Primer Plunger

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Part# 05-01980
MFR Model# 11305


Plunger Primer Mounts in panel thru 3/4' hole. Comes complete with nut and Lockwasher as shown. Two rear ports accept any 1/8' id. fuel line. Attach supply line to angled port. Straight port routes to Carburetor.
California Prop 65 Warning Symbol

WARNING: The product may contain and/or expose you to a chemical(s) or substance(s) which are known to the State of California to cause cancer and/or birth defects or other reproductive harm.


  • Measures 3.5" long
  • Weight 2 oz.


Just what I needed with quick delivery!

Stephan R Verified Purchase


May 29, 2022

Bought this for my jetski! I searched everywhere on Amazon and eBay and no one had a decent quality primer, then I found these. Bought two just in case as it was cheaper than Amazon! So far Im very happy with it! Great shipping too, came really fast!

Dustin W Verified Purchase


May 10, 2022

Not normally do many reviews but felt compelled to do this one. Congrats to Aircraft Spruce for being the best company I ever dealt with, and I tell you why. The product (primer for ultralight) is of top quality The price was very competative (much lower than from my own country Oz) The product was exactly as in the picture and what I was looking for. It arrived in only 10 days from USA to Australia.... wow. I was hesitant at first to buy internationally, especially during Covid, but I will not hesitate to do business with Aircraft Spruce from now on. Thanks guys.

Mike R
November 20, 2020

Excellent at a reasonable price.

December 6, 2019

exact replacement, works great, delivered on time

Mark W
November 5, 2019

Received the order in a timely manner. The part was new and installed easily and the price was very good. Thank you!

Michael T
October 17, 2019

Felt liner on the inside dries out when not used for a while. Keep liner wet and it works well. no leaks. I replaced several primers before I stumbled on to this.

June 21, 2018

Takes a little time for this to get lubricated with fuel after installing, but afterwards, it works great.

April 23, 2018

Works as described.

Georgi R
December 11, 2017

Replacement for leaking one, not sure why they leak after a while, maybe the alcohol in gas. Changing to ethanol free gas.

Michael R
September 21, 2017


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: When this primer plunger is depressed, will it stop the fuel flow?

Yes, when depressed, the primer will not allow fuel flow.

Q: Does the plunger lock in the in position?

No, this unit does not have a lock feature.

Q: How much is shipping?

Shipping is calculated in the shopping cart after you enter your destination country / zip code.

Q: What is the length of travel?

Roughly 1-3/4 inch

Q: You just pull the knob out to let fuel port through the primer body when the engine starts to crank and the pulse vacuum draws fuel to the Tee and primer to the carburetor. Some primers require pumping, there would need to be some kind of bellows, something to draw fuel from the Tee and send it to the new nipple in the carb.

Thank for providing this information. We will post it for other customers.