Parts Now Pay Later with
Log In Cart
Log In
Create An Account
Log In Cart
Your Cart Is Empty
Cart Total
Edit Your Cart Checkout
Free Shipping Over $299.99

Free Shipping Over $299.99

Orders of $299.99 or more ship free within the continental U.S.
Shipping to Alaska and Hawaii is additional and not included.
We do not ship international at this time.

Shipping Policy

This part does not have vehicle specific fitment. Please contact us if you need fitment assistance.

K-Tuned K-Swap Race Harness: Custom Harness
Part Number: KTH-204-RCE

K-Tuned K-Swap Race Harness: Custom Harness-A1
K-Tuned K-Swap Race Harness: Custom Harness-A2
K-Tuned K-Swap Race Harness: Custom Harness-A3
Images may be for reference only

K-Tuned K-Swap Race Harness: Custom Harness
Part Number: KTH-204-RCE

Be the first to review!
$199.99

Reward Points

It pays to shop with K Series Parts and our reward points program! For every $1.00 you spend you earn reward points.

They are easy to earn, just log in to your account when you check out. If you don't have one it is free and easy to setup.

They are easy to use during check out. Click on the "Have Reward Points?" on the shipping and payment selection page.

Reward Point Program Details

You earn 2 points for every $1.00 that you spend.

100 points equal a $1.00 discount.

Maximum discount per order is 5% of the order total.

There is no minimum order total to redeem points.

Points do not apply to shipping or sales tax.

Points are not redeemable for cash.

The point value per dollar, points earned per purchase, and order minimum are subject to change.

Earn 400 reward points. Learn More

10+ In Stock
Ask us a Question

Product Details

Part Number: KTH-204-RCE
Brand: K-Tuned

Applications: Custom setups - Race Applications.

A K-swap conversion harness is a must-have part for any K-series engine swap. The harness is designed for custom applications. The harness includes plugs needed to connect to the engine harness, necessary relays, and labeled flying leads. This saves a lot of time sourcing plugs and figuring out wiring.

  • Loose wires
  • 12V Constant Power (Fused) - Red
  • 12V Ignition - Yellow
  • Starter Relay Signal - Black/White
  • Speedometer White/Green
  • Tachometer - Blue
  • Check Engine Light - Green/Brown
  • Charge Light - White/Blue
  • Oil Pressure Light - Yellow/Red
  • Fan Control - Green
  • Fuel Pump - Green/Yellow

Due to the manufacturer's price control policy, this item may be excluded from promotions and discounts

WARNING: This product may contain chemicals known to the State of California to cause cancer or birth defects. www.P65Warnings.ca.gov.

Vehicle Fitment

Universal K Series

This part does not have vehicle specific fitment

Reviews ★★★★★ ★★★★★

No Reviews Yet!

Write a Review

Also Bought

K-Tuned 02-04 RSX / 02-05 Civic Si Tucked Engine Harness
$799.99
K-Tuned 02-04 RSX / 02-05 Civic Si Tucked Engine Harness
K-Tuned Immobilizer/Multiplexor Bypass
$219.99
K-Tuned Immobilizer/Multiplexor Bypass
K-Tuned 02-06 RSX 4 BAR MAP Sensor
$109.99
K-Tuned 02-06 RSX 4 BAR MAP Sensor
K-Tuned 02-06 RSX V3 Billet Shifter Box
$449.99
K-Tuned 02-06 RSX V3 Billet Shifter Box
K-Tuned K-Swap Billet Shifter Base Plate
$139.99
K-Tuned K-Swap Billet Shifter Base Plate
K-Tuned 92-95 Civic / 94-01 Integra Spherical Bushing Front Camber Kit
$349.99
K-Tuned 92-95 Civic / 94-01 Integra Spherical Bushing Front Camber Kit
K-Tuned K-Swap Race-Spec Shifter Cables (K24Z7 Transmission)
$439.99
K-Tuned K-Swap Race-Spec Shifter Cables (K24Z7 Transmission)
K-Tuned 02-06 RSX Power Steering Pump Inlet Fitting
$29.99
K-Tuned 02-06 RSX Power Steering Pump Inlet Fitting
K-Tuned K24 Intake Manifold Coolant Adapter
$104.99
K-Tuned K24 Intake Manifold Coolant Adapter
K-Tuned 80mm Throttle Body with RBC Adapter
$369.99
K-Tuned 80mm Throttle Body with RBC Adapter
K-Tuned K-Series Clutch Line Kit
$99.99
K-Tuned K-Series Clutch Line Kit
K-Tuned 02-04 RSX Power Steering Line Kit
$174.99
K-Tuned 02-04 RSX Power Steering Line Kit

Free Shipping

K Series Parts offers free shipping for the majority of items that we sell that are shipped inside the continental United States.

Free shipping is done by the most cost effective shipping method for each order and delivery can takes 3 to 5 days on average.

Faster express shipping is available for an additional charge and calculated at checkout or on the edit basket page.

Certain products are not included in the free shipping, shipped via truck freight, or fulfilled by an outside supplier.

Alaska, Hawaii, and international orders are charged shipping and it is calculated by the website at checkout or on the edit basket page.

Instant Discount

Add this item to your cart to get an instant discount!

Not Available for Pickup

This item is not currently available for pick-up in our retail showroom and will be shipped directly to you.