Harley-Davidson Iron 1200 (XL1200NS Evolution) — OEM Fluid, Tire Pressure & Maintenance Specs
1,202cc Air-Cooled 45° V-Twin Pushrod OHV Evolution 1200 (Rubber-Mounted) · Source: Harley-Davidson Iron 1200 (XL1200NS Evolution) (2018–2021) Official Owner’s Manual Maintenance Specifications
According to the Harley-Davidson Iron 1200 (XL1200NS Evolution) (2018–2021) Official Owner’s Manual Maintenance Specifications, the 2018–2021 Harley-Davidson Iron 1200 (XL1200NS Evolution) (chassis XL1200NS) requires 2.4 L (2.54 US qt) of SAE 20W-50 (JASO MA2, H-D 360 SAE 20W-50 / SYN3) engine oil for a drain-only change and 2.6 L (2.75 US qt) with filter service (HD 63798-99A / HF170B). Standard solo cold tire pressure is 207 kPa / 2.07 bar / 30 PSI front (100/90B19 57H) and 276 kPa / 2.76 bar / 40 PSI rear (150/80B16 77H), paired with 2× HD 6R12 (32362-04A) spark plug(s) and a HD 65958-04B / YTX14L-BS battery.
Drain only: 2.4 L (2.54 US qt)
R 276 kPa (2.76 bar)
Est. Range: ~245 km (152 mi)
1. Engine Lubrication, Filter & Clutch Specifications
| Clutch Architecture | Wet Multi-Plate Manual Clutch NEVER use JASO MB |
|---|---|
| Recommended Viscosity & Grade | SAE 20W-50 · JASO MA2 · H-D 360 SAE 20W-50 / SYN3 |
| Oil Volume (Drain / With Filter / Overhaul) |
• Drain only: 2.4 L (2.54 US qt) • With filter/strainer: 2.6 L (2.75 US qt) • Complete dry overhaul: 2.8 L (2.96 US qt) |
| OEM Oil Filter Code & Type | HD 63798-99A / HF170B |
| Correct Oil Level Check Method | At full operating temperature resting ON THE SIDESTAND (Jiffy Stand); thread dipstick in to read |
| Primary Chaincase Fluid | 946 ml (0.95 L) — H-D Formula+ Primary & Transmission Fluid (946 ml / 1.0 US qt shared primary + 5-speed gearbox) |
2. Cold Tire Pressures, Wheels, Ignition & Drivetrain
| Front / Rear OEM Tire Sizes | Front: 100/90B19 57H · Rear: 150/80B16 77H (Tubeless) |
|---|---|
| Cold Tire Pressure — Solo Riding |
Front: 207 kPa / 2.07 bar / 30 PSI Rear: 276 kPa / 2.76 bar / 40 PSI |
| Cold Tire Pressure — 2-Up / Loaded Touring |
Front: 207 kPa / 2.07 bar / 30 PSI Rear: 290 kPa / 2.90 bar / 42 PSI |
| OEM Spark Plug & Quantity | HD 6R12 (32362-04A) × 2 (Gap: 0.97–1.09 mm) |
| OEM Battery Code & Rating | HD 65958-04B / YTX14L-BS (12V 12.0Ah AGM (Reverse Left-Negative L Terminal)) |
| Final Drive Maintenance | Carbon/Aramid Reinforced Secondary Belt — Inspect belt deflection and pulley debris |
| Brake Fluid & Coolant | DOT 4 · Air/Oil-Cooled Engine (No liquid coolant) |
3. Ergonomics, Range & Scheduled Service Intervals
| Displacement · Max Power · Peak Torque | 1202 cc · 66 hp @ 6,000 rpm · 96 N·m (70.8 lb-ft) @ 3,500 rpm |
|---|---|
| Seat Height & Wet Curb Weight | 735 mm (28.9 in) · 256 kg (564 lbs) |
| Fuel Tank & Est. Real-World Range | 12.5 L (3.3 US gal) · ~19.6 km/L → ~245 km (152 mi) |
| OEM Scheduled Maintenance Intervals |
• First Break-In: 1,600 km • Engine Oil / Filter: 8,000 km / 8,000 km • Air Filter / Spark Plug: 24,000 km / 32,000 km • Valve Clearance Check: 48,000 km |
4. Generation Cutoffs & Real-World Wrenching Gotchas
Model-Year & Chassis Generation Notes
Produced from 2018 to 2021, the XL1200NS dropped the 1,202cc Evolution V-twin into the Iron 883 chassis with mini-ape bars, speed screen cowl, café solo seat, and 1970s AMF-era tank stripes.
Oil & Clutch Mechanical Engineering Note
Using the classic Sportster 2-Hole dry-sump layout, the under-seat tank holds 2.6 L of SAE 20W-50 (with HF170B filter) while the shared primary and 5-speed gearbox take 946 ml of Formula+.
Garage Wrenching Gotchas
- Engine oil drains via a clipped rubber hose beneath the swingarm pivot rather than a sump bolt; inspect the rubber hose for dry-rot cracks and avoid over-cinching the worm clamp.
- Sportsters require a left-negative YTX14L-BS battery packed tightly behind the left cover; unbolt the negative ground cable at the crankcase stud first to avoid arcing against the frame.
5. Frequently Asked Questions (FAQ)
How are engine and separate drivetrain fluid capacities split on the Harley-Davidson Iron 1200 (XL1200NS Evolution)?
The engine sump takes 2.4 L drain-only and 2.6 L (2.75 US qt) with filter (HD 63798-99A / HF170B) of SAE 20W-50 (JASO MA2), while isolated drivetrain cavities (primary chaincase 946 ml) require dedicated gear/chaincase fluid.
How do you accurately check the oil level on the Iron 1200 (XL1200NS Evolution), and what are its service intervals?
Bring the engine to full operating temperature and check the Full Hot mark with the motorcycle resting on its sidestand (Jiffy Stand) on level pavement—measuring upright leads to crankcase overfill and breather blow-by. Factory oil change intervals are every 8,000 km, with valve clearance inspection every 48,000 km.
What are the cold tire pressures, puncture repair type, seat height, and range of the Iron 1200 (XL1200NS Evolution)?
Fitted with 100/90B19 57H front and 150/80B16 77H rear tubeless rims (compatible with roadside plug kits), set cold tire pressures to 30 / 40 PSI (207/276 kPa) solo or 30 / 42 PSI loaded. Seat height is 735 mm (28.9 in) at 256 kg wet weight, delivering ~245 km per 12.5 L tank.