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$546.62
- Part Number: 3931744
- Est. Ship Time: Usually Ships By Next Business Day

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Rear dump Exhaust Manifold for a 12 Valve Cummins.
This manifold features a turbo flange that dumps between cylinders 4 & 5. The front 4 cylinders dump into the frontmost volute of the T3 flange, and the back two cylinders dump into the rear volute. This is commonly seen on RV's, buses, and is frequently used on Ford trucks with Cummins conversions.
All Exhaust Manifold Bolts or Gaskets are sold separately.
Option for Bolts is 12 x 3944593
Option for Gaskets is 6 x 3929881
Please call in with your Engine Serial Number before ordering online so we can verify this fits your engine/application.
Cummins: 3931744
Old Cummins Part Number: 3922728

12-60lb Intake & Exhaust Valve Springs 89-98 12 Valve Dodge 5.9L Cummins
The seat pressure on these springs is ~150bs at the installed height o..
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Cummins Part number 3802356
Picture for representation only! ..
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Rear dump Exhaust Manifold for a 12 Valve Cummins.
This manifold features a turbo flange that dumps between cylinders 4 & 5. The fron..
$546.62
Single Layer Exhaust Manifold Gasket Set, Set of 4
Fits 3.9L 4BT Cummins Diesels
McBee part number: M-3927154
Picture for representation only..
$6.47
Single Layer Exhaust Manifold Gasket Set, Set of 6
Fits 1989 to 1998 5.9L 12V Cummins Diesels
Cummins: 3927154
Picture for representation only. ..
$63.86
Set of 6 Fel-Pro Valve Cover Gaskets for the 89-98 Dodge 5.9L 12 Valve Cummins Diesels.
Includes 6 valve cover bolt sealing washers as well.
We ..
$35.00
Discontinued (Updated 4/23/2024)
Please see 62001010007 for alternative
Delivery Valve Socket
For Installing or Removing the delivery va..
$0.00
62001010007 Backordered until the Beginning of July (Updated 5/7/25)
Timing tool kit for a Dodge Cummins with the inline P7100 fuel pump, otherwise..
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Multilayer Steel Exhaust Manifold Gasket
Will fit Cummins 5.9L 12 Valve engines.
Sold individually, 6 needed for entire engine.
Source ..
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94-07 Dodge 5.9L Cummins Stock Exhaust Manifold Turbo Studs & Nuts (4 nuts, 4 studs)
Part numbers:
3971421 - Discontinued, New Part Number: 51..
$104.11
1989-2002 5.9L Cummins Diesel Turbo to Manifold T3 Gasket
Cummins Part number: 3901356
Picture may not represent actual gasket, it is for illust..
$8.78
Fits 89-93 Dodge 5.9L Cummins Diesel Trucks
This fuel filter stud is used to delete fuel heater on 1st gen Cummins (89-93)
Part number: J925954
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89-93 Dodge 1st Gen 5.9L Cummins DieselKiller Dowel Pin Repair Kit (KDP)
Includes:
Crank Seal
Dowel Pin Tab
TUBE OF RTV
*This pin is designed..
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Cummins 180° Thermostat Kit part number 3802968.
PLEASE READ AND UNDERSTAND BULLETIN BEFORE PURCHASING Thermostat Technical Service Bulletin - pdf do..
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Discontinued (Updated 2/23/2024)
1989-2012 Dodge 5.9L Cummins Diesel Water Pump
All new housing & internals
Built to meet or exceed OE spec..
$0.00
Includes:
Standard Thickness Head Gasket
Intake Gasket (long rectangular)
Exhaust Manifold Gaskets
Valve Cover Gasket
Valve Seals (new style va..
$611.78
If you really want to re-use your stock head bolts, you should really use this Genuine Cummins head bolt stretch gauge to make sure they are within Cu..
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RV Turbo Feed Line
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Using this lower connecting rod bearing directly from Cummins will retain factory fit and function. This is an OE replacement and installs directly in..
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First generation (1989-1993 Dodge 5.9L VE Cummins) mechanical fuel lift pump.
Lift pump only. Don't forget to get gaskets! This pump supplies 3-5PSI ..
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Cummins part numbers:
Thermostat: 3928499
Seal: 3925466
Seal: 3927305 ..
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Includes thermostat only, with seal ring.
Image for reference only.
Cummins part number: 5292742..
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Genuine Cummins 5.9L Engine overhaul kit includes:
Pistons
Bushing clips
Upper engine gasket set
Lower engine gasket set
Rod bearings
..
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2003-2005 Dodge 5.9L Cummins Valve Cover
This valve cover DOES NOT have CCV breathers.
May fit other applications including some 6.7L Cummins QS..
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Cummins front crank main seal. Includes seal driver installation ring.
Cummins 3804899..
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Includes head gasket only. (Thick, dual hole gasket)
Cummins: 3958645..
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Includes head gasket only. (Thin, single hole gasket)
Cummins: 3958644..
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Cummins rocker box bolt set for 03-18 5.9L and 6.7L Cummins applications
Includes
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3903096 (5)
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Using this upper connecting rod bearing directly from Cummins will retain factory fit and function. This is an OE replacement and installs directly in..
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Options for standard/upgraded parts are available above
Genuine Cummins 5.9L Engine overhaul kit includes:
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Direct fit OEM cummins rocker box for 05-18 Dodge 5.9L And 6.7L Cummins applications
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06-24 Ram Cummins valve cover bolt rubber seal isolator, washer.6 seals required for installation.Part Number: 3973853..
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Installing a new exhaust manifold, or simply removing a stock or aftermarket manifold to change gaskets? If so, you'll find that it is a real hassle t..
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2003-2007 Dodge 5.9L Common Rail Cummins, 2-Piece Exhaust Manifold, T3, NON-Wastegated, Comes Assembled with Black High Temperature Coating and Pre-T..
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ATS Pulse Flow Exhaust Manifold Kit Fits 2003-2007 5.9L Cummins 2-Pc T3 With Gaskets Premium Hardware
Since ATS released the first Pulse Flow Manif..
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ATS Pulse Flow Exhaust Manifold Kit Fits 2003-2007 5.9L Cummins 2-Pc T3 With Turbo Flange Hardware
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BD Power Two Piece Exhaust Manifold - 03-07 Dodge 5.9L Cummins
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T3 Exhaust Manifold for the 3rd Gen 03-07 Dodge 5.9 Cummins
OEM replacement part for MOPAR PN 5135788AC
Does not include turbo to manifold gasket, a..
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Eliminate the costly exhaust manifold cracks prevalent in the factory exhaust manifold. The aFe Bladerunner exhaust manifold is constructed out ..
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This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. ..
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Features:
Outflows the factory exhaust manifold by 49%, improving performance and throttle response
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07.5-18 Dodge 6.7L Cummins ATS 2 Piece Pulse Flow Exhaust Manifold Kit W/ Gaskets & Premium Hardware
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