2017-2020+ Kawasaki Ninja 650 Parts Compatibility List

HomeMiscellaneousMotorcycles2017-2020+ Kawasaki Ninja 650 Parts Compatibility List

Last updated on August 26th, 2020

The following is a non-exhaustive, Kawasaki Ninja 650 parts compatibility list. That is, it is a list of models which share a degree of compatibility with the new 2017+ Kawasaki Ninja 650 (up to around 2020+).

Though this model was introduced in 2017 – and was a major redesign on the previous version of the infamous Ninja 650 (up to 2016) – there are still many major and minor accessories from previous models within the Kawasaki family that will directly bolt-on. I can’t make any universal guarantees about compatibility, but it is an excellent starting point when looking for more options when it comes to replacements and upgrades.

Also, if you want to check out what parts I decided to install on my 2017 Kawasaki Ninja 650, check out my mods list. I’ve definitely put a not-insignificant amount of time and money into my bike, so I can absolutely make a few recommendations. Just about everything is compatible with Kawasaki Ninja 650s introduced up to 2020 or newer.

2020 Kawasaki Ninja 650 Parts Compatibility

2020 Kawasaki Ninja 650 KRT
The 2020+ Kawasaki Ninja 650 generation is a minor upgrade over the 2017 model.

Around October 2019, the 2020 Kawasaki Ninja 650 was announced. The 2017 generation model was well received, and popular enough for Kawasaki to keep their engineers tinkering on the model. For 2018 and 2019, the changes were merely aesthetic, but in 2020 Kawasaki made some minor but non-trivial updates.

Considering the base model was only three years old, there’s no sense in redesigning it from the ground up. But what they did do was an incremental update of creature-comforts. The main upgrades are a new LED headlight (that finally solves the cyclops look – Hallelujah!) and a TFT display dash.

Among the minor updates worth pointing out are some minor fairing changes (though I’d venture to say they’d be reverse-compatible with previous models), a new windscreen design, a comfier seat and Dunlop Sportmax Roadsport 2 tires. Besides that, it basically is the same model we’ve grown to love since 2017.

As far as parts compatibility with the 2017-2019 models goes, the age-old rule applies: If it looks like it’s the same, it probably is. Kawasaki isn’t going to re-engineer near identical components for the heck of it. Parts like the windscreen, headlight and TFT display are obviously incompatible – as are the fairings and cowls that were modified to accommodate them. But besides that, engine components, suspension, frame, etc… it should all still be a direct match for the 2017+ gen Ninja 650.

And in case you’re wondering, no, you can’t install the headlight or TFT display from the 2020 N650 on a previous model.  Or at least you can’t only do that. It would require additional fairings and other minor parts – meaning you can’t just swap one headlight for another. Now if you really, really wanted to and had a spare 2020 model, you could very likely do it with relative ease. It’s just that in most cases it simply isn’t cost effective.

The Ninja 650 is almost fully compatible with the Z650

For just about everything that isn’t self-evidently incompatible, the 2017+ Ninja 650 and Z650 share perfect part fitment and compatibility.

In this case, the best compatibility will be found with the 2017-2020+ Kawasaki Z650. For whatever reason it seems to have found a far superior reception in the aftermarket parts market thanks to its international popularity. Regardless of the reason, this is certainly a very welcome fact for N650 owners. Just about everything on here regarding Kawasaki Ninja 650 parts compatibility goes for the Z650.

The Z650 is the Naked version of the Ninja 650 so, as expected, compatibility is perfect for a majority of parts. If it looks like it fits, it probably does. To find the best prices and selection of accessories, an Ebay search for Z650 parts is the best place to start these days.

Just keep in mind that some parts are blatantly not compatible. Mostly it’s the handlebar, dash or fairing related. In other words, things inherent to the Naked design – But everything else should fit. Especially engine or electrical related.

If you know of any other models with bolt-on compatibility, or any errors or suggestions to add, please leave them in the comments below.

2017-2020+ Kawasaki Ninja 650 Parts Compatibility List

Prime Suspects to Check for Compatibility

The following models are national and international models with which there will be some degree of bolt-on compatibility between bikes, depending on the part. Keep in mind that some models aren’t really models as much as they are names that certain vendors will use out of ignorance.

  • 2018, 2019 & 2020+ Kawasaki Ninja 650 – If you’re new to the automotive world, you may not be aware that most of the time, differences in model year are simply aesthetic. You might see minor updates every 3 years, and between major redesigns 6 years or more. For the most part, the components are identical between the 2017 to 2020 (and newer) Kawasaki Ninja 650 models.
  • 2012-2016 Kawasaki Ninja 650 ABS – The 2017+ model was a major redesign. Nonetheless, many minor parts are shared with this previous version, but don’t assume compatibility. A majority of parts were changed and are not compatible. It is still worth checking for some accessories, of course.
  • 2017-2020+ Kawasaki Z650 – This is the naked version of the 2017+ Kawasaki Ninja 650. Many common parts fit from this model, and the engine is presumed to be identical. That includes the fender eliminators, rear sets, and a wide variety of other parts.
  • 2017 Kawasaki Z800 – Engine parts from this bike do not fit for the most part. However, some smaller parts and accessories will be perfectly compatible. Just make sure to check them individually.
  • 2017-2020 Kawasaki Z900 – As you might expect, engine parts from this model do not fit, for the most part. However, some smaller parts and accessories will be perfectly compatible, checked individually.
  • 2018-2020+ Kawasaki Ninja 400 – Some minor parts and accessories will fit, but major engine parts or structural components generally won’t.
  • Kawasaki ER-6N – This is the overseas naked version of the Ninja 650. Some parts may fit, although exact degree of compatibility varies.
  • Kawasaki ER-6F – This is the overseas version with fairings. Similar if not identical to the previous Kawasaki Ninja 650 ABS. Keep in mind that some sellers will keep calling the 2017 Kawasaki Ninja 650 a “2017 ER-6F”.
  • Kawasaki Ninja 650R – Ninja 650R is another name for the 2012-2016 Kawasaki Ninja 650 model in certain markets. In many cases it is simply a misnomer by the vendor, so one should sure exactly what model it is.
  • Kawasaki ER650 – Some sellers use this name, but it’s unclear if this is an official model designation or just the model number. Some online information supports that it is some type of international version of this model.

Note – ER-6n stands for Naked, whereas ER-6F stands for Fairings.

If you’re looking for aftermarket parts for your bike, it’s a good idea to check Kawasaki Ninja 650 parts compatibility with other models.

Parts with Known Compatibility

    • 8mm x 1.25mm Rear Stand Spools – Any rear spools with this thread are compatible. Feel free to disregard the motorcycle model it is advertised for.
    • M20x2.5mm Oil Filler Caps – This is not the most typical thread size, so double-check the listing to make sure it fits.
    • It is compatible with 2017+ Kawasaki Z650 Radiator Cover, as expected.
    • Keys from Kawasaki 1400, ZX-10r, ZX-6r, ZZR1400, and Ninja ZX-14 seems to be compatible. However this bike is a bit finicky with key compatibility. You’ll have to double-check that the key is the correct length. Keep in mind that sellers frequently ship the wrong part.
    • The connector for the license plate light is the “”2pin Sumitomo motorcycle connector 6030-2981 6040-2111″. It’s a 2 way connector with .250 pins”.
    • The Turn Signal Flasher Relay has an odd connector, but Motodynamic sells a compatible plug: “Motodynamic LED Flasher Relay with OEM Connector – LEDFR-01”. I used the adapter and instead installed this adjustable LED flasher.
    • Brake/Clutch Lever Compatibility – As far as I have seen, the Ninja 650 is fully compatible with the following models.
      • 2015-2017 Kawasaki Vulcan/Vulcan S 650
      • 2017+ Kawasaki Z900
      • 2017-2020+ Kawasaki Z650
      • 2017 Kawasaki Ninja 650R/ER-6F
      • 2015-2017 Kawasaki Versys 1000
      • 2015-2020+ Kawasaki Versys 650
    • Handlebar / Clip-ons – While I can’t confirm 100% compatibility, there’s a very high chance of bolt-on compatibility between the previous gen’s handlebar and the 2017+ gen. It certainly is highly likely and worth a try. If anybody has any personal, practical experience, please let me know.

Non-Compatible Parts with the 2017 Kawasaki Ninja 650

The following parts have been tested to not be bolt-on replacements. They fail to have Kawasaki Ninja 650 parts compatibility. Either they are not compatible or need a not-insubstantial amount of modification to install. Avoid them when searching for parts for this particular bike.

  • Not compatible with the Brake/Clutch levers for the Kawasaki ER-6N/F 2009-2015.
  • Not compatible with the Engine Air Filter for the 2012-2016 Kawasaki Ninja 650. The K&N KA-6512 filter did not fit.
  • 2017 Kawasaki Z900 Front Axle Sliders do not fit.

Tip – Reverse-Search Part Number Compatibility

If you have a manufacturer part number for the part in question, try reverse searching it. That is, visit an OEM Parts Vendor and “Search by Part Number“. Some sites will allow you to see ‘where this part is used’, giving you a list of all the different models using exactly that same part with guaranteed compatibility.

Just keep in mind the list may not be exhaustive. There might be parts that aren’t supposed to be compatible… but in practice are. In any case, it’s a great starting point.

Other fitment and compatibility issues

Sprocket and Gearing Changes

To avoid issues on the 2017+ Kawasaki Ninja 650, at most you should probably limit sprocket changes to one or two teeth at the rear.
To avoid issues on the 2017-2020+ Kawasaki Ninja 650, at most you should probably limit sprocket changes to one or two teeth at the rear.

The 2017-2020+ Kawasaki Ninja 650 has a stock configuration of 15 teeth on the OEM front sprocket and 46 teeth on the OEM rear sprocket. By the way, the stock drive chain is #520 if you’re curious. A pretty typical sport bike customization is to modify those sprocket teeth values for either lower RPM at highway speeds, or more nerve when taking off.

Regrettably, the 2017-2020+ N650 doesn’t seem to take kindly to gearing changes. Even adding a single tooth to the front leads to chain rubbing on the housing. To make matters worse, gearing changes above  approximately ≥7% are likely to produce a Check Engine Light. That would be roughly equivalent to 16T/46T – check here for a nifty sprocket ratio calculator if you want to play with the numbers.

On other bikes that might be a minor inconvenience – though reason enough to not do the mod on its own – but on the Ninja 650 it disables the Gear Position Indicator on the dash.  To me that’s a deal breaker considering the modest gains to be had.

All in all, save for special circumstances, it is probably safest to leave the stock front sprocket and at most try between 44T and 49T in the rear. A cheap replacement to test would be the JTR478 from JT Sprockets.

Note – The six sprocket nuts have a M10x1.25mm thread, and require 44 ft·lb/59 N·m of torque.

Replacement Ignition Key Blanks

The Ninja 650 is super picky about keys, so you'll have to either buy OEM or get a key that you've confirmed works with this specific bike.
The Ninja 650 is super picky about keys, so you’ll have to either buy OEM or get a key that you’ve confirmed works with this specific bike.

Out of all the vehicles I’ve ever had to get replacement keys for, the Ninja 650 is probably the most complicated. That despite the key not being hard to cut or having a transponder. Partly because the Ninja 650 requires a “left” blade and an extra-long shaft of about 2 inches. Anything shorter than that might hit the plastic ring around the ignition. To boot, the bike is extremely sensitive to any variations in the key profile, with certain keys that look identical not rotating correctly. The following keys are the ones I’ve tested to work.

  • Kawasaki OEM Key: PN#27008-0596 – To avoid the hassle of non-compatible keys, for better or worse it’s probably best to go with OEM. This is the part number that will work for the Ninja 650. If you want to see if Ebay has it for less, check here.
  • Aftermarket Keys – This is the only cheap aftermarket key I’ve found that works – And I’ve probably ordered over half a dozen by now. At 3 for around 5 bucks, it’s likely the best deal. And much cheaper than OEM. The quality isn’t as good as OEM, but they make excellent backup keys. Just make sure it will fit inside the ignition before getting it cut, because I’ve found some batches that inexplicably don’t work. Because of that, in all honesty, buying the OEM key is much less of a headache.

If you lose your keys before making a copy, the cost of replacing the ignition lock, gas cap and seat lock is in the hundreds. You should definitely get a replacement key cut before you need it. Even better, hide one inside the bike’s bodywork in case you ever lose your key while at your destination.

If you do end up ordering a key blank, any local locksmith should cut it for you for about 5 bucks in a few minutes. Then you can get a nice keychain for it like mine to keep it from scratching the bike.

Brake Banjo Bolts

For reference, the 2017+ Kawasaki Ninja 650 uses M10x1.25mm banjo bolts. That is the bolt that holds the brake line banjos, referring to the thread in the brake calipers and cylinders. If you want a cool upgrade for them, here are some nice looking Titanium Brake Banjo Bolts. Plus they have safety wire holes to wire the bolts if you’re looking to track your Ninja.

The bike uses a total of four single-line banjos (2 in the back, 2 in the front) and one double-line banjo (one front caliper). Also, if you ever disturb or replace the banjos, make sure to replace the seals. The crush washers are size M10x14.5mm. The DPWM10.145-10 are the best priced replacement I’ve found for the OEM aluminum washers.

What about ABS versus Non-ABS versions?

If you need help differentiating the ABS and Non-ABS Ninja 650, look for the wheel speed disc and sensor.
If you need help differentiating the ABS and Non-ABS Ninja 650, look for the wheel speed disc and sensor.

A frequent question is whether parts are compatible between the ABS and Non-ABS versions of a given bike – 99% of the time they are. Obvious brake-specific components aside, of course. In other words, you don’t have to ask sellers “if part X is for ABS or Non-ABS motorcycles”. Just about any part on this 2017 Kawasaki Ninja 650 parts compatibility list will fit regardless of the bike having Anti-Lock Brakes or not. That applies to both the Ninja 650 and the Z650… not to mention just about any other popular motorcycle these days.

Certain exceptions are the brake lines, the brake rotor, some wiring harnesses, etc. However those are parts that you are either unlikely to change or won’t surprise you.

On a similar vein, if you’re unsure if your bike has ABS, look for the toothed disc and wheel speed sensor. There’s one for each wheel. If you can’t see it on your motorcycle, then it doesn’t have ABS.

And by the way, no, you can’t install ABS on a non-ABS bike. That’s the short answer, anyway. It’s not impossible, but in most cases it requires so much effort that you’re really better off selling your bike and getting one with ABS instead.


All in all, spending a little extra time researching the parts compatibility for your bike is often worthwhile. Half the time you’ll find better prices, and the other half you’ll find more options than those initially available. Hopefully this Kawasaki Ninja 650 parts compatibility list helps you with that.

Have you encountered any compatibility issues with your N650? Do you have any suggestions or errors? Feel free to contact me or leave a comment below.

Anyway, I hope you’ve found this useful. If you found this interesting, checkout the homepage to see what projects I’ve been up to lately. Here are a few you might find interesting:

26 Replies to “2017-2020+ Kawasaki Ninja 650 Parts Compatibility List”

  1. What ignition switch gas cap set is compatible for a 2020 kawasaki ex650
    It is such a struggle trying to find a compatible switch for a 2020

    1. 2017 on a 2018, absolutely. As far as 2016 (Part #27005-0552) and 2018 (Part #27005-0624), technically they’re not the same part. The 2016 Ignition is used on Kawasakis from 2012-2016 & the 2017 Ignition is used on models from 2017-2019. Nonetheless, there’s a fair chance it could fit (and if it doesn’t, it’s probably off by little). I’d feel confident ordering the part used just to give it a try as long as it could be returned.

  2. I just got a 2019 Ninja 650 ABS which I love. I considered buying a 2021 model but could not get myself to get over the horrible color selection Kawasaki did even though the LED lights were a big reason to consider the newer model, even with the price difference.

    Is there a way to upgrade the lights of a 2019 model to the LED lights of the newer? I know there are many (many) LED lightbulbs which by itself is very confusing, but I’m specifically asking about the entire headlight assembly so both sides are working for normal and high beams.

    1. Congrats on the bike. Enjoy it. Regarding the headlight, regrettably no. They changed the front fairing and the headlight assembly, so it wouldn’t be just a matter of swapping the housing. It might be possible changing a bunch of parts, but at that point it’s hard to justify the price. Personally I’d just go with upgraded halogens for cheap and call it a day. It won’t be as nice, but trust me, you’ll have saved yourself a handful of headaches – And I say that out of experience.

  3. I have a 2020 Ninja 650 KRT ABS. I’m looking into getting the ECU/ECM flashed but in order to do so there is no one local to bring in the bike. To mail it in I require another ECU/ECM so that I can ship mine out (daily rider and cannot afford down time so purchasing a used in eBay would fit the bill). Can you tell me if the same holds true, that a 2017-2019 ECU/ECM will work while I send mine off to be flashed? Part numbers do not match but that’s not really an indicator because manufacturers change those numbers even between models. Any help?

    1. Nevermind. It is the same part number, just not the same reference number. Answered my own question…lol.

  4. So, I’ve started on a new project. I have a 2014 ex650 and I’ve kind of started to notice a lot of similarities between that and the er6n.
    My question to you is compatibility between the models fairings. Would a 2011 er6n radiator cover fit a 2014 ex650 without much modification?

    1. That falls well into the realm of things no one’s going to be able to tell you for sure. The best thing you can do is order it off eBay from a seller that accepts returns and find out for yourself. Stay safe.

    1. It’s not the same exact part, for what that’s worth. The Ninja 650 shock has confirmed perfectly compatibility with the Z650, but I don’t have any firsthand knowledge on whether the difference with the Z900 is dimensional or just a stiffer spring for the heavier bike.

  5. Hi. Do you have any update about the handlebars? I would like to install the 2017 handlebars in a 2014.

    1. Hey! While I haven’t checked empirically, per the diagrams it seems like there’s a very good chance that the OEM handlebar assembly would bolt on. As far as aftermarket handlebars, I don’t think there’s any guarantees.

  6. Is the LED headlight of the zx6r compatible with the ninja 650 2017-2019 or another model led headlight that is compatible with ninja 650 2017-2019?

    1. Regrettably, as far as I am aware, no other Kawasaki model has the same headlight as the 2017+ Kawasaki Ninja 650. There doesn’t seem to be a non-OEM aftermarket headlight assembly either – at least not for the moment. To be honest, I’m a bit let down an affordable replacement unit hasn’t popped up yet. It would be pretty interesting for HID Projector Retrofit projects.

      1. There is some kind of non-OEM version on the market. But in my opinion not the most great option that will fit the bike well.

    1. There’s a good change it might fit, with both rims being 17″, but they are different part numbers so there’s a risk there might be some incompatibility. If you ever try one, let me know if it fits.

  7. hello as you think a back wheel for 650 2017, and computer commander approaches from the previous models?

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