# Wehrli 01-16 Chevrolet 6.6L LB7/LLY/LBZ/LMM/LML Duramax Up Pipe Bolt Kit

The WCFab ARP Bolt Kit for 2001-2016 Duramax Up Pipes or LB7 Turbo Down Pipes is comprised of 6 specially selected high strength 12 point ARP fasteners and matched washers with a pack of assembly lube and are designed as an upgrade to the aging OEM fasteners used on the 2001-2016 and newer 6.6L Duramax engines to connect the up pipes to the exhaust manifolds and turbocharger pedestal or the down pipe to turbo exhaust outlet on the LB7. During our performance development work on these engines we have seen numerous occurrences of factory fasteners seizing or breaking in the manifolds, pedestal, or turbine housing. This kit is a simple, cost effective upgrade for peace of mind and ease of serviceability for both stock and modified trucks. - - Torque to 54 FT LBS - - Replaces the following GM part numbers: 11611132

-   ARP Bolt kit for 2001-2016 Duramax Up Pipes or LB7 Turbo Down pipe. 6 Washers and Bolts for installing 1 up pipe. Includes ARP Lube.
-   Purchase two sets when installing a pair of up pipes.

This Part Fits:

Year

Make

Model

Submodel

2006-2010

Chevrolet

Express 2500

Base

2006

Chevrolet

Express 2500

LS

2006

Chevrolet

Express 2500

LT

2006-2010

Chevrolet

Express 3500

Base

2001-2005

Chevrolet

Silverado 2500 HD

Base

2015-2016

Chevrolet

Silverado 2500 HD

High Country

2001-2006

Chevrolet

Silverado 2500 HD

LS

2001-2016

Chevrolet

Silverado 2500 HD

LT

2007-2016

Chevrolet

Silverado 2500 HD

LTZ

2004-2016

Chevrolet

Silverado 2500 HD

WT

2007

Chevrolet

Silverado 2500 HD Classic

LS

2007

Chevrolet

Silverado 2500 HD Classic

LT

2007

Chevrolet

Silverado 2500 HD Classic

WT

2001-2005

Chevrolet

Silverado 3500

Base

2001-2006

Chevrolet

Silverado 3500

LS

2001-2006

Chevrolet

Silverado 3500

LT

2004,2006

Chevrolet

Silverado 3500

WT

2007

Chevrolet

Silverado 3500 Classic

LS

2007

Chevrolet

Silverado 3500 Classic

LT

2007

Chevrolet

Silverado 3500 Classic

WT

2015-2016

Chevrolet

Silverado 3500 HD

High Country

2007-2016

Chevrolet

Silverado 3500 HD

LT

2007-2016

Chevrolet

Silverado 3500 HD

LTZ

2007-2016

Chevrolet

Silverado 3500 HD

WT

2006-2010

GMC

Savana 2500

Base

2006-2010

GMC

Savana 3500

Base

2002-2005,2015-2016

GMC

Sierra 2500 HD

Base

2011-2016

GMC

Sierra 2500 HD

Denali

2001-2002,2006

GMC

Sierra 2500 HD

SL

2001-2016

GMC

Sierra 2500 HD

SLE

2001-2016

GMC

Sierra 2500 HD

SLT

2003-2014

GMC

Sierra 2500 HD

WT

2007

GMC

Sierra 2500 HD Classic

SL

2007

GMC

Sierra 2500 HD Classic

SLE

2007

GMC

Sierra 2500 HD Classic

SLT

2007

GMC

Sierra 2500 HD Classic

WT

2002-2005

GMC

Sierra 3500

Base

2001-2002,2006

GMC

Sierra 3500

SL

2001-2006

GMC

Sierra 3500

SLE

2001-2006

GMC

Sierra 3500

SLT

2004-2006

GMC

Sierra 3500

WT

2007

GMC

Sierra 3500 Classic

SL

2007

GMC

Sierra 3500 Classic

SLE

2007

GMC

Sierra 3500 Classic

SLT

2007

GMC

Sierra 3500 Classic

WT

2015-2016

GMC

Sierra 3500 HD

Base

2011-2016

GMC

Sierra 3500 HD

Denali

2007-2016

GMC

Sierra 3500 HD

SLE

2007-2016

GMC

Sierra 3500 HD

SLT

2007-2014

GMC

Sierra 3500 HD

WT

## Details

- **Price:** 74.96 CAD
- **Vendor:** Wehrli
- **Type:** Hardware Kits - Other

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 74.96 CAD | In stock |

## Images

- Photo - Primary
- Photo - Mounted
- Photo - Mounted
- Photo - Mounted
- User 1
- Logo Image

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/wehrli-01-16-chevrolet-6-6l-lb7-lly-lbz-lmm-lml-duramax-up-pipe-bolt-kit)
> Updated: 2026-07-03