This is the Ducati Monster 821 maintenance schedule and service intervals — sourced from the owner’s manual, and also referencing parts diagrams and the shop manual.
This applies to these models: the 2015, 2016, 2017, 2018, 2019 and 2020 Ducati Monster 821. It also applies to the Monster 821 Stripe, Monster 821 Stealth, and the Monster 821 Dark, which primarily had cosmetic differences.
Here are all our Ducati Monster maintenance schedules:
Air/oil-cooled Ducati Monsters
- Ducati Monster 900 (Carb)
- Ducati Monster 900 i.e. (EFI)
- Ducati Monster 800 (WIP)
- Ducati Monster 1000 / S
- Ducati Monster S2R800
- Ducati Monster S2R1000
- Ducati Monster 1100 (including S, Evo)
- Ducati Monster 659 Gen 1
- Ducati Monster 659 Gen 2
- Ducati monster 620 i.e.
- Ducati Monster 695
- Ducati Monster 696
- Ducati Monster 796
Liquid-cooled Ducati Monsters
The Ducati Monster 821 was released in 2015 to replace the earlier Ducati Monster 796, which had an air/oil-cooled motor.
The Monster 821 has the same 821 Testastretta engine that was in the Ducati Hypermotard 821 — an 821 cc liquid-cooled 8-valve 90-degree V-twin that in base form makes about 82 kW (111 bhp) at 9250 rpm.
It’s a great engine — but in terms of maintenance, the most important thing is that it has a wide (for Ducati) 18,000 mile or 30,000 km valve inspection interval. Considering that there are now four valves per cylinder as standard, this is a huge blessing!
The Monster 821 also has five-year belt replacement intervals, another large improvement over earlier manuals which required 2-year replacements (though most owners do it between four and five years anyway).
In 2021, the Monster 2021 was replaced with the new Ducati Monster and Monster+, which some refer to as the Monster 937, referring to the larger engine capacity.
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What you need to maintain the Ducati Monster 821
Aside from general motorcycle maintenance tools, the following is a list of consumables (things like oil, spark plugs etc.) you need to maintain the Ducati Monster 821.
|Item||Ducati Monster 821 spec|
|Oil||Ducati recommends Shell Advance Ultra 15W-50 motorcycle oil, or another high-quality synthetic motorcycle oil like Motul 7100 15W-50 or Mobil 1 Synthetic 15W-50.|
|Oil filter||Genuine Ducati part is 44440037A. I’d suggest removing that and using a HifloFiltro HF153RC oil filter which can be changed with a normal wrench.|
|Brake fluid, Clutch fluid||Ducati recommends Shell Advance DOT 4, but that’s quite hard to find, so Castrol DOT 4 Synthetic is a good and very high-quality alternative.|
|Coolant||Ducati recommends Shell Advance Coolant or a 35-40% mix of Glycoshell, a low-silicate, and nitrite-, amine-, and phosphate-free coolant. Motorex M3.0 is a suitable alternative.|
|Timing belt||Is it time to change the timing belt? Don’t put it off… a broken timing belt will cost you a lot! You need part number 73740252A (and you need two).|
|Front brake pads||Standard brake pads code is 61341021A. You can also use EBC FA630HH for more bite/feel.|
|Rear brake pads||Use original part number 61340951A, EBC part number FA266HH for more bite/feel (and availability online)|
|Spark plugs||NGK code MAR9A-J. Note they’re sold individually (and you have two cylinders).|
|Air filter||The part number for the air filter is 42610191A. You can also use K&N DU-1006.|
You may also need the following general consumables to maintain your Monster 821.
|Paddock Stand — Makes maintaining your chain or doing other maintenance much easier.|
|Motul chain paste — one of the most highly-regarded chain lubes. Easy to apply, doesn’t fling off. If you need more stuff, get the Motul chain care kit as an affordable package.|
|Always good to have on hand lithium soap-based grease for lubing external pivot points (like the swingarm) and bearings.|
|Use Protect all cable life to lubricate your cables and controls.|
Regular maintenance for the Ducati Monster 821
This is maintenance that you can do yourself (though the manual says you need a dealer to do it).
Using the motorcycle under extreme conditions, such as very damp and muddy roads or dusty and dry environment, could cause above-average wear of components like the drive system, the brakes or the air filter. If the air filter is dirty, the engine could get damaged. So replace/maintain those more often if you put them under duress.
Every 1000 km/600 miles miles OR 6 months (whichever comes earlier, perform the following maintenance:
|Monster 821 regular maintenance (every 1000 km / 600 mi or 6 months)|
|Check engine oil level (top up with Shell Advance Ultra if required)|
|Check brake fluid level (Castrol DOT 4)|
|Check tyre pressure and wear|
|Check the drive chain tension and lubrication (lubricate with Motul chain paste)|
|Check brake pads, replacing if necessary (front: 2x EBC FA630HH, rear: EBC FA266HH)|
Ducati Monster 821 Maintenance Schedule Table
The following is the list of maintenance operations and to be done on this motorcycle with a distance or time interval — whichever comes earlier. This maintenance schedule is in the same format as in the manual, though altered to fit this screen.
- If you ride your motorcycle off road or in dirty or wet conditions, you might have to do maintenance more frequently than scheduled, particularly on the air filter and chain.
- Items marked [D] require dealer-specific tools/resources
- Past the end of the maintenance schedule, keep following it in the pattern shown
- Since the 821 is no longer sold new, the break in schedule is not shown below.
Ducati Monster 821 Service Intervals
The Ducati Monster 821 has 9000 mile / 15000 km service intervals. At every service, change the engine oil and filter.
You should also change the spark plug at every oil service, and either clean or change the air filter.
The valve service intervals are every 18000 miles or 30000 kms. At these services, check the valve clearances and also change the timing belts.
If you don’t do that mileage in five years change the timing belts at the five year point.
|Km. x 1000||15||30||45||60||Every|
|mi x 1 000||9||18||27||36||(Months)|
|[D] Read the error memory with DDS and check of software version update on control units||•||•||•||•||12|
|[D] Check the presence of any technical updates and recall campaigns||•||•||•||•||12|
|Change engine oil and filter (Shell Advance Ultra oil, HF153RC filter)||•||•||•||•||12|
|Clean the engine oil mesh filter assembly||•||•||–|
|Check and/or adjust valve clearance||•||•||–|
|Change timing belts (73740252A)||•||•||60|
|Change spark plugs (NGK MAR9A-J)||•||•||•||•||–|
|Clean air filter||•||•||–|
|Change air filter (DU-1006)||•||•||–|
|Check brake fluid level||•||•||•||•||12|
|Change brake fluid (Castrol DOT 4)||36|
|Check brake disc and pad wear. Change, if necessary||•||•||•||•||12|
|Check the proper tightening of brake calliper bolts and
brake disc flange screws
|Check the proper tightening of the rear brake disc and phonic wheel bolts (with removal of rear wheel shaft, if necessary)||•||•||•||•||12|
|Check front and rear wheel nuts tightening||•||•||•||•||12|
|Check frame-to-engine fasteners tightening||•||•||•||•||–|
|Check wheel hub bearings||•||•||–|
|Check the proper tightening of final drive front and rear
|Check final drive (chain, front and rear sprocket) and sliding shoe wear||•||•||•||•||12|
|Check final drive chain tension and lubrication (Motul chain paste)||•||•||•||•||12|
|Check steering bearings and lubricate, if necessary||•||•||–|
|Change front fork fluid||•||–|
|Visually check the front fork and rear shock absorber seals||•||•||•||•||12|
|Check the freedom of movement and tightening of the side and central stand (if any)||•||•||•||•||12|
|Visually check the fuel lines||•||•||•||•||12|
|Check rubbing points, clearance, freedom of movement and positioning of hoses and electric wiring in view||•||•||•||•||12|
|Check the free play of clutch lever||•||•||•||•||12|
|Lubricate the levers at the handlebar and pedal controls||•||•||•||•||12|
|Check the coolant level and check circuit for damage||•||•||•||•||12|
|Check tyre pressure and wear||•||•||•||•||12|
|Check the battery charge level||•||•||•||•||12|
|Check the operation of all electric safety devices (side stand sensor, front and rear brake switches, engine kill switch, gear/ neutral sensor)||•||•||•||•||12|
|Check lighting, turn indicators, horn and controls||•||•||•||•||12|
|[D] Reset the Service indication through the DDS 2.0||•||•||•||•||12|
|Final test and road test of the motorcycle, testing safety devices (ex. ABS and DTC), electric fans and idling||•||•||•||•||12|
|Softly clean the motorcycle||•||•||•||•||12|
|[D] Fill out that the service was performed in on-board documentation (Service Booklet)||•||•||•||•||12|
About the Ducati Monster 821
At its core, the Ducati Monster 821 is still the same bike it has always been — a middleweight naked sportbike that isn’t as aggressive as the Streetfighter range, but not as docile as for example a Triumph Bonneville.
That’s the spirit of the Ducati Monster 821. An everyday bike that has Ducati spirit, but which isn’t overbearing to ride.
The Monster 821 carries on the legacy first set by the Ducati Monster 900 back in 1993. That bike was conceptually similar — a naked sportbike with a middleweight engine that doesn’t need to be screamed at high RPM.
But the Ducati Monster 821 is a huge tech update on early Ducati Monsters, as well as an aesthetic resign. The 821 gains a four valve per cylinder engine (up from two) and liquid cooling (Ducati Monsters were air/oil-cooled before this).
The Ducati Monster 821 also made the wet clutch standard — it was making its presence felt, but no Monster after the 821 came with a dry clutch.
One of the benefits of the liquid-cooled engine in the Ducati Monster 821 is the wide service intervals. While you change the oil every 15000 km / 9000 miles, valves only need to be serviced every 30000 km / 18000 miles. This set a new standard for Ducati, bringing them in line with most manufacturers in recommended valve service intervals.
Of course, when you service the valves on a Ducati it’s more involved (it’s still a desmo engine — meaning twice as many clearances to check), and usually a shim or two needs replacing.
The valve service in Ducati motorcycles is in contrast with most Japanese sportbike engines, which typically have a) inline engines (only one cylinder head), b) have spring valve reseating mechanism (so fewer clearances to check), and c) often don’t need any adjustments done, particularly after the first service.
For those who want a little more aggression, the Monster 821 had a big brother, the Ducati Monster 1200, which got a lot more power, tech, and some more weight.
In 2018, Ducati revised the Monster 821 somewhat, with a new tank, tail section, headlight, and muffler. The intention was to make it more “classic” looking, like the original Monster 900. The engine however stayed the same, as did the basic maintenance.
In 2021, Ducati replaced the Ducati Monster 821 with a motorcycle simply known as the Ducati Monster, but which people refer to as the Ducati Monster 937.
It shares its 937 cc engine with motorcycles like the Ducati Supersport.
Reference — Ducati Monster 821 Owner’s Manual
The above info was sourced from the owner’s manual for the Ducati Monster 821. See a screenshot below for reference.
You can download it from the Ducati website here. An archive copy of the manual is also below.