Skip to product information
SKU:
NLT2T03487
Ships for free in 2–4 business days.
Fuel Priming Pump for Caterpillar D250D D300D D350D D400D Articulated Trucks
$65.79
In Stock
$65.79
Sale price
$65.79
Regular price
This manual fuel priming pump is intended for Caterpillar articulated-truck and diesel-engine applications that use this hand-primer style.
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
| Caterpillar articulated trucks | D20D, D25D, D30D, D35HP, D40D |
|---|---|
| Caterpillar articulated trucks | D250D/E/E II, D300D/E/E II, D350D/E, D400D/E |
Product Overview
After a filter change, fuel-system repair or loss of prime, the hand primer lets the low-pressure side of the diesel system be filled and air purged before cranking. A primer that leaks internally or will not build resistance can make bleeding unnecessarily difficult and contribute to hard starting.
The same priming-pump style is used across multiple Caterpillar machines and engine families, so the mounting flange, thread/port arrangement and original pump should be compared before ordering.
Key Features & Performance
- Manual hand-operated fuel priming function
- Helps refill and bleed the low-pressure diesel fuel circuit
- Useful after fuel-filter service or when the original primer leaks
- Fits multiple Caterpillar articulated-truck applications
Technical Specifications
- Component: Manual fuel priming pump
- System: Diesel low-pressure fuel supply
Frequently Asked Questions
Q: Why does a primer pump matter after filter service?
A: It fills the filter and low-pressure lines so trapped air can be removed before the engine is cranked extensively.
Q: How do I confirm this pump?
A: Compare the mounting, ports and original primer design with your Caterpillar parts information.
Fitment can vary by serial number, production date, engine configuration or prior repairs. Verify compatibility using the part numbers and application details listed above before ordering.