# Sinister Diesel 11-16 GM Duramax 6.6L LML Radiator Pipe

Factory coolant hoses are prone to abrasions and cracking over time that could lead to cooling system failures, but this 11-16 Duramax 6.6L radiator pipe kit is the perfect way to ensure that your cooling system is reliable for years to come. This upper radiator pipe is constructed of abrasion- and crack-resistant 6061 aluminum, and its precision mandrel bend delivers a perfect factory fit. Avoid unexpected downtime and give your GM Duramax engine an extra level of protection with this stylish and high-quality radiator pipe., Not only does this 11-16 Duramax 6.6L radiator pipe kit provide added protection against costly damage and wear, it also helps improve the looks of the engine compartment with a powder coated and polished beautiful Sinister Blue finish for the radiator pipe, and even the silicone boots feature the Sinister Diesel logo. The extra-thick, four-ply silicone boots are not only heat-resistant, but they are also rated to 400psi for optimal durability. A must for any diesel truck!, Features:Abrasion and crack-resistant 6061 aluminum piping., Precision Mandrel Bent Tubing for a Perfect Fit, 4-Ply Silicone Boots that are rated to 400psi, Powder Coated and Polished in Sinister Blue for a beautiful finishIncludes:(1) Aluminum Radiator Pipe, (2) Silicone Boots, (4) Stainless Steel Hose Clamps.

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:** 279.84 CAD
- **Vendor:** Sinister Diesel
- **Type:** Intercooler Pipe Kits

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 279.84 CAD | In stock |

## Images

- Photo - Primary
- Photo - Primary
- User 2
- User 3
- User 1
- Logo Image

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/sinister-diesel-11-16-gm-duramax-6-6l-lml-radiator-pipe)
> Updated: 2026-07-07