SKU: 59768886068

Universal Relay Harness MotoCycle Single Output (H4) (H171)

$35.96 $39.95
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  • USA
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Ships within 48 hours · Estimated delivery Aug 18 - Aug 23

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Description

Universal Relay Harness MotoCycle Single Output (H4) (H171)Description The Morimoto H4 Single Lamp MotoCycle Relay Harness is specifically designed to provide steady voltage to your motorcycle's HID system, ensuring the longevity of your upgraded headlights. Unlike other harnesses, its wire lengths are ideal for motorcycle layouts, offering a ready to use solution out of the box. This high quality harness powers one HID ballast and one high beam function, making it perfect for retrofitting single bi xenon

Description

The Morimoto H4 Single-Lamp MotoCycle Relay Harness is specifically designed to provide steady voltage to your motorcycle's HID system, ensuring the longevity of your upgraded headlights. Unlike other harnesses, its wire lengths are ideal for motorcycle layouts, offering a ready-to-use solution out of the box. This high-quality harness powers one HID ballast and one high beam function, making it perfect for retrofitting single bi-xenon projectors or HID bulbs, all while boasting a sleek design with braided TechFlex insulation.

Part Number: H171

Features
  • Wiring: 1x Morimoto MotoCycle Relay Harness (H4 / Single Output)
  • Warranty: 2 Years
Notes
  • The MotoCycle relay harness is designed to deliver steady voltage to your HID system directly from the bike's battery.
  • Factory headlight outputs are really only designed to power a halogen light bulb and with the not-so-stable electrical systems on motorcycles - that could mean bad news for the longevity of your upgraded headlights without a harness.
  • The Morimoto H4 Single-Lamp Motorcycle specific harness is the first and only high-quality harness on the market that's designed for retrofitting HID's into the headlights on motorcycles.
  • The MotoCycle spec's wire lengths are ideal for the layout on a motorcycle.
  • It is not designed for a car's engine bay and has to be modified or rigged to work on a bike - this one should be ready to go out of the box.
  • Each harness will power one HID ballast and one high beam function (solenoid) from one input trigger.
  • Perfect for retrofitting either a single bi-xenon (hi/lo) projector or HID bulb in your headlight.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 59768886068

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4.3 ★★★★★
Based on 17 reviews
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Verified Purchase
Madi R.
Battle Creek, US
★★★★★ 4
Overpriced but effective.
Color: Cream
I happened to get lucky and get a warehouse deal at an additional 30% discount. Even at $25, it feels a little overpriced. But it was easy to assemble and serves its purpose. If you line the Velcro up exactly, the panels sag, if you stretch past even, but where it still grips, they look pretty ok. It is very light and does fold very compact for easy storage.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026
S
Verified Purchase
Sunny in AZ
Port Orchard, US
★★★★★ 5
Great price for a great product
Color: Coal Black
Excellent quality and great price to boot. Easy to assemble and folds up easily to be stored. We are using it as a privacy screen when we have company that needs to sleep on the couch and also to block off a hallway leading to a guest suite. It looks great and is as described in the ad
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 16, 2025
C
Verified Purchase
Carissa L
Pawtucket, US
★★★★★ 1
No.
Color: Coal Black, Color: Coal Black
This was horribly made and a nightmare to put together. You have to basically bend the bars to get the coverings attached. The sizes don't match. The stickers that label the parts are impossible to remove and if you do get them off theres a lot of residue left behind. On top of that once it was put together I noticed theres a big dirty foot print on it which is definitely not mine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 5, 2026
D
Verified Purchase
Duckie mom
Phoenix, US
★★★★★ 3
You have to add weight to it
Color: Coal Black
It does its job and it was easy to put together but it's a little on the flimsy side and it will easily be knocked down. So you're going to have to figure out a way to make the legs heavier? I used cinder blocks, single cinder blocks and it works just fine. Just know that it will knock over super easy
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Reviewed in the United States on January 22, 2026
O
Verified Purchase
Oneida P
Lowell, US
★★★★★ 5
The snap to put them together.
Color: Coal Black
This came in handy in the foyer. I didn’t want to see the door from my couch. I must be weak found it hard to snap them together. I kept 2 my daughter took the other 2.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026

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