The best exhaust manifold pressure sensor depends on your truck’s model year, engine, and original part number. For 2019–2022 Ram 2500–5500 trucks with a 6.7L Cummins diesel, the first four options list fitment for that application; A-Premium also specifies a three-terminal blade connector. The fifth sensor is listed for earlier Ram applications and several Cummins engines, so it is not a direct match for the newer trucks based on the supplied fitment details.
| Product | Best suited for | Fitment or part-number detail |
|---|---|---|
| Compatible 2019–2022 Ram sensor | Buyers replacing either listed OE number | 68444078AA or 68444078AB |
| A-Premium sensor | Buyers checking connector specifications | Three blade terminals; 68444078AA |
| WLDHHDP sensor | Buyers matching both reference numbers | 68444078AA / 68444078AB |
| Ram replacement sensor | Buyers seeking a stated 68444078AA replacement | 2019–2022 Ram 6.7L Cummins |
| 4928594 pressure sensor | Buyers with listed earlier Ram or Cummins applications | 4928594 and other listed numbers |
Compatible 2019–2022 Ram Exhaust Pressure Sensor
This sensor is listed for 2019–2022 Ram 2500, 3500, 4500, and 5500 trucks equipped with a 6.7L Cummins diesel engine. It replaces OE numbers 68444078AA and 68444078AB. The listing describes it as a direct replacement and says it uses high-temperature-resistant materials.
Best for: Owners of the specified Ram and engine combination whose existing sensor matches one of the listed OE numbers. It was selected because it names both replacement numbers and all four Ram truck series.
Check before buying: Verify year, engine, and original part number. The listing’s broad replacement description does not remove the need to confirm exact vehicle fitment.
A-Premium Three-Terminal Ram Sensor
A-Premium lists this direct-replacement sensor for 2019–2022 Ram 2500, 3500, 4500, and 5500 models with a 6.7L inline-six diesel engine. Its specifications identify three terminals, blade-style terminal type, and reference number 68444078AA. The package quantity is one.
Best for: Buyers who want connector details stated in the listing, in addition to vehicle fitment. The terminal count and type offer useful details to compare with the original sensor.
Check before buying: The listed reference number is 68444078AA; confirm that it matches the number required for your truck before ordering.
WLDHHDP Sensor With Two Reference Numbers
This product lists part numbers 68444078AA and 68444078AB. Its stated application is 2019–2022 Ram 2500, 3500, 4500, and 5500 trucks with a Cummins 6.7L diesel engine. The listing also describes it as compatible with a MAP sensor.
Best for: Buyers whose original sensor number is either 68444078AA or 68444078AB and whose truck matches the listed years and engine. It was selected for its explicit cross-reference and vehicle range.
Check before buying: The supplied details do not include connector specifications. Compare the replacement with the original part and confirm fitment using vehicle details.
Ram Sensor Listed As 68444078AA Replacement
This sensor is listed for 2019–2022 Ram 2500, 3500, 4500, and 5500 trucks with a 6.7L Cummins engine. The provided part number is 68444078AA. The listing describes its materials as high quality and resistant to high temperatures.
Best for: Owners who have confirmed that 68444078AA is the correct number for their truck. It provides a concise fitment range and a specific replacement number.
Check before buying: The product details list 68444078AA, not 68444078AB. Do not assume the two numbers are interchangeable without checking the truck’s parts information.
4928594 Sensor For Earlier Cummins Applications
This exhaust gas pressure sensor lists Cummins ISX, ISM, ISC, ISL, ISB, and ISF 2.8 and 3.8 engines. Its Ram fitment details cover 2007–2010 Dodge Ram 2500 and 3500 6.7L models and 2011–2018 Ram 2500 and 3500 6.7L models. Listed replacement numbers include 4928594, 4087989, and 4903479, among others.
Best for: Buyers whose application and original number match the earlier Ram or Cummins fitment information. It was selected as an option for a different model-year range, not as a substitute for the 2019–2022 sensors above.
Check before buying: The listed Ram years stop at 2018. Avoid this option for a 2019–2022 Ram unless vehicle-specific parts information confirms a match.
Buying Guide
How do you confirm the right sensor?
Start with the truck’s year, model, and engine, then compare the original sensor’s part number with the replacement listing. For the newer Ram products here, the stated application is 2019–2022 Ram 2500, 3500, 4500, or 5500 with a 6.7L Cummins diesel. A shared engine size alone does not confirm that a part fits.
Should the connector match?
Yes. Check the connector shape and terminal arrangement against the original part. A-Premium provides a three-terminal blade specification; the other newer-Ram listings do not provide the same connector details in the supplied information. Ask the seller or consult vehicle-specific parts information if the details are unclear.
How should you compare replacement numbers?
Use exact part-number matching as a key check. Some listings name both 68444078AA and 68444078AB, while others list only 68444078AA. Do not assume that similar-looking numbers or a general “direct replacement” description establish interchangeability for your specific vehicle.
Can a sensor for an older Ram fit a newer one?
Not based on the fitment information provided here. The 4928594 listing identifies Ram applications through 2018, while the other four products specify 2019–2022 applications. Treat these as distinct fitment groups unless an authoritative vehicle-specific parts reference confirms otherwise.
Frequently Asked Questions
What is an exhaust manifold pressure sensor?
It is a vehicle sensor identified by its exhaust-pressure application. The supplied product listings focus on replacement fitment and part-number matching rather than describing diagnostic procedures.
Which listed sensors fit a 2019–2022 Ram 6.7L Cummins?
The first four products list 2019–2022 Ram 2500, 3500, 4500, and 5500 applications with a 6.7L Cummins engine. Confirm the exact part number and connector before purchase.
Does the 4928594 sensor fit a 2020 Ram 2500?
The listing does not state fitment for a 2020 Ram 2500. Its stated Ram range ends in 2018, so verify with vehicle-specific parts information rather than relying on the engine description alone.
What should I check before ordering?
Confirm the vehicle year, model, engine, OE part number, and connector details. If any of these do not match the product listing, verify fitment before buying.