$16.75A worn or deteriorating cam cover o-ring is a common source of oil seepage in classic Harley-Davidson engines—one that compounds over time and compromises engine cleanliness. The JIMS Cam Cover Large...DS376546- SKU:
- DS376546
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MATERIAL:
- RUBBER
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- O-RING
- SIZE:
- LARGE
- TYPE:
- TWIN CAM
$16.75 -
Jims Right-Side Crankcase Bushing 1940-1947 Knucklehead FL 24599-40
JIMS
$155.60Proper crankcase oiling is fundamental to Knucklehead longevity, and a worn or inadequate bushing compromises oil delivery to critical bearing surfaces. The JIMS Right-Side Crankcase Bushing restores...DS194090- SKU:
- DS194090
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
- PRODUCT NAME:
- BUSHING
- FEATURES:
- STANDARD SIZE
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TYPE:
- CRANKCASE
$155.60 -
Jims Pinion Shaft Bushing for 1993-1998 Harley-Davidson Dyna Low Rider FXDL 25582-93
JIMS
$46.00Worn pinion shaft bushings cause excessive play and accelerated wear throughout your primary drivetrain—leading to rough engagement, noise, and costly damage down the line. This JIMS bushing restores...DS194123- SKU:
- DS194123
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- BUSHING
- RIDING STYLE:
- STREET
- TYPE:
- PINION SHAFT
- UNITS:
- EACH
- DIAMETER IMPERIAL:
- 1.0035'
$46.00 -
Jims Pinion Shaft Bushing 1936-1953 Harley-Davidson FL 25582-36
JIMS
$44.90The pinion shaft bushing is a critical wear component in your FL's drivetrain—excessive play here translates directly to sloppy handling, increased vibration, and accelerated gear wear. A...DS194177- SKU:
- DS194177
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- BUSHING
- TYPE:
- PINION SHAFT
- DIAMETER IMPERIAL:
- 1.0015'
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$44.90 -
Jims Tappet Cover Black 2017-2021 Harley-Davidson FLHR Road King 6022
JIMS
$814.95A quality tappet cover keeps your engine sealed and protected under demanding ride conditions—critical for maintaining oil pressure and preventing leaks that compromise performance. The JIMS 6022...09402012- SKU:
- 09402012
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- PRODUCT NAME:
- COVER
- TYPE:
- TAPPET
- UNITS:
- EACH
- BASE FINISH:
- ANODIZED
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
$814.95 -
Jims Forceflow Cylinder Head Cooler Mount for 2013 Harley-Davidson FLHTCUSE8 5457
JIMS
$62.55Sustained high-performance riding demands reliable engine cooling, and the JIMS Forceflow Cylinder Head Cooler Mount delivers precision airflow management for your 110" motor. This bolt-on mount...09500605- SKU:
- 09500605
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- MOUNT
- TYPE:
- CYLINDER HEAD COOLER
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- ADAPTER
$62.55 -
JIMS Chromoly Steel Pushrods 1966-1984 Harley-Davidson FLH 5526
JIMS
$174.95Stock pushrods flex under aggressive cam profiles and sustained high-RPM operation, limiting your engine's potential and risking valve train failure. JIMS Chromoly Steel Pushrods deliver the rigidity...09280110- SKU:
- 09280110
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- COLOR/FINISH:
- CHROME
- BASE FINISH:
- CHROME
- RIDING STYLE:
- STREET
- MATERIAL:
- 4340 STEEL
- PRODUCT NAME:
- PUSHROD
- UNITS:
- SET
$174.95Qty in Cart: 0Quantity:Price:$174.95Subtotal: -
Jims Tappet Pushrod Kit 5525 for 1979-1981 Harley-Davidson FLHC Electra Glide Classic
JIMS
$550.95If you're running an aggressive cam profile or pushing your FLHC toward higher RPMs, factory tappets and pushrods will become your limiting factor. The JIMS 5525 Kit swaps out this weak link with...09290080- SKU:
- 09290080
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- PRODUCT NAME:
- TAPPET/PUSHROD KIT
- UNITS:
- KIT
- RIDING STYLE:
- STREET
$550.95Qty in Cart: 0Quantity:Price:$550.95Subtotal: -
Jims Idler Shaft and Bushing Kit for Harley-Davidson FLH 1958-1964 25791-KIT
JIMS
$56.40The idler shaft and bushing are critical wear points in your FLH's engine—if they're worn or damaged, you'll experience timing issues, increased friction, and potential engine failure. This complete...09251202- SKU:
- 09251202
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- PRODUCT NAME:
- SHAFT
- TYPE:
- IDLER GEAR
$56.40 -
Jims Pinion Shaft Bushing for Harley-Davidson FLH 1958-1964 25582-54/73
JIMS
$57.35A worn pinion shaft bushing compromises your drivetrain's efficiency and accelerates component degradation—replacing it is essential maintenance for any serious Harley builder or restorer. JIMS...DS194180- SKU:
- DS194180
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- TYPE:
- PINION SHAFT
- UNITS:
- EACH
- PRODUCT NAME:
- BUSHING
- RIDING STYLE:
- STREET
- DIAMETER IMPERIAL:
- 1.0035'
$57.35 -
JIMS Chrome Lifter Covers for Harley-Davidson Twin Cam 1999-2017 1043
JIMS
$332.95If you're running a Twin Cam 1043, keeping your engine bay protected while maintaining that polished aesthetic matters. JIMS Chrome Lifter Covers deliver both—shielding critical components from...DS194532- SKU:
- DS194532
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- PRODUCT NAME:
- COVER
- UNITS:
- PAIR
- BASE FINISH:
- CHROME
- COLOR/FINISH:
- CHROME
- MATERIAL:
- 6061-T6 ALUMINUM
- RIDING STYLE:
- STREET
- TYPE:
- LIFTER
$332.95Qty in Cart: 0Quantity:Price:$332.95Subtotal: -
Jims Sprocket Shaft 1936-1947 Harley-Davidson EL FL 24001-30
JIMS
$106.75Your 1936-1947 Harley-Davidson EL or FL's sprocket shaft endures constant stress from engine torque and drivetrain loads—worn or damaged shafts compromise power delivery and reliability. The JIMS...DS194080- SKU:
- DS194080
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- PRODUCT NAME:
- SHAFT
- TYPE:
- MOTOR SPROCKET
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- SPROCKET
$106.75 -
Jims Crankcase Bushing for Harley-Davidson FL 1958-1964 24599-58B
JIMS
$135.30A worn or inadequate crankcase bushing directly compromises oil delivery to critical engine components, leading to increased wear and reduced engine life. The JIMS 24599-58B restores full 360° oiling...DS194100- SKU:
- DS194100
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
- FEATURES:
- STANDARD SIZE
- UNITS:
- EACH
- PRODUCT NAME:
- BUSHING
- RIDING STYLE:
- STREET
- TYPE:
- CRANKCASE
$135.30Qty in Cart: 0Quantity:Price:$135.30Subtotal: -
Jims Rod Race Set for 1941-1999 Harley-Davidson Big Twin 1046-36A
JIMS
$121.75If you're running a big twin through serious rpm or racing conditions, stock rod bearings become your weak point—premature wear, loss of power delivery, and catastrophic failure risk. The JIMS Rod...DS194014- SKU:
- DS194014
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- COLOR/FINISH:
- COPPER
- UNITS:
- SET
- BASE COLOR:
- COPPER
- PRODUCT NAME:
- ROD RACE SET
- RIDING STYLE:
- STREET
$121.75Qty in Cart: 0Quantity:Price:$121.75Subtotal: -
Jims Sprocket Shaft for Harley-Davidson FL 1956-1964 24001-56
JIMS
$157.85If you're running a classic Harley-Davidson FL from the mid-century era, a worn or damaged sprocket shaft will compromise power transfer and invite premature drivetrain wear. The JIMS Sprocket Shaft...DS194073- SKU:
- DS194073
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- TYPE:
- SPROCKET
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SHAFT
- TYPE:
- MOTOR SPROCKET
$157.85Qty in Cart: 0Quantity:Price:$157.85Subtotal: -
JIMS Aluminum Lifter Blocks 1953-1984 Harley-Davidson Big Twin 1095
JIMS
$703.25Proper oil circulation is critical to Big Twin longevity, and worn lifter blocks are a common culprit behind premature engine wear and inconsistent performance. The JIMS Aluminum Lifter Blocks...DS194030- SKU:
- DS194030
- Availability:
- Ships Same Business Day
- Weight:
- 1.63 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- LIFTER BLOCK
- BASE COLOR:
- SILVER
- MATERIAL:
- 7075-T6 ALUMINUM
- COLOR/FINISH:
- ALUMINUM
- UNITS:
- PAIR
$703.25Qty in Cart: 0Quantity:Price:$703.25Subtotal: -
Jims Tappet Guide for Harley-Davidson XL Sportster 1957-1985 18607-57A
JIMS
$118.60Proper tappet guidance is critical to maintaining consistent valve train clearance and oil delivery in classic Harley-Davidson XL Sportsters—wear or inadequate lubrication here directly impacts...DS194034- SKU:
- DS194034
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- GUIDE
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MATERIAL:
- 7075-T6 ALUMINUM
- TYPE:
- TAPPET
$118.60Qty in Cart: 0Quantity:Price:$118.60Subtotal: -
Jims Right-Side Crankcase Bushing for 1995-1998 Harley-Davidson Dyna Convertible FXDS-CONV 24600-58B
JIMS
$160.10A failing crankcase bushing accelerates wear on your engine's most critical moving parts and compromises oil circulation—exactly what you don't want in a high-mileage Dyna. The JIMS 24600-58B...DS197067- SKU:
- DS197067
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
- FEATURES:
- SIZE IS +.002'
- PRODUCT NAME:
- BUSHING
- RIDING STYLE:
- STREET
- TYPE:
- CRANKCASE
- UNITS:
- EACH
$160.10Qty in Cart: 0Quantity:Price:$160.10Subtotal: -
Jims 1990-1992 Harley-Davidson Softail Standard FXST Gear-Side Pinion Shaft Nut 24022-90
JIMS
$33.95The gear-side pinion shaft nut is a critical fastener that bears constant rotational stress in your primary drivetrain. A worn or damaged nut compromises the integrity of your entire final-drive...DS198838- SKU:
- DS198838
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- TYPE:
- PINION SHAFT
- DIAMETER - THREAD SIZE IMPERIAL:
- 5/8-24
- PRODUCT NAME:
- NUT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$33.95Qty in Cart: 0Quantity:Price:$33.95Subtotal: -
Jims Gear-Side Pinion Shaft Nut for 1984-1989 Harley-Davidson Softail Custom FXSTC 24023-54
JIMS
$22.55The gear-side pinion shaft nut is a critical fastener that bears substantial rotational forces in your primary drivetrain. A secure, properly-seated nut prevents gear slippage and drivetrain damage...DS198839- SKU:
- DS198839
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- TYPE:
- PINION SHAFT
- DIAMETER - THREAD SIZE IMPERIAL:
- 5/8-24
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- NUT
$22.55
