



89-02 5.9L Cummins Rear Cam Expansion Plug
Available Options
$10.26
- Part Number: 3900687
- Est. Ship Time: Usually Ships By Next Business Day

SSL SECURE
TRANSACTION

AUTHENTIC
PRODUCTS

GUARANTEED PREMIUM
QUALITY

A+ Rating
More from this brand
Starting From $187.56
Rebuilding your engine? We recommend replacing this plug any time you have your engine out. It installs behind the engine adapter plate over the back of the cam shaft.
Opitonal oring seal above. (Part number, 3926047)
Cummins part number: 3900687

Rebuilding your engine? We recommend replacing this plug any time you have your engine out. It installs behind the engine adapter plate over the back ..
$10.26
DISCONTINUEDBlock heater for ISB & QSBIncludes 6ft Cord 750 W/120V
This fits 97.5-2002 Dodge 5.9L Cummins equipped trucks with the thread-i..
$0.00
PYROMETER W/ COLOR BAND
Isspro part number: R11031
Range
0-2000
ISSPRO'S EV² gauges have microprocessor controlled stepper motor movements..
$237.59
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..
$93.24
Discontinued (Updated 3/17/2025)
4000 RPM Governor Spring Kit (4K GSK)
The Peak Diesel Governor Spring Kit is a special combination of springs a..
$0.00
Cummins valve cover with oil filler cap.A must for those that run an adjustable pump gear or have installed a breather in place of the oil filler cap ..
$94.02
This is a complete lower end gasket set for the Dodge 89-98 5.9L 12 Valve Cummins engine. OEM gaskets are also available, however recently t..
$165.57
Complete upper cylinder head gasket set for the Dodge 89-98 5.9L 12 Valve Cummins engine.
This gasket set includes the standard PRESS ON valv..
$127.36
5.9L 12 & 24 Valve Cummins 6BT Oil Pump
This pump will bolt right into your 12 or 24 valve Cummins engine and is a higher volume pump than the ..
$172.11
Includes Cummins part numbers:
1x 39297921x 4932124
Includes #6 & #7 in the picture only.
This will only fit 89-97 blocks with the single turbo oil..
$80.15
Front seal/o-ring for the P7100 injection pump found on 94-98 Dodge 5.9L 12 Valve Cummins trucks.
Some people may call this a mounting gasket as we..
$22.88
94-98 12 Valve Cummins Gear Housing Dowel Pin
This can be used in place of the infamous "killer dowel pin". We still recommend a retainer tab to avoi..
$17.49
This plug will increase your rack travel for more fueling on your P7100 pump.
AFC modifications are required to get the most out of this plug.
T..
$14.95
Set of 12 5.9L 12 Valve Dodge Cummins Valve Seals
These are NOT the updated later-year 12 Valve Top-Hat Style Seals.
Cummins: 3921640..
$113.09
Cummins: 3284623..
$37.11
Cummins OEM Vacuum Pump Seal Kit For Your 1991.5-2002 Dodge Ram 2500/3500 Cummins Turbo Diesel
This kit includes everything needed to reseal that p..
$26.60
Using this lower connecting rod bearing directly from Cummins will retain factory fit and function. This is an OE replacement and installs directly in..
$34.57
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 ..
$187.56
Cummins part numbers:
Thermostat: 3928499
Seal: 3925466
Seal: 3927305 ..
$91.26
Includes thermostat only, with seal ring.
Image for reference only.
Cummins part number: 5292742..
$65.11
Genuine Cummins 5.9L Engine overhaul kit includes:
Pistons
Bushing clips
Upper engine gasket set
Lower engine gasket set
Rod bearings
..
$3,531.23
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..
$291.70
Cummins front crank main seal. Includes seal driver installation ring.
Cummins 3804899..
$84.65
Includes head gasket only. (Thick, dual hole gasket)
Cummins: 3958645..
$273.06
Includes head gasket only. (Thin, single hole gasket)
Cummins: 3958644..
$258.00
Cummins rocker box bolt set for 03-18 5.9L and 6.7L Cummins applications
Includes
3900678 (2)
3903096 (5)
Cummins: 2x3900678/5x39..
$45.91
Using this upper connecting rod bearing directly from Cummins will retain factory fit and function. This is an OE replacement and installs directly in..
$31.87
Options for standard/upgraded parts are available above
Genuine Cummins 5.9L Engine overhaul kit includes:
Pistons w/Rings
Bushing clip..
$6,133.38
Direct fit OEM cummins rocker box for 05-18 Dodge 5.9L And 6.7L Cummins applications
Cummins: 3974981..
$319.44
06-24 Ram Cummins valve cover bolt rubber seal isolator, washer.6 seals required for installation.Part Number: 3973853..
$17.61
6.7L Cummins Turbocharger VGT Actuator Harness Adapter allows the use of a 13-18 turbo actuator to be used on 07.5-12 Cummins trucks.Cummins: 534..
$66.14
Fits 1992-2000 GM 6.2L/6.5L Diesel 2500/35001989-2002 Dodge Ram 5.9L Cummins Mahle Original Turbocharger GasketsMAHLE Original turbocharger..
$7.39
Fits: 1989-2002 Dodge 5.9L Cummins (Oil Cooler To Block)Install the McBee M-4932124 Engine Oil Cooler Gasket (Oil Cooler To Block) to your 1989-2..
$12.85
Fits: 1989-2002 Dodge 5.9L Cummins (Oil Cooler To Block)Install the Cummins 4932124 Engine Oil Cooler Gasket (Oil Cooler To Block) to your 1989-2..
$50.36
Fits: 1989-2002 Dodge 5.9L Cummins
Reseal the intake manifold in your 1989-2002 Dodge 5.9L Diesel with the Mahle MS12435 Intake Manifold Gasket Set..
$12.59
Fits: 1989-2002 Dodge Ram 5.9L Cummins MAHLE Tappet Cover Gasket SetDirect Replacement High Quality ConstructionEngine Push Rod Gasket SetMA..
$18.07
The Alliant Intake Grid Heater Gasket pair for your 1989-2007 Dodge 5.9L Cummins is a direct replacement for your factory gasket. These are used at th..
$17.31
Cummins front crank main seal. Includes seal driver installation ring.
Cummins 3937111
Supercedes 3904353...
$61.16
Fits: 1989-2007 Dodge Ram 5.9L Cummins
This Mahle Intake Heater Grid Gasket is a OEM replacement for your Dodge 5.9L Cummins. Manufactured Fr..
$4.31
Crank shaft grooved? This is the only way to get it to seal up correctly. Includes sleeve you install to cover the crank shaft, allowing for a tight s..
$185.83
CNH front crank main seal for the 1989-2018 Dodge Ram 5.9L & 6.7L Cummins diesel trucks.
DOES NOT include seal driver installation ring.
Th..
$20.05
TS6000 Cummins Rear Crankshaft Seal Tool Set Quickly & easily replace that leaky rear crankshaft seal on your 1989-current Cummins 5.9L or 6...
$212.40
Direct fit rear main seal with repair sleeve for 89-18 5.9L/ 6.7L Cummins. This seal is designed from high quality materials and meets or exceeds fact..
$48.30
Use this seal to replace the damaged or worn out rear main seal on the 89-18 Dodge Ram 5.9L/ 6.7L Cummins application. Features an OEM constructi..
$65.54
QK6000 Cummins Rear Crankshaft Seal and Tool Kit Quickly & easily replace that leaky rear crankshaft seal on your 1989-Current Dodge or Ram C..
$234.99
Fits: 1989-2018 Dodge Ram Cummins 5.9L, 6.7L
Get an OE quality replacement water pump gasket for your 1989-2018 Dodge 5.9L or 6.7L Cummins wh..
$1.44