2018 Harley-Davidson FLHX Street Glide Parts & Accessories
Touring / Bagger
Milwaukee-Eight Touring (2017-2023)
1,198 parts available
283 Performance
174 Maintenance
741 Accessories
2018 Harley-Davidson FLHX Street Glide
About the 2018 Harley-Davidson FLHX Street Glide
The 2018 Harley-Davidson FLHX Street Glide is a definitive 'stripped-down' bagger featuring the Milwaukee-Eight 107 V-Twin engine and the iconic Batwing fairing. This model year is notable for being the second year of the M8 engine platform, offering improved heat management and significantly more torque than the previous Twin Cam generation. As the standard FLHX trim, it features traditional chrome finishes and a shorter rear wheel compared to the 'Special' (FLHXS) version.
What Makes This Trim Special
- Chrome Finishes — The standard FLHX features chrome engine covers, exhaust, and front forks, whereas the FLHXS (Special) is blacked-out.
- Infotainment System — Comes standard with the Boom! Box 4.3 system; the 6.5GT touchscreen with navigation was an optional upgrade for this trim.
- Rear Wheel Size — Uses a 16-inch Enforcer cast aluminum rear wheel, while the Special trim uses an 18-inch Talon wheel.
- Saddlebags — Equipped with standard-length hard saddlebags; the Special trim features 'stretched' bags that wrap around the exhaust.
- ABS and Security — Reflex Linked Brembo Brakes with ABS and the Smart Security System were factory options on the FLHX, but standard on the FLHXS.
Key Specifications
| Engine |
Milwaukee-Eight 107 V-Twin Produces 111 ft-lb of torque at 3,250 RPM |
| Displacement | 1,746 cc (107 cu in) |
| Fuel System | Electronic Sequential Port Fuel Injection (ESPFI) |
| Cooling | Air-cooled with precision oil-cooled cylinder heads |
| Transmission | 6-speed Cruise Drive |
| Drivetrain | Belt drive |
| Front Suspension |
49mm Dual Bending Valve (DBV) forks DBV technology provides linear damping and reduced weight |
| Rear Suspension |
Premium low-profile hand-adjustable emulsion shocks Tool-less preload adjustment via a hand knob behind the left saddlebag |
| Front Brakes | 32mm 4-piston fixed calipers, dual floating rotors |
| Rear Brakes | 32mm 4-piston fixed caliper |
| Front Tire | 130/60B19 61H |
| Rear Tire | 180/65B16 81H |
| Weight | 829 lbs (wet / running order) |
| Seat Height | 26.1 in (laden) |
| Fuel Capacity | 6.0 gal |
Ownership at a Glance
What to know about maintaining a 2018 Harley-Davidson FLHX Street Glide
Maintenance
Wear Items
- Brake Pads
- Intake Manifold Seals
Upgrades
- Stage 1 Performance Kit
- Rear Suspension
- LED Headlight
Replacements
Known Issues 3
Top reported problems from owners and mechanics
High
Oil Sumping
Oil builds up in the crankcase instead of returning to the tank, leading to friction, heat, and potential engine damage.
Medium
Transmission-to-Primary Fluid Transfer
Oil migrates from the transmission through the clutch pushrod into the primary case.
Low
Odometer Inaccuracy
Some owners report the odometer over-calculating mileage by roughly 5% compared to GPS data.
Parts Most Owners Need
Performance Upgrades 283
Fits
Fits
Fits
Fits
Fits
Moose Racing
All Balls Racing Fork Oil and Dust Seal Kits
$24.95 - $126.95
3 of 127 options fit
In Stock
Fits
Fits
Fits
Fits
Fits
Fits
Fits
Maintenance Parts 174
Fits
Fits
Fits
Moose Racing
All Balls Racing Wheel Bearing and Seal Kits
$24.95 - $84.95
4 of 197 options fit
In Stock
Fits
Fits
Alloy Art
Alloy Art Mfg. Multi Rear Brake Caliper Mount
$797.95 - $850.95
4 of 4 options fit
In Stock
Fits
Fits
Fits
Fits
Fits
Arlen Ness
Arlen Ness Big Sucker™ Stage I Air Filter Kits for M-Eight
$399.95 - $534.95
7 of 17 options fit
In Stock
Fits
Fits
Accessories 741
Fits
Fits
Fits
Fits
Fits
Fits
Fits
Fits
Fits
Fits
Fits
Fits
Arlen Ness
Arlen Ness Adjustable Driver and Passenger Floorboards
$624.95 - $889.95
2 of 6 options fit
In Stock
Frequently Asked Questions About the 2018 Harley-Davidson FLHX Street Glide
Yes, it uses Harley-Davidson's Electronic Sequential Port Fuel Injection (ESPFI) system.
No, reverse is not a standard factory feature on the Street Glide; it is only standard on Trike models.
The standard Street Glide (FLHX) has chrome finishes, a 4.3-inch screen, and a 16-inch rear wheel. The Special (FLHXS) has blacked-out finishes, a 6.5-inch touchscreen with navigation, stretched saddlebags, and an 18-inch rear wheel.
The engine oil capacity is approximately 5.0 quarts (4.7 liters) when performing a change with a new filter.
It typically uses a 30L-BS size battery (OEM Part #66010-97D) with 400+ Cold Cranking Amps (CCA).
Check for signs of oil sumping (power loss when hot), fluid transfer between the transmission and primary, and ensure the 2-year ABS brake fluid flush has been performed.
The standard FLHX came with the Boom! Box 4.3 (non-touch). The 6.5-inch touchscreen was an optional upgrade or standard on the Special trim.
There is a hand-adjustable preload knob located behind the left-side saddlebag. You must remove the saddlebag to access it.
Looking for parts for a different ride?
Browse our full catalog of rides or use the vehicle selector to find parts that fit your machine.
Search
Current Ride
No ride selected
Recently viewed products
Drag Specialties Inner...
$13.95 - $218.95
Power Commander 6
$899.95
Your cart is empty