Dedicated Subsystem WorkbenchPlatform Gen: 1994–2026

2023 Harley-Davidson Road King / Road King Special (FLHR / FLHRC / FLHRXS) Fastener Torque Specs & Tightening Matrix

Factory torque specs for 2023 Harley-Davidson Road King / Road King Special (FLHR / FLHRC / FLHRXS): oil drain plug, axle nuts, caliper mount bolts, spark plugs, triple clamp pinch bolts with thread lubrication derating guide.

Technical PassportOEM VERIFIED

Engine

1868cc

Cooling

Air / Oil-Cooled with Rubber-Isolated Frame Mounts

Final Drive

Belt Drive

Engine Oil

4.70 L (5.00 US qt)

Spark Plug

H-D 6R10 / 6R12

Front Tire

130/60B19 61H (Special) / 130/80B17 65H (Standard)

Gen 1994–2026

Factory Platform Compatibility: All workshop fluid capacities, maintenance milestones, torque specifications, and consumables on this specification sheet are factory-identical across model years 1994 through 2026.

SPECS-TO-CART BUNDLESFactory Direct-Fit Maintenance Bundles Available

1-Click verified Motul engine oil service kits, race filters, spark plugs, and brake fluid pre-measured for this 2023 Harley-Davidson Road King / Road King Special (FLHR / FLHRC / FLHRXS).

Configure Service Bundles→

Select Model Year:(Active: 2023)
33 Production Years (1994–2026)

1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Suggested Items6 Verified Workshop Consumables Available for this Job

View Suggested Items ↓

Suggested Items · You Might Be Interested In

Suggested Items & Workshop Consumables for this Fastener & Chassis Torque Job

Task-critical chemicals, precision tools, and replacement consumables dynamically matched to the 2023 Harley-Davidson Road King / Road King Special (FLHR / FLHRC / FLHRXS) factory engineering specifications.

6 Verified Products Found

CRITICAL THREADLOCKER

PERMATEXIn Stock

PERMATEX Gel Threadlocker - Blue

Prevents critical engine, brake caliper, and sprocket fasteners from backing out under severe harmonic vibration.

$14.99USD

ANTI-SEIZE LUBRICANT

MOTOREXIn Stock

MOTOREX COPPER ANTI-SEIZE SPRAY

Prevents galling, galvanic corrosion, and thread seizure on spark plug threads, exhaust studs, and axle pinch bolts.

$18.50USD

JIMS USA Specialty Precision Sockets, Alignment Pins & Adapters

PRECISION DRIVE TOOL

JIMSIn Stock

JIMS USA Specialty Precision Sockets, Alignment Pins & Adapters

Precision chrome vanadium metric drive tool to torque fasteners to factory spec without rounding fastener heads.

$27.90USD

CALIPER REBUILD ESSENTIAL

EBC BRAKESIn Stock

EBC Standard Brake Pads

Direct replacement high-friction pads required when servicing and re-torquing front or rear brake caliper assemblies.

$24.72USD

DRAG SPECIALTIES BRAKE PARTS CLEANER DRAG

ROTOR & THREAD CLEANER

DRAG SPECIALTIESIn Stock

DRAG SPECIALTIES BRAKE PARTS CLEANER DRAG

Zero-residue fast-evaporating solvent to strip old thread compound, grease, and brake dust from fastener threads.

$8.95USD

FINAL DRIVE LUBRICANT

MOTULIn Stock

MOTUL CHAIN LUBE ROAD 400ML

High-tack synthetic lubricant required when torquing rear axle nuts and setting final drive chain tension.

$15.00USD

Critical Fastener Torque Tolerances

FSM Certified Specs

Factory workshop tightening torque ratings for axles, calipers, engine plugs, and triple clamps.

Lube:

Fastener / Component	Torque (N·m)	Service Note & Thread Guidance	System
No fasteners matching '' found in this category.

Technical Standard:Always calibrate torque wrenches prior to critical chassis fastening. Values reflect clean, dry threads unless threadlocker or anti-seize is specifically noted.

Official NHTSA Safety Recalls & Technical Bulletins

3 Active Campaigns

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

Verify VIN on NHTSA.gov

The U.S. National Highway Traffic Safety Administration reports 3 safety recall campaigns associated with this platform. Independent repair shops and riders should confirm that authorized dealership warranty remedies have been applied.

NHTSA #18V734000POWER TRAIN:CLUTCH ASSEMBLY

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Defect Description

Harley Safety Recall 0173: Secondary clutch actuator piston seal tear on 2017–2018 Road King and Road King Special models.

Safety Hazard / Consequence

Clutch disengagement failure when stopped in gear creates unintended motion hazard.

Factory Remedy & Repair Action

Dealers install upgraded secondary clutch actuator assembly (Kit #91500093).

NHTSA #16V471000POWER TRAIN:CLUTCH ASSEMBLY

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NHTSA #18V076000SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ABS

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OEM Workshop Archives

Official Factory Service Bulletins & Field Updates

3 Documented Bulletins

Bulletin #HD-0173Safety Recall Bulletin 0173 / NHTSA 18V-734: Touring & Softail Secondary Hydraulic Clutch Actuator Piston Assembly (Kit #91500093)

Source: RCMN-18V734-8825.pdf

Mandated Torques:Torque: 10–12 N·m (88–106 in-lb) (Transmission Side Cover Bolts - Cross Pattern)Torque: 26–30 N·m (19–22 lb-ft) (Hydraulic Clutch Line Banjo Bolt)Torque: 10–12 N·m (88–106 in-lb) (Secondary Actuator Bleeder Screw)

Consumable Specs:Harley-Davidson DOT 4 Platinum Brake FluidTransmission Side Cover Gasket

Genuine Part Numbers:9150009337200131A25700445

Bulletin #HD-0169Safety Recall Bulletin 0169 / NHTSA 16V-471: Hydraulic Clutch Master Cylinder Disengagement Inspection & Seal Flush

Source: RCRIT-16V471-6645.pdf

Mandated Torques:Torque: 8.0–10.2 N·m (70–90 in-lb) (Handlebar Clutch Master Cylinder Clamp Screws)Torque: 26–30 N·m (19–22 lb-ft) (Clutch Master Banjo Bolt)

Consumable Specs:Harley-Davidson DOT 4 Platinum Hydraulic FluidPurge Tubing & Catch Bottle

Genuine Part Numbers:37200025C41800041

Recalls 0169 & 0173 • NHTSA 16V-471 & 18V-734

Harley-Davidson Road King & Touring Secondary Hydraulic Clutch Actuator Architecture

Secondary clutch actuator cylinder piston seal inspection, DOT 4 Platinum purge, and transmission side cover torque.

Hydraulic Banjo Bolt26–30 N·m (19–22 lb-ft)

Actuator Bleeder Screw10–12 N·m (88–106 in-lb)

Side Cover Screws10–12 N·m (Cross Pattern)

Mandated Hydraulic FluidHarley DOT 4 Platinum

Bulletin #HD-0171Safety Recall Bulletin 0171 / NHTSA 18V-076: VRSC V-Rod & Touring ABS Hydraulic Control Unit (HCU) Valve Solenoid Flush

Source: RCRIT-18V076-3366.pdf

Mandated Torques:Torque: 26–30 N·m (19–22 lb-ft) (Front & Rear Master Cylinder Banjo Bolts)Torque: 10–12 N·m (88–106 in-lb) (Caliper Bleeder Screws)Torque: 38–52 N·m (28–38 lb-ft) (Front Caliper Mount Bolts)

Consumable Specs:Harley-Davidson DOT 4 Platinum Brake Fluid (Part #99953-99)Moisture Tester / Boiling Point Analyzer (< 3% moisture limit)

Genuine Part Numbers:99953-9942865-06B41800041