# Fleece Performance 11-16 GM 2500/3500 Duramax LML Fan Extension Harness

Our replacement fan extension harness for the 2011-2016 LML Duramax allows you to repair a broken or damaged harness without needing to replace the entire fan assembly. This harness is mounted to the fan assembly and connects to the fan and chassis harness. Produced in-house, our manufacturing process includes fully automated wire cutting and terminal crimping to ensure you get the highest quality replacement parts you need to get your truck back on the road quickly. Application Notes: Fits cooling fan clutch part numbers: 15-40580, 15-40513, 84144840, 25838900, 1540513, 84166745, 23134137

This Part Fits:

Year

Make

Model

Submodel

2015-2016

Chevrolet

Silverado 2500 HD

High Country

2011-2016

Chevrolet

Silverado 2500 HD

LT

2011-2016

Chevrolet

Silverado 2500 HD

LTZ

2011-2016

Chevrolet

Silverado 2500 HD

WT

2015-2016

Chevrolet

Silverado 3500 HD

High Country

2011-2016

Chevrolet

Silverado 3500 HD

LT

2011-2016

Chevrolet

Silverado 3500 HD

LTZ

2011-2016

Chevrolet

Silverado 3500 HD

WT

2015-2016

GMC

Sierra 2500 HD

Base

2011-2016

GMC

Sierra 2500 HD

Denali

2011-2016

GMC

Sierra 2500 HD

SLE

2011-2016

GMC

Sierra 2500 HD

SLT

2011-2014

GMC

Sierra 2500 HD

WT

2015-2016

GMC

Sierra 3500 HD

Base

2011-2016

GMC

Sierra 3500 HD

Denali

2011-2016

GMC

Sierra 3500 HD

SLE

2011-2016

GMC

Sierra 3500 HD

SLT

2011-2014

GMC

Sierra 3500 HD

WT

## Details

- **Price:** 86.18 CAD
- **Vendor:** Fleece Performance
- **Type:** Wiring Harnesses

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 86.18 CAD | In stock |

## Images

- Photo - Primary
- User 1
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- Logo Image

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/fleece-performance-11-16-gm-2500-3500-duramax-lml-fan-extension-harness)
> Updated: 2026-06-27