- Brand: Mercury
- Size: 135 150 175 HP
- Color: Black
- Style: 2.5L DFI
- Condition: Used
- Notes: Good condition!
- SKU: 26-52527 MWH
- Manufacturer Part Number: 878084T3
- Country of Manufacture: United States
- Motor & Engine Type: Mercury
- Part Type: Motors, Engines & Components
- Other Part Number: N/A
- Surface Finish: N/A
- Inventory Number: 26-52527 MWH
- Website Category: Ignition and Electrical Systems
- Website Sub Category: Wiring Harness and Motor Cables
- UPC: N/A
Part Numbers
878084T3
Description
OEM Mercury Optimax engine wiring harness.
Removed from a freshwater engine. This harness connects the primary engine electrical components including ignition, fuel injection, and sensors on the Optimax DFI platform.
Comes exactly as pictured.
Condition
- Removed from a freshwater engine
- All wires are completely intact
- No cuts, burns, or breaks
- Wire endings and connectors are in good shape
- Normal cosmetic wear from use and storage
- OEM Mercury part
Fitment
Mercury 2.5L Optimax DFI V6
2000–2005 — 135 150 175 HP
Always verify fitment by part number or serial number.
Warranty
This part is sold with a 1 YEAR WARRANTY provided by Southcentral Outboards.
If the part fails or stops working within 1 year of purchase, we will replace it. If a replacement is not available, a refund will be issued.
Disclaimer
We are using various web resources to cross-reference and describe our parts. These are not always 100% accurate but accurate to the best of our knowledge. Please verify by model or serial number. If unsure, contact us.
Returns due to ordering incorrectly or changing your mind within 45 days may be accepted with a 20% restocking fee, with buyer responsible for shipping. Please contact us directly to facilitate returns rather than opening an eBay return request.

