Cummins ISB 6.7L, QSB 6.7L Fuel Pressure Relief Control Valve 2010-2024: OEM 4398005
CUMMINS ISB 6.7L, QSB 6.7L FUEL PRESSURE RELIEF CONTROL VALVE 2010-2024: OEM 4398005
ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY
WARRANTY
1M MILES OR 1 YEAR
PRODUCT DESCRIPTION
This is a New, Tamerx Fuel Pressure Relief Control Valve, Tamerx part number 4398005TX ( OEM Part Number 4398005 ).This part is primarily made for a Cummins ISB 6.7L, QSB 6.7L, production years 2010-2024, and comes with a One Million Miles or One Year Warranty.
OEM NUMBERS
| Primary OEM | 4398005 |
| Additional OEM | 4398005 |
ADDITIONAL DETAILS
| CONDITION | New |
| UPC / Barcode | 00840490557963 |
| 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 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, 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 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"
Manage fuel system pressure with this Cummins ISB 6.7L, QSB 6.7L Fuel Pressure Relief Control Valve for 2010–2024 applications. OEM 4398005 helps regulate excess fuel pressure for stable fuel system operation. A reliable replacement for worn, leaking, or faulty valves in compatible Cummins ISB and QSB 6.7L engines.
FITMENT CHART
| YEAR | MAKE | ENGINE(S) | ||||
|---|---|---|---|---|---|---|
| 2010 | Cummins | ISB 6.7L | QSB 6.7L | |||
| 2011 | Cummins | ISB 6.7L | QSB 6.7L | |||
| 2012 | Cummins | ISB 6.7L | QSB 6.7L | |||
| 2013 | Cummins | ISB 6.7L | QSB 6.7L | |||
| 2014 | Cummins | ISB 6.7L | QSB 6.7L | |||
| 2015 | Cummins | ISB 6.7L | QSB 6.7L | |||
| 2016 | Cummins | ISB 6.7L | QSB 6.7L | |||
| 2017 | Cummins | ISB 6.7L | QSB 6.7L | |||
| 2018 | Cummins | ISB 6.7L | QSB 6.7L | |||
| 2019 | Cummins | ISB 6.7L | QSB 6.7L | |||
| 2020 | Cummins | ISB 6.7L | QSB 6.7L | |||
| 2021 | Cummins | ISB 6.7L | QSB 6.7L | |||
| 2022 | Cummins | ISB 6.7L | QSB 6.7L | |||
| 2023 | Cummins | ISB 6.7L | QSB 6.7L | |||
| 2024 | Cummins | ISB 6.7L | QSB 6.7L | |||
PEOPLE ALSO ASKS | BLOG(S)
High-pressure common-rail systems need a controlled way to respond when fuel pressure rises beyond the intended range. The Cummins ISB 6.7L, QSB 6.7L Fuel Pressure Relief Control Valve 2010-2024: OEM 4398005 provides this safeguard by opening under excessive pressure conditions and helping the fuel system return toward a controlled operating range.
- OEM 4398005 is intended for compatible 2010-2024 Cummins ISB 6.7L and QSB 6.7L diesel applications.
- Pressure-sensitive valve operation allows the component to react when fuel rail pressure reaches its specified relief point.
- Controlled pressure release helps prevent excessive pressure from remaining trapped within the common-rail system.
- Precision internal valve components provide consistent movement between sealed and relief positions.
- Secure seating surface helps contain high-pressure fuel when pressure relief is not required.
- High-strength metal construction is suited for continuous exposure to pressurized diesel fuel.
- Compact configuration allows the valve to integrate directly with compatible high-pressure fuel-system components.
- Application-specific threads and dimensions help provide proper installation and sealing on compatible Cummins 6.7L systems.
The Cummins ISB 6.7L and QSB 6.7L Fuel Pressure Relief Control Valve OEM 4398005 provides a dedicated mechanical response to excessive fuel rail pressure. For customers looking for a Cummins 6.7L fuel pressure relief valve, ISB fuel rail relief valve, QSB fuel pressure valve, common rail pressure relief valve, or OEM 4398005 replacement, this component offers the correct configuration for compatible 2010-2024 applications.
Loss of engine power can occur when a leaking Fuel Pressure Relief Control Valve prevents the fuel rail from maintaining the pressure required for proper injection. If too much fuel escapes through the valve, actual rail pressure may fall below the level commanded by the ECM, particularly during acceleration or under load.
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Low fuel rail pressure: Internal leakage can prevent the system from maintaining sufficient pressure as fuel demand increases.
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Reduced acceleration: Insufficient rail pressure may cause sluggish response when additional engine power is required.
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Power loss under load: Symptoms can become more noticeable during heavy acceleration or other high-demand operating conditions.
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Hard starting: A leaking valve may prevent rail pressure from building quickly enough during engine cranking.
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Rough engine operation: Unstable fuel pressure can contribute to hesitation, uneven idling, or inconsistent combustion.
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Fuel pressure fault codes: The ECM may detect a difference between commanded and actual pressure and store related diagnostic trouble codes.
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Possible engine derate: Significant or persistent fuel pressure faults may cause the ECM to limit engine output to protect the fuel system and engine.
A leaking Fuel Pressure Relief Control Valve can contribute to loss of engine power, but it should not be diagnosed from symptoms alone. Comparing commanded and actual rail pressure while checking the fuel pump, injectors, filters, pressure sensor, and supply system can help identify the true cause of the pressure loss.
The installation, sealing surfaces, fuel supply, high-pressure pump, injectors, rail pressure sensor, and other pressure-control components should be inspected to identify the source of the pressure loss.
No. Hard starting can also result from insufficient fuel supply, excessive injector return, high-pressure pump problems, air in the fuel system, or inaccurate pressure sensor readings.
Both conditions can prevent the rail from reaching commanded pressure. Diagnostic testing is necessary to determine whether pressure is being lost through the relief valve or is not being generated adequately by the pump.
Proper installation helps ensure the valve seals correctly and prevents damage to the valve or fuel rail. The applicable Cummins service procedure and torque specification should be followed.
Cummins Fuel Pressure Relief Control Valves
