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AFE 46-40012 BladeRunner Ductile Iron Exhaust Manifold
PART#
46-40012 | SKU AFE46-40012
★★★★★
Vehicle Fitment For:
2003-2007 Dodge with 5.9L Cummins Engine
See full application list below
$581.00
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Description
The AFE 46-40012 BladeRunner Ductile Iron Exhaust Manifold for your 2003-2007 Dodge 5.9L Diesel sets a new standard in manifold design. In recent testing, this exhaust manifold outflowed the factory exhaust manifold by up to 23%, improving performance and throttle response. The thick wall (0.25" vs. 0.15") T3 flange design increases strength, eliminating warping and cracking prevalent in the factory exhaust manifolds. The matched ports and merged runner design reduces exhaust backpressure, maximizing exhaust flow. Once you install this awesome exhaust manifold, you will feel quicker turbo spool up times, improved throttle response and increased performance. Gaskets Not Included.
One-Piece Construction:
This manifold is constructed of durable cast ductile iron with a reinforcing rib for maximum strength between the port flanges.
Dual Auxiliary Ports:
Two Exhaust Gas Temperature (EGT) probe ports are supplied for easy installation of gauges or testing equipment.
Features:
- One-Piece Design
- Dual Auxiliary Ports
- Ductile Iron Construction
Note:
Gaskets and replacement manifold bolts not included. (See Related Items)
Manufacturer Warranty*:
2 Year
2 Year
Disclaimer: XDP is in no way affiliated with Cummins or any of its subsidiaries or related companies, and that Cummins has not authorized the sale of any of XDP's parts, and has not tested or approved any of XDP’s parts for use in genuine Cummins brand products.
Instructions & Tech Info
Reviews For AFE 46-40012
Overall Rating
/5
3 Reviews
Rating Snapshot
1
2
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0
Verified Buyer
great upgrade
HIGGINS (MCCALLA AL) | April 23rd, 2026
My manifold had busted. Ordered this one. knew it would be better, but the quality and performance still surprised me a little. Great upgrade.
Verified Buyer
Manifold
Ricardo (Alaska) | March 23rd, 2025
The manifold is good, the only problem I had the boxes arrived tore apart missing bolts.
Verified Buyer
Good so far.
Mal Paso (Big Sur, Ca) | June 4th, 2023
The fly cutting of the 2 flats for the turbo nuts wasn't deep enough and the nuts hung on the edge of the cut. A little touch up with an angle grinder fixed them but that's why 4 stars. The manifold comes with 4 turbo studs, 4 nuts, 2 brass plugs for the EGT ports and a heater pipe bracket kit. Installation was smooth, plenty of room for the manifold bolts and the overall quality is very good. Only 2 miles on it, will see how it lasts. I would have ordered the stainless version which has great reviews but it was out of stock. I had reservations about 2 and 3 piece manifolds. The original 1 piece Cummins lasted 19 years but seems to be discontinued. All I got, Good Luck!
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Frequently Asked Questions
Can this be installed on a stock truck? No other fabricating??
The AFE 46-40012 BladeRunner Ductile Iron Exhaust Manifold can be used on a completely stock truck as a replacement of your factory manifold. http://afepower.com/catalog/46-40012/...
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Specifications For AFE 46-40012
MPN
46-40012
SKU
AFE46-40012
GTIN
802959461372
ID
20873
Manufacturer Name
AFE
Shipping Weight
24.00 lb.
Shipping Length
6 in.
Shipping Width
26 in.
Shipping Height
6 in.
Fuel Type
Diesel
E-Code
2
EO Number
d-550-32
Manufacturer Warranty*
2 Year
Prop 65
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
Internal
L2R0
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