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12_dee98926-ea54-4157-8cb6-71a876b1a12f - Northline Parts

Fuel Primer Pump 6657734 for Bobcat S160 S175 S185 S205 S550

SKU: NLT2T00777
$22.99 In Stock
$22.99
Sale price  $22.99 Regular price 
Ships for free in 2–4 business days.
Hand-operated fuel primer pump/bulb 6657734 for a very broad range of Bobcat diesel equipment.
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
Application Fitment Notes
Bobcat S160 / S175 / S185 / S205 / S550 Confirmed Bobcat applications.
Many additional Bobcat skid steers, track loaders and excavators 6657734 is used across a very broad model range.

Product Overview

The primer pump is used to draw fuel through the low-pressure system after a fuel-filter change or loss of prime. Bobcat describes it as a one-way, high-flow primer made from fuel-resistant elastomer.

Key Features & Performance

  • Bobcat reference 6657734
  • Hand fuel-primer pump
  • One-way check-valve design
  • Approx. 4.88 in long

Common Reasons for Replacement

  • Fuel system will not prime after filter service
  • Primer bulb is cracked, soft or leaking
  • Internal one-way valve no longer holds fuel

Technical Specifications

  • Length: Approx. 4.88 in
  • Function: Manual fuel priming pump

OE / Reference Numbers

  • 6657734

Frequently Asked Questions

How do I confirm fitment? Confirm hose size and 6657734 in the machine parts catalog. Bobcat notes parts can vary by serial number.

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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