Formerly manufactured by Gerdes Products, this primer has an anodized, all aluminum body and an engraved aluminum knob. The inlet and outlet ports are located on the sides of the pump and both are 5/16-24 male thread fitting. Overall length is 3-5/8” and weight is 3.5 oz. New manufacture. Current inlet and outlet locations were changed from original design on 10-27-16.
Made in USA
Note: 2 O-Rings are used per primer. For overhaul, customer will need quantity 2 of 05-19920. See Accessories.
Worked out perfectly. Identical swap out for the primer that was in my J3.
Nice quality primer with a positive lock. Installed this unit on my experimental Super Cub using the standard 1/8 fittings off the old primer. Works perfect and I really like the locking design.
It is not expensive and looks good but my primer is leaking. I have to plug the priming line to eliminate rough running.
Good: It does have a positive lock, which was nice. Bad: Short stroke so doesnt move much fuel. Aluminum, so it wants to bind and gaul. Worked adequately for a couple of years, now wont draw in any fuel. Ill be removing it to re-install the old Lukenheimer primer I had replaced with this one. Disappointed for the cost.
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.
The mounting threads are 5/8", and the primer line threads are 5/16-24 threaded male.
No. This primer is not FAA Approved. It is intended for experimental aircraft use only.
The unit comes with o-rings already installed. Replacement o-rings are available, p/n 05-19920.
PER VENDOR: I'm not exactly sure what is meant by twist lock in the closed position, but I believe the answer is yes. The knob / piston assembly can be pushed in and rotated into a locked position. We have added paperwork to the 'Documents' tab on the web page on how it functions. I hope this helps.
The total length is 3-5/8", but we do not have any documents that gives the output volume.
There is not an aircraft eligibility chart for this product. It is commonly used on many aircraft. It is likely that it nis is the same product you are replacing on the Cub.
These use SAE compression fittings now. The nut for the male fittings on the primer is 61SM-02.