BMW E30 S54/M54/M52TU wiring harness

2 - 3 Days BMW E30 S54/M54/M52TU wiring harness


Did you know we price match?


BMW E30 S54/M54/M52TU wiring harness 

This engine swap wiring harness will make your engine swap much easier! Instructions are included for a truly seamless install. Transform your aging E30 with some modern power and save yourself the headache of the dreaded wiring with this swap harness!

This harness includes everything that you will need to get your engine running. However, your DME will need some modifications. These modifications include, but are not limited to: EWS delete, rear o2 sensor deletes, sap valve delete, etc. Only DME models MS42, MS43, MSSS54, or MSSS54HP are compatible for this conversion. 

This harness is intended for US left hand drive models. 

If you would like the s54 version of this harness to come with the US version fuel pump wiring it is required that you use the Timed EKP-Modul (Part# 61357892976). This relay will not be included with our harnesses. All other standard relays and fuses are included. CAN functions for the check engine light and the A/C functions are not included. All our harnesses for the e30 chassis come with the obd2 port for diagnostics.

Options available for the S54/M54/M52TU wiring harness:

- Year e30 (86-87, 87-89, 90-92)

- If 1987, does the e30 have a c104 connector in the glove box? (3 pin connector with red/green, yellow/white, and a black wire)

- Model (318i/is, 325e, 325i/is, 325ix, or m3)

- SAP (secondary air pump)

- Oil Level Sensor (M54 and M52TU only) 

- Oil Temp (e30 M3 only)


- Available for years 84-95

Want to be sure you’re paying the lowest price?
We guarantee it.

We are making everything possible to provide you the best products at the lowest prices possible. If you find a product of equal quality and value, we'll match it.
If you find one of our products with a lower price than ours, please use this form. We will compare the prices and will offer you the product at the same price!

Here’s how it works:

1. Found a cheaper price?
2. Ask us for a price match - Just fill out the form and we’ll check the details.
3. If you are correct, we will offer you the product for the same price and you can enjoy your stay knowing you got the lowest price.

*The product must come from a reputable vendor and the quality must match ours.  This will be decided solely by us and will ensure that quality is equal. We reserve the right to refuse any request that is deemed unreasonable.

Please fill in the form below:
* Required fields

Write a review

Please login or register to review
  • Brand: Garagistic
  • Product Code: BMW-E30-S54-M54-M52TU-Harness
  • Availability: 2 - 3 Days
  • $500.00

Available Options

Tags: e30 wiring harness, s54 swap, m54 swap, s54, m54, m52TU, swap, harness, wiring