SKU: 52161468087

DEF Sensor Emulator for Cummins

Sale price$292.50 Regular price$325.00
Save 10%

Pay in installments of $81.25 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 29 - Sep 3

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

DEF Sensor Emulator for CumminsDiesel Exhaust Fluid or DEF sensor emulator is set to 75 95% fluid level(depends on size of the DEF tank), temperature set at ambient air temperature, and fluid quality at 32. 5%. Electrical connection is a DT 4 pin deutsch plug commonly used on Shaw Development DEF sensor heads. How to use DEF Sensor Emulator: Locate the DEF head The first step is to locate the DEF head in your Power Pack. Most Power Packs have the DEF head situated at the front

Diesel Exhaust Fluid or DEF sensor emulator is set to 75 - 95% fluid level(depends on size of the DEF tank), temperature set at ambient air temperature, and fluid quality at 32.5%. Electrical connection is a DT 4 pin deutsch plug commonly used on Shaw Development DEF sensor heads.

How to use DEF Sensor Emulator:


Locate the DEF head

  • The first step is to locate the DEF head in your Power Pack. Most Power Packs have the DEF head situated at the front passenger side. Be sure to locate the DEF head since you will need to work on it. The DEF head is located at the top of the DEF tank.

Remove the cable

  • You will need to remove the cable that runs from the top of the DEF head. Be sure to remove the side that has the DT4 adaptor.

Plug in the simulator

  • You will need to plug in the simulator and you can zip tie it near the area. This will emulate the DEF head and should be back up and running after a couple of minutes.
  • Note that plugging in the emulator is just a temporary solution. You will need to get to a professional as soon as you can. The emulator can help you if you are stranded. Once you get to an expert, you will need to replace the DEF head or get it repaired.

History of DEF sensors

DEF Sensor Issues

The DEF head are inserted into the top of the DEF tank. The head consists of the DEF pickup tube, the engine coolant heater tube and the DEF sensor. The sensor was originally designed to sense the level of DEF in the tank but in 2016 the EPA mandated that new sensor designs were required that also detected the concentration level of DEF to ensure that owners weren’t diluting their DEF with water and rendering the emissions system ineffective. These sensors showed up mainly in the 2017. Unfortunately, while the original 2016 and prior year sensors were trouble-free, these new sensors began failing at a rapid rate. These sensors were made by Shaw and had issues where the electronic circuit board had failed, which was determined to be heat related due to the close proximity of the engine’s exhaust system as well as the fact that hot engine coolant was constantly circulating through the DEF head.

When the sensor failed the engine would shut down, or goes into limp mode, typically displaying one of the following fault codes showing abnormal update rates:

            SPN 3364 FMI 9 (Cummins Fault Code 3868) –DEF quality

            SPN 1761 FMI 9 (Cummins Fault Code 4677) – DEF tank level

            SPN 3031 FMI 9 (Cummins Fault Code 4572) – DEF tank temperature

These codes were designed to detect weak DEF, low DEF level or DEF that had been overheated in the tank. If the sensor chip fails any one of these fault codes may appear, even though there is nothing wrong with the DEF itself. But the faulty sensor will derate and eventually shut down your engine.

Important information

Your dashboard DEF Gauge will no longer be accurate!!  You MUST manually monitor and continue to keep your DEF tank filled with fresh DEF fluid until you get a permanent repair.  It is highly recommended that you keep accurate records and check your DEF level at regular intervals.

Legal Disclaimer 

NOTICE:
DEF Emulator’s are not designed or intended to be used as an automotive CAT, DPF or EGR delete kit, or an aftermarket defeat device which violates the Clean Air Act.Title II. Any of our products used in this manner are void from our warranty, will not be supported and the practice is expressly discouraged. If you have any questions on emissions regulations, please check with your local state laws and regulations.

Armotech LLC., its employees, dealers and/or business associates will not be held liable for any reason and the customer assumes all responsibility for the proper use of our products. 

It is illegal to modify or tamper with a vehicle’s emissions system in an effort to defeat the DEF system.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 52161468087

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.0 ★★★★★
Based on 28 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
G
Verified Purchase
Glory Mendoza
San Leandro, US
★★★★★ 5
My AmazonFinds/ SPF 50 Sunscreen
Size: 12 Fl Oz (Pack of 1), Style: Sport Lotion SPF 50, Size: 12 Fl Oz (Pack of 1), Style: Sport Lotion SPF 50
I’ve been using this Banana Boat Sport SPF 50 sunscreen and I really like it. It goes on smoothly and absorbs quickly without feeling too greasy or heavy on the skin. I also like that it’s water and sweat resistant, which makes it perfect for outdoor activities or beach days. It provides strong sun protection and I feel confident using it when I’m out in the sun for long periods. The scent is light and not overpowering. Overall, it’s a reliable sunscreen that I would definitely buy again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
D
Verified Purchase
D. Henderson
Grantham, US
★★★★★ 5
Very good sunscreen, advice from a pale-skinned person
Size: 12 Fl Oz (Pack of 1), Style: Sport Lotion SPF 50
I'm Scottish by descent, and so is my skin. This stuff works well, is pleasant, not greasy and seems to hang on despite kiteboarding, surfing, cycling, whatever. Pleasant smell, good dispenser.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
S
Verified Purchase
Steven R.
Louisville, US
★★★★★ 4
Good product, the pump bottle could be better
Size: 12 Fl Oz (Pack of 1), Style: Sport Lotion SPF 50, Size: 12 Fl Oz (Pack of 1), Style: Sport Lotion SPF 50
This is a usual product for me, I like and trust it. It has little smell, spreads on easily and can be washed off without too much trouble. The pump is nice while it works but I take away one star because it leaves about 20% of the product in the bottom of the bottle when the "cone of depression" gets lower than the bottom of the tube that brings the product up. After the pump can no longer effectively pump the product up, I cut the top of the bottle off and dip the rest out with my fingers. I'm not sure what they can do to make it work better but it's inconvenient as it is.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 3, 2025
J
Verified Purchase
J Antonio Cordoba
Lexington, US
★★★★★ 5
Excellent protection for workouts and hot days! ☀️🏃‍♂️
Size: 8 Fl Oz (Pack of 1), Style: Sport Lotion SPF 50
This sunscreen is fantastic for daily use and outdoor activities. The SPF 50 protection is highly effective; I’ve used it under intense sunlight and haven't gotten burned at all. What I love the most is that it actually resists sweat and doesn't run into your eyes when you are working out. It doesn't leave an overly greasy feel, and the 8oz size lasts a long time. It is a reliable product that is always in my bag. 100% recommended purchase!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
Z
Verified Purchase
Zack Willis
Lexington, US
★★★★★ 5
Very helpful
Size: 8 Fl Oz (Pack of 1), Style: Sport Lotion SPF 50
This sunscreen is a fantastic value, especially since I managed to grab it while it was on sale. It applies smoothly without feeling overly greasy and provides solid protection for outdoor activities. It is definitely worth picking up if you can find a good deal on it, as it does exactly what it is supposed to do. I will be keeping an eye out for another sale so I can stock up for the rest of the summer.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026

recommand products