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Kicker 41KSC674

6-3/4" 2-way speakers

Item #: 20641KS674

In Stock

11 Reviews | 1 question - 3 answers

Free Installation gear for most cars

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Does it fit my car?

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Find what fits your car



The 41KSC674 features a slim design, making it a perfect fit in more cars.

Slim fit

These KS Series speakers are some of the most installation-friendly Kicker speakers yet. These low-profile speakers feature a reduced mounting depth, making them a match for almost any car. And the refined, black grilles included with the package allow you to do a custom installation that'll knock people out.

Pump up the volume

While the low profile is an elegant asset, you'll find the real beauty of Kicker's KS Series speakers inside. The 41KSC6747's highly sensitive design conjures hefty volume even from low-powered factory radios. So, you'll be able to enjoy every bit of their natural sound, starting with a full midbass and midrange experience from the 6-3/4" polypropylene woofer and its powerful magnet. You'll also hear subtle vocal and instrumental details from the silk dome tweeter, giving your music a dimension that factory speakers just can't manage.


  • 2-way car speakers (pair)
  • 6-3/4" polypropylene woofer cone with rubber surround
  • 3/4" silk dome tweeter
  • power range: 2-100 watts RMS (200 watts peak power)
  • frequency range: 40-21,000 Hz
  • sensitivity: 90 dB
  • top-mount depth: 1-7/8"
  • impedance: 4 ohms
  • grilles included
  • warranty: 1 year
  • Our 60-day money-back guarantee

Why replace your factory speakers?

The speakers that originally came in your car were made from inexpensive materials, designed to create acceptable sound at the lowest possible cost to the manufacturer. If you love music, you deserve better. Name-brand aftermarket speakers deliver fuller, richer sound with considerably more detail and nuance, and they're capable of playing louder and cleaner than factory speakers. Connect new speakers to your factory radio and you'll get the best possible sound from your dealer-equipped system. Pair them up with a new car stereo for a level of enjoyment that can rival a high-fidelity home audio experience.

Hands-on research

What's in the box?

Download owner's manual

  • Two 2-way speakers
  • 2 Grilles
  • 2 Grille rings
  • Two 11" Lengths of speaker wire (tinned wire on one end and female quick slides on the other)
  • 4 Red plastic butt connectors
  • Eight 1-1/8" Self-tapping screws
  • 8 Speed clips
  • 2 Strips of grille putty
  • Owner's manual (English/ Spanish/ German/ French)

Product Research


Polypropylene Woofer Cones: The Kicker KS-series speakers feature durable polypropylene woofer cones for power and control. Polypropylene is also resistant to moisture and the temperature extremes found in automotive applications.

Dome Tweeters: The 3/4" silk dome tweeters provide a smooth high frequency response. Silk is lightweight and great for high frequency extension and efficiency. It is also designed for durability in the extreme automotive environment. The tweeters have strong neodymium magnets for higher power handling.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Kicker 41KSC674 Reviews

Average Customer Review:

11 reviews
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Written By Brad, Arizona on Monday, January 19, 2015

Crutchfield Customer Review (What's this?)

Sound awesome.

Read Me I'll Help You Decide I Tested Multiple Brands!

Written By Charlie, New York on Monday, January 19, 2015

Crutchfield Customer Review (What's this?)

First off here is what i ordered and compared, polk db651, polkdxi651 ,kicker cs674, alpine spr-60, mb quart onx 6.5. the only speaker that was even close to these in overall sound was the polkdb. these kickers are insane. listen dont let their puny size fool you. look at those alpines they are beasts and were trash. best part is these kickers sound amazing amplified or not they have everything you need, bass bass and mose bass, volume nice and loud louder than my 95db infinity kappas, and smooth clear highs. theres not one bad thing to say at all. i am extremely picky. these blew away everything. they are clean and clear as home audio and provide so much bass my doors rattle and they are sound deadened on both side this inclused the door panel. im telling you these are perfect and i wasnt a kicker fan. these are worth double the cost. everything is even and blended, the high and volume level keep up with the bass which is what makes them so great. so honestly get these you will not regret it I Promise.

Pros: everything!

Cons: None!

Blazer update

Written By DCC, Waukee, IA on Monday, January 05, 2015

Crutchfield Customer Review (What's this?)

I didn't realize how bad the factory speakers had become in my 1999 Chevy Blazer. These speakers sound great! and were a snap to install.

Pros: Easy install, great sound

Cons: none

Kenwood speakers

Written By Chris, Alaska on Sunday, January 04, 2015

Great speakers, easily installed to replace my stock speakers! Great quality sound! Paired them with the Kenwood subwoofer and amp package, made amazing listening experience!

Pros: Easy install, on time shipping, great quality sound

Cons: Had to make adjustments for the screws it came with

Car speakers

Written By wayneg, Sioux Falls, SD on Sunday, December 21, 2014

Crutchfield Customer Review (What's this?)

I ordered a pair of car speakers that were supposed to include instructions on how to install. instructions were not included ......disappointed

Crutchfield response on Tuesday, December 23, 2014 We forwarded this review to our Technical Support team for follow-up. Lifetime tech support comes with every Crutchfield purchase.

kicker speakers

Written By Anonymous, Upland, CA on Sunday, November 30, 2014

Crutchfield Customer Review (What's this?)

They are much better than factory and seem decently made.

Pros: Dont look like crap. Sound better than factory set up.

Cons: None that I can see

Sweet !!

Written By Smoky, new york on Sunday, October 19, 2014

Very nice, Cristal clear, Mids and Hi's . Deep bass ,that rolls off nice . They take What ever power ,I feel like giving them .

Easy Peasy install - silverado

Written By Jimmy's, Orange County California on Thursday, October 02, 2014

Crutchfield Customer Review (What's this?)

My 2002 chevy silverado works hard and for some time the factory speakers were toast.

Called the specialist at Crutchfield and told him what I wanted - clean sound and simple install. He recommended kickers and it sounds awesome. For those of you out there with a silverado - it is super easy.

I would have hated to pay someone to do this - I went slow and it took me like just unber an hour.

Pros: Clean sound simple install and great directions - thanks crutchfield . Get the connectors - they are awesome and solid

Cons: Should have done this three years ago

Great Sound

Written By ChrisH, San Marcos, Tx on Friday, September 12, 2014

Crutchfield Customer Review (What's this?)

These speakers are loud and clean. I am only running these speakers off a Kenwood stereo, so I only pushing 20 RMS. The speakers are rated to perform at 50 RMS. I am curious to see the clarity of these speakers on a 4 channel amp.

Pros: Easy Install, Have yet to blow them, durable.

Cons: none so far.

Great sound and durable

Written By Chris B, San Antonio, TX on Tuesday, August 19, 2014

Crutchfield Customer Review (What's this?)

Great sound and very well made. The speakers offer a reasonable amount of base for a speaker of their size. They are perfect for doors and offer a high level of weather resistance. Everyone has seen paper door speakers rot out after heat and moisture have their way.

Pros: Good price. Great durability. Quality construction.

Kicker KSC67 for 2008 GMC Sierra crew cab

Written By Ric, Seattle, WA on Monday, June 16, 2014

Crutchfield Customer Review (What's this?)

First Crutchfield experience - Excellent support and the Kicker brand speakers are great. Far exceeded the local Car Toys who told me to go away and just buy a stock speaker. Right side door speakers quite working in my 2008 GMC crew cab. Installed four Kicker KSC67 and left the stock tweeters connected in the pillars for now. Sounds great. Bought the Bojo trim tool kit also which made install a snap. Found a You-Tube that helped along with the instructions CF gives you. 15 mins per door start to finish once you figure out how to remove the panels, if you pre-assemble the speakers to the adapters.

Pros: Support - Quality Products.

Cons: The ETC baffels are not needed - complicate the install - don't clear the window travel. CF refunded the $18 price of the baffels whenI i told them that about the recommended baffels.

Product reviews from the Crutchfield Labs

Kicker's venerable KS series of car speakers gets a couple of key updates for 2014. First, they now employ a silk-dome tweeter for smoother highs, and second, a shallower basket so they'll fit into...

What are the Labs?

Get everything you’ll need to enjoy your new Kicker 41KSC674

Dynamat 10415 Xtreme Speaker Kit

Dynamat 10415 Xtreme Speaker Kit

Two 10-in. x 10-in. Sheets

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Dynamat SuperLite Tri-Pak

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Triple package — 3 sheets, 12 square feet (Model #10612)

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Dynamat 10435 Xtreme Door Kit

Dynamat 10435 Xtreme Door Kit

With four 12" x 36" sheets — covers two doors

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Bojo Trim Panel Tools

Bojo Trim Panel Tools

Set of 3 pry tools — helps remove interior and exterior trim and door panels

Item #: 126CR3NGL


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Pro.Fit Wire Worm

Pro.Fit Wire Worm

Installation tool helps route wiring through tight spaces

Item #: 042DM4533


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S&G Wire Cutter/Stripper Tool

S&G Wire Cutter/Stripper Tool

Cuts and strips 12- to 22-gauge wire

Item #: 18119100


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Metra Crimp Tool and Connectors

Metra Crimp Tool and Connectors

Package contains crimp tool and over 150 pieces

Item #: 120CRIMPKT


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Bojo Trim Panel Tools

Bojo Trim Panel Tools

Set of 6 pry tools — helps remove interior and exterior trim and door panels

Item #: 126CR6NGL


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Bojo Trim Panel Tools

Bojo Trim Panel Tools

Set of 6 pry tools — helps remove interior and exterior trim and door panels

Item #: 126CR6LNGL


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Pro.Fit Hook Tool Set

Pro.Fit Hook Tool Set

Installation tools — pair

Item #: 042DM3022


Skewdriver Pro SPK4042

Skewdriver Pro SPK4042

Ratcheting straight and offset screwdriver set with 40 bits (Skewdriver Pro with ratchet handle, pictured)

Item #: 180SPK4042


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Spec Tools SQR-200a Squeeze Wrench

Spec Tools SQR-200a Squeeze Wrench

Narrow space ratchet kit with 18 sockets

Item #: 180SQR200A


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S&G Tool Aid 87615

S&G Tool Aid 87615

Window and Door Clip Removal Tool

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S&G Tool Aid 87650

S&G Tool Aid 87650

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Auto-ranging digital multimeter

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Install Bay IB35400

Install Bay IB35400

Premium door panel and trim tool

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T-Spec 16-gauge Speaker Wire

T-Spec 16-gauge Speaker Wire

Black/white jacket — priced per foot

Item #: 120SW16WB1


T-Spec 12-gauge Speaker Wire

T-Spec 12-gauge Speaker Wire

Black/white jacket — priced per foot

Item #: 120SW12WB1


Stinger PRO Series Speaker Wire

Stinger PRO Series Speaker Wire

Priced per foot (16 Gauge)

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Metra Female Quick Slides

Metra Female Quick Slides

An assortment of female quick slide connectors for connecting to speaker terminals

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XTC 6-3/4

XTC 6-3/4" Speaker Baffles

Protect your speakers (4-1/2" depth)

Item #: 237XT60


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Boom Mat 6-3/4

Boom Mat 6-3/4" Speaker Baffles

Protect your speakers
Regular and slim-line sizes (Regular: 4-1/4" depth)

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Posi-Products™ Car Speaker Connectors

Posi-Products™ Car Speaker Connectors

8 connectors for installing car speakers

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DEI Heat Shrink Tubing

DEI Heat Shrink Tubing

Black 4-foot length (Assortment)

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Questions & Answers Ask the community. Share your knowledge.

1 question already asked

There is a basic in line capacitor for the tweeter. I am not sure of the value, but I would guess its around 5khz. It is "jumped" off the woofer input terminals, meaning you dont have to do anything special to hook it up. The woofer has no crossover. It will play whatever signal you send it. Hope this helps. [ BRANDON J  Jan 27, 2015 ]
No [ Brian  Jan 27, 2015 ]
Yes, but they aren't as good as buying a separate crossover and mounting the sub and tweeters in different locations. [ austin  Jan 27, 2015 ]