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  • The ADJUSTER by Attitude, In-Cab Fuel Controller (formerly Attitude Adjuster)
  • The ADJUSTER by Attitude, In-Cab Fuel Controller (formerly Attitude Adjuster)
  • The ADJUSTER by Attitude, In-Cab Fuel Controller (formerly Attitude Adjuster)

The ADJUSTER by Attitude, In-Cab Fuel Controller (formerly Attitude Adjuster)

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Product Description

The ADJUSTER by Attitude, In-cab Fuel Controller (formerly Attitude Adjuster)

Got a 12-valve? 


Got an engine with a P-7100 Pump? 


You need The ADJUSTER 


From optimum economy to max power on the fly from inside the cab! 

The ADJUSTER by Attitude (pat pend) (formerly Attitude Adjuster) gives you full control of your 12-valve Cummins or any other engine equipped with a Bosch P7100 injection pump (4cyl, 6cyl, 8cyl) from inside the cab.  It's a precise numeric-control-manufactured system with accurate command of range and fuel output.


<<<<<<<<   AWESOME---Does it all!   >>>>>>>>>>

➢  Adds Power: 10+% increase.

➢  Increased Fuel Economy: 10-25% increases in mpg.

➢  Lower EGT's: 200-250 degrees in the mid ranges.

➢  More Boost: 3-10 lbs.

➢  Longer Pump Life: great for highly modified or large pumps. Can defuel to under 150 cc’s.

➢  Full rack travel

➢  Controls Smoke

➢  Easy Installation: 30-60 minutes


Using the 3” in-cab controller, you have full precise adjustability to tune from optimum economy to maximum power.  It is adjustable for 8 dial settings and mid settings (16 total) through the fuel spectrum with only one rotation of the knob.  All of this is done while retaining the AFC housing (boost advance) which is crucial for drivability.  

With the finite adjustment of The ADJUSTER by Attitude, you will be able to accurately tune your engine without leaving your seat!  Selecting a position on the knob will reproduce the exact fuel setting every time providing efficient functions with fully repeatable and consistent operation.

Because of its adjustability, The ADJUSTER by Attitude will work on every Bosch P7100 injection pump with no modification required; it has application for improving the performance of trucks from stock to highly modified.  The ADJUSTER is flow-bench and dyno proven.  The ADJUSTER housing also comes pre-machined for the shut-off solenoid bracket on ’94-’98 Dodge Rams. 

The ADJUSTER is a drop-in part.  It’s a direct replacement of the cam plate and does not require removal of the injection pump. Installation is as simple as swapping a fuel plate.  
Finally there’s a way to control your fueling from the cab.  This product is 100% mechanical. 

Included Items:

•  The ADJUSTER by Attitude housing with a #0 fuel profile (additional profiles can be purchased separately)

•  New AFC housing arm machined for full fuel advance

•  Control cable

•  In-cab control box

•  All necessary hardware

Suggested supporting mods:

APP #1007 Billet Rack Cap.  APP’s Rack Cap is manufactured 3mm deeper which provides an additional 20hp.   How?   It allows full 21mm rack travel.

APP #1006 Billet delivery .093 valve holders. The #1006 flows more fuel. It’s also a great way to dress up your injection pump.

Optional Fueling Profiles:  The ADJUSTER is shipped with a #0 profile which is appropriate for most uses, but the following profiles have been precisely machined and are available for very specific applications:




APP #1205 (#5) Recommended for 13mm pumps and all heavily modified trucks

APP #1206 (#6) Recommended for most street trucks with modifications

APP #1208 (#8) Recommended for heavy towing

APP #1210 (#10) Recommended for 913 pumps and all pumps with notched-style plungers, and for stock or lightly modified trucks

Product Videos

Benefits of The ADJUSTER Full In-Cab Fueling Control 12v Cummins 01:19

The ADJUSTER gives you full fueling control for your 12v Cummins or any engine equipped with a P7100 injection pump (4cyl, 6cyl, 8cyl), in-cab and on the fly. http://www.attitudeperformanceproducts.com/parts/the-adjuster-by-attitude

  • Benefits of Th...
    The ADJUSTER gives you full fueling control for your 12v Cummi...

Other Details

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Product Reviews


    Posted by Nicholas Bisnett on Aug 17th 2017

    I purchased the Adjuster, Rack Cap and the Towing profile fuel plate. I initially installed just the adjuster and tried it out. I put it on my totally stock 1995 dually. It was cool and woke the cummins right up. I then installed the Rack cap to check it out. My 1/8 mile times got faster and validated it was indeed moving the plate farther. I subsequently installed the towing profile to finish out my trials and the fuel came on faster in the mid range. Thus far I like the product and recommend it over simply grinding or other plates due to the adjustability. I drive around on lower settings and my fuel mileage has not suffered. I turn it up when towing my 40 foot 5th wheel and it helps. I generally like it

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