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Fairing 6-1/2″ Speaker Adapters

4.88 out of 5 based on 24 customer ratings
(24 customer reviews)


NOTE: (07/24/19) Due to current demand we are estimating a 15-18 day lead time on this item. We apologize for the inconvenience.

Fits 2011-2019 Vaquero 1700 (all models)
Fits 2009-2019 Voyager 1700 (all models)

See “Additional Information” for speaker compatibility


Available on backorder

SKU: KVV65A-12UB Category:

Product Description

Don’t settle for the 5-1/4″ speakers Kawasaki mounted on your 1700! Get bigger sound from your Voyager or Vaquero using these adapters! You can now fit 6 1/2″ speakers on the fairing of your big V-twin Kawasaki! These Patent Pending adapters mount using OEM hardware and require no modifications to the bike. The semi-universal design allows the use of most 4-bolt, 5-bolt or 6-bolt speaker systems. Installation takes about 20-30 minutes, requires no drilling or cutting, does not require removal of the fairing and they do not interfere with the glove box doors! This kit includes both left and right adapters, installation instructions and additional mounting hardware.

Note: Expect a minimum of 5-7d day lead time (unless specified in description) before they will be shipped. This can increase during peak ordering times

See Description for Compatible Motorcycle Models
See Additional info for Speaker compatibility


Additional Information

Weight 1 lbs
Dimensions 8 x 5 x 5 in
Speaker Compatibility

We have not tested all of these but customer feedback states the following speakers will fit without modification (uos). Not all listed are marine grade. Most 6.5″ speakers work better if you remove the OEM sound cone behind the factory speakers. It is removalbe once you remove the factory 5.25″ speakers (basically, don’t put it back into the fairing). We do not recommend drilling your own mounting holes!


Type R


ECX165.5 (trimming of adapter req’d)
HCX165.5 (trimming of adapter req’d)

KFC-1653MRG (6-bolt)

Polk Audio
MM651 (NOT MM651UM or MM651MM)

612m (5-bolt)
Kappa 62.11

Rockford Fosgate


JL Audio

Will NOT fit the following:
Polk Audio MM651s (while “s” is for slim, the mounting bolt pattern is different)

The following will fit but require modification to the adapters and/or fairing.
** These mods are not reversible **
** We do not recommend modifying the adapters **
Polk Audio MM651UM
Polk Audio MM651MM
Pok Audio MM6501UM
Kenwood KFC-650

We will continue to update models as we discover their compatibility.

24 reviews for Fairing 6-1/2″ Speaker Adapters

  1. 5 out of 5

    (verified owner):

    Adapters arrived quickly and product was as described. Easy to install and fit perfectly on the bike. Have received many positive comments from others. Great quality product.

  2. 5 out of 5

    (verified owner):

    Great product! And most of all great customer service thanks for making these products!

  3. 5 out of 5

    (verified owner):

    Awesome product. Very simple to install took about 30 minutes. Very impressed with the fit and looks. I installed Rockford Fostgate 6.5 along with an alpine amp. This Vaquero now rocks !!!!

  4. 5 out of 5

    (verified owner):

    Must have if upgrading to 6.5” speakers. Looks amazing, just like a factory install.

  5. 5 out of 5

    (verified owner):

    I have set of the original adapters and also a set of the newest revision. The new ones are much more secure, built very solidly and the fitment was bank on with no fine tuning required. Great product.

  6. 5 out of 5


    I have purchased these speaker adapters. They are awesome. Fit great. I installed kicker 6.5 speakers in them. Owner is quick to get you your order. Thanks dude.

  7. 5 out of 5


    Speakers adapters and all the stuff i bought for 2017 Vaquero work out well.

  8. 5 out of 5

    (verified owner):

    The adapters work really well with the Polk Audio MM652 MM1 speakers. They also look great on the bike! Great job engineering these. Well pleased.

  9. 5 out of 5

    (verified owner):

    Engineeredadapters are Great…perfect and precise fit for the Polkaudio 6.5 I went with. The instructions were very clear and understandable. Good solid material construction. I’ll do the bags next cause the step by step instructions will get me there. WELL WORTH the $

  10. 5 out of 5

    (verified owner):

    Exact fit, great and detailed instructions. Will keep buying, keep up the good work. Making this Vulcans unique from the rest of them expensive non worth bikes…

  11. 2 out of 5

    (verified owner):

    Purchased a set last year for my bike and they are 2 piece, also you have to be careful when tightening the speakers screws, I had 1 stripped out easily. For the money it should have been built better and maybe 1 piece.

  12. 5 out of 5

    (verified owner):

    Love these! Perfect fit, looks factory made. Super easy install! 400W Boss audio 6.5” fit perfect! Thinking of getting the saddle bag adapters soon!

  13. 5 out of 5


    You cant beat randys adaptors, dont waste time and money trying to make 6.5s work in your voyager/vaquero. These are too simple and at a great price as well as everything else. I suggest purchasing everything randy offers for the bike for a clean, simple, problem free install!

  14. 5 out of 5

    (verified owner):

    You’ll see this same review on multiple products because I’ve redone my whole stereo system with Engineered adapters help! Amp mounting plate, single din radio adapter, wiring harness for aftermarket stereo, 6.5 inch speaker adapters and although I didn’t buy it from him the pac-swi r/c install with wiring help courtesy of Randy! Seriously made doing all of this almost idiot proof and my bike sounds so much better with my Polk speakers, fosgate amp and Kenwood Head unit. Thanks for all the help and great products! Well worth the $$$$

  15. 5 out of 5

    (verified owner):

    Easy install, perfect fit, clear instructions.
    Awesome sound from my new Polk MM1 speakers!
    Great job!

  16. 5 out of 5


    I have these on my 2015 Voyager and the fit was perfect. Quality is Awesome. The adapters bolt right on. Get a lot of comments on them

  17. 5 out of 5

    (verified owner):

    the adapters are great! just for info.,kenwood 6’5 inch speakers model kfc-650 concert series,do not fit right,must drill different not align flush with width of speakers with grills attached is 6.5 inches,adapters are wider than buy sells these speakers,,although they sound great,you will have to spend some time modifying.

  18. 5 out of 5

    (verified owner):

    Just finished installing my new 6.5 speakers. These adaptors look great, were a snap to install and the big sound is great. Nice job!

  19. 5 out of 5

    (verified owner):

    Just wanted to let vaquero riders know that I installed 6.75 Rockford fosgate power speakers on the adapters and sounds nice

  20. 5 out of 5

    (verified owner):

    Perfect fit, Installed Polk Audio DB652s and sounds great!

  21. 5 out of 5


    I bought the frt speaker adapter and the deck adapter and wiring harness. And my installer said his products is better than the other companies and for now on is the company he’s using.

  22. 5 out of 5

    (verified owner):

    I installed the amp brackets offered and the wiring harness suggested perfect fit and no harm to the factory wiring ran Rockford pbr300x2 freq 120 gain 5;ordered 2 sets of adapters for my voyager and my brother in laws voyager kicker marine speakers very loud very clear Mr Randy is excellent to deal with and went above and beyond to help me thank you for the help am looking forward to the possibility of rear pods oem is rediciously high and same ole cheap speakers! Remember some times you have to get lost to find yourself. Thanks again

  23. 5 out of 5

    (verified owner):

    Bought the speaker adapters, head unit face plate, and the wiring harness. couldn’t be happier with how it all turned out. looks good and sounds awesome!

  24. 5 out of 5

    (verified owner):

    A breeze to install, had to drill 3 additional holes for my JBL marine grade speakers, worked out perfectly

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