C7 Tech/Performance Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Headlight Bulb Replacement questions

Thread Tools
 
Search this Thread
 
Old Jul 27, 2023 | 11:22 AM
  #1  
Gatorboy165's Avatar
Gatorboy165
Thread Starter
Advanced
 
Joined: Jan 2021
Posts: 95
Likes: 53
From: North Andover, MA
Default Headlight Bulb Replacement questions

Hello All,

Looking for some guidance with regards to headlight bulb replacement on my 2014 Z51. Passenger side bulb is out.

I have a great body guy that will take care of removing the front fascia and installing the new bulb. I'm going to replace both bulbs while it's apart.

Is there any advantage in replacing with the GM13587843 that cost ~ $120 - $150 each, versus using an Osram or Philips D3S equivalent? As far as I am aware, GM sources it's bulbs from Osram primarily. The Osram or Philips bulbs cost around $70 each.

Also, any need to replace the ballasts while in there??

Appreciate any and all recommendations,

Thanks!
Reply
Old Jul 27, 2023 | 11:24 AM
  #2  
CPB's Avatar
CPB
Burning Brakes
All Eyes On Me
Loved
Community Favorite
Top Answer: 1
 
Joined: Jan 2019
Posts: 954
Likes: 377
From: Louisiana
Default

https://bulbfacts.com/hid-oe/chart/
Reply
Old Jul 27, 2023 | 11:45 AM
  #3  
Bill Dearborn's Avatar
Bill Dearborn
Tech Contributor
25 Year Member
Liked
Top Answer: 1
Top Answer: 3
 
Joined: Oct 1999
Posts: 41,058
Likes: 9,820
From: Charlotte, NC (formerly Endicott, NY)
Default

Just do the rest of us a favor and choose a bulb that has the same color temperature as the stock bulb. Too many people are going for the 6K blue look that blinds oncoming drivers and doesn't light the road as well for the person driving the car.

Bill
Reply
Old Jul 27, 2023 | 03:43 PM
  #4  
Gatorboy165's Avatar
Gatorboy165
Thread Starter
Advanced
 
Joined: Jan 2021
Posts: 95
Likes: 53
From: North Andover, MA
Default

Originally Posted by Bill Dearborn
Just do the rest of us a favor and choose a bulb that has the same color temperature as the stock bulb. Too many people are going for the 6K blue look that blinds oncoming drivers and doesn't light the road as well for the person driving the car.

Bill
Thanks CPB!

Bill D.,

Always enjoy reading your commentary. I fully agree with your comments on the Ultra Bright Blue lights. I've been very happy with the OEM bulbs. Gonna go with the Osram OEM bulb.

Thx
Reply
Old Jul 27, 2023 | 05:54 PM
  #5  
ersatz928's Avatar
ersatz928
Melting Slicks
25 Year Member
Liked
Top Answer: 1
Top Answer: 5
 
Joined: Mar 2001
Posts: 2,671
Likes: 850
From: New Jersey
Default

A somewhat brighter HID bulb, from a reputable manufacturer, is the Osram "Night Breaker Laser Xenarc". These bulbs have pretty much stock color (4400K color temperature), which is optimum for illumination (rather than the bluer colors). They will realistically give you 25% to 50% more light output (lumens) than the factory bulb. These are plug-and-play replacements, once you get the headlight assembly off the car.

Buy from a reputable vendor, as there are lots of fake clones of these bulbs, I recommend HID Concepts.
The Corvette uses a "D3S" type of bulb. The Osram part number is 66340XNN (each bulb).
These bulbs are about $180 a pair.

As all things, there are trade-offs, these brighter bulbs have a somewhat shorter lifetime than standard bulbs.

You do not need to replace the ballasts.
Reply
Old Jul 27, 2023 | 09:22 PM
  #6  
aklim's Avatar
aklim
Team Owner
Active Streak: 60 Days
Community Builder
Liked
Loved
 
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
Default

Originally Posted by Gatorboy165
Hello All,

Looking for some guidance with regards to headlight bulb replacement on my 2014 Z51. Passenger side bulb is out.

I have a great body guy that will take care of removing the front fascia and installing the new bulb. I'm going to replace both bulbs while it's apart.

Is there any advantage in replacing with the GM13587843 that cost ~ $120 - $150 each, versus using an Osram or Philips D3S equivalent? As far as I am aware, GM sources it's bulbs from Osram primarily. The Osram or Philips bulbs cost around $70 each.

Also, any need to replace the ballasts while in there??

Appreciate any and all recommendations,

Thanks!
My personal observation for the last 20 plus years of MB is this. You can buy the Osram Sylvania bulbs at a fraction of the price of the one from MB. That said, for whatever reason, the ones from the dealer seem to last longer. Considering that they are a PITA to get to, I don't know if skimping on the bulb is the best way to go.
Reply
Old Jul 27, 2023 | 09:24 PM
  #7  
aklim's Avatar
aklim
Team Owner
Active Streak: 60 Days
Community Builder
Liked
Loved
 
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
Default

Originally Posted by Bill Dearborn
Just do the rest of us a favor and choose a bulb that has the same color temperature as the stock bulb. Too many people are going for the 6K blue look that blinds oncoming drivers and doesn't light the road as well for the person driving the car.

Bill
'Why do you say that? I switched to 6000K bulbs for a couple trucks and it seems to do a better job for me in dark places when I have to drive in the back roads.
Reply
Old Jul 28, 2023 | 03:24 PM
  #8  
CPB's Avatar
CPB
Burning Brakes
All Eyes On Me
Loved
Community Favorite
Top Answer: 1
 
Joined: Jan 2019
Posts: 954
Likes: 377
From: Louisiana
Default

Originally Posted by aklim
'Why do you say that? I switched to 6000K bulbs for a couple trucks and it seems to do a better job for me in dark places when I have to drive in the back roads.
I think he's incorrectly attributing poorly aimed headlights and glare from conversions with 6k bulbs. Since for the most part 6k bulbs have lower output compared to things offered in the 4.7k - 5.7k range.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Jul 28, 2023 | 03:35 PM
  #9  
ersatz928's Avatar
ersatz928
Melting Slicks
25 Year Member
Liked
Top Answer: 1
Top Answer: 5
 
Joined: Mar 2001
Posts: 2,671
Likes: 850
From: New Jersey
Default

The eye is less sensitive to blue light, effectively lowering the useful lumens of the blue bulbs.
Reply
Old Jul 28, 2023 | 03:38 PM
  #10  
aklim's Avatar
aklim
Team Owner
Active Streak: 60 Days
Community Builder
Liked
Loved
 
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
Default

Originally Posted by CPB
I think he's incorrectly attributing poorly aimed headlights and glare from conversions with 6k bulbs. Since for the most part 6k bulbs have lower output compared to things offered in the 4.7k - 5.7k range.
Fair point. I have been dazzles by incandescent lights that were aimed at who knows what. One up and one down. Not sure what they are looking for but both bases are covered.
Reply
Old Jul 28, 2023 | 03:41 PM
  #11  
aklim's Avatar
aklim
Team Owner
Active Streak: 60 Days
Community Builder
Liked
Loved
 
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
Default

Originally Posted by ersatz928
The eye is less sensitive to blue light, effectively lowering the useful lumens of the blue bulbs.
Is 6000k blue?
Reply
Old Aug 1, 2023 | 12:41 PM
  #12  
ersatz928's Avatar
ersatz928
Melting Slicks
25 Year Member
Liked
Top Answer: 1
Top Answer: 5
 
Joined: Mar 2001
Posts: 2,671
Likes: 850
From: New Jersey
Default

Yes
Reply
Old Aug 1, 2023 | 01:31 PM
  #13  
aklim's Avatar
aklim
Team Owner
Active Streak: 60 Days
Community Builder
Liked
Loved
 
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
Default

Originally Posted by ersatz928
Yes
Mine seems more white than blue so not sure.
Reply
Old Nov 23, 2023 | 08:57 AM
  #14  
Quietcropduster's Avatar
Quietcropduster
Advanced
 
Joined: Oct 2020
Posts: 84
Likes: 5
From: Columbus, OH
Default

Originally Posted by aklim
'Why do you say that? I switched to 6000K bulbs for a couple trucks and it seems to do a better job for me in dark places when I have to drive in the back roads.
They have less visable light to the human eye due to their hue/tint. The kelvin color with the most visible light to the human eye is roughly 4500k, someone please feel free to correct me if i am in fact wrong lol
Reply
Old Nov 23, 2023 | 10:15 AM
  #15  
aklim's Avatar
aklim
Team Owner
Active Streak: 60 Days
Community Builder
Liked
Loved
 
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
Default

Originally Posted by Quietcropduster
They have less visable light to the human eye due to their hue/tint. The kelvin color with the most visible light to the human eye is roughly 4500k, someone please feel free to correct me if i am in fact wrong lol
I don't follow. Isn't daylight about 6000-6500? That's what I was going for.
Reply
Old Nov 23, 2023 | 11:20 AM
  #16  
ersatz928's Avatar
ersatz928
Melting Slicks
25 Year Member
Liked
Top Answer: 1
Top Answer: 5
 
Joined: Mar 2001
Posts: 2,671
Likes: 850
From: New Jersey
Default

The human eye is most sensitive to yellowish-green light.
Reply
Old Nov 23, 2023 | 11:27 AM
  #17  
aklim's Avatar
aklim
Team Owner
Active Streak: 60 Days
Community Builder
Liked
Loved
 
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
Default

Originally Posted by ersatz928
The human eye is most sensitive to yellowish-green light.
But is that a good thing to be dumping at night? How would it work when the light reflects off certain colors? This is why I thought white would be best since it simulates daylight and keeps things on an even keel.
Reply

Get notified of new replies

To Headlight Bulb Replacement questions

Old Nov 23, 2023 | 12:22 PM
  #18  
eboggs_jkvl's Avatar
eboggs_jkvl
Moderator emeritus
20 Year Member
Veteran: Army
 
Joined: Jun 2001
Posts: 18,599
Likes: 3,954
From: Jacksonville Florida BWO Dayton, Cincinnati, Bloomsbury NJ, Cincinnati
2015 C7 of the Year Finalist
Default

I have 6K lights and they seem white to me. They definitely are not blue.


Elmer
Reply
Old Nov 23, 2023 | 07:44 PM
  #19  
aklim's Avatar
aklim
Team Owner
Active Streak: 60 Days
Community Builder
Liked
Loved
 
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
Default

Originally Posted by eboggs_jkvl
I have 6K lights and they seem white to me. They definitely are not blue.


Elmer

Reply
Old Nov 23, 2023 | 08:12 PM
  #20  
Bill Dearborn's Avatar
Bill Dearborn
Tech Contributor
25 Year Member
Liked
Top Answer: 1
Top Answer: 3
 
Joined: Oct 1999
Posts: 41,058
Likes: 9,820
From: Charlotte, NC (formerly Endicott, NY)
Default

Originally Posted by aklim
However, they do provide less visibility to the driver while literally blinding oncoming older drivers. Do you really enjoy driving at night with poorer visibility while half the drivers coming toward you are blind and guessing where they have their car pointed? The best lights are around 4K to 4.5K color temperature. The same ones that were delivered from the factory.

Bill
Reply



All times are GMT -4. The time now is 08:52 PM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE