
Haisley 14MM 3.9L 4BT Cummins Main Stud Kit
$380.66
- Part Number: 14MMMAIN STUDS-4BT
- Est. Ship Time: Usually Ships By Next Business Day

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Main studs
Important note: Please verify which size your stock main bolts are before ordering, these come in a 14mm or 12mm sizes. |

These extra heavy duty XL 14mm XHD studs are made from H-11 and have a glass bead finish, 220 ksi min.
Formerly Made By A1 Technologies
KIT INCLUD..
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89-97 Dodge 5.9L Cummins 14mm Main Studs
STUDS vs. BOLTS
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Heavy Duty High Performance Push Rods, Set of 1289-98 5.9L 12 Valve Cummins Diesel
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Main studs
14mm x 2.00
4340 material
Black oxide finish
Hex broach for easy installation
HD washers and 12 pt hardened nuts
Instructions
Sta..
$380.66
Set of eight factory OEM Cummins rod bolts. For Cummins 3.9L 4BT Diesels.
Cummins part number: 3900919..
$113.03
Fits Cummins 4BT 4 Cylinder engine, includes o-ring to seal against the block and stainless hardware. Breather hole can be added. This fits most of th..
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Kit includes:
4 of 4891178 - BUSHING, WRIST PIN
4 of 3802160 - KIT,ENGINE PISTON
8 of 3969562 - BEARING,CON ROD
4089648 - SET,UPPER GASKET
3802..
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Backordered with No ETA (Updated on 3/5/2025)
12mm Std Head stud kit for the 3.9L 4BT Cummins Turbo Diesel
Recommended f..
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Cummins 12MM Head Stud Bottoming Tap
We recommend you bottom-tap your engine block head-stud threads when installing 12mm ARP or A1 head studs to e..
$26.46
This 3200 rpm spring fits all VE Rotary Injection pumps on Cummins 3.9L 4BT from 1989 to 1993. The spring will allow the injection pump to fuel all th..
$19.31
The only manifold available to give a substantial gain in power and fuel economy.
Not cheap cast and not weak tubular. This is the finest ful..
$695.00
Contact to Confirm Availability
Includes standard thickness AFTERMARKET 3.9L Cummins head gasket modified for the use of fire rings.
Requires t..
$202.48
3.9L Cummins 4BT FUEL PIN
The Dynomite Diesel Fuel Pin gives your 89-93 3.9L Cummins 4BT 15-30 more horsepower. The Power Pin fits all 3.9L 4BT Cumm..
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07.5-22 Dodge 6.7L Cummins Diesel New .120 High Flow Fuel Connector Tubes
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Recommended if you have a modified or dual cp3 s..
$357.94
Front core plug plate is for use on a 89-02 block for high performance applications.
Will not work if belt or stock fan hub is being used...
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High Performance Delivery Valves
Fits P7100 injection pumps found on 94-98 Dodge Cummins and other applications. Custom cut delivery valvesAdditional..
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Dodge 5.9L Cummins Diesel Bronze Cam Thrust Plate, also known as a cam retainer (not cam GEAR retainer though)For 89+ 3.9L/5.9L/6.7L Cummins Blocks.Ma..
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HMR 12mm Head stud kit for the 94-98 Dodge 5.9L 12 Valve Cummins Turbo Diesel
These s..
$486.62
Contact to Confirm Availability!
Includes standard thickness AFTERMARKET 12 valve Cummins gasket modified for the use of fire rings.
Requires t..
$267.90
This includes:
Overflow valve banjo bolt adapter
Braided Line Adapter
Braided Line (runs from Ppump return to factory tee location)
Tee Fi..
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Includes standard thickness multi-layer steel 6.7L Cummins gasket modified for the use of fire rings.
Requires the machining of grooves into the cy..
$333.84
Set of 6 Rocker Arm Studs 1989-1998 Dodge Cummins Diesel
Torque these to 27 Ft/Lbs.
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This is the oil feed line you will need if you have a VP44 truck and are installing a P7100 Injection pump.
This line re-locates the oil feed into th..
$183.98
Includes standard thickness 24 valve AFTERMARKET head gasket modified for the use of fire rings.
This kit will also work on 2003-2007 Dodge 5.9L Cu..
$255.00
OEM Forged Cummins Rods, fits 89-2007 5.9L Cummins (exchange basis)
NOT CRACKED CAP RODS
Heat Treated
Stress Relieved
Machined
I..
$1,280.74
For Engine Drop Down: 03-07 CR and 6.7CR on Backorder with No ETA
For Main Stud Size Drop Down: Both on Backorder with No ETA (Updated on 3/5..
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Set of 12 Rocker Arm Studs 98.5+ Dodge 5.9L & 6.7L Cummins Diesel
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Dodge Cummins 4BT 3.9L diesel 4-cylinder, ARP2000 Main stud kitMain stud kits help eliminate cap walk and protect the threads in your engine block. St..
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Fits: 3.9L 4BT CumminsGator Fasteners Heavy Duty Main Studs are design to hold the bottom end of your Cummins 3.9L 4BT together whether you're buildin..
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One piece billet valve cover fits 4BT Cummins 8 valve. Designed for aftermarket injection lines run either over top or around front and back of cover...
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One piece billet valve cover fits 4BT Cummins 8 valve. Notched to fit over stock injection lines. We also have non-notched valve covers for engines wi..
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The Power Driven Diesel 4BT Cummins 7 mm Delivery Valves are hot street or race delivery valves. They provide 90 cc over stock and will add power to y..
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The new manufactured aftermarket Power Driven Diesel Stage 1 CNC-Ported 8v Cylinder Head for 4BT 3.9L has reinforced ribs throughout, strengthened wal..
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If you're looking to add some power and more fuel to your 4BT then this injector set from Power Driven Diesel is a perfect fit!
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If you're looking for upper engine gaskets for your 4BT .010 Over Interstate Mcbee has what you're looking for!
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Fits: 1989-1998 3.9L 4BT Cummins
Tis Clevite P-Series Main Bearing Set (Standard) is a high-quality engine bearing set for your 1989-1998 3.9L 4BT ..
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Fits: 1989-1998 3.9L 4BT CumminsSwitch out the damage or worn out gasket in your 3.9L Diesel 4BT with the Cometic Valve Cover Gasket Set. With a ..
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