Buy 23526400 - Genuine Detroit Diesel Wiring Harness - EXHAUST AFTER-TREATMENT DEVICE - wisentpartscenter.com

Description

Detroit Diesel 23526400 Wiring Harness - Genuine Detroit Diesel Exhaust Aftertreatment (ATD) Harness

The Detroit Diesel 23526400 is a genuine exhaust aftertreatment wiring harness. It carries the sensor and control signals for the aftertreatment system - the DPF/DOC/SCR sensors, temperature and pressure sensors, NOx sensors, and DEF dosing - between those components and the aftertreatment control module. It's what lets the ECM/ACM monitor and manage emissions, and it lives in a hot, dirty spot along the exhaust.

Verify fitment with us before ordering to ensure the correct part for your application.

Purpose of the Part

It's the signal path for the emissions system. Every temp sensor, pressure sensor, NOx sensor, and the DEF dosing hardware reports back through this harness to the aftertreatment control module, which runs regens and doses DEF off that data. Bad wiring here and the system loses sight of what the exhaust is doing - which on these engines means codes, failed regens, and derates.

Brand Information

Detroit Diesel, a Daimler Trucks North America company, builds these aftertreatment harnesses to survive the heat and vibration next to the exhaust while keeping the emissions sensors reporting clean - which is exactly where cheaper harnesses fail.

How to Identify an OEM Part

- Look for the Detroit Diesel label/tag with the part number - 23519409 or 23526400.
- Genuine harnesses use OE connectors and high-temp insulation rated for the exhaust environment.

Why buy from Wisent Parts
  • ⏱️
    Fast shipping
    Orders before 12PM EST ship same business day.
  • 🛡️
    180-day warranty
    All parts covered from delivery date.
  • ↩️
    Easy returns
    30-day returns.
  • ✅
    Verify fitment
    Send VIN/ESN and we’ll confirm.

Shop with confidence

Warranty & Return Information
Warranty Information

Wisent Parts offers a 180-day warranty on all parts from the date of delivery. This warranty covers orders placed directly through our website. If a part fails during this period, we’re here to help - whether it’s a replacement, repair, or refund. For full details, refer to the Warranty page.

Return Information

All electrical parts and final sale items are non-refundable and cannot be returned. Please double-check compatibility before purchase. If you have questions, our support team is here to help before you place your order.