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Detroit DD8 High Pressure Fuel Rail : OEM DDE A9360781645

DETROIT DD8 HIGH PRESSURE FUEL RAIL : OEM DDE A9360781645

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$1,350.00

CORE CHARGE:

$250.00
iCORE DISCLAIMER: The CORE charge is a 30 day hold and will not be processed as long as the CORE is returned within 30 days. If you do not have a CORE or fail to return the CORE within 30 days, the CORE charge hold amount will be processed at that time.

AVAILABILITY IN STOCK
OEM NUMBERDDE A9360781645
PART TYPEHigh Pressure Fuel Rail
BRANDDrive On Diesel
ENGINE MAKEDetroit
ENGINE TYPEDD8
YEAR
PART NUMBER9360781645RM

PRODUCT DESCRIPTION

This is a Remanufactured Drive On Diesel High Pressure Fuel Rail, Drive On Diesel part number 9360781645RM ( OEM Part Number DDE A9360781645 ). All parts are proudly remanufactured in the U.S.A. to the highest of OEM standards, and improvements are often applied to the original design in the remanufacturing process. This part is primarily made for a Detroit DD8, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEMDDE A9360781645
Additional OEMDDE A9360781645, EA9360781145

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode
WEIGHT15.00 LBS

SHIPPING OPTIONS

Ship Weight : 15.00 LBS
UPS Ground, 2nd Day Air, Next Day Air

SHIPPING POLICY

Drive On Diesel 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 Drive On Diesel 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.

Drive On Diesel 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 Drive On Diesel, 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). Drive On Diesel 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 Drive On Diesel, 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.

The customer, or parts buyer, is responsible for any shipping costs associated with core returns unless otherwise specified in the product listing/detail page. Drive On Diesel offers prepaid UPS shipping labels (SKU numbers UPS-CR1 and UPS-CR2) for use in returning your core that are available for purchase on our website during your shopping/order process.

The shipping label you will need to use for the core return is dependent upon what part you are purchasing. UPS-CR1 is good for cores weighing up to 20 pounds. UPS-CR2 is appropriate for shipping cores weighing 21 pounds or more. You must include enough information with the core return that clearly identifies it as a.) a Core Return, and b.) contains enough information we can use to clearly associate the core return with your order. Including a copy of the invoice or packing slip that came with the original shipment, clearly marked "Core Return", is ideal. Alternately, you can include a note marked as "Core Return" that includes your order number, full name and address, and phone number or other contact information. Failure to include this information with your returned core will most likely delay any due core credit being issued and/or delay any applicable warranty activation. Core returns need to be for the exact part purchased and cannot be damaged. Substituting another part in place of the part you have purchased is not acceptable.

All fluids must be drained.

If you have purchased a set or a parts package, you will need to return cores for all components of the set. For example, if you have purchaed a high pressure oil pump with an IPR valve, you will need to return both HPOP and IPR valve cores to receive proper credit. If you have purchased an EGR cooler/EGR valve package, your core return must consist of an EGR cooler core and an EGR valve core, or core credit will not be given.

Core Charges are often mandated by state legislature, and, as such, the actual core charge and taxes on the charge may vary depending on the state in which you buy your part. The Drive On Diesel core charge presented to you online today with your item is representative of the most common core charge.


PEOPLE ALSO ASKS | BLOG(S)

A high-pressure fuel rail plays a crucial role in maintaining consistent fuel delivery for diesel engines. In the Detroit DD8 engine, the OEM DDE A9360781645 high pressure fuel rail is engineered to regulate and distribute fuel to the injectors with precise timing and pressure. When this component begins to fail, it can lead to noticeable engine issues that require immediate attention.

Signs Your Detroit DD8 Fuel Rail May Be Failing:

  • Hard Starting or No Start
    A lack of fuel pressure can make it difficult or impossible for the engine to start.

  • Rough Idling or Stalling
    Irregular fuel delivery can cause unstable engine operation or frequent shutdowns.

  • Loss of Power Under Load
    The engine may struggle to maintain power, especially during acceleration or heavy-duty tasks.

  • Fuel Leaks or Pressure Drops
    Visible fuel leakage or a decrease in fuel rail pressure may signal internal wear or cracking.

  • Check Engine Light and Diagnostic Trouble Codes (DTCs)
    The ECM may detect abnormalities and trigger fault codes related to fuel pressure.

Why the OEM DDE A9360781645 Fuel Rail Is the Right Choice:

  • Manufactured to meet Detroit DD8 engine specifications

  • Supports proper fuel atomization and injector function

  • Designed for consistent fuel pressure regulation

  • Durable and reliable under high-pressure diesel conditions

  • Direct-fit solution for 2016–2021 DD8 applications

Replacing a compromised high-pressure fuel rail is essential to keeping your Detroit DD8 engine operating reliably. The OEM DDE A9360781645 fuel rail available at Drive On Diesel Diesel Parts offers the exact fit and function needed to restore proper fuel system performance. Don’t let fuel delivery issues disrupt your uptime—choose trusted OEM parts from Drive On Diesel.

The high-pressure fuel rail is a crucial component of modern fuel injection systems, delivering fuel at precise pressures to ensure optimal engine performance. When this component malfunctions, it can lead to power loss, misfires, or hard starting. Understanding the root causes of fuel rail issues can help prevent breakdowns and costly repairs.

Common Causes of High-Pressure Fuel Rail Malfunction:

  • Fuel Contamination – Dirt, water, or debris in the fuel can clog the rail or damage pressure sensors and injectors.

  • Faulty Pressure Sensor – A malfunctioning sensor can send incorrect data to the ECU, resulting in poor fuel regulation.

  • Injector Leaks – Leaking injectors can drop fuel pressure in the rail, leading to misfires and uneven performance.

  • Failing High-Pressure Pump – A weak or failing pump may not deliver sufficient pressure to the rail, causing drivability issues.

  • Cracked or Damaged Rail – Physical damage from vibration, corrosion, or impact can compromise pressure stability.

  • Electrical Issues – Wiring faults or poor connections to the pressure sensor or control module can interfere with accurate fuel pressure control.

  • Excessive Heat – Overheating can degrade seals, sensors, or rail components, reducing system efficiency.

A high-pressure fuel rail malfunction can disrupt the entire fuel delivery system, affecting engine performance and reliability. Regular maintenance, clean fuel, and prompt attention to warning signs—such as check engine lights or starting problems—can help protect this critical component and keep your engine running smoothly.

Periodic inspection for cracks, corrosion, and sensor integrity is recommended during fuel system checks.

Detroit High Pressure Fuel Rails