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Primer Pump

Primer Pump

Part Number: 168398-2
Makita
Availability: 25+ in stock
Price: $4.77
Ships within 1 business day

*This part replaces obsolete part #: and 523-65043-00.

Product Information
Manufacturer: Makita
Product Number: 168398-2
Classification: Part
Weight: 0.01 lbs.
Shipping: Ships Worldwide
Description:
This is a genuine OEM replacement part designed for use with Makita power tools. It is made out of rubber and it is sold individually. By pressing on the purge bulb, it will force fuel into the fuel line from the fuel tank into the carburetor. Once the carburetor is full of fuel, the excess fuel will be purged back into the tank in the fuel return line.

At some time the primer will lose its elasticity or crack and need to be replaced.
Products Compatibility

This item works with the following types of products:

  • • Blower
  • • Chain Saw
  • • Edger
  • • Saw
  • • Trimmer
Questions & Answers

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Repair Instructions: Submitted by Customers Like You
1 of 1 people found this instruction helpful
Tool Type:
Grass Trimmer
Parts Used:
Air Cleaner Element - 443167-5
Primer Pump - 168398-2
Repair Difficulty:
Medium
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Pliers
Primer Bulb Leak on 21 Year Old Makita
Work in a well-ventilated area if there is any gas in tank or bulb.
Recommend wrapping unit with a rag to absorb any minor spillage.
Removed casing around pull cord using medium Philips screwdriver. The pull cord mechanism comes off with the casing.
Note position of fuel lines. You can gently pull the tight one out from the tank to get some slack.
Remove two fuel lines from the bulb.
Remove bulb from casing by twisting or squeezing on-bulb clips to pull it off.
Attach new bulb to casing by pressing it into mounting hole.
Reattach fuel lines.
Gently reposition casing into its original position. You may need to tug on pull cord to get it to realign.
Test bulb before tightening screws by pressing once or twice. It should fill with no leaks.
Tighten casing screws.
Test for leaks
Get that woolly lawn back in shape!
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Tool Type:
Grass Trimmer
Parts Used:
Primer Pump - 168398-2
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver
Primer bulb had dry rotted
Popped the cover off of the carburetor, unclipped the old primer bulb, reinserted the gas lines into the new one and clipped it back into place. Really easy fix!
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Tool Type:
Blower
Parts Used:
Primer Pump - 168398-2
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Pliers
Worn out primer pump
1 Removed cover
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Tool Type:
Blower
Parts Used:
Primer Pump - 168398-2
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, 1/2\\
Primer bulb cracked from age,
1) Removed Philips screws and side of blower,
2) Disconnected fuel lines and snapped primer pump out.
3) Used a 1/2" 12 point socket which fit over the bulb and makes contact with the bulb base to press the primer bulb unit into the blower side. This method allows the primer bulb unit to be inserted straight, without putting any pressure on the bulb.
4) Reconnected the fuel lines and attached the blower side.
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Tool Type:
Grass Trimmer
Parts Used:
Primer Pump - 168398-2
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver, Needle nose Pliers
The primer Bulb cracked
Remove the pulley rope housing from the motor
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Tool Type:
Grass Trimmer
Parts Used:
Fuel Tank Cap - 452920-8
Primer Pump - 168398-2
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver
Fuel cap was cracked and leaking fuel, and the primer pump bulb had hardened and was not working properly.
Replaced fuel cap, and removed cover and the hardened primer pump to install the new primer pump bulb.
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Tool Type:
Grass Trimmer
Parts Used:
Fuel Tank Cap - 452920-8
Primer Pump - 168398-2
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Pliers
Primer ball was split.
Removed cover of weed eater. Pull gas lines off primer ball. Replaced new primer ball. Put back together
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Tool Type:
Grass Trimmer
Parts Used:
Primer Pump - 168398-2
Trimmer Head - B-60109
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Channel locks
Primer bubble dry rotted / trimmer head just wore out
Lucky I had some spare fuel line lying around. 5 screws and the cover was off . Primer just snaps into place.
The trimmer head came with more than enough parts and was easy swap. not sure why I waited so long to replace? Machine is 16 yrs old and wore the plastic "bump" head until the spring came through. The trimmer head includes installation instructions.
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Tool Type:
Grass Trimmer
Parts Used:
Primer Pump - 168398-2
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver
The primer pump was cracked
Use a small screwdriver to press on the primer side tabs to remove it
Remove the fuel lines from the old one
Install the fuel lines to the new one
Press it back into the housing
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Tool Type:
Grass Trimmer
Parts Used:
Fuel Tank Cap - 452920-8
Tube 2.5X5X140 - 085-11499-60
Air Cleaner Element - 443167-5
Tube - 523-60480-03
Primer Pump - 168398-2
Gasoline Filter - 163447-0
Repair Difficulty:
Easy
Time Spent Repairing:
30-60 minutes
Tools Used:
Screwdriver, Pliers, Carburetor cleaner spray
Would not start.
Removed old parts and cleaned up the fuel tank and the carburetor. Installed the new fuel lines, fuel filter, metering diaphragm, pump bulb, new fuel tank cap, and installed a new air filter. Reassembled and runs like new again.
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Reviews
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  • great
    great
    Guest - 17 days ago Verified Purchase
    PPRIMER PUMP
    Quick arrival.
    Guest - April 22, 2020 Verified Purchase
    Worked as expected
    Fit just like new
    Guest - December 25, 2019 Verified Purchase
    Verified Purchase
    eReplacementParts Team
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    Product Information
    Manufacturer: Makita
    Product Number: 168398-2
    Classification: Part
    Weight: 0.01 lbs.
    Shipping: Ships Worldwide
    Repair Guides
    Articles:
    Replacing primer bulbs in small engines is one of the most common types of tool repairs, and this article explains profe...
    June 25, 2010
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