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12_03997ab8-0415-4207-b4a9-257b1c6c5730 - Northline Parts

Bosch Hand Primer Pump 2447222126 M16-1.50 for Diesel Fuel Systems

SKU: NLT2T04012
$22.99 In Stock
$22.99
Sale price  $22.99 Regular price 
Ships for free in 2–4 business days.
This Bosch-style hand primer pump is used to manually fill and bleed the low-pressure diesel fuel system after filter changes, fuel-system repairs or loss of prime.
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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
Application Fitment Notes
Bosch fuel-system applications using 2447222126 Use only with the matching original part/configuration.
Compatible diesel equipment where the pump thread and cross-reference match Use only with the matching original part/configuration.

Product Overview

For buyers repairing Bosch diesel fuel-system applications using hand primer 2447222126 with the matching M16 x 1.50 threaded mounting, this hand primer pump gives you a focused replacement option without adding unsupported claims about applications outside the listed fitment. Provides a manual way to refill the low-pressure fuel circuit and purge air after service.

Fitment matters on service parts like this one. The same style is used across many engine brands. Fitment should be confirmed by reference number and M16 x 1.50 thread rather than equipment brand alone.

Key Features & Performance

  • Designed for Bosch diesel fuel-system applications using hand primer 2447222126 with the matching M16 x 1.50 threaded mounting.
  • Provides a manual way to refill the low-pressure fuel circuit and purge air after service.
  • Cross-reference number(s): 2447222126, 4227010038.
  • Thread: M16 x 1.50.

Technical Specifications

  • Thread: M16 x 1.50
  • Reference Numbers: 2447222126, 4227010038

OE / Reference Numbers

  • 2447222126
  • 4227010038

Common Reasons for Replacement

  • Primer plunger leaks fuel or draws air
  • Fuel system is difficult to prime after service
  • Original hand pump no longer develops suction

Frequently Asked Questions

How do I confirm fitment?
The same style is used across many engine brands. Fitment should be confirmed by reference number and M16 x 1.50 thread rather than equipment brand alone.

When should the hand primer pump be replaced?
Replacement makes sense when diagnosis confirms the original component is worn, damaged or electrically/mechanically failed and the rest of the related system checks out.

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.

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