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391.35
Part #: GM12637647
GM 12637647 Replacement Driver Side Exhaust Manifold
★★★★★
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Description
The GM 12637647 Replacement Driver Side Exhaust Manifold is a genuine GM replacement for the cracked or leaking manifold in your 2001-2016 GM 6.6L Duramax. A leaking exhaust manifold will cause a loss of power by not letting the turbo spool to its complete potential. This manifold will restore the spool-up, and throttle response, and restore power that was lost due to the leak. This GM OE part is constructed to the same high-quality standards as your factory exhaust manifold. Gasket not included.
Features:
- Direct-Fit Replacement
- Genuine GM OE Exhaust Manifold
- Constructed With High-Quality Materials
Vehicle Fitment
| YEAR | MAKE | FOR ENGINE SERIES |
|---|---|---|
| 2001 | Chevy | 6.6L LB7 Duramax |
| 2002 | Chevy | 6.6L LB7 Duramax |
| 2003 | Chevy | 6.6L LB7 Duramax |
| 2004 | Chevy | 6.6L LB7 Duramax |
| 2004.5 | Chevy | 6.6L LLY Duramax |
| 2005 | Chevy | 6.6L LLY Duramax |
| 2006 | Chevy | 6.6L LLY/LBZ Duramax |
| 2007 | Chevy | 6.6L LLY/LBZ Duramax |
| 2007.5 | Chevy | 6.6L LMM Duramax |
| 2008 | Chevy | 6.6L LMM Duramax |
| 2009 | Chevy | 6.6L LMM Duramax |
| 2010 | Chevy | 6.6L LMM Duramax |
| 2011 | Chevy | 6.6L LML Duramax |
| 2012 | Chevy | 6.6L LML Duramax |
| 2013 | Chevy | 6.6L LML Duramax |
| 2014 | Chevy | 6.6L LML Duramax |
| 2015 | Chevy | 6.6L LML Duramax |
| 2001 | GMC | 6.6L LB7 Duramax |
| 2002 | GMC | 6.6L LB7 Duramax |
| 2003 | GMC | 6.6L LB7 Duramax |
| 2004 | GMC | 6.6L LB7 Duramax |
| 2004.5 | GMC | 6.6L LLY Duramax |
| 2005 | GMC | 6.6L LLY Duramax |
| 2006 | GMC | 6.6L LLY/LBZ Duramax |
| 2007 | GMC | 6.6L LLY/LBZ Duramax |
| 2007.5 | GMC | 6.6L LMM Duramax |
| 2008 | GMC | 6.6L LMM Duramax |
| 2009 | GMC | 6.6L LMM Duramax |
| 2010 | GMC | 6.6L LMM Duramax |
| 2011 | GMC | 6.6L LML Duramax |
| 2012 | GMC | 6.6L LML Duramax |
| 2013 | GMC | 6.6L LML Duramax |
| 2014 | GMC | 6.6L LML Duramax |
| 2015 | GMC | 6.6L LML Duramax |
Specifications
- MPN 12637647
- SKU GM12637647
- ID 23830
- Manufacturer Name GM / ACDelco
- Shipping Weight 10.00 lb.
- Shipping Length 19 in.
- Shipping Width 5 in.
- Shipping Height 5 in.
- Fuel Type Diesel
-
Prop 65
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
- Internal L0.00R11.00
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Reviews
★★★★★
5.0/5 Stars out of 3 Reviews
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J. Bonds (HOCKLEY Texas) | June 19th, 2020
Nice lml manifold for my lbz that's not pinched. Fits like factory.
William (DE) | April 30th, 2020
Broke a bolt in mine doing headgaskets, welded 6 nuts to try and remove broken piece to no avail...
Ordered this on Sunday, had it Tuesday. It fit perfectly and got me back on the road
Tanner (KS) | August 4th, 2018
If you dont want to spend an extra $70 for the BD mnifold just cause it has a pyro port then this is the way to go. Hardest part is getting the up pipe bolts out and could of had it all said and done in a couple hours but sense I had to (unsuccessfuly) attempt to extract a broken glow plug took me a little longer. Good factory upgrade.
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Questions and Answers
Does this have a hole for an EGT probe like the bd manifold or would I need to drill and tap it for one still?
View Staff Answer
Answer
Nope. This product is an OE Factory Replacement so it would not come with any holes pre-drilled for an aftermarket pyro probe. It would be up to the end user to drill and install one.
Nope. This product is an OE Factory Replacement so it would not come with any holes pre-drilled for an aftermarket pyro probe. It would be up to the end user to drill and install one.
Does this manifold have the egt probe port built in?
View Staff Answer
Answer
No, the GM 12637647 Updated Driver Side Exhaust Manifold does not have an EGT port.
No, the GM 12637647 Updated Driver Side Exhaust Manifold does not have an EGT port.
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Fitment verification applies to year, make and engine only. Individual details such as model, trim packages, build dates, and other factory options can change fitment and must be verified by customer.
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