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 Flow Pro 1 Billet Oil Pump Black 1992-1999 Harley-Davidson Softail 1753B
JIMS
$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 increased flow volume to ensure your Softail's critical...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
$822.80 -
Jims Piston Oiling Jet Kit for Harley-Davidson Twin Cam 1999-2017 1905
JIMS
$235.25Stroker flywheels demand precision oiling to survive sustained high-RPM operation—stock oil jets simply can't deliver the volume needed for proper piston cooling and bearing protection. The JIMS Piston Oiling Jet Kit 1905 restores that critical oil flow,...09200050- SKU:
- 09200050
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- RIDING STYLE:
- STREET
- BASE COLOR:
- SILVER
- COLOR/FINISH:
- SILVER
- TYPE:
- OILING
- UNITS:
- KIT
- PRODUCT NAME:
- JET KIT
$235.25 -
Jims Cam Cover Small O-Ring 1993-1999 Harley-Davidson FLSTC FLSTF FLSTN FLSTS FXD FXDL FXDWG FXSTC FXSTS FXSTSB 2170
JIMS
$5.45Cam cover o-rings are a critical maintenance item that directly impacts engine sealing integrity and longevity. A deteriorated or worn o-ring allows oil seepage, which compromises engine cleanliness and can lead to costly internal damage. The JIMS 2170...DS376547- SKU:
- DS376547
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- O-RING
- RIDING STYLE:
- STREET
- SIZE:
- SMALL
- MATERIAL:
- RUBBER
- UNITS:
- EACH
- TYPE:
- TWIN CAM
$5.45 -
Jims Hydrosolid Tappet 1800 for Harley-Davidson 1984-1999 Big Twin and 1986-1990 Sportster
JIMS
$163.05If you're pushing your Big Twin or Sportster beyond stock limits, you need valve train components that can handle sustained high-RPM operation without sacrificing low-end response. The JIMS Hydrosolid Tappet 1800 delivers exactly that—a hydraulic tappet...DS194342- SKU:
- DS194342
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- RIDING STYLE:
- STREET
- STYLE:
- HYDRAULIC
- PRODUCT NAME:
- TAPPET
- UNITS:
- EACH
- DIAMETER IMPERIAL:
- 0.8425'
- MODEL:
- HYDROSOLID
$163.05 -
Jims Hydraulic Tappet for 1953-1984 Harley-Davidson Big Twin 2459-1
JIMS
$172.45Hydraulic tappet wear is one of the most common failure points in Big Twin engines, leading to increased valve train noise, poor cam timing, and accelerated component degradation. The JIMS 2459-1 replaces sloppy OEM tappets with precision-engineered...DS194271- SKU:
- DS194271
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- DIAMETER IMPERIAL:
- 0.7310'
- RIDING STYLE:
- STREET
- SIZE:
- STANDARD
- PRODUCT NAME:
- TAPPET
- UNITS:
- EACH
- MODEL:
- POWERGLIDE SERIES
- SIZE IMPERIAL:
- STANDARD
- MATERIAL:
- STEEL
- STYLE:
- HYDRAULIC
$172.45 -
Jims Standard Solid Tappet for 1948-1984 Harley-Davidson Big Twin 2474-1
JIMS
$140.95Proper tappet clearance is critical to cam longevity and reliable power delivery in Big Twin engines—and that's where JIMS solid tappets earn their reputation. These precision-machined components maintain consistent valve timing across both cast iron and...DS194272- SKU:
- DS194272
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- DIAMETER IMPERIAL:
- 0.7310'
- SIZE:
- STANDARD
- MODEL:
- POWERGLIDE SERIES
- PRODUCT NAME:
- TAPPET
- UNITS:
- EACH
- MATERIAL:
- STEEL
- RIDING STYLE:
- STREET
- SIZE IMPERIAL:
- STANDARD
- STYLE:
- STANDARD SOLID
$140.95Qty in Cart: 0Quantity:Price:$140.95Subtotal: -
Jims Standard Solid Tappet Big Twin 1948-1984 2476-1
JIMS
$144.85Proper tappet clearance is critical to cam longevity and reliable valve timing—and factory tolerances often leave room for improvement. JIMS Standard Solid Tappets deliver precision-engineered geometry and hand-fitted hydraulic units that eliminate...DS194273- SKU:
- DS194273
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- SIZE IMPERIAL:
- OVERSIZE (+0.005')
- STYLE:
- STANDARD SOLID
- DIAMETER IMPERIAL:
- 0.7360'
- MODEL:
- POWERGLIDE SERIES
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- SIZE:
- OVERSIZE (+0,005')
- MATERIAL:
- STEEL
- PRODUCT NAME:
- TAPPET
$144.85 -
JIMS Tappet Oversize +.005 for 1972-1985 Harley-Davidson Sportster XLH XLCH XLX 2473-1
JIMS
$142.35If you're running a high-RPM Sportster engine, your factory tappets are likely introducing harmonic distortion that's costing you efficiency and precision. The JIMS Tappet +.005 XL is engineered to eliminate that slop with a solid roller design that...DS194277- SKU:
- DS194277
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- PRODUCT NAME:
- TAPPET
- RIDING STYLE:
- STREET
- SIZE:
- OVERSIZE (+0,005')
- STYLE:
- SOLID
- SIZE IMPERIAL:
- OVERSIZE (+0.005')
- UNITS:
- EACH
$142.35 -
Jims Standard Hydraulic Tappet for Harley-Davidson 1966-1980 Electra Glide FLH 2462-1
JIMS
$116.80Hydraulic tappet wear is one of the fastest ways to lose cam timing precision and overall engine reliability in your Big Twin. The JIMS Standard Hydraulic Tappet 2462-1 delivers hand-fitted accuracy and durable billet bearing steel construction to...DS194369- SKU:
- DS194369
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- TAPPET
- UNITS:
- EACH
- MATERIAL:
- STEEL
- DIAMETER IMPERIAL:
- 0.7310'
- RIDING STYLE:
- STREET
- SIZE:
- STANDARD
- STYLE:
- STANDARD HYDRAULIC
- MODEL:
- POWERGLIDE SERIES
- SIZE IMPERIAL:
- STANDARD
$116.80 -
Jims Standard Hydraulic Tappet 1966-1984 Harley-Davidson Electra Glide FLH 2463-1
JIMS
$120.50Hydraulic tappet wear directly impacts cam timing accuracy and overall engine reliability—especially critical in high-mileage Big Twin engines where factory tolerances have loosened. The JIMS Standard Hydraulic Tappet delivers precision-fitted...DS194370- SKU:
- DS194370
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- DIAMETER IMPERIAL:
- 0.7330'
- MODEL:
- POWERGLIDE SERIES
- SIZE IMPERIAL:
- OVERSIZE (+0.002')
- RIDING STYLE:
- STREET
- SIZE:
- OVERSIZE (+0,002')
- MATERIAL:
- STEEL
- UNITS:
- EACH
- PRODUCT NAME:
- TAPPET
- STYLE:
- STANDARD HYDRAULIC
$120.50 -
Jims Standard Hydraulic Tappet 1953-1984 Harley-Davidson Big Twin 2464-1
JIMS
$120.50Precision hydraulic tappets are the foundation of reliable valve timing and extended engine life on your Big Twin. JIMS Standard Hydraulic Tappets deliver the tight tolerances and durable construction that separate a well-tuned engine from one that's...DS194371- SKU:
- DS194371
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- DIAMETER IMPERIAL:
- 0.7360'
- MODEL:
- POWERGLIDE SERIES
- SIZE:
- OVERSIZE (+0,005')
- PRODUCT NAME:
- TAPPET
- STYLE:
- STANDARD HYDRAULIC
- MATERIAL:
- STEEL
- RIDING STYLE:
- STREET
- SIZE IMPERIAL:
- OVERSIZE (+0.005')
- UNITS:
- EACH
$120.50 -
Jims Standard Solid Tappet Big Twin 1948-1984 2475-1
JIMS
$144.85Solid tappets are fundamental to maintaining precise cam timing and valve train reliability in your Big Twin engine. The JIMS Standard Solid Tappet delivers the clearance accuracy and material quality necessary to prevent premature wear while maximizing...DS194373- SKU:
- DS194373
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- MODEL:
- POWERGLIDE SERIES
- PRODUCT NAME:
- TAPPET
- MATERIAL:
- STEEL
- SIZE:
- OVERSIZE (+0,002')
- DIAMETER IMPERIAL:
- 0.7330'
- RIDING STYLE:
- STREET
- SIZE IMPERIAL:
- OVERSIZE (+0.002')
- STYLE:
- STANDARD SOLID
- UNITS:
- EACH
$144.85 -
Jims Pinion Gear Shaft 1958-1972 Harley-Davidson FLH 24006-58
JIMS
$160.50A worn or damaged pinion gear shaft compromises power delivery and can lead to catastrophic drivetrain failure. The JIMS 24006-58 restores precise meshing between primary and transmission gears, ensuring consistent engagement and maximum efficiency...DS194086- SKU:
- DS194086
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- PRODUCT NAME:
- GEAR
- TYPE:
- PINION SHAFT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$160.50Qty in Cart: 0Quantity:Price:$160.50Subtotal: -
Jims Pinion Shaft 1973-1981 Harley-Davidson FLH 24006-73
JIMS
$160.50The pinion shaft is the critical link between your primary drive and transmission—any wear or damage here directly impacts power delivery and reliability. JIMS' 24006-73 is precision-engineered to restore OEM performance standards while delivering the...DS194087- SKU:
- DS194087
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- PRODUCT NAME:
- GEAR
- TYPE:
- PINION SHAFT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$160.50 -
JIMS Roller Rocker Arms 1984-2017 Harley-Davidson Big Twin XL 1045RR
JIMS
$959.85When you're pushing your Big Twin or XL to the edge, stock rocker arms become your bottleneck. JIMS Roller Rocker Arms deliver the lightweight efficiency and wear resistance you need to maximize valve timing accuracy and sustain high-RPM aggression...DS193850- SKU:
- DS193850
- Availability:
- Ships Same Business Day
- Weight:
- 2.80 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- APPLICATION:
- EXHAUST
- MATERIAL:
- STEEL
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- ROCKER ARM
- TYPE:
- ROLLER
- UNITS:
- SET OF 4
$959.85 -
Jims Circuit Breaker Shaft Kit 1936-1969 Big Twin 25856-KIT
JIMS
$59.70The Circuit Breaker shaft is critical to your Big Twin's ignition system reliability—a worn or damaged shaft leads to timing issues, misfires, and reduced engine performance. This JIMS kit delivers a precision-engineered replacement shaft paired with two...DS194234- SKU:
- DS194234
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- RIDING STYLE:
- STREET
- TYPE:
- CIRCUIT BREAKER
- PRODUCT NAME:
- SHAFT KIT
- UNITS:
- EACH
$59.70 -
Jims Engine Sprocket Shaft for Harley-Davidson Big Twin 1981-1985 23909-80
JIMS
$169.45The JIMS Sprocket Shaft is a critical drivetrain component that directly impacts torque delivery and chain longevity on your Big Twin. Factory shafts wear over time, leading to slack in the primary drive and accelerated sprocket degradation. This U.S.A...DS194190- SKU:
- DS194190
- Availability:
- Ships Same Business Day
- Weight:
- 1.69 LBS
- PRODUCT NAME:
- GASKET
- TYPE:
- SPROCKET SHAFT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$169.45Qty in Cart: 0Quantity:Price:$169.45Subtotal: -
Jims Pinion Gear Shaft for 1981-1986 Harley-Davidson Big Twin 24006-80/83
JIMS
$160.50A worn or damaged pinion gear shaft compromises your Big Twin's primary drive efficiency and can lead to costly engine damage down the line. The JIMS Pinion Gear Shaft restores precise engagement between your primary and clutch assemblies, ensuring...DS194191- SKU:
- DS194191
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- PRODUCT NAME:
- GEAR
- TYPE:
- PINION SHAFT
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$160.50 -
Jims Rocker Arm Shaft 1966-1984 Big Twin 17611-66B
JIMS
$111.40A worn or inferior rocker arm shaft compromises valve train efficiency and accelerates component degradation in your Big Twin—leading to lost performance and costly rebuilds. The JIMS Rocker Arm Shaft restores precise valve timing and reduces friction...DS193819- SKU:
- DS193819
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
- PRODUCT NAME:
- SHAFT
- TYPE:
- ROCKER ARM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$111.40 -
Jims Rocker Arm Bushings for Harley-Davidson FLH 1970-1984 17428-57K
JIMS
$83.95Worn rocker arm bushings compromise valve train accuracy and accelerate engine wear—particularly critical in high-mileage Big Twin and XL engines where lateral play directly impacts performance and longevity. JIMS Rocker Arm Bushings restore proper...DS193821- SKU:
- DS193821
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- PRODUCT NAME:
- BUSHING
- RIDING STYLE:
- STREET
- TYPE:
- ROCKER ARM
- UNITS:
- 8 PACK
$83.95Qty in Cart: 0Quantity:Price:$83.95Subtotal:
