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Injectors & Related Items
Water Meth Inj Kits
Thoroughbred Diesel has been your online performance headquarters since 2002. We know how to get the most performance out of your pickup truck and offer all of today's most popular diesel performance products.
Gaskets & Seals
Starters & Alternators
Thoroughbred Diesel offers OEM and diesel stock parts for your diesel pickup truck. At Thoroughbred Diesel, you can
buy stock diesel replacement parts such as injectors, fuel pumps, ball joints,
track bars, turbos, and more for your diesel truck.
Floor Mats and Liners
Seats & Covers
Spare Tire Carriers
Make heads turn with custom truck accessories from Thoroughbred Diesel.
Gooseneck & Fifth Wheel
Hitch Pins & Hitch Locks
Shackles & Tow Hooks
Diesel Tips Shirts
Show your support with a Thoroughbred Diesel t-shirt, sweatshirt, or sticker decal.
Thoroughbred Sku #: FLDFSR3963994-CRE
Terms & Conditions for Cores
Many stock replacement parts such as turbos, injectors, injection pumps, and
high pressure oil pumps have a core charge that is associated with the new replacement
part. You must return the old part to receive a refund on the core charge.
If you plan on returning your core you have two options.
Thoroughbred Diesel offers defer the upfront core charge when purchasing via
credit card payment.
OPTION 1: You can accept the core charge, which means you
will be charged for the part AND the core at time of purchase. You still have
the option to send it back, and if you do, the core will be refunded back on
the card used, presuming the core meets core criteria and the core is returned
within 21 days from the time your order is received. If you return your core
after 21 days you may refer to the Core Charge Timeline below as to how you
will be refunded.
OPTION 2: You can defer the core charge. If you defer, you will not be charged for the core at the time of purchase. You will have 21 days from the time your order is received to send the core back. If the core is not received within the 21 days, your credit card will be charged for the core amount on your order. If you return your core after 21 days, you may refer to the Core Charge Timeline below as to how you will be refunded. Core deferral (Pay Core Charge Later) is limited to payment by credit card only. ***When using PayPal or Affirm as your method of payment “Core Deferral (Pay Core Charge Later)” is not available. The core must be paid at time of purchase. ***
Core Charge Timeline
Core Return Procedure
2003 - 2003 Dodge Ram 2500
2003 - 2003 Dodge Ram 3500
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Now offering the Cummins 5.9L ECU for 5.9L diesel Cummins trucks. These are
thoroughly remanufactured and fully programmed for your specific vehicle. Please
choose your vehicle application from the order options to the left. All units
go through tri-temperature testing and quality inspections. Units are programmed
for specific year models, type of transmission and emission standards. If you
have any troubles with choosing of application please give us a call on our
toll free number and we will get you the correct module. Units are programmed
and tested by order and have a typical build time of 3-5 days before shipment.
Cummins Part # 3963994
Important Ordering Info Needed When Purchasing!
Units are flashed with programming for specific year and transmission type.
Some vehicles have VERY specific programming so when ordering we need as much
information as possible to ensure operation.
The Valve Cover Reference Number is located on the driver side of the valve
cover and starts with a "53" and ends with 2 letters as shown in the
For vehicles with Sentry Key Immobilizer Modules (SKIM) - There is a possibility
that the unit will have codes appear for the immobilizer circuit. You will need
to allow for 3 drive cycles for this to go away (learning procedure for SKIM
Immobilizer) only on units with SKIM. Any clear DTC will interrupt the learning
procedure and the unit will no longer receive SKIM info. The unit will need
to be reflashed at this point. This information will be printed on a yellow
or red sheet of paper and included in the box.
You will need to provide the following information before your ECM can ship. For online orders, Thoroughbred Diesel will contact you to get this truck information below. :