Ignitions and Electrical› Wiring Harnesses

Rywire

Engine Swap Wiring Harness Relay and Fuse Kit

$475.00

SKU: RYW-FUSE-UNV

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

This harness includes 5 relays and fuses to facilitate the operation of a Rywire engine harness in any vehicle. It features a 4-pin DTP connector for fuel pump, fan, spare output, and switched output, with easy installation by connecting to the fan, fuel pump power, and ignition switch.
Show original supplier description
The Rywire Universal Fuse/Relay Box offers a streamlined solution for vehicles primarily utilizing the engine. This versatile harness comes equipped with five relays and fuses, simplifying the integration of a Rywire engine harness into diverse automotive applications. It includes a four-pin DTP connector, providing dedicated connections for the fuel pump, cooling fan, a spare output, and a switched output, ensuring comprehensive control over essential engine functions. It is explicitly stated that this fuse/relay box is NOT for use with K series harnesses, ensuring proper compatibility and preventing potential issues.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandRywire
Part NumberRYW-FUSE-UNV
CategoryIgnitions and Electrical
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy