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Dodge Ram 1984-1989 4BT Cummins Diesel Parts

Welcome to our 3.9L Cummins 4BT section. We invite you to take a look at our selection of injection lines, injectors, fuel pins and governor springs, main bolt sets, gaskets including fire ring gasket kits, and much more! We offer exhaust manifolds from Steed Speed, valve springs, push rods and cams from Hamilton Cams, as well as main stud kits from Haisley Machine.

If you don't see what you are looking for, please call us at 715-254-1833 and we will help you find it or take advantage of our Live Chat feature and talk directly to one of our associates.

Brand: Automotive Racing Products Part Number: 247-5404
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. Studs made from 8740 chromoly steel and heat treated in house to 190,00 PSI tensile strength rating. Kits come with hardened washers and high quali..
$232.82

Brand: Gator Fasteners Part Number: MSK394BT
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 building a tow rig, race truck or just a daily driver.These fasteners have a much higher strength and will not stretch like the factory bolts will. The Gator..
$194.99

Brand: CTA Manufacturing Corp. Part Number: 8612
This tool is a must have for anyone who regularly works on Cummins diesel trucks. Be it a 1989 VE Pump Cummins or a 2014 6.7L Cummins, these engines love to leak oil out of the front crank seal. The best solution is to get a new crank seal with a "speedy sleeve". Also called a wear sleeve, the sleev..
$84.47

Brand: Fleetguard Part Number: LF9028
Limited Availability!!Introducing the Fleetguard LF9028:It has a standard full flow oil filter, in addition to a bypass style (sub2-micron) filter in one housing. Basically, you could say it is the equivalent of a "bypass oil filtration system, without the extra hoses". To read more about this..
$40.41

Brand: Cummins Part Number: 3938157
Dodge 3.9L 4BT & 5.9L 6BT Cummins Oil Pickup Tube Gasket Number 9 in the picture. Cummins part number 3938157...
$3.29

Brand: Bosch Part Number: 3200VESPG
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 the way to 3200 rpm if you have enough fuel. In other words a stock motor with no fueling mods may not spin all the way to 3200. Using this spring will ..
$25.00

Brand: PacBrake Part Number: 8x60LBSPGS
8x 60LB Valve Springs for Cummins 3.9L 4BT..
$672.00

Brand: Steed Speed Part Number: 4BTT3
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 fully CNC machined billet turbo manifold on the planet.Easily outperforms every other manifold available.1 : Highest power2 : Best economy3 : Lowest EGTs4 : ..
$675.00

Part Number: VS50396R x4
Set of 4 Fel-Pro Valve Cover Gaskets for the 3.9L 4BT Cummins Diesels. We have found that these gaskets DO NOT swell up and leak like the Cummins gaskets.They seal up time after time if you remove and install your valve covers frequently...
$23.99

Brand: Scheid Diesel Part Number: 4BTINJLINESET
Please allow 2-3 day lead time before item ships. Clamps not included unless selected above. (4 clamps in package if you select the option) Image for reference only. (But is pretty close ;) from 6BT 12V) * .078 and .084 can only be ordered in mild steel...
$288.96

Brand: Dynomite Diesel Part Number: DDP.PIN
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 Cummins engines with the mechanical VE rotary injection pump. Installation time is approximately 15 minutes and can be done with simple hand tools.Click h..
$90.00

Part Number: PDP12VCOVER
Pure Diesel Power Exclusive FindWe have found another supplier for a Cummins quality valve cover, cheaper, and they are actually available!Includes: 3.9L & 5.9L Cummins plain rocker/valve cover. Includes:1x Valve Cover 1x Bolt grommet (does NOT include bolt unless selected)The stock valve c..
$69.95

Brand: Automotive Racing Products Part Number: 247-4206
Studs made of proprietary ARP 2000 material in Santa Paula, CARated at 220,000 psi tensile strength Ample clamping force prevents cylinder heads from lifting Threads rolled after heat treatment for optimum fatigue strength Centerless ground to assure perfect concentricity Broached stud ends ..
$368.85

Brand: Interstate-McBee Part Number: 4x M-3927154
Single Layer Exhaust Manifold Gasket Set, Set of 4 Fits 3.9L 4BT Cummins Diesels McBee part number: M-3927154 Picture for representation only. ..
$5.86

Brand: Bosch Part Number: 1460503304
Is your truck or equipment extremely low on power, and now drive like a strong 7.3L Powerstroke? If so, there's a possibility the diaphragm in your AFC (air-fuel control) housing is torn. It doesn't happen very often, but it is possible. To verify, you can remove the AFC from your truck and apply 15..
$12.31

Brand: Contagious Diesel Performance Part Number: CON4BTOILSQU
Sick of snapping off the cheap plastic OE oil squirters? Try these heavy duty BILLET oil squirters from Contagious diesel. Guaranteed to add AT LEAST -15hp per squirter (just kidding) But seriously, you need these. *NOTE: Please use a brass punch or softer tool to install to prevent mushrooming of..
$0.00

Brand: Interstate-McBee Part Number: M-3938162
This is designed for 4BT 3.9L Oil Pan.   McBee part number: M-3938162...
$14.42

Brand: Cummins Part Number: 3938162
This is a genuine Cummins gasket and is designed for 4BT 3.9L Oil Pan.   Cummins part number: 3938162...
$48.15

Brand: Keating Machine Part Number: 062413-1
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 the roller lifters being used, but if you are using roller lifters be sure to check the clearance between them and this cover before installation.These ..
$225.00

Brand: Fleetguard Part Number: LF16087
Fleetguard Oil Filter for Cummins Fleetguard part number: LF16087, LF1608700 (Cummins: 1220922)...
$10.76

Brand: Cummins Part Number: 10x3927948
Please verify whether your 4BT has 12mm or 14mm main bolts before ordering. 10x Cummins part number: 3927948..
$66.93

Brand: Cummins Part Number: 4BTMan
This is a full workshop manual, for Cummins 4BT engines. Cummins Manual number: 3666017 - 91 AND NEWER 3810206 - PRIOR TO 91 Please select above..
$106.00

Brand: Pure Diesel Power Part Number: PDPMANSTUDS-4BT
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 to keep the gaskets in place when using standard bolts. We offer two versions, a corrosion resistant alloy steel stud and nut, or a stainless stud and..
$26.99

Brand: Cummins Part Number: 3927633
4BT Injector Return Line. Only includes number 6 from image. Cummins part number: 3927633..
$151.55

Brand: PacBrake Part Number: HP10007
Easily access your engine's oil filter by installing Pacbrake's oil filtration relocation kit. A remote oil filter is most beneficial for those who have twin turbos, as the installation of the second turbo denies access to the stock filter location. Pacbrake has designed this high quality filtration..
$262.85

HMR 12MM 3.9L 4BT Cummins Cylinder Head Stud Kit
Backordered
Brand: Haisley Machine Part Number: 4BTA112MM
Backordered with No ETA   **Updated on 11/02/2022**12mm Std Head stud kit for the 3.9L 4BT Cummins Turbo Diesel  Recommended for applications of 80 psi boost and under with single charger and no drugs. The head bolt holes in the cummins blocks are not tapped to the bottom. &nb..
$582.75

Brand: Automotive Racing Products Part Number: 247-6304
ARP 2000 - Angled cap rod - 4BT Cummins Rod Bolts ARP part number: 247-6304..
$122.95

Brand: Interstate-McBee Part Number: OH38021xx
Part CS4068 is on Backorder til January 27th 2023   **Updated on 10/13/2022**Part HS4068 is on Backorder til October 26th  **Updated on 10/13/2022**Interstate Mcbee 4BT Cummins Overhaul Rebuild Kit4 pistons Connecting rod bearing set Main bearing set  Upper gasket set Lo..
$569.00

Brand: Interstate-McBee Part Number: M-3283333
Fits 3.9L 4BT Cummins   McBee part number: M-3283333..
$30.85

Brand: Contagious Diesel Performance Part Number: CD 5x.012 4BT
Set of 4 Contagious Diesel 5x.012 injectors with SAC nozzles for the 3.9L 4BT VE Pump Cummins Turbo Diesel equipped with the VE Rotary Injection Pump or P7100 Inline Injection pump. These will give you an appromixate 60HP gain if your pump is tuned correctly. These injectors have a 7mm nozzle, we c..
$0.00

Brand: Cummins Part Number: 10x3904217
Please verify whether your 4BT has 12mm or 14mm main bolts before ordering. 10x Cummins part number: 3904217..
$494.13

Brand: Haisley Machine Part Number: 4btfireringkit
Contact to Confirm Availability!Includes standard thickness AFTERMARKET 3.9L Cummins head gasket modified for the use of fire rings. Requires the machining of grooves into the cylinder head or engine block for use. 6 mild steel rings included. Detailed instructions on machine guidelines are inc..
$208.47

Brand: Interstate-McBee Part Number: 4x M-4891178
NOTE: NEW STYLE CUMMINS BEARINGS NOW HAVE A K GROOVE ON THE OUTSIDE OF THE BEARING THAT DRAWS OIL INTO THE CENTER. McBee part number: M-4891178..
$31.00

Brand: Cummins Part Number: 4891178 x4
Includes 4 of #2 in second picture ONLY! NOTE: NEW STYLE CUMMINS BEARINGS NOW HAVE A K GROOVE ON THE OUTSIDE OF THE BEARING THAT DRAWS OIL INTO THE CENTER. 4x Cummins: 4891178..
$66.29

Brand: Cummins Part Number: 4089648
This upper gasket kit should fit any 3.9L 4BT Cummins equipped with the rotary injection pump. Please enter your ESN above so we can ensure proper fitment before shipping.Cummins part number: 4089648..
$279.27

Brand: Bosch Part Number: 4x 2433462014
1 Set of 4, 15/16 size nuts, used to hold the 3.9L Injectors into the cylinder head. These are the same nuts used on 94-98 5.9L 12 Valve Cummins injectors. These generally do not go bad and are re-usable. Bosch: 2433462014..
$101.80

Brand: Scheid Diesel Part Number: 4BTINJLINE
Please allow 2-3 day lead time before item ships. Image for reference only. (But is pretty close ;) from 6BT 12V) * .078 and .084 can only be ordered in mild steel...
$90.59