Chatham Fuel Injection  

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 Indentifying HEUI Injectors
Help - HEUI Iindentification Trying to decide which Powerstroke/Navistar/CAT HEUI injector is needed for a given application can be very confusing.  In all cases each injector is available under several part numbers.  The best way is to have a look at your old injector(s)!  All of these injectors are have a part number etched on the solenoid.  This solenoid usually has several numbers on it, as well as in some cases a 2 character letter code.  The letter codes for Ford engines are AA, AB and AD, and AE.  Most letter codes on Navistar engines start with a B, with the exception of the T444 which uses  an AC coded injector.  Cat injectors do NOT use a letter code, but normally have a part number on the solenoid.  If you can determine the letter code, then doing a search on the word Powerstroke or Navistar and the letter code will usually give the desired results.  For example:  If you injector is codes AB then doing a search on "Powerstroke AB" (without the quotes) should find the correct injector in our database.  If searching for a BD injector use the search term "Navistar BD" (without the quotes).  For Cat injectors, you will need to search by part number.  Searching by part number will also work for Navistar & Ford injectors.

BY the way ... the other number on the solenoid is the serial number.

Some early Ford Powerstroke injectors did not have a letter code, and had black solenoids.  These are usually always AA injectors.  The same applies to early Navistar injectors, and these are usually AC injectors.

Some Ford Powerstroke engines may also have a different injector (either an AD or in some cases an AE) in #8 cylinder.  Our advice is to put the same part number in as what came out!

Cat 3412/3408 and 3126A injectors have a vertically mounted solenoid.  These also have the p
art number stamped on the solenoid, although it may be difficult to read without removing the injector from the engine.

Cat C7/C9 injectors are also identified by a part number, although not always on the solenoid.  The top of the injector has a small metal plate with 4 screws holding the solenoid onto the injector body.  The part number as well as the 4 digit calibration code is normally located on this plate.  If there is no part number information on this plate, it can then be found on the exposed part of the solenoid, usually near the wire connector.

 Help File Links
 Locating Part Numbers
Product/Service Spotlight

Looking for Sprinter common rail parts?  We have high pressure pumps and injectors in stock for most models!

Part numbers include:

We can also test your units to verify that this is what you need.

We have Dodge, Cummins 5.9/6.7 and  Duramax high pressure pumps, and common rail injectors in stock! All years, all models!

Part numbers include:

Complete Duramax application information is located here!

Dodge / Cummins 5.9 application information is located here!

We have the parts and equipment to service dual spring injectors such as used by VW TDI and Landrover.  Most TDI injectors are available from stock!

High performance TDI injectors available.  Click  here for details!

Click here to see why setting both springs on these injectors is important.

Whats New @
We have added a CAPTCHA to all our input forms due to the amount of spam we are receiving.  This helps to insure that only real people and not automated web bots are requesting information!

Many pages on this site now have a printer icon that can be used to display a 'printer friendly' page.  This icon is normally located at the end of the page
We have  available from stock most VP44 electronic pumps for Dodge & Cummins mid-range applications.

See our online catalog for further details.
New Products
Available Now!
Custom designed add on filter kits for both Dodge and Duramax applications.   The factory filters on these applications are lacking at best, and this is both the best and easiest way to avoid costly injection system repairs.

See our online catalog for further details.

When it comes to fuel additives, we stock only a single brand!

Save 10% on case lots when purchasing Stanadyne Additives!