Iron Stable

Harley-Davidson FAT BOY S Oils & Fluids

Genuine HD oils & fluids and aftermarket alternatives that fit the FAT BOY S — all years. Select your year for exact fitment and pricing.

Select your year for exact fitment & prices

20172016

Genuine Harley-Davidson (13)

H-D 360 Motorcycle Oil 20W50, 4 Litres

Genuine Harley-Davidson

H-D 360 Motorcycle Oil 20W50, 4 Litres

62600042B
Iron Pass £46.80£55.06View
Engine Brightner Cleaner

Genuine Harley-Davidson

Engine Brightner Cleaner

93600068
Iron Pass £18.67£21.96View
Revolution Engine Coolant/Antifreeze, 1 Gallon

Genuine Harley-Davidson

Revolution Engine Coolant/Antifreeze, 1 Gallon

99822-02A
Iron Pass £26.40£31.06View
DOT 4 Platinum Brake Fluid, 12 oz

Genuine Harley-Davidson

DOT 4 Platinum Brake Fluid, 12 oz

41800773
Iron Pass £8.76£10.31View
Screamin' Eagle SYN3 Full Synthetic Oil, 1 Litre

Genuine Harley-Davidson

Screamin' Eagle SYN3 Full Synthetic Oil, 1 Litre

62600153
Iron Pass £17.81£20.95View
H-D 360 SAE 50 Motorcycle Oil, 1 Litre

Genuine Harley-Davidson

H-D 360 SAE 50 Motorcycle Oil, 1 Litre

62600018
Iron Pass £10.68£12.56View
H-D Ethanol Guard Fuel Stabilizer

Genuine Harley-Davidson

H-D Ethanol Guard Fuel Stabilizer

91600001
Iron Pass £6.57£7.73View
H-D 360 20W-50 Motorcycle Oil, 1 Litre

Genuine Harley-Davidson

H-D 360 20W-50 Motorcycle Oil, 1 Litre

62600017
Iron Pass £10.68£12.56View
Screamin' Eagle Heavy Fork Oil, 16 oz

Genuine Harley-Davidson

Screamin' Eagle Heavy Fork Oil, 16 oz

62600027
Iron Pass £9.12£10.73View
SYN Blend 15W50 Motorcycle Oil, 1 Litre

Genuine Harley-Davidson

SYN Blend 15W50 Motorcycle Oil, 1 Litre

62600101
Iron Pass £14.21£16.72View
H-D Type E Fork Oil

Genuine Harley-Davidson

H-D Type E Fork Oil

62600026
Iron Pass £9.12£10.73View
Heavy Synthetic Gear Oil, 1 Litre

Genuine Harley-Davidson

Heavy Synthetic Gear Oil, 1 Litre

62600093
Iron Pass £22.36£26.30View
H-D Type B Fork Oil

Genuine Harley-Davidson

H-D Type B Fork Oil

62600025
Iron Pass £9.12£10.73View

Aftermarket alternatives

Aftermarket oils & fluids that fit the FAT BOY S. Genuine Harley-Davidson is listed above, not here.

Putoline, 80W90 Heavy Gear transmission oil. BiB 15L

Putoline

Putoline, 80W90 Heavy Gear transmission oil. BiB 15L

In stock
Iron Pass £123.88£145.74View
Putoline, 20W50 Full synthetic motor oil. BiB 15L

Putoline

Putoline, 20W50 Full synthetic motor oil. BiB 15L

In stock
Iron Pass £177.74£209.10View
Putoline, brake fluid DOT 4. BiB 15L

Putoline

Putoline, brake fluid DOT 4. BiB 15L

In stock
Iron Pass £151.56£178.30View
Liqui Moly, HD synthetic 20W-50 Street motor oil. 4 liter

Liqui Moly

Liqui Moly, HD synthetic 20W-50 Street motor oil. 4 liter

In stock
Iron Pass £59.55£70.06View
Liqui Moly, HD synthetic 20W-50 Street motor oil. 20 liter

Liqui Moly

Liqui Moly, HD synthetic 20W-50 Street motor oil. 20 liter

In stock
Iron Pass £273.29£321.52View
Liqui Moly, HD synthetic 20W-50 Street motor oil. 1 liter

Liqui Moly

Liqui Moly, HD synthetic 20W-50 Street motor oil. 1 liter

In stock
Iron Pass £16.24£19.10View
MCS, ''Big Oil'' service kit. Mineral. Chrome filter

MCS

MCS, ''Big Oil'' service kit. Mineral. Chrome filter

In stock
Iron Pass £55.33£65.09View
MCS, ''Big Oil'' service kit. Full synthetic. Chrome filter

MCS

MCS, ''Big Oil'' service kit. Full synthetic. Chrome filter

In stock
Iron Pass £66.83£78.62View
MCS, ''Big Oil'' service kit. Full synthetic. Black filter

MCS

MCS, ''Big Oil'' service kit. Full synthetic. Black filter

In stock
Iron Pass £64.92£76.38View
MCS, engine oil service kit. 20W50 Synthetic

MCS

MCS, engine oil service kit. 20W50 Synthetic

In stock
Iron Pass £38.06£44.78View
MCS, engine oil service kit. 20W50 Synthetic

MCS

MCS, engine oil service kit. 20W50 Synthetic

In stock
Iron Pass £39.97£47.02View
MCS, engine oil service kit. 20W50 Mineral

MCS

MCS, engine oil service kit. 20W50 Mineral

In stock
Iron Pass £31.82£37.43View