Harley Miscellaneous Engine Parts
Harley Bike Miscellaneous Engine Parts at JJ Motorsports
Complete your Harley's engine rebuild with premium miscellaneous parts from JJ Motorsports, featuring chrome fittings, sprocket spacers, and oil screens for reliable lubrication and precise assembly on Big Twin, Evo, Shovelhead, and Panhead models. These high-quality components ensure leak-free operation and long-term durability.
Shop Gardner Westcott and Eastern Motorcycle Parts engine parts for OEM-spec reliability. Explore related categories such as Harley engine for cams and gaskets, or Harley for exhaust and drivetrain to finish your build.
Top Harley Miscellaneous Engine Parts
- Gardner Westcott Male 90 3/8" 1/8 NPT Chrome 7-91TD-6X2 – Chrome 90-degree male elbow fitting; 3/8" to 1/8" NPT for custom oil line routing.
- Eastern Motorcycle Parts Sprocket Shaft Spacer A-24039-03 – Precision spacer for mainshaft sprocket; fits 4-speed Big Twin transmissions.
- Eastern Motorcycle Parts Crank Case Oil Screen A-24981-66 – Oil pump screen for 1966-1984 Big Twin; prevents debris in lubrication system.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
On Sale
S&S CYCLE Pinion Gear - Standard - M8 330-0622
S&S CYCLE
MSRP: $131.95Now: $118.76Was: $131.95If you're upgrading to a gear-driven cam system on your M8 Harley-Davidson, you'll need a properly matched pinion gear to ensure reliable valve train operation and correct gear lash. This S&S Cycle pinion gear is engineered to work in tandem with...09500864- SKU:
- 09500864
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
MSRP: $131.95Now: $118.76Was: $131.95 -
FEULING OIL PUMP CORP. Short Sump Plug - M8/Twin Cam 3115
FEULING OIL PUMP CORP.
$12.95If you're running a Harley-Davidson M8 or Twin Cam engine and want to maximize oil scavenging efficiency, this short sump plug is essential. By eliminating obstruction at the internal engine case scavenge pick-up hole, you allow your oil pump to pull...09500990- SKU:
- 09500990
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
$12.95 -
FEULING OIL PUMP CORP. Short Sump Plug - 6 pack - M8/Twin Cam 3116
FEULING OIL PUMP CORP.
$62.95If you're running a high-performance M8 or Twin Cam engine, oil scavenging efficiency directly impacts bearing protection and engine reliability. The factory sump plug blocks the internal case scavenge pick-up hole, starving your oil pump of critical...09500991- SKU:
- 09500991
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
$62.95 -
On Sale
S&S CYCLE Piston Cooling Jet Kit - Twin Cam 310-1251
S&S CYCLE
MSRP: $89.95Now: $80.96Was: $89.95Piston cooling directly impacts engine longevity and reliability—especially under sustained high-RPM operation where stock cooling jets often fall short. The S&S Cycle Piston Cooling Jet Kit delivers optimized spray patterns and dual-jet geometry to...09501040- SKU:
- 09501040
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
MSRP: $89.95Now: $80.96Was: $89.95 -
On Sale
S&S CYCLE Piston Cooling Jet Kit - M8 310-1203
S&S CYCLE
MSRP: $119.95Now: $107.96Was: $119.95Piston cooling directly impacts engine longevity and peak performance—especially in high-boost or extended-duration racing applications where thermal stress accelerates wear. The S&S CYCLE Piston Cooling Jet Kit uses patent-pending dual spray technology...09501025- SKU:
- 09501025
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- BILLET
- PRODUCT NAME:
- JET KIT
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- ALUMINUM
- MATERIAL:
- 6061 T-6 ALUMINUM
- TYPE:
- PISTON COOLING
- UNITS:
- KIT
MSRP: $119.95Now: $107.96Was: $119.95 -
TP ENGINEERING Pro Series Rocker Arms 45-0245-23
TP ENGINEERING
$732.95Rocker arm wear directly impacts valve timing precision and overall engine efficiency—especially in high-RPM applications where even minimal slop compounds into power loss. TP Engineering's Pro Series rocker arms eliminate deflection through rigid 4140...TP24520- SKU:
- TP24520
- Availability:
- Ships Same Business Day
- Weight:
- 3.20 LBS
- RIDING STYLE:
- STREET
- TYPE:
- ROLLER
- UNITS:
- 4 PACK
- MATERIAL:
- STEEL
- MODEL:
- PRO SERIES
- PRODUCT NAME:
- ROCKER ARM
$732.95Qty in Cart: 0Quantity:Price:$732.95Subtotal: -
PAUGHCO Left Tool Box Mount - Softail 403C1
PAUGHCO
$64.95Proper footpeg clearance is critical when running a Softail with a left-side toolbox—inadequate spacing leads to uncomfortable riding position and potential interference issues. The PAUGHCO Left Tool Box Mount solves this with a spacer and extended bolt...DS273663- SKU:
- DS273663
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- MOUNTING POSITION:
- LEFT
- RIDING STYLE:
- STREET
- TYPE:
- TOOLBOX
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- MOUNTING KIT
- UNITS:
- KIT
- BASE FINISH:
- CHROME
$64.95Qty in Cart: 0Quantity:Price:$64.95Subtotal: -
JAMES GASKET Primary Cover Lock Plate - Big Twin 31497-65
JAMES GASKET
$6.95A properly secured primary cover is fundamental to maintaining clutch integrity and preventing oil seepage on Big Twin engines. The JAMES GASKET Primary Cover Lock Plate delivers reliable retention and a precision fit without modification, ensuring your...09500231- SKU:
- 09500231
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- PRODUCT NAME:
- COVER
- TYPE:
- LOCK PLATE
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$6.95 -
GARDNER-WESTCOTT Male Elbow - 1/4" x 1/8" - Chrome 7-91HB-4X2
GARDNER-WESTCOTT
$12.95Fluid system reliability depends on quality fittings, and this Gardner-Westcott elbow delivers the precision you need for consistent performance. Whether you're plumbing coolant lines, fuel systems, or pneumatic circuits, a properly sized elbow...DS245260- SKU:
- DS245260
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- CONNECTION TYPE:
- 1/4' HOSE FITTING
- TYPE:
- HOSE
- CONNECTOR ANGLE:
- 90°
- PRODUCT NAME:
- FITTING
- CONNECTION TYPE:
- 1/8' NPT (MALE)
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$12.95Qty in Cart: 0Quantity:Price:$12.95Subtotal: -
GARDNER-WESTCOTT 90 Fitting - 1/8" NPT 7-116PSE-2
GARDNER-WESTCOTT
$8.95Proper fitting selection is critical for reliable fluid and pneumatic system integrity, especially in high-performance racing applications where leaks directly impact both performance and safety. The Gardner-Westcott 90 Fitting with 1/8" NPT threading...DS245205- SKU:
- DS245205
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
- CONNECTOR ANGLE:
- 90°
- PRODUCT NAME:
- FITTING
- RIDING STYLE:
- STREET
- TYPE:
- OIL PUMP
- CONNECTION TYPE:
- 1/8' NPT (MALE)
$8.95Qty in Cart: 0Quantity:Price:$8.95Subtotal: -
JAMES GASKET Intake Manifold Spacer - 1.86" 29250-98-A
JAMES GASKET
$29.95Carburetor fuel boiling is a silent killer of performance—it starves your engine of consistent fuel delivery and causes stumbling, hesitation, and lost power, especially under sustained high-heat conditions. The JAMES GASKET Intake Manifold Spacer...20111214- SKU:
- 20111214
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- INSULATOR BLOCK
- RIDING STYLE:
- STREET
- TYPE:
- CARBURETOR
$29.95 -
GARDNER-WESTCOTT Male Connector - 3/16" x 1/8" NPT 7-48IC-3X2
GARDNER-WESTCOTT
$6.95Fluid system reliability depends on secure, leak-free connections at every junction. This Gardner-Westcott male connector provides the precision fit and durability required in high-performance applications where system pressure and vibration demand...DS245250- SKU:
- DS245250
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- FITTING
- RIDING STYLE:
- STREET
- TYPE:
- OIL PUMP
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
- CONNECTOR ANGLE:
- STRAIGHT
- CONNECTION TYPE:
- 1/8' NPT (MALE)
$6.95Qty in Cart: 0Quantity:Price:$6.95Subtotal: -
GARDNER-WESTCOTT Union - 3/8" - Chrome 7-92HB-6X6
GARDNER-WESTCOTT
$8.95A quality union fitting is essential for building reliable hydraulic and pneumatic systems that won't leak under pressure or vibration. This Gardner-Westcott 3/8" union delivers the precision engineering and corrosion resistance your high-performance...DS245252- SKU:
- DS245252
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- CHROME
- CONNECTION TYPE:
- 3/8' HOSE FITTING
- UNITS:
- EACH
- CONNECTOR ANGLE:
- STRAIGHT
- TYPE:
- HOSE
- PRODUCT NAME:
- FITTING
$8.95 -
GARDNER-WESTCOTT 1/8" NPT Hex Plug - Chrome 7-121PP-2
GARDNER-WESTCOTT
$5.95A quality hex plug is essential for sealing NPT ports on fuel systems, oil lines, and cooling circuits—preventing leaks that compromise performance and reliability. This Gardner-Westcott plug delivers precision engineering with a chrome finish that...DS245262- SKU:
- DS245262
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- CONNECTION TYPE:
- 1/8' NPT (MALE)
- COLOR/FINISH:
- CHROME
- TYPE:
- OIL DRAIN
- PRODUCT NAME:
- PLUG
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$5.95 -
GARDNER-WESTCOTT Breather Fitting - 1/4" NPT - 90 Degree 7-116PSE-4
GARDNER-WESTCOTT
$13.95Proper crankcase ventilation is essential for engine longevity and reliable operation, especially in high-performance applications where pressure buildup can compromise seals and gaskets. This Gardner-Westcott breather fitting provides a...DS245264- SKU:
- DS245264
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- CONNECTION TYPE:
- 1/4' NPT (FEMALE)
- CONNECTOR ANGLE:
- 90°
- PRODUCT NAME:
- FITTING
- RIDING STYLE:
- STREET
- TYPE:
- BREATHER
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
- BASE FINISH:
- CHROME
- BASE FINISH:
- POLISHED
- COLOR/FINISH:
- POLISHED
- CONNECTION TYPE:
- 1/4' NPT (MALE)
$13.95 -
GARDNER-WESTCOTT Breather Fitting - 1/4" NPT - 45 Degree 7-124PSE-4
GARDNER-WESTCOTT
$15.95Proper crankcase ventilation is essential for engine longevity and consistent performance, and this Gardner-Westcott breather fitting ensures clean, efficient airflow without compromising seal integrity. The 45-degree design allows for flexible routing...DS245265- SKU:
- DS245265
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- CONNECTION TYPE:
- 1/4' NPT (MALE)
- CONNECTOR ANGLE:
- 45°
- PRODUCT NAME:
- FITTING
- BASE FINISH:
- POLISHED
- TYPE:
- BREATHER
- BASE FINISH:
- CHROME
- COLOR/FINISH:
- CHROME
- COLOR/FINISH:
- POLISHED
- CONNECTION TYPE:
- 1/4' NPT (FEMALE)
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$15.95Qty in Cart: 0Quantity:Price:$15.95Subtotal: -
GARDNER-WESTCOTT 1/4" - 1/8" NPT Fitting - Chrome 7-90TD-4X2
GARDNER-WESTCOTT
$9.95Reliable fluid transfer is non-negotiable in high-performance applications, and this Gardner-Westcott fitting delivers the dependability you need without compromise. The 1/4" to 1/8" NPT reduction is precisely engineered for systems where port...DS245270- SKU:
- DS245270
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- CONNECTION TYPE:
- 1/4' NPT (MALE)
- PRODUCT NAME:
- FITTING
- TYPE:
- HOSE
- CONNECTION TYPE:
- 1/8' NPT (MALE)
- COLOR/FINISH:
- CHROME
- CONNECTOR ANGLE:
- STRAIGHT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$9.95 -
ALLOY ART Compression Release Adapter - 14 mm x 3/8" CRA-2
ALLOY ART
$20.95Running twin plug heads but only need single ignition? The ALLOY ART Compression Release Adapter eliminates unnecessary complexity by cleanly blanking off that secondary spark plug hole—no drilling, no fabrication required. This CNC-precision adapter...09500081- SKU:
- 09500081
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- TYPE:
- COMPRESSION RELEASE
- UNITS:
- EACH
- CONNECTOR ANGLE:
- STRAIGHT
- SIZE:
- 14 MM - 3/8'
- PRODUCT NAME:
- ADAPTER
- RIDING STYLE:
- STREET
$20.95 -
FEULING OIL PUMP CORP. Cam Kit Washers 8041
FEULING OIL PUMP CORP.
$45.95Proper cam timing is non-negotiable for reliable engine performance and longevity. Misaligned camshaft sprockets introduce premature chain wear, increased valve train noise, and potential catastrophic failure. The Feuling Oil Pump Corp. Cam Kit Washers...09250951- SKU:
- 09250951
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- PRODUCT NAME:
- SPROCKET SPACING ALIGNMENT/THRUST WASHER
- UNITS:
- KIT
- RIDING STYLE:
- STREET
$45.95 -
ALLOY ART Compression Release Adapter - 14 mm x 3/4" CRA-1
ALLOY ART
$20.95Designed to be used in twin plug heads, Fit into the additional spark plug hole, eliminating the dual plug function, Made in the U.S.A.09500080- SKU:
- 09500080
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- TYPE:
- COMPRESSION RELEASE
- UNITS:
- EACH
- PRODUCT NAME:
- ADAPTER
- CONNECTOR ANGLE:
- STRAIGHT
- SIZE:
- 14 MM - 3/4'
- RIDING STYLE:
- STREET
$20.95Qty in Cart: 0Quantity:Price:$20.95Subtotal:
