Skip to product information
SKU:
NLT2T04260
Ships for free in 2–4 business days.
Primer Hand Pump 16665-99004 for Nissan UD Diesel
$22.99
In Stock
$22.99
Sale price
$22.99
Regular price
This replacement manual fuel primer hand pump is for Nissan UD diesel fuel systems using primer pump 16665-99004.
Estimated delivery between
Let Northline Parts Do the Heavy Lifting for You!
Not sure which part you need? Our team can help you find the right replacement.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
Edward H. — Verified customer
Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
| Make / Application | Models / Engines | Fitment Notes |
|---|---|---|
| Nissan UD | Diesel applications using 16665-99004 | Verify thread, fuel head and pump style before ordering. |
Product Overview
The manual fuel primer hand pump lets the operator manually move fuel and purge air from the low-pressure fuel system after service or loss of prime. Replace it if the hand plunger leaks fuel, draws air, will not build resistance, or no longer moves fuel well enough to bleed the system.
This part is a practical repair choice when the original component is worn or failed and the machine is showing problems such as hand primer will not build pressure, fuel leaks around the plunger, air enters the system through the primer. Confirming the part number and application before installation helps avoid ordering a visually similar component that uses a different configuration.
Key Features & Performance
- Allows manual priming of the diesel fuel system
- Useful after filter replacement or when the system has lost prime
- Matches reference 16665-99004
- Check thread and sealing surfaces before installation
Technical Specifications
- Function: Manual fuel-system priming / air bleeding
OE / Reference Numbers
- 16665-99004
- 1666599004
Common Reasons for Replacement
- Hand primer will not build pressure
- Fuel leaks around the plunger
- Air enters the system through the primer
- Difficult bleeding after filter service
Frequently Asked Questions
How do I confirm fitment?
The primer is used to pull fuel through the low-pressure side of the system after filter service, fuel-system opening, or loss of prime.
Is this an OEM part?
This listing is for a replacement part. Brand names and OE/reference numbers are used to identify fitment unless the listing specifically states that the item is genuine OEM.