Cummins QSB 6.7L Sensor Pressure 2010-2018: OEM 4921517
CUMMINS QSB 6.7L SENSOR PRESSURE 2010-2018: OEM 4921517
ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY
WARRANTY
1M MILES OR 1 YEAR
PRODUCT DESCRIPTION
This is a New, Tamerx Sensor Pressure, Tamerx part number 4921517TX ( OEM Part Number 4921517 ).This part is primarily made for a Cummins QSB 6.7L, production years 2010-2018, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here
OEM NUMBERS
| Primary OEM | 4921517 |
| Additional OEM | 4921517 |
ADDITIONAL DETAILS
| CONDITION | New |
| UPC / Barcode | |
| WEIGHT | 1.00 LBS |
SHIPPING OPTIONS
Ship Weight : 1.00 LBS
UPS Ground, 2nd Day Air, Next Day Air
SHIPPING POLICY
Tamerx Diesel Products ships via UPS Ground. Next day air shipping can be arranged for a reasonable price of anywhere from $50.00 - $100.00 depending on the weight of the product and your location. We will do everything we can to make sure that you get the service you need. We understand how important it is to receive your order as quickly as possible.
In most cases Tamerx Diesel Products only needs one address, as long as your product is shipping to the same location as your billing information. In order to eliminate credit card fraud, your billing information must match the credit card you provide.
The terms, conditions, and details of our warranty vary from product to product. Specific warranty details can be found below.
Tamerx Diesel Products provides a replacement warranty on all of our parts. The duration and mileage limitations of the warranty vary by product and are specified on the product's detail page/item listing.
Please note that the warranty covers replacement of the part and the cost of shipping the replacement part to you only. It does not cover any shop, labor, towing, or any similar or related costs. This is not a "money back guarantee".
If you experience a problem with your part or it is not functioning properly, the correct warranty procedure is to call us at (510) 257-1777 (8:00 AM - 5:00 PM ET Monday through Friday). Be sure to have your order number and/or other relevant order information ready so we can easily locate your order and resolve your issue as quickly as possible. From that point, we will review with you any troubleshooting steps that may need to be taken and other areas or systems that can be checked to rule out external problems contributing to your part's issue. If a replacement is determined to be necessary, we will then arrange for your replacement part to ship out ASAP and issue any necessary return shipping labels and/or documents.
As is the case for the majority of the diesel products sold on Tamerx Diesel Products, your part's warranty is active as soon as you install it. In some other cases, warranty activation is contingent upon you sending us your core (i.e., your old part). Tamerx Diesel Products will provide you a return shipping label for parts that have a warranty with a core return condition. When we have received your core return, the part's warranty coverage begins. We reserve the right to void the product warranty if your core is not received within the allotted time, or if it isn't received at all. If the warranty for the diesel part you are purchasing has a core return requirement, it will be clearly noted on the product detail page/item listing.
What is a Core Charge?
A core charge (also called "core deposit") is similar to the deposit you might pay for a can or bottle of soda and is a standard requirement in the auto parts industry. For example, in many states, to promote recycling, you pay a deposit when you purchase a can of soda and receive your deposit back when you return the empty can. Many automotive parts have a core charge, or core price, that works in essentially the same way as a soda can deposit.
30 Day Core Charge Hold
You authorize Tamerx Diesel Products, to hold your credit card for the specified core charge amount and that you agree to return your core with 30 days of receiving the purchased part. When we have received your core return, the hold is released and the core charge payment is canceled.
"This Product Doesn't Have a Core"
Created to provide accurate system pressure feedback, the OEM 4921517 Pressure Sensor fits Cummins QSB 6.7L engines produced from 2010 to 2018. This sensor supplies the engine control module with essential real-time data, helping it manage fueling and operational adjustments under varying load conditions. Its OEM-grade construction ensures proper fitment, stable signal clarity, and durability against heat, vibration, and fluid exposure. When indicators such as inconsistent readings, warning lights, or pressure-related diagnostic codes appear, this sensor serves as a dependable replacement option. Built with robust materials and precise engineering, it supports consistent performance across all compatible QSB 6.7L applications within this model range.
FITMENT CHART
| YEAR | MAKE | ENGINE(S) | ||||
|---|---|---|---|---|---|---|
| 2010 | Cummins | QSB 6.7L | ||||
| 2011 | Cummins | QSB 6.7L | ||||
| 2012 | Cummins | QSB 6.7L | ||||
| 2013 | Cummins | QSB 6.7L | ||||
| 2014 | Cummins | QSB 6.7L | ||||
| 2015 | Cummins | QSB 6.7L | ||||
| 2016 | Cummins | QSB 6.7L | ||||
| 2017 | Cummins | QSB 6.7L | ||||
| 2018 | Cummins | QSB 6.7L | ||||
PEOPLE ALSO ASKS | BLOG(S)
The Cummins QSB 6.7L Pressure Sensor (OEM 4921517) is a key monitoring component used to measure pressure within the engine’s fuel or air management system, depending on the specific configuration. This sensor provides real-time pressure data to the engine control module so the engine can adjust fuel delivery, air intake, and overall combustion conditions accurately.
What This Sensor Does
The pressure sensor detects changes in system pressure and converts them into an electrical signal. The engine control module uses this signal to make important operational decisions, such as adjusting fuel flow, controlling turbocharger operation, or regulating emissions functions.
Key Functions Include:
- Monitoring fuel or air pressure to ensure the system is operating correctly
- Providing accurate data to the engine control module for optimized combustion
- Preventing engine damage by detecting abnormal pressure levels
- Supporting emissions control by ensuring proper air-fuel balance
- Helping maintain smooth operation and consistent power delivery
Without a functioning pressure sensor, the engine cannot accurately regulate fuel and air inputs. This can lead to rough operation, increased emissions, poor fuel usage, starting issues, or even engine protection shutdowns. The OEM 4921517 sensor ensures the Cummins QSB 6.7L engine stays reliable, efficient, and compliant.
The Cummins QSB 6.7L pressure sensor (OEM 4921517) plays an essential role in monitoring fuel rail pressure and sending accurate data to the engine control module. When this sensor starts to fail, the engine may struggle to maintain proper fueling, leading to warning lights and drivability issues.
Common symptoms often include erratic idling, hard starts, and fault codes related to fuel pressure. Diagnosing a failing sensor early helps prevent unnecessary downtime.
Steps to diagnose a faulty 4921517 pressure sensor:
- Scan for trouble codes using a diagnostic tool. Look specifically for fuel rail pressure deviations.
- Review live data to check if pressure readings fluctuate unexpectedly.
- Inspect wiring and connectors for corrosion, loose pins, or damaged insulation.
- Compare commanded vs. actual pressure—large inconsistencies point to sensor failure.
- Verify fuel supply components, since clogged filters or weak pumps can mimic sensor issues.
If the sensor consistently reports incorrect values or fails to communicate with the control module, replacement is typically the most reliable fix.
Proper diagnostics ensure the QSB 6.7L runs correctly and avoids more extensive system problems.
It provides real-time pressure feedback that the ECM uses to regulate fueling and system controls.
Yes, debris or moisture can obstruct the sensing port and cause incorrect values.
It should be checked when troubleshooting inconsistent readings or system pressure imbalances.
Correct torque ensures a reliable seal and prevents damage to the sensor housing.
Cummins Sensor Pressures
