Universal Fog Light Wiring Harness with Switch
SKU: K2-3863-UNV-006-LGHT
Universal Fog Light Wiring Harness with Switch
Complete wiring solution for aftermarket fog lights, including inline switch for independent control. Built with durable construction to handle engine bay heat and vibration. Designed for DIY installation with basic hand tools and a test fit before final routing.
Key Features
- Integrated inline switch - Toggle fog lights on/off independently from main headlights
- Universal fitment design - Routes through factory grommet locations on most vehicles
- Engine bay rated construction - Withstands heat, moisture, and vibration over time
Specs
- Complete harness assembly with integrated switch
Whats Included
- Fog light wiring harness
- Inline switch
Frequently Asked Questions
Will this harness work with my existing factory wiring?
This harness is designed to work standalone with aftermarket fog lights. If you're tapping into factory wiring, test the polarity and amperage draw before connecting—your vehicle's service manual will specify safe limits for auxiliary circuits.
Do I need additional relays or fuses?
Most fog light setups benefit from a dedicated relay and inline fuse to protect your wiring and vehicle's electrical system. Check your fog light manufacturer's specs for recommended amperage, then size a fuse and relay accordingly.
Where do I mount the switch?
Switch mounting location depends on your dash layout. Test-fit the harness routing first, then decide between dash pod, A-pillar, or steering column—wherever it's within comfortable reach of the driver.
K2 Industries & OUR OWN FAQ's
How do I check fitment?
Check the listing for your year, make, model, trim and engine. Body style, build date and factory options can matter. If the listing is unclear, send FI Performance your vehicle details and the product link or SKU before ordering.
What comes with this part?
Check the product description for quantities, hardware and accessories. Photos may show the part installed with other components. Ask us if you need to confirm whether a part is sold individually, as a pair or as a kit.
Will I need extra parts or modifications?
That depends on the part and your setup. Check for adapters, wiring, coding, tuning, trimming or additional hardware before booking installation. If you already have aftermarket parts, tell us what’s installed.
What should I check for headlights or tail lights?
Match your factory lighting type, connector and body style. Halogen, HID and LED assemblies can differ even on the same model. Check pre-facelift versus facelift fitment and features such as adaptive lights or leveling.
Should I have a shop install it?
We recommend a qualified installer for wiring, engine, brake and suspension work. Inspect the part and confirm fitment before cutting, drilling, painting or modifying anything.
When will my order ship?
Availability and lead time vary by item. If you’re working around a shop appointment or event, contact FI Performance for a current estimate before ordering.
How do returns and warranty claims work?
Contact FI Performance with your order number before sending anything back. Eligibility depends on the item, its condition and the applicable policy. If there’s damage or a defect, keep the packaging and send photos of the part, label and issue.
Is this part intended for street use?
Check the listing for any use restrictions and confirm the requirements where you drive. If you need a specific approval or certification, ask us to verify it for the exact part number before ordering.
Why should I buy from FI Performance?
FI Performance is a USA-based team of automotive enthusiasts focused on quality, reliability and helpful support. We work closely with manufacturers and can help guide your build from product selection through order support.
How can I contact customer support?
Reach FI Performance by live chat, email or phone for product questions, order help and automotive guidance.
What parts are best for my car and goals?
Tell FI Performance your vehicle, intended use and goals. We can help narrow down the right parts and put together a practical modification plan for your build.
Do you offer financing options?
Eligible financing options are shown at checkout. Select the available financing method during checkout to review payment terms and monthly-payment options.
How do I track my order?
When your order ships, FI Performance sends tracking information by email so you can follow delivery progress and view the estimated arrival date.
What payment methods do you accept?
FI Performance accepts major credit cards, PayPal and any financing options displayed at checkout.
How do I know if I have factory Xenon lighting?
Factory Xenon lights commonly have a blue-tinted output and a short warm-up period. Check your owner's manual or send FI Performance your vehicle details so we can help confirm your factory lighting type.
What is the difference between Halogen, HID and LED lighting?
Halogen lighting is the traditional, affordable option. HID lighting typically provides greater brightness, while LED lighting is energy-efficient and long-lasting. FI Performance can help you select the correct option for your vehicle.
How do I prevent lighting condensation?
Condensation can occur as temperatures change. Lighting assemblies are designed to minimize it; contact FI Performance for guidance if you see persistent condensation or have product-specific questions.
How do I check fitment?
Check the listing for your year, make, model, trim and engine. Body style, build date and factory options can matter. If the listing is unclear, send FI Performance your vehicle details and the product link or SKU before ordering.
What comes with this part?
Check the product description for quantities, hardware and accessories. Photos may show the part installed with other components. Ask us if you need to confirm whether a part is sold individually, as a pair or as a kit.
Will I need extra parts or modifications?
That depends on the part and your setup. Check for adapters, wiring, coding, tuning, trimming or additional hardware before booking installation. If you already have aftermarket parts, tell us what’s installed.
What should I check for headlights or tail lights?
Match your factory lighting type, connector and body style. Halogen, HID and LED assemblies can differ even on the same model. Check pre-facelift versus facelift fitment and features such as adaptive lights or leveling.
Should I have a shop install it?
We recommend a qualified installer for wiring, engine, brake and suspension work. Inspect the part and confirm fitment before cutting, drilling, painting or modifying anything.
When will my order ship?
Availability and lead time vary by item. If you’re working around a shop appointment or event, contact FI Performance for a current estimate before ordering.
How do returns and warranty claims work?
Contact FI Performance with your order number before sending anything back. Eligibility depends on the item, its condition and the applicable policy. If there’s damage or a defect, keep the packaging and send photos of the part, label and issue.
Is this part intended for street use?
Check the listing for any use restrictions and confirm the requirements where you drive. If you need a specific approval or certification, ask us to verify it for the exact part number before ordering.
Why should I buy from FI Performance?
FI Performance is a USA-based team of automotive enthusiasts focused on quality, reliability and helpful support. We work closely with manufacturers and can help guide your build from product selection through order support.
How can I contact customer support?
Reach FI Performance by live chat, email or phone for product questions, order help and automotive guidance.
What parts are best for my car and goals?
Tell FI Performance your vehicle, intended use and goals. We can help narrow down the right parts and put together a practical modification plan for your build.
Do you offer financing options?
Eligible financing options are shown at checkout. Select the available financing method during checkout to review payment terms and monthly-payment options.
How do I track my order?
When your order ships, FI Performance sends tracking information by email so you can follow delivery progress and view the estimated arrival date.
What payment methods do you accept?
FI Performance accepts major credit cards, PayPal and any financing options displayed at checkout.
How do I know if I have factory Xenon lighting?
Factory Xenon lights commonly have a blue-tinted output and a short warm-up period. Check your owner's manual or send FI Performance your vehicle details so we can help confirm your factory lighting type.
What is the difference between Halogen, HID and LED lighting?
Halogen lighting is the traditional, affordable option. HID lighting typically provides greater brightness, while LED lighting is energy-efficient and long-lasting. FI Performance can help you select the correct option for your vehicle.
How do I prevent lighting condensation?
Condensation can occur as temperatures change. Lighting assemblies are designed to minimize it; contact FI Performance for guidance if you see persistent condensation or have product-specific questions.
Things that could pair well together with what you are looking at...