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 Tech Tips - Navistar HEUI Injector Gaskets
Tech Tips - HEUI Gasket Change

Navistar engines equipped with HEUI injectors have undergone a design change that results in changes to the injector compression gasket.  During the model year 2000, beginning with engine serial number 1194039 the injector sleeve material in the head was changed to stainless steel, as shown in the photo on the left.  With the change in the injector sleeve, comes a change in compression gasket material.  The typical "copper" gasket has been changed to a "stainless steel" gasket.  It is easy to distinguish between the 2 gasket materials.   This change applies to injectors with BI, BJ, BP and BN body codes.  Application information can be found here.

All BP and BN injectors provided by us will include the new stainless steel gasket, since these injectors were never produced to use a copper gasket.  All BI and BJ injectors will be shipped with both the copper and the stainless steel gasket, neither of which will be installed on the injector.  It is up to the installer to install the proper gasket before installing the injector in the engine.  Use a 8mm hollow drift punch to carefully tap the gasket over the nozzle tip until it bottoms on the nozzle retaining nut.

Note:  It may be possible that rebuilt heads used with other injectors are also affected.  For this reason it is a good idea to determine if the head in question has stainless steel injector sleeves.  If it does, use the new stainless steel gasket.  It is also available as a separate item part number 1830317C1 in our online catalog.

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Product/Service Spotlight



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

Part numbers include:
0-445-110-106
0-445-110-163


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:
0-445-120-017
0-445-120-030
97303762
 97208073
0-445-120-027
0-445-120-008
97303657
97208074
0-445-020-039
0-986-437-304
0-445-120-032
0-445-120-018
0-986-435-506
0-986-435-504
3949619
3968158
3972814
3964009
3972814NX
3964009NX
3972887NX
5086594AA
5135790AB
R135790AB



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 @
chathamfuel.on.ca
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
News
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!