★ Product Overview

This Primer Bulb has good fitment with compatible blowers, trimmers and other equipment. It supports startup assistance for the equipment's fuel system. It fits the fuel system structure and aids fuel delivery to the carburetor via manual pressing. It provides basic support for equipment startup, adding daily use convenience.

★ Technical Specifications

Condition: NEW

Brand: Unbranded

Type: Primer Bulb

Number In Pack: 4

Color: Black

Voltage: 12 V

★ Replacing OE#

188512, 188-512, 188-512-1, 683974, 530047721, 503 83 66-01, 01183, 300780001, 300780004, A056001, WT-23A, WYJ-33, WYJ-34, WYJ-45, WYJ-92, WYJ-94, WYJ-86, UP04033, 300780002

★ Fitment

For the following models:

Refer to part numbers

For 01183, UP04033, 300780001, 300780002 & 300780004.

For Bin number 188-512 , A056001

For Walbro WT-23A, WYJ-33, WYJ-34, WYJ-45, WYJ-92, WYJ-94 AND WYJ-86

For Engines:

For Echo 350, 370, 420 and For Tanaka 3350

For the following models:

For MB1000 Pressure Washer UT-01596-->Housing, Pump & Tank

For MB1000 Pressure Washer UT-01596-1-->Housing, Pump & Tank

For 20 Chain Saw UT-10847-->Engine Housing - Fuel Tank - Oil Tank

For 20 Chain Saw UT-10881-->Engine Housing - Fuel Tank - Oil Tank

For 20 w/cc Chain Saw UT-10853-->Engine Housing - Fuel Tank - Oil Tank

For 20 w/cc Chain Saw UT-10883-->Engine Housing - Fuel Tank - Oil Tank

For 23 w/cc Chain Saw UT-10870-->Engine Housing - Fuel Tank - Oil Tank

For 33 UT-26204-->Engine Housing - Fuel Tank - Oil Tank

For 38 UT-26205-->Engine Housing - Fuel Tank - Oil Tank

For B2216CC Chain Saw UT-10941-->Engine Housing - Fuel Tank - Oil Tank

For d3300 Chain Saw UT-10855-->Engine Housing - Fuel Tank - Oil Tank

For d3300 Chain Saw UT-10880-->Engine Housing - Fuel Tank - Oil Tank

For d3300c Chain Saw UT-10857-->Engine Housing - Fuel Tank - Oil Tank

For d3300c Chain Saw UT-10882-->Engine Housing - Fuel Tank - Oil Tank

For i4550b Chain Saw UT-10862-->Engine Housing - Fuel Tank - Oil Tank

For PS33 Chain Saw UT-10854-->Engine Housing - Fuel Tank - Oil Tank

For Ranger 33cc 16" Chain Saw UT-10926-->Engine Housing - Fuel Tank - Oil Tank

For 1940 UT-26030-->Starter

For 1940 UT-26030-A-->Starter

For 33 cc 14" Chain Saw UT-10901-B-->Engine Housing- Fuel Tank- Oil Tank

For 250 Chain Saw UT-10724-B-->Engine Housing

For 250 Chain Saw UT-10724-C-->Engine Housing

For 250 Chain Saw UT-10724-D-->Engine Housing

For 250 Chain Saw UT-10724-E-->Engine Housing

For 252 Chain Saw UT-10732-->Engine Housing

For 252 Chain Saw UT-10732-A-->Engine Housing

For 252 Chain Saw UT-10732-B-->Engine Housing

For 252 Chain Saw UT-10732-C-->Engine Housing

For 252 Chain Saw UT-10733-->Engine Housing

For 252 Chain Saw UT-10733-A-->Engine Housing

For 252 Chain Saw UT-10733-B-->Engine Housing

For 252 Chain Saw UT-10733-C-->Engine Housing

For 300 Chain Saw UT-10687-->Housing & Tanks

For 300 Chain Saw UT-10687-B-->Engine Housing

For 300 Chain Saw UT-10687-C-->Engine Housing

For 300 Chain Saw UT-10687-D-->Engine Housing

For 300 Chain Saw UT-10687-E-->Engine Housing

For 300 Chain Saw UT-10700-A-->Engine Housing

For 300 Chain Saw UT-10700-B-->Engine Housing

For 300 Chain Saw UT-10700-C-->Engine Housing

For 300 Chain Saw UT-10700-D-->Engine Housing

For 300 Chain Saw UT-10725-B-->Engine Housing

For 300 Chain Saw UT-10725-C-->Engine Housing

For 300 Chain Saw UT-10725-D-->Engine Housing

For 300 Chain Saw UT-10725-E-->Engine Housing

For CS40 Chain Saw UT-10707-->Engine Housing

For CS40 Chain Saw UT-10707-A-->Engine Housing

For CS40 Chain Saw UT-10707-B-->Engine Housing

For CS40 Chain Saw UT-10708-->Engine Housing

For CS40 Chain Saw UT-10708-A-->Engine Housing

For CS40 Chain Saw UT-10708-B-->Engine Housing

For CS40 Chain Saw UT-10760-->Engine Housing

For CS4018 Chain Saw UT-10736-R-->Engine Housing

For CS50 Chain Saw UT-10710-A-->Engine Housing

For CS50 Chain Saw UT-10710-B-->Engine Housing

For CS50 Chain Saw UT-10710-C-->Engine Housing

For CS50 Chain Saw UT-10711-A-->Engine Housing

For CS50 Chain Saw UT-10711-B-->Engine Housing

For CS50 Chain Saw UT-10711-C-->Engine Housing

For CS5020 Chain Saw UT-10737-R-->Engine Housing

For d4400b Chain Saw UT-10750-->Engine Housing

For HBC38 String Trimmer UT-15077-->Air Filter & Carburetor

For HBC40 String Trimmer UT-15069-->Air Filter & Carburetor

For HTC12 Hedge Trimmer UT-22089-B-->Engine

For HTC12 Hedge Trimmer UT-22089-C-->Engine

For HTC12 Tiller UT-22089-->Engine

For i4400b Chain Saw UT-10764-->Engine Housing

For z4400 Chain Saw UT-10765-->Engine Housing

For 250 Chain Saw UT-10681-->Housing & Tank Assys

For PBC3600 String Trimmer UT-15089-B-->Starter

For PBC3600 String Trimmer UT-15089-C-->Starter

For PBC3600 String Trimmer UT-15089-D-->Starter

For PBC3600 String Trimmer UT-15089-E-->Starter

For PBC3600-B String Trimmer UT-15091-A-->Starter

For PBC3600-B String Trimmer UT-15091-B-->Starter

For PBC3600-B String Trimmer UT-15091-C-->Starter

For PBC3600-B String Trimmer UT-15091-D-->Starter

For PBC3600-B String Trimmer UT-15091-E-->Starter

For PBC3600-B String Trimmer UT-15091-F-->Starter

For PLT3400 String Trimmer UT-15090-B-->Starter

For PLT3400 String Trimmer UT-15090-C-->Starter

For PLT3400 String Trimmer UT-15090-D-->Starter

For PLT3400 String Trimmer UT-15090-E-->Starter

For PLT3400 String Trimmer UT-15090-F-->Starter

For PSE3000 Edger UT-20610-A-->Ignition Starter And Muffler

For PSE3000 String Trimmer UT-20610-C-->Starter, Ignition & Muffler

For PSE3000 String Trimmer UT-20610-R-->Ignition Starter And Muffler

For 30 UT-26203-->Engine Housing

For PBC3800 String Trimmer UT-15077-A-->Intake

For PBC3800 String Trimmer UT-15077-B-->Intake Assy

For PBC4000 String Trimmer UT-15069-A-->Intake

For PBC4000 String Trimmer UT-15069-B-->Intake Assy

For PBC4000 String Trimmer UT-15069-C-->Intake Assy

For PBC4000 String Trimmer UT-15069-D-->Intake Assy

For 33cc 16" Chain Saw UT-10947-->Engine Housing - Fuel Tank - Oil

For 33cc 16" Chain Saw UT-10947-A-->Engine Housing - Fuel Tank - Oil

For 33cc 16" Chain Saw UT-10947-D-->Carburetor - Air Filter

For 33cc 16" Chain Saw UT-10947-E-->Engine Housing - Fuel Tank - Oil Tank

For RY74003D 33cc - 14 in. Chain Saw-->Carburetor - Air Filter

For 20 Chain Saw UT-10782-A-->Engine Housing - Fuel Tank - Oil Tank

For 20 Chain Saw UT-10817-->Engine Housing - Fuel Tank - Oil Tank

For 20 w/cc Chain Saw UT-10786-A-->Engine Housing - Fuel Tank - Oil Tank

For 20 w/cc Chain Saw UT-10818-->Engine Housing - Fuel Tank - Oil Tank

For 20av Chain Saw UT-10759-A-->Engine Housing - Fuel Tank - Oil Tank

For 20av w/cc Chain Saw UT-10771-A-->Engine Housing - Fuel Tank - Oil Tank

For 23 Chain Saw UT-10781-A-->Engine Housing - Fuel Tank - Oil Tank

For 23 w/cc Chain Saw UT-10785-A-->Engine Housing - Fuel Tank - Oil Tank

For 23 w/cc Chain Saw UT-10815-->Engine Housing - Fuel Tank - Oil Tank

For 23 w/cc Chain Saw UT-10842-->Engine Housing - Fuel Tank - Oil Tank

For 23av Chain Saw UT-10772-A-->Engine Housing - Fuel Tank - Oil Tank

For 23av Chain Saw UT-10820-->Engine Housing - Fuel Tank - Oil Tank

For 23av Chain Saw UT-10846-->Engine Housing - Fuel Tank - Oil Tank

For 23av Chain Saw UT-10884-->Engine Housing - Fuel Tank - Oil Tank

For 23av w/cc Chain Saw UT-10773-A-->Engine Housing - Fuel Tank - Oil Tank

For 23av w/cc Chain Saw UT-10822-->Engine Housing - Fuel Tank - Oil Tank

For 23av w/cc Chain Saw UT-10823-->Engine Housing - Fuel Tank - Oil Tank

For 23av w/cc Chain Saw UT-10829-->Engine Housing - Fuel Tank - Oil Tank

For 23av w/cc Chain Saw UT-10856-->Engine Housing - Fuel Tank - Oil Tank

For 23av w/cc Chain Saw UT-10858-->Engine Housing - Fuel Tank - Oil Tank

For 23av w/cc Chain Saw UT-10885-->Engine Housing - Fuel Tank - Oil Tank

For 23av w/cc Chain Saw UT-10888-->Engine Housing - Fuel Tank - Oil Tank

For 25av Chain Saw UT-10803-->Engine Housing - Fuel Tank - Oil Tank

For 25av w/cc Chain Saw UT-10804-->Engine Housing - Fuel Tank - Oil Tank

For 27av Chain Saw UT-10805-->Engine Housing - Fuel Tank - Oil Tank

For 27av Chain Saw UT-10831-->Engine Housing - Fuel Tank - Oil Tank

For 27av Chain Saw UT-10859-->Engine Housing - Fuel Tank - Oil Tank

For 27av Chain Saw UT-10874-->Engine Housing - Fuel Tank - Oil Tank

For 27av w/cc Chain Saw UT-10825-->Engine Housing - Fuel Tank - Oil Tank

For 27av w/cc Chain Saw UT-10827-->Engine Housing - Fuel Tank - Oil Tank

For 27av w/cc Chain Saw UT-10830-->Engine Housing - Fuel Tank - Oil Tank

For 27av w/cc Chain Saw UT-10835-->Engine Housing - Fuel Tank - Oil Tank

For 27av w/cc Chain Saw UT-10848-->Engine Housing - Fuel Tank - Oil Tank

For 27av w/cc Chain Saw UT-10863-->Engine Housing - Fuel Tank - Oil Tank

For All American Chain Saw UT-10790-->Engine Housing - Fuel Tank - Oil Tank

For b2014 Chain Saw UT-10797-R-->Engine Housing - Fuel Tank - Oil Tank

For b2014 Chain Saw UT-10934-->Engine Housing - Fuel Tank - Oil Tank

For b2316 Chain Saw UT-10798R-->Engine Housing - Fuel Tank - Oil Tank

For b2316 Chain Saw UT-10936-->Engine Housing - Fuel Tank - Oil Tank

For b2316 w/cc Chain Saw UT-10798-R1-->Engine Housing - Fuel Tank - Oil Tank

For b2316 w/cc Chain Saw UT-10937-->Engine Housing - Fuel Tank - Oil Tank

For B2718 Chain Saw UT-10877-->Engine Housing - Fuel Tank - Oil Tank

For B2718 Chain Saw UT-10938-->Engine Housing - Fuel Tank - Oil Tank

For B2720 Chain Saw UT-10875-->Engine Housing - Fuel Tank - Oil Tank

For B2720 Chain Saw UT-10939-->Engine Housing - Fuel Tank - Oil Tank

For B2720cc Chain Saw UT-10876-->Engine Housing - Fuel Tank - Oil Tank

For B2720cc Chain Saw UT-10940-->Engine Housing - Fuel Tank - Oil Tank

For BCS35 Chain Saw UT-10878-->Engine Housing - Fuel Tank - Oil Tank

For d3300 Chain Saw UT-10779-->Engine Housing - Fuel Tank - Oil Tank

For d3300 Chain Saw UT-10779-A-->Engine Housing - Fuel Tank - Oil Tank

For d3300 Chain Saw UT-10821-->Engine Housing - Fuel Tank - Oil Tank

For d3300c Chain Saw UT-10784-->Engine Housing - Fuel Tank - Oil Tank

For d3300c Chain Saw UT-10784-A-->Engine Housing - Fuel Tank - Oil Tank

For d3300c Chain Saw UT-10828-->Engine Housing - Fuel Tank - Oil Tank

For d3350b Chain Saw UT-10767-->Engine Housing - Fuel Tank - Oil Tank

For d3350b Chain Saw UT-10767-A-->Engine Housing - Fuel Tank - Oil Tank

For d3350bc Chain Saw UT-10768-->Engine Housing - Fuel Tank - Oil Tank

For d3350bc Chain Saw UT-10768-A-->Engine Housing - Fuel Tank - Oil Tank

For d3800 Chain Saw UT-10780-->Engine Housing - Fuel Tank - Oil Tank

For d3800 Chain Saw UT-10780-A-->Engine Housing - Fuel Tank - Oil Tank

For d3800c Chain Saw UT-10783-->Engine Housing - Fuel Tank - Oil Tank

For d3800c Chain Saw UT-10783-A-->Engine Housing - Fuel Tank - Oil Tank

For d3850b Chain Saw UT-10769-->Engine Housing - Fuel Tank - Oil Tank

For d3850b Chain Saw UT-10769-A-->Engine Housing - Fuel Tank - Oil Tank

For d3850b Chain Saw UT-10833-->Engine Housing - Fuel Tank - Oil Tank

For d3850b Chain Saw UT-10861-->Engine Housing - Fuel Tank - Oil Tank

For d3850b Chain Saw UT-10886-->Engine Housing - Fuel Tank - Oil Tank

For d3850bc Chain Saw UT-10770-->Engine Housing - Fuel Tank - Oil Tank

For d3850bc Chain Saw UT-10770-A-->Engine Housing - Fuel Tank - Oil Tank

For d3850bc Chain Saw UT-10824-->Engine Housing - Fuel Tank - Oil Tank

For d3850bc Chain Saw UT-10837-->Engine Housing - Fuel Tank - Oil Tank

For d3850bc Chain Saw UT-10838-->Engine Housing - Fuel Tank - Oil Tank

For d3850bc Chain Saw UT-10865-->Engine Housing - Fuel Tank - Oil Tank

For d3850bc Chain Saw UT-10866-->Engine Housing - Fuel Tank - Oil Tank

For d3850bc Chain Saw UT-10887-->Engine Housing - Fuel Tank - Oil Tank

For d4150b Chain Saw UT-10801-->Engine Housing - Fuel Tank - Oil Tank

For d4150b w/cc Chain Saw UT-10802-->Engine Housing - Fuel Tank - Oil Tank

For d4550b Chain Saw UT-10787-->Engine Housing - Fuel Tank - Oil Tank

For d4550b Chain Saw UT-10832-->Engine Housing - Fuel Tank - Oil Tank

For d4550b Chain Saw UT-10860-->Engine Housing - Fuel Tank - Oil Tank

For d4550bc Chain Saw UT-10836-->Engine Housing - Fuel Tank - Oil Tank

For d4550bc Chain Saw UT-10864-->Engine Housing - Fuel Tank - Oil Tank

For i3350b Chain Saw UT-10774-->Engine Housing - Fuel Tank - Oil Tank

For i3350b Chain Saw UT-10774-A-->Engine Housing - Fuel Tank - Oil Tank

For i3350b Chain Saw UT-10840-->Engine Housing - Fuel Tank - Oil Tank

For i3350b Chain Saw UT-10868-->Engine Housing - Fuel Tank - Oil Tank

For i3850b Chain Saw UT-10758-->Engine Housing - Fuel Tank - Oil Tank

For i3850b Chain Saw UT-10758-A-->Engine Housing - Fuel Tank - Oil Tank

For i3850b Chain Saw UT-10869-->Engine Housing - Fuel Tank - Oil Tank

For i4150b Chain Saw UT-10808-->Engine Housing - Fuel Tank - Oil Tank

For i4150b Chain Saw UT-10839-->Engine Housing - Fuel Tank - Oil Tank

For i4150b Chain Saw UT-10867-->Engine Housing - Fuel Tank - Oil Tank

For i4550b Chain Saw UT-10807-->Engine Housing - Fuel Tank - Oil Tank

For i4550b Chain Saw UT-10834-->Engine Housing - Fuel Tank - Oil Tank

For N3014 Chain Saw UT-10799-R-->Engine Housing - Fuel Tank - Oil Tank

For n3014 Chain Saw UT-10932-->Engine Housing - Fuel Tank - Oil Tank

For n3014 w/cc Chain Saw UT-10799-R1-->Engine Housing - Fuel Tank - Oil Tank

For n3014 w/cc Chain Saw UT-10933-->Engine Housing - Fuel Tank - Oil Tank

For N3316 Chain Saw UT-10800-R-->Engine Housing - Fuel Tank - Oil Tank

For n3316 Chain Saw UT-10935-->Engine Housing - Fuel Tank - Oil Tank

For RY60511B Gas Cultivator-->Engine

For RY60520 Gas Cultivator-->General Assembly (Part 2)

For 33cc Chain Saw UT-10514-->Figure A

For 33cc Chain Saw UT-10516-->Figure A

For 51952 Curved Shaft String Trimmer S/N 260000001 & Up-->Engine

For 51972 Straight Shaft String Trimmer S/N 260000001 & Up-->Engine

For 51973 Straight Shaft String Trimmer S/N 260000001 & Up-->Engine Assembly

For 51992 Brushcutter S/N 260000001 & Up-->Engine

For 51993 Brushcutter S/N 260000001 & Up-->Engine Assembly

For Chain Saw UT-10532-->Figure A

For RY08510 Hand Held Blower-->Engine Assembly

For RY08544 Blower/Vacuum-->Engine Assembly

For RY08548 Blower/Vacuum-->Figure A

For RY08570 Backpack Blower-->Engine Assembly

For RY08574 Backpack Blower-->Engine Assembly

For RY08576 Backpack Blower-->Figure A

For RY09903 Blower/Vacuum-->Figure A

For RY09973 Backpack Blower-->Figure A

For RY60512 Gas Cultivator-->General Assembly (Part 2)

For SUPER 2 Chain Saw UT-10552-->Figure A

For RY10532 18 in. 40cc Chain Saw-->General Assembly (Part 2 Bin location = 188-512.

★ Product Highlights

-Compatibility with Compatible Equipment

Based on user feedback, it has good compatibility with the fuel system mounting position of compatible blowers and trimmers, and is compatible with corresponding interface specifications.

-Convenience of Assembly Operation

No modification to the main structure of the equipment's fuel line is needed during assembly, which can be completed in a conventional way with relatively simple operation.

-Improvement of Startup Assistance Smoothness

After assembly, it coordinates well with the equipment carburetor and fuel line, helping to optimize the fuel supply assistance rhythm during cold startup or startup after inactivity.

-Reduction of Usage Abnormality Risk

In outdoor operations or environments with temperature and humidity changes, it can adapt well to pressing frequency, helping to lower the possibility of damage or poor sealing.

-Maintenance of Startup System Stability

In scenarios of frequent start-stop or long-term operation, it has good compatibility with the equipment's fuel supply system, helping to provide basic support for the startup assistance function.

★ Installation Guide

-Basic Installation Steps:

① Stop the equipment and disconnect power, then locate the installation position of the primer bulb.

② Remove the old primer bulb and surrounding fixing parts.

③ Confirm that the new primer bulb fits the installation position.

④ Install and fix the new primer bulb in the correct direction.

⑤ Press to test the primer bulb's elasticity and check if the installation is in place.

!!! THIS INSTALLATION GUIDE IS FOR REFERENCE ONLY. THE ACTUAL INSTALLATION PROCESS SHALL PREVAIL.

-Important Notes:

☑ Please turn off the equipment power before replacement to avoid accidents during operation.

☑ Operate gently when removing the old primer bulb to avoid damaging the connecting pipeline.

☑ You may clean oil and dust at the interface before installation to keep the connection smooth.

☑ Pay attention to the direction of the component during installation to avoid reverse installation affecting use.

☑ If you are unfamiliar with the replacement process, it is recommended to consult a professional maintenance personnel.

★ 3 Reasons to Choose Us

-Strict Quality Inspection & Premium Materials

Multi-round checks for high standards; premium materials cut failure risks, ease replacement worries, solidify use.

-Durable Design & Stable Performance

Precision craft boosts durability for long use; maintains stable performance to support core needs.

-Thoughtful & Responsive After-Sales

Regular channels, responsive service; optimizes purchase-after-sales experience, follows up promptly to improve satisfaction.

★ Package

4×Primer Bulb (As the pictures shown)

★ Frequently Asked Questions

Q: Can it improve the convenience of equipment startup after replacement?

A: Optimizes fuel supply assistance during startup after correct installation; effect varies slightly by equipment condition.

Q: Is the primer bulb easy to fall off after installation?

A: Stable after correct snap installation; it is recommended to pull gently to check fixation after installation.