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Primer Overhaul Kit

$6.00/Each
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Part# 05-03637

Overview

The kit is replaces the worn O-rings (2) on the primer pump used on non-fuel injected engine installations. The primer seals frequently are not re-lubricated until someone complains the primer isn't working or the engine is hard starting. This is most evident by the pump being hard or stiff to operate. Generally speaking, by the time the pump stops performing, the seals are worn (to the point that lube is of little value) and must be replaced.
   
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Application

  • Beech 19/23 Series
  • Cessna 120,140,150,152
  • Cessna 170, 172, 175, 177
  • Cessna 180, 182, 185
  • Cessna 190, 195,
  • Cessna 205, 206, 207
  • Cessna 210
  • Cessna 336, 337
  • MK20 Series
  • PA-24, PA-28, PA-28R, PA-44

In The Box

  • 2- O-rings
  • 1 packet of Seal Lube
  • Detailed instructions

Reviews

Easy to order and install. Glad to have found the kit.

Jerome T Verified Purchase

PRIMER OVERHAUL KIT

May 30, 2023

Ron E Verified Purchase

PRIMER OVERHAUL KIT

May 3, 2023

Michael H Verified Purchase

PRIMER OVERHAUL KIT

April 25, 2023

This was very inexpensive , is easy to install, and worked perfectly - the lube is worth the price and more. My primer was so hard to use - no more - it works like new again!

Kevin A Verified Purchase

PRIMER OVERHAUL KIT

April 18, 2023

Great Stuff. Works as advertised.

Ed C Verified Purchase

PRIMER OVERHAUL KIT

March 8, 2023

worked great, perfect fit.

Scott H Verified Purchase

PRIMER OVERHAUL KIT

March 7, 2023

Good quality. Very simple solution to primer trouble.

James E Verified Purchase

PRIMER OVERHAUL KIT

February 7, 2023

Quick and easy, works great

Blaine W Verified Purchase

PRIMER OVERHAUL KIT

January 4, 2023

Worked perfect, and for a small amount we saved a replacement of the primer pump.

Arne R Verified Purchase

PRIMER OVERHAUL KIT

November 29, 2022

Fits easy to install

Glen F Verified Purchase

PRIMER OVERHAUL KIT

November 8, 2022

Q&A

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: What are the dimensions of the o-rings in this Primer Overhaul Kit? I have a Lukenheimer primer on a Cessna 140.

The dims are as follows: 3/8" I.D. x 1/2" O.D. x 1/16" cross width of o-ring.

Q: FYI: I just measured the O-rings on an Essex primer. They are the same dimension as the O-rings in this kit.

Ok thank you for the information. We will post it for other customers.

Q: What is the MS number for the o-rings in this kit?

MS29513-012

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