Kubota V3800T High Pressure Fuel Pump 2011-2016: OEM 1J508-50500
KUBOTA V3800T HIGH PRESSURE FUEL PUMP 2011-2016: OEM 1J508-50500
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 1J508-50500RM ( OEM Part Number 1J508-50500 ). 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 Kubota V3800T, production years 2011-2016, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here
OEM NUMBERS
| Primary OEM | 1J508-50500 |
| Additional OEM | 1J508-50500 |
ADDITIONAL DETAILS
| CONDITION | Remanufactured |
| UPC / Barcode | |
| WEIGHT | 6.00 LBS |
SHIPPING OPTIONS
Ship Weight : 6.00 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"
Designed for Kubota V3800T engines manufactured between 2011 and 2016, the OEM 1J508-50500 High Pressure Fuel Pump delivers reliable fuel flow in alignment with original engine specifications. This component fits directly into the existing system, making it a suitable choice for routine replacement or repair. Its construction ensures steady function without the need for custom adjustments or alterations. Built to meet manufacturer standards, it supports consistent engine operation under daily use. Using an OEM pump helps maintain equipment compatibility and dependable system behavior.
FITMENT CHART
| YEAR | MAKE | ENGINE(S) | ||||
|---|---|---|---|---|---|---|
| 2011 | Kubota | V3800T | ||||
| 2012 | Kubota | V3800T | ||||
| 2013 | Kubota | V3800T | ||||
| 2014 | Kubota | V3800T | ||||
| 2015 | Kubota | V3800T | ||||
| 2016 | Kubota | V3800T | ||||
PEOPLE ALSO ASKS | BLOG(S)
The Kubota V3800T diesel engine, used in compact construction and industrial equipment, relies on a precise fuel system to maintain consistent operation. One of the most critical components in that system is the high pressure fuel pump, specifically the OEM 1J508-50500, designed for model years 2011 through 2016.
This fuel pump regulates the delivery of diesel to the injectors under high pressure, timed with the engine’s cycle. If your machine shows signs of rough starts, inconsistent idle, or low fuel efficiency, the fuel pump may need replacement.
Key features of the OEM 1J508-50500 fuel pump include:
- Durable Housing
- Resists wear in tough working environments
- Precision Plunger Assembly
- Controls fuel flow under high pressure
- Fuel Inlet and Return Ports
- Designed for easy integration with Kubota’s fuel lines
- Seal and Gasket System
- Minimizes the risk of leaks
- Exact Fit for V3800T Engines
- No modifications needed
Always verify the OEM number 1J508-50500 before ordering to ensure compatibility with your Kubota V3800T engine.
This component supports steady fuel delivery for equipment used in agriculture, construction, and utility applications.
A failed high pressure fuel pump (HPFP) can cause a variety of noticeable issues. Since the HPFP is critical for delivering the correct amount of fuel to your engine's fuel rail, any malfunction can disrupt the fuel system’s operation. Here are common symptoms to watch for:
Common Signs of a Failed High Pressure Fuel Pump:
- Hard Starting or No Start
- The engine may crank longer than usual or fail to start altogether due to insufficient fuel pressure.
- Engine Stalling
- Sudden stalls, especially under load or during acceleration, can point to inconsistent fuel delivery.
- Rough Idling
- A shaky or uneven idle may indicate the pump is struggling to supply steady fuel flow.
- Poor Fuel Economy
- You might notice a decrease in miles per gallon as the system compensates for fuel delivery issues.
- Illuminated Check Engine Light
- Diagnostic codes related to fuel pressure or misfires can signal HPFP failure.
- Loss of Acceleration Response
- The engine may hesitate or feel sluggish when the gas pedal is pressed.
- Fuel Odor or Leaks
- Fuel leaks near the pump or a strong fuel smell can suggest internal issues.
If you experience any of these symptoms, it’s wise to have the fuel system inspected with proper diagnostic tools to confirm whether the high pressure fuel pump is the source of the issue.
Yes, hard starts and poor fuel delivery are common symptoms of a failing high pressure pump.
Yes, the pump is mounted externally and can typically be serviced without removing the head.
Yes, the fuel system must be properly primed to remove air and ensure correct operation after pump replacement.
Signs include low fuel rail pressure, engine hesitation, and diagnostic trouble codes related to fuel delivery.
Kubota High Pressure Fuel Pumps
