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426.99
Part #: ARP247-4202
ARP Diesel Head Stud Kit 247-4202
1998.5-2018 Dodge 5.9L & 6.7L Cummins 24V
★★★★★
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Description
To overcome head gasket failures that can occur in diesel engines employed in truck and RV applications, industry leader ARP has introduced extra heavy-duty head studs for the popular Ford, Dodge and GM powerplants. These ARP studs are rated at 220,000 psi tensile strength, and provide the clamping force required to keep cylinder heads from lifting due to higher combustion pressures.
The studs are manufactured in ARP's Santa Paula, CA plant from proprietary ARP 2000 material, with threads rolled after heat-treat to provide optimum fatigue strength. They are centerless ground to assure perfect concentricity. The ends of the studs are broached to facilitate easy installation. This feature also enables the cylinder head to be removed in tight quarters. Also included in each kit are heat-treated, chrome-moly steel 12-point nuts and parallel-ground washers. They are black oxide finished for extra durability.
The studs are manufactured in ARP's Santa Paula, CA plant from proprietary ARP 2000 material, with threads rolled after heat-treat to provide optimum fatigue strength. They are centerless ground to assure perfect concentricity. The ends of the studs are broached to facilitate easy installation. This feature also enables the cylinder head to be removed in tight quarters. Also included in each kit are heat-treated, chrome-moly steel 12-point nuts and parallel-ground washers. They are black oxide finished for extra durability.
Features:
- ARP 2000 Material
- 220,000 PSI Tensile Strength
- Chrome-moly Steel, 12-Point Nuts
- Parallel-Ground Washers
Specifications
- MFG. Number 247-4202
- Manufacturer Name ARP
- Shipping Weight 9.00 lb.
- Shipping Length 11 in.
- Shipping Width 8 in.
- Shipping Height 3 in.
- Fuel Type Diesel
- UPC 672036026844
-
Prop 65
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
Reviews
★★★★★
4.0/5 Stars out of 2 Reviews
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Kurt Abrahamson (Black Hawk, SD) | January 18th, 2018
I installed these head studs about a year ago with a turbo upgrade on my late 04. I had about 225000 miles of the truck at time and did them with out removing the head. The instructions lay everything out step by step if you are replacing the head gasket at same time, if you are completely removing head I recommend having it check by a machine shop for straightness. As said in the other review you will need to order more ultra torque lube the little packet that comes with the studs will only get you trough about four of them. If not removing the head pay attention to how far the stud has screwed into the head. Had a couple that the hole filled in with some engine oil and cause a slight hydraulic effect, which if you take your time threading in you will get it to bottom out. I have had no issues with head gasket since install and have worked the truck hard. (order# 526521)
451Mopar (Denver, CO) | February 15th, 2009
We know ARP makes great fastners, but 26-studs and only one packet of ARP Lube? Plan on ordering extra lube unless your really stingy applying it.Also the instructions should point out that the rocker box needs clearancing for the rear center stud nut, and the longer studs go to the exhaust side of the head. Also a good idea to tap the blocks holes with a bottoming tap before installing the studs. If replacing with the heads on, a 6" long 12mm bottoming tap should be used.
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Questions and Answers
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Most Popular Questions
Do you have Install Instructions?
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Answer
Click Here for the ARP Install Instructions
Note: It will be necessary to machine the lower rocker arm cover at the No. 24 bolt hole location in the torque sequence to facilitate installation of the lower rocker arm cover
Will these head bolts work on a 2014 6.7L Cummins?
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Answer
The ARP studs are listed on the manufacturers site for the Dodge Cummins 5.9L/6.7L 24V '98 - Present.
Can you change one at a time?
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Answer
Yes it can be done. You must maintain stock torque on the cylinder head until all stock bolts have been replaced with ARP studs one at a time. After this is done, you can then follow the torque sequence to being bringing the stud up to their final torque. (This is done in small increments.)
What is the maximum torque?? 125 seems very little
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Answer
125 ft/lbs is the max recommended by ARP - In actual practice many installers go to 135 ft/lbs
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