
Hino High Pressure Fuel Pump : OEM 22100-E0351
HINO HIGH PRESSURE FUEL PUMP : OEM 22100-E0351

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY
1M MILES OR 1 YEAR
PRODUCT DESCRIPTION
This is a Remanufactured Tamerx High Pressure Fuel Pump, Tamerx part number 294050-0366RM ( OEM Part Number 22100-E0351 ). 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
Hino , and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here
OEM NUMBERS
| Primary OEM | 22100-E0351 |
| Additional OEM | 22100-E0351, 294050-0366 |
ADDITIONAL DETAILS
| CONDITION | Remanufactured |
| UPC / Barcode | 00840490537668 |
| WEIGHT | 15.00 LBS |
SHIPPING OPTIONS
Ship Weight : 15.00 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.
The customer, or parts buyer, is responsible for any shipping costs associated with core returns unless otherwise specified in the product listing/detail page. Tamerx Diesel Products 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 Tamerx Diesel Products core charge presented to you online today with your item is representative of the most common core charge.
Engineered to meet original equipment specifications, the Hino High Pressure Fuel Pump OEM 22100-E0351 is designed for precise fit and dependable operation in compatible Hino engine applications. This pump is responsible for delivering fuel at the required pressure to the common rail system, ensuring accurate fuel distribution to each injector. Manufactured with durable internal components and tight tolerances, it is built to withstand the high demands of modern diesel fuel systems. Proper high-pressure fuel pump function is essential for maintaining consistent combustion and controlled emissions output. Tamerx Diesel Products LLC offers this Hino fuel pump as a reliable solution for maintaining steady and efficient fuel system operation.
PEOPLE ALSO ASKS | BLOG(S)
The Hino High Pressure Fuel Pump OEM 22100-E0351 is a precision-engineered unit designed to supply highly pressurized fuel to the common rail system of diesel engines. It raises fuel pressure from the low-pressure supply to the high levels required for modern direct injection systems. This elevated pressure is critical for efficient atomization and controlled combustion.
Though the pump is sold as a single assembly, it contains several internal and external components that work together to deliver consistent, high-pressure fuel.
Core Internal Components
- Pump Housing
- The main body that supports all internal mechanisms and seals.
- Plunger Assemblies
- Precision machined plungers that compress fuel to high pressure.
- Cam or Rotor Mechanism
- Drives the plunger movement in timed cycles.
- Delivery Valves
- Control the release of pressurized fuel to the rail.
- Check Valves
- Ensure unidirectional flow and prevent backflow.
- Springs and Retainers
- Maintain proper tension and positioning for moving parts.
Supporting Components
- Fuel Inlet Port/Fitting
- Accepts fuel from the low-pressure side of the system.
- High-Pressure Outlet Port
- Sends pressurized fuel to the common rail.
- Seals and O-Rings
- Prevent fuel leaks at mating surfaces.
- Bearings and Bushings
- Support smooth, low-friction movement of internal parts.
- Mounting Flange and Hardware
- Secure the pump to the engine block.
These elements work together so that as the cam or rotor turns, the plungers move up and down, drawing fuel in and compressing it to the high pressure required for diesel injection systems. Proper sealing and precision machining of internal parts are essential to maintain pressure and prevent leakage.
Understanding the components inside the Hino High Pressure Fuel Pump OEM 22100-E0351 helps explain why routine maintenance—such as clean fuel supply and timely filter changes—is vital to preserving pump life and engine reliability.
The high pressure fuel pump is responsible for delivering fuel at extremely high pressure to the injectors. When it begins to fail, engine operation can quickly become unstable. Knowing when to replace it can help prevent more serious damage.
There is no fixed replacement interval. Instead, the pump should be replaced when clear signs of failure appear and testing confirms internal wear or damage.
Common warning signs include:
- Hard starting or extended cranking
- Sudden engine stalling
- Loss of acceleration
- Rough idle or misfires
- Metal shavings found in the fuel system
- Check engine light with fuel pressure codes
One of the most serious indicators is metal debris in the fuel system. Internal wear inside the pump can contaminate injectors and fuel lines, requiring more extensive repairs if not addressed quickly.
Low fuel pressure readings or inconsistent pressure under load are also strong signs of pump failure.
Professional diagnostics are essential. A technician will test fuel pressure, inspect the system for contamination, and scan for fault codes before confirming replacement.
Replacing a failing high pressure fuel pump promptly helps protect injectors and prevent widespread fuel system damage.
The 22100-E0351 fuel pump supplies diesel at elevated pressure to the injectors for proper atomization.
The 22100-E0351 high pressure fuel pump is mounted on the engine block and driven by the camshaft.
Symptoms may include inconsistent fuel delivery or diagnostic codes related to fuel pressure regulation.
Yes, the 22100-E0351 fuel pump is designed to integrate with the original fuel lines and connections.







