Harley-Davidson Iron 883 (XL883N Evolution) — OEM Fluid, Tire Pressure & Maintenance Specs
883cc Air-Cooled 45° V-Twin OHV Pushrod Evolution Rubber-Mount (2-Hole Dry Sump) · Source: Harley-Davidson Sportster Models (XL883N) Official Owner’s Manual
According to the Harley-Davidson Sportster Models (XL883N) Official Owner’s Manual, the 2014–2022 Harley-Davidson Iron 883 (XL883N Evolution) (chassis XL883N/LE2) requires 2.4 L (2.54 US qt) of SAE 20W-50 (JASO MA2, H-D 360 SAE 20W-50 / Screamin’ Eagle SYN3 20W-50) engine oil for a drain-only change and 2.6 L (2.75 US qt) with filter service (HD 63798-99A (Chrome) / 63731-99A (Black) / 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: ~255 km (158 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 / Screamin’ Eagle SYN3 20W-50 |
| 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 (Chrome) / 63731-99A (Black) / 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; primary magnetic drain plug 19–40 N·m) |
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 (0.038–0.043 in)) |
| OEM Battery Code & Rating | HD 65958-04B / YTX14L-BS (12V 12.0Ah MF AGM (Left-Side Negative Terminal)) |
| Final Drive Maintenance | Aramid/Carbon Secondary Belt (137T) — Check 6.4–7.9 mm deflection at 10 lbs force |
| Brake Fluid & Coolant | DOT 4 · Pure Air-Cooled 45° Evolution V-Twin (No liquid coolant) |
3. Ergonomics, Range & Scheduled Service Intervals
| Displacement · Max Power · Peak Torque | 883 cc · 51 hp @ 6,000 rpm · 68 N·m (50.2 lb-ft) @ 4,750 rpm |
|---|---|
| Seat Height & Wet Curb Weight | 760 mm (29.9 in) · 256 kg (564 lbs) |
| Fuel Tank & Est. Real-World Range | 12.5 L (3.3 US gal) · ~20.4 km/L → ~255 km (158 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
This covers the final 2014–2022 CAN-bus & ABS generation of the iconic air-cooled Evolution XL883N. Starting in 2014, Sportsters adopted bigger 300mm brakes with DOT 4 fluid (never mix with older pre-2007 DOT 5 silicone systems!), and 2016+ models gained upgraded cartridge forks and machined 9-spoke tubeless cast wheels.
Oil & Clutch Mechanical Engineering Note
Evolution Sportsters use a classic 2-Hole dry-sump layout: 1) 2.6 L (2.8 US qt) of SAE 20W-50 in the right-side oil tank with spin-on filter 63798-99A (HF170B), and 2) 946 ml (1.0 US qt) of H-D Formula+ shared between the primary chaincase, wet clutch, and 5-speed gearbox.
Garage Wrenching Gotchas
- There is NO metal engine-oil drain bolt underneath an Evo Sportster—engine oil drains from a clipped rubber hose with a worm-drive clamp and plug under the frame! The magnetic hex plug under the left case drains the 946 ml primary/transmission cavity.
- Never top up the right-side dry-sump oil tank cold after the bike has been parked—oil slowly seeps past the check ball into the crankcase (wet-sumping) and returns to the tank once started, blowing the pop-up filler cap off if overfilled!
5. Frequently Asked Questions (FAQ)
How many oil compartments does a Harley-Davidson Iron 883 have?
Two compartments (2-Hole): 2.6 L of SAE 20W-50 for the dry-sump engine tank, plus 946 ml (1 US qt) of Formula+ inside the left derby cover lubricating both the primary chain/clutch and 5-speed transmission.
Why does the Iron 883 require a YTX14L-BS battery instead of a standard YTX14-BS?
The L suffix (YTX14L-BS) places the negative terminal on the left (front/accessible side) to match Harley’s short heavy-gauge battery cables—a standard YTX14-BS has reversed polarity layout and will not reach!
What is the factory cold tire pressure for the Harley Iron 883?
Set 30 PSI (207 kPa) front and 40 PSI (276 kPa) rear cold solo, or 42 PSI (290 kPa) rear with a passenger.