Skip to product information
12_6cf85e0e-e51d-4310-9908-b613f52cade6 - Northline Parts

Hand Priming Fuel Feed Pump for Hitachi DX40/DX45 Excavator Series

SKU: NLT2T02067
$22.99 In Stock
$22.99
Sale price  $22.99 Regular price 
Ships for free in 2–4 business days.
This hand-operated fuel priming/feed pump is for compatible Hitachi DX40 and DX45-series excavator applications, including C, M and MM variants listed below.
Estimated delivery between
Shop at Northline Parts Best Customer Service Best Online Parts

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
Brand / Equipment Compatible Models / Engines Fitment Notes
Hitachi DX40-C, DX45-C Excavators
Hitachi DX40M-C, DX45M-C Excavators
Hitachi DX40MM-C, DX45MM-C Excavators

Product Overview

A hand primer is used to draw fuel through the low-pressure side of a diesel system after filter replacement, fuel-line service or running the machine out of fuel. If the primer check valves or seals fail, the system may be difficult to bleed and can repeatedly pull air into the fuel supply.

The original listing groups several DX40/DX45 variants together. Since older compact excavators can have engine and pump revisions, compare the mounting flange, line fittings and the pump removed from the engine before ordering.

Key Features & Performance

  • Manual fuel-system priming after service
  • Helps purge air from the low-pressure fuel circuit
  • Application-specific replacement for listed Hitachi DX40/DX45 variants

Product Details

  • Component: Hand priming / fuel feed pump

What to Verify Before Ordering

Compare fuel-port orientation, mounting bolt pattern and engine/pump information before ordering.

Frequently Asked Questions

When is a hand primer used?
Typically after opening the fuel system for filter/line service or when air must be bled before starting.

Can a faulty primer cause hard starting?
Yes. A leaking primer or failed internal check valve can let the low-pressure fuel system lose prime or draw air.

Customers also purchased