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12_4e5309b1-04ee-43d3-af53-c7ab128231c7 - Northline Parts

2-Pack Bosch/Zexel Diesel Feed Pump Hand Primers

SKU: NLT2T04219
$39.69 In Stock
$39.69
Sale price  $39.69 Regular price 
Ships for free in 2–4 business days.
This two-piece primer-pump set is intended for compatible Bosch and Zexel diesel fuel feed pumps that use the same threaded hand-primer style.
Estimated delivery between
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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 / Family Applications
Bosch / Zexel fuel systems Feed pumps using the matching threaded hand-primer design

Product Overview

The hand primer is used to refill and bleed the low-pressure fuel circuit after filter changes, fuel-line service or running the system out of fuel. A worn primer can leak fuel externally or admit air, making the engine difficult to prime and start.

Bosch/Zexel feed pumps were fitted to many industrial and agricultural diesel engines, and several primer thread/seat designs exist. Compare the removed primer’s thread diameter, sealing surface and overall shape before installation.

Key Features & Performance

  • Two manual primer pumps per listing
  • Helps purge air and refill the low-pressure diesel fuel circuit
  • Suitable for compatible Bosch/Zexel feed-pump bodies

Technical Details

  • Quantity: 2
  • Component type: manual fuel primer
  • System: diesel low-pressure feed pump

Replaces Part Numbers

No universal cross-reference number was added beyond the verified application data. Match the original component identification before purchase.

Frequently Asked Questions

Q: When is a hand primer normally used?
A: After filter replacement, line service or other work that introduces air into the low-pressure fuel system.

Q: Can I identify fitment only by brand?
A: No. Bosch and Zexel used multiple primer designs; compare the original thread and sealing arrangement.

Compare dimensions/thread/sealing style with the original primer before ordering.

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