Dedicated Subsystem WorkbenchPlatform Gen: 2017–2024

2023 Harley-Davidson Road Glide / Street Glide M8 (107/114/117) Factory Maintenance Schedule & Service Punch-List

Official manufacturer service intervals (4k, 8k, 12k, 16k, 24k miles), interactive workshop maintenance punch-list, and DIY vs dealership cost estimator for 2023 Harley-Davidson Road Glide / Street Glide M8 (107/114/117).

Gen 2017–2024

Factory Platform Compatibility: All workshop fluid capacities, maintenance milestones, torque specifications, and consumables on this specification sheet are factory-identical across model years 2017 through 2024.

Select Model Year:(Active: 2023)

2017 2018 2019 2020 2021 2022 2023 2024

Engine

1868cc

Drive

Not Available

Cooling

Precision Oil-Cooled Cylinder Heads / Air-Cooled Cylinders

Official NHTSA Safety Recalls & Technical Bulletins

0 Open Campaigns (Clean)

U.S. Department of Transportation compliance database (Title 49 U.S.C. Chapter 301).

Verify VIN on NHTSA.gov

No Active Federal Safety Recalls Reported

The U.S. DOT National Highway Traffic Safety Administration (NHTSA) records zero open safety recall campaigns for the 2023 Harley-Davidson Road Glide / Street Glide M8 (107/114/117) platform. Always check your individual 17-digit VIN at an authorized dealership or via NHTSA.gov for individual recall completions.

Factory Service Schedule

Scheduled Maintenance Punch-List & Service Estimator

Select a factory interval milestone or enter your current odometer reading to preview scheduled workshop tasks for the 2023 Harley-Davidson Road Glide / Street Glide M8 (107/114/117).

ODOMETER:MILES

FACTORY INTERVALS:

Workshop Tablet Punch-List Progress0 of 9 Tasks Signed Off (0%)

Fluids & Engine

DUE NOW~0.8 HR EST

Engine Oil & Filter Element Replacement

4.0 qt (3.8 L) SAE 20W-50 V-Twin Full Synthetic / SAE

Drain Plug Torque: 24 N·m (17.5 ft-lb)
Always install a fresh OEM aluminum crush washer (M12/M14)
Pre-lube new filter O-ring with fresh engine oil prior to spin-on install
Warm engine to operating temperature before draining for complete sediment evacuation

TOOLS: 17mm Hex Socket + 65mm 14-Flute Filter Cup
PARTS/FLUIDS: SAE Full Synthetic 4T Oil + Filter + Crush Washer

Ignition & Air

INSPECT / OK~1.2 HR EST

Spark Plug Inspection / Direct-Replacement

Harley-Davidson 6R12 / NGK DCPR7E (Gap: 0.97 mm)

Tightening Torque: 20 N·m (15 ft-lb)
Hand-thread plug completely down to cylinder head seat before applying torque wrench
Inspect electrode coloration for stoichiometric AFR balance (tan/light grey)
Apply thin film of dielectric grease to interior of coil-on-plug boots

TOOLS: 14mm / 16mm Thin-Wall Spark Plug Socket + Feeler Gauge
PARTS/FLUIDS: Harley-Davidson 6R12 / NGK DCPR7E + Dielectric Silicone Grease

Hydraulics & Brakes

INSPECT / OK~1 HR EST

Brake Fluid Full Hydraulic Flush & De-Aeration

DOT 4 High-Temperature Platinum Fluid Flush (Front Dual + Rear)

Bleeder Nipple Torque: Not Available (Do not over-torque aluminum threads)
Hygroscopic degradation: brake fluid absorbs atmospheric moisture; discard if moisture > 3.7%
Flush master cylinder reservoir completely before cycling ABS hydraulic modulator
Wash painted/plastic bodywork immediately with clean water if fluid contact occurs

TOOLS: 8mm / 10mm Bleeder Box Wrench + Clear Bleeder Hose + Catch Bottle
PARTS/FLUIDS: DOT 4 High-Temperature Platinum Fluid + Isopropyl Alcohol

Hydraulics & Brakes

DUE NOW~0.4 HR EST

Rotor Thickness & Pad Friction Lining Inspection

Front Min: Refer to Rotor Carrier Stamp | Rear Min: Refer to Rotor Carrier Stamp

Front Caliper Mounting Torque: Not Available - Refer to Factory Workshop Manual
Minimum friction material thickness: 1.0 mm (excluding steel backing plate)
Check rotor surface for deep grooving, heat bluing, or radial thermal stress cracks
Verify caliper slide pins are free of corrosion and lubricated with silicone grease

TOOLS: Digital Micrometer (0-25mm) + Vernier Caliper + Torx T50 / 12mm Socket
PARTS/FLUIDS: Brake Contact Degreaser + High-Temp Synthetic Caliper Pin Grease

Drivetrain

DUE NOW~0.4 HR EST

Drive Belt Deflection & Cog Inspection

Belt Deflection 5-7 mm @ 10 lbs

Check drive belt deflection using spring-loaded belt tension tester
Inspect cog teeth for stone chips, cord fraying, or uneven tooth wear
Verify rear wheel alignment hash marks are matched evenly on both swingarm sides

TOOLS: Rear Axle Socket (27mm/32mm) + Alignment Gauge + Torque Wrench
PARTS/FLUIDS: O-Ring Safe Chain Degreaser + Synthetic Chain Lube

Ignition & Air

INSPECT / OK~0.5 HR EST

Engine Air Intake Filter Element Service

OEM High-Efficiency Paper Element / Multi-Layer Cotton

Remove fuel tank / side fairing panels to access airbox cover screws
Inspect airbox lower cavity and drain hose for blowby oil condensation
Do not blow compressed air through viscous paper filter elements (destroys filtration matrix)
Verify airbox lid seal is properly seated to prevent unfiltered dust bypass

TOOLS: 4mm / 5mm Hex Allen Wrenches + JIS #2 Screwdriver
PARTS/FLUIDS: Replacement OEM Air Filter Element + Clean Microfiber Cloth

Fluids & Engine

INSPECT / OK~1 HR EST

Engine Cooling System Flush & Radiator De-Aeration

Silicate & Borate-Free HOAT 50:50 Premix (-37°C / -35°F)

Only open radiator cap when engine is completely cold (ambient temperature)
Drain coolant from water pump drain bolt and radiator lower hose connection
Flush cooling circuit with distilled water before filling with fresh 50:50 HOAT coolant
Cycle engine until radiator fan activates, then burp cooling jacket to eliminate air pockets

TOOLS: 8mm / 10mm Drain Bolt Socket + Catch Pan + Radiator Cap Tester
PARTS/FLUIDS: Silicate-Free Long-Life Motorcycle Coolant (50:50 Distilled Water Premix)

Valvetrain

INSPECT / OK~3.8 HR EST

Valve Clearance Inspection & Camshaft Timing Audit

Not Available

Strict requirement: engine must be cold (temperature <= 35°C / 95°F) for accurate readings
Rotate crankshaft to compression Top Dead Center (TDC) for each cylinder firing order
Shim Diameter: Not Available
Replace valve cover gasket and spark plug well O-rings upon reassembly

TOOLS: Angled Blade Feeler Gauges (0.04-0.35mm) + Digital Micrometer + Magnet Pen
PARTS/FLUIDS: Valve Shim Assortment Kit + OEM Valve Cover Gasket + ThreeBond Liquid Gasket

Chassis & Safety

DUE NOW~0.5 HR EST

Chassis, Axle & Safety Critical Fastener Audit

Front Axle: 95 N·m (70 ft-lb) | Rear Axle: 136 N·m (100 ft-lb)

Front Axle Pinch Bolts: Factory Torque Spec
Front Caliper Mounting Bolts: Not Available - Refer to Factory Workshop Manual
Check triple clamp pinch bolts, handlebar clamps, and footpeg brackets
Inspect steering head bearings for notchiness or play at center-detent

TOOLS: Calibrated 3/8" & 1/2" Click-Type Torque Wrenches + Metric Sockets
PARTS/FLUIDS: Blue Medium-Strength Threadlocker (Loctite 243)

Tool Pre-Flight

Workshop Tool & Chemical Pre-Flight Card

Calibrated Instruments & Drive Specifications

Sockets, Hex Bits & Wrenches

17mm Metric Hex Socket

Engine oil drain plug removal & torquing

65mm 14-Flute Oil Filter Cup Wrench

Spin-on oil filter removal & install (3/8" drive)

14mm / 16mm Thin-Wall Spark Plug Socket

Spark plug removal & installation

12mm / 14mm Radial Caliper Socket

Brake caliper mounting bolts

8mm / 10mm Bleeder Box Wrench

Hydraulic caliper bleed nipple opening

Front & Rear Axle Sockets (19mm - 32mm)

Wheel axle spindle nuts & chain adjustment

Calibrated Precision Instruments

1/4" Drive Torque Wrench (5 - 25 N·m)

Bleed valves, spark plugs, casing screws

1/2" Drive Torque Wrench (30 - 160 N·m)

Axle nuts, caliper bolts, drain plugs

Angled Blade Feeler Gauge Set (0.04 - 0.35 mm)

Valve clearances & spark plug electrode gap

Digital Rotor Micrometer (0 - 25 mm)

Brake disc minimum discard thickness verification

Workshop Chemicals & Consumables

Blue Medium Threadlocker (Loctite 243)

Brake caliper, rotor, and footpeg fasteners

High-Temp Anti-Seize Paste

Spark plug threads & axle spindle coating

DOT 4 Synthetic Brake Fluid

Hydraulic brake & clutch system flushing

Synthetic O-Ring Chain Degreaser & Lube

Drive chain cleaning & roller lubrication

New OEM Aluminum Crush Washers (M12 / M14)

Oil drain plug sealing (single-use)

Dealership Flat-Rate Labor vs. DIY Workshop Cost Estimator

Compare authorized dealership retail service invoicing against performing scheduled maintenance in your private shop.

DEALER LABOR RATE:$150/hr

Estimated Dealership Retail Invoice

Flat-Rate Labor (2.1 hrs @ $150/hr):$315.00

OEM Fluids & Parts (35% Dealer Markup):$95.00

Shop Supplies & Waste Disposal Fee:$25.00

Dealership Quote Subtotal:$435.00

DIY Private Workshop Investment

Factory Fluids & Replacement Filters:$70.00

Workshop Mechanical Labor:$0.00 (Owner Performed)

Environmental Disposal Fee:$0.00 (Free Auto Recycling)

Total DIY Investment:$70.00

You Save $365.00 (84%) by Servicing in Your Workshop

Includes matched OEM fluid capacities, filter, and authentic factory torque specifications.

1-Click Factory Service KitOEM Spec Fluid Capacities Matched

Workshop Maintenance Kit & Factory Fluids

Authentic factory-grade motor oil, oil filter, and high-temp brake fluid matched precisely to 2023 Harley-Davidson Road Glide / Street Glide M8 (107/114/117) capacities.

Full Kit Subtotal

$53.35

20W-50 Heavy-Duty Synthetic

Silkolene Comp 4 4T Oil 20W-50 (1 Quart)

1-Quart Bottles (x4 Included)

Matches factory 20W-50 spec (Oil spec: 4.0 qt (3.8 L) SAE 20W-50 V-Twin Full Synthetic)

Item Price

$47.80($11.95 ea)

DOT 4 Synthetic Formula

EBC High-Performance DOT 4 Synthetic Brake Fluid

8.8 oz (250 ml) Workshop Bottle

Meets & exceeds factory DOT 4 High-Temperature Platinum Fluid specifications

Item Price

$5.55

Factory OEM Spark Plug Spec

Harley-Davidson 6R12 / NGK DCPR7E

Gap: 0.97 mm (0.038 in)

Inspection milestone: Not Available. Exact factory part specification.

Authentic OEM Reference

Search OEM Plugs →

Complete Workshop Maintenance Package3 Essential Service Items

Includes 20W-50 Heavy-Duty Synthetic engine oil (1-Quart Bottles (x4 Included)), high-flow filter & DOT 4 fluid.

Kit Total

$53.35

Explore Other Subsystems for this 2023 Harley-Davidson Road Glide / Street Glide M8 (107/114/117)

Jump straight into dedicated factory specifications and interactive workshop diagnostic engines.

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Subsystem Guide/torques

Fastener Torques

Engine drain plug, axle spindles, caliper mounts, triple clamp pinch bolts & thread lubrication derating guide.

Open Dedicated Workbench →

Subsystem Guide/fluids

Fluids & Capacities

Oil: 4.0 qt (3.8 L) SAE 20W-50 V-Twin Full Synthetic • Coolant: 1.0 qt (0.95 L) for Twin-Cooled models (50/50 OAT Extended Life) • Brake: DOT 4 High-Temperature Platinum Fluid

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Subsystem Guide/fuses-relays