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Curtis Oil Drain Valve Assemblies

From $49.75 to $114.75
Product Type Description Application Part No. Price Buy
Oil Drain ValvesCurtis Oil Drain Valve -1/2" -20 Brass Lockwire drilled Action-Spiral, Lock OpenJabiru 2200, 3300
-Curtis Oil Drain Valve - 12mm - 1.75mm Brass, Length 1.45" Lock Wire Drilled Action-Spiral, Lock OpenRotax 912F2, 912F3, 912F4, 914F2, 914F3, 914F4
90 Degree AdapterJabiru 90 Degree Adapter CCA-2480Jabiru 2200, 3300
-Rotax 90 Degree Adapter Thread Size:
12mm - 1.75mm, Internal/External
brass CCA-2470
Rotax 912F2, 912F3, 912F4, 914F2, 914F3, 914F4
Adapter AssemblyOil Drain Valve Adapter AssemblyRotax
-Oil Drain Valve Adapter AssemblyJabiru
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Curtis Superior Valve Co., Inc. makes a wide range of valves to solve a wide range of problems. We have over forty (40) standard valve designs engineered, manufactured and tested to exacting specifications.

Our valves have aerospace, military and industrial applications, most are listed as 'Qualified Products' by the Air Force, Army, Navy and the FAA. Our Quality Systems are compliant and meet International Standard ISO 9001, Military Standard Mil-I-45208 and FAA TSO-C76.

Curtis Superior Valve standard designs are spring loaded closed. Valve springs are made from non-corrosive, long lasting stainless steel. Valve bodies and moving parts are manufactured to precise standards with low tolerances and are available in anodized aluminum, brass, cadmium plated brass, and stainless steel. Seals are made of a specially compounded "cure dated" synthetic rubber to withstand a wide variety of liquids over a broad temperature range. The unique wedge seal design is superior to an o-ring seal. The wedge seal prevents leakage.

Curtis Superior Valve is experienced in valve design and can help solve your valve problems. In most cases a standard Curtis Superior Valve will do the job. Or possibly a slight modification of a production unit will answer a specific problem. We will be glad to give you any assistance you may require with your Quick Drain Valve application.


Curtis Superior Valves are designed for installation in a standard NPT port for NPT threaded valves or an AND-10050 stlye port for UNF threaded valves. Use a sealant on NPT threaded valves or a fuel resistant o-ring of the proper size for UNF threaded valves. Refer to aircraft manufacturers torque specifications for the aircraft in which it is being used. Curtis Superior Valves require no special maintenance. Keep them reasonably clean and replace according to the prescribed synthetic rubber maintenance schedule for the aircraft in which they are used or 10 year usable life per Curtis Superior Valve whichever occurs first. Curtis Superior Valves cannot be OVERHAULED. Replace the entire valve per the maintenance schedule of the aircraft in which it is used or usable life per Curtis Superior Valve should it begin to leak.


Due to the low replacement cost of Curtis Quick Drain Valves versus the cost of replacement seals, breakage of seals in overhaul installations and labor costs, it is not recommended they be overhauled. Replace the entire valve in accordance with the instructions in MAINTENANCE above or should they begin to leak.

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WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

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Perfect! Should have had this sooner. Oil changes are much cleaner, and takes less time because no big cleanups.

Robert J Verified Purchase


December 29, 2022

Have one on my Lyciming … just had to get one when I bought a Rotax powered craft

Ame F Verified Purchase


August 6, 2021

Saves new copper washers used every time for a crush fit, and makes for a very clean, non messy oil change on the Rotax 912 ULS in my RV-12. Highly recommend the drain vent.

September 22, 2020

My oil reservoir is not easily accessible, making oil changes a chore. The quick drain valve is a nice improvement.

Beachflight A
August 27, 2020

Good quality. Fits well.

Dietrich M
March 2, 2017

This valve is not good. I tried put on in mine thread broke in hand tight and strip. Now I have to deal with return and all that hassle. Paid top droller but product is Shitty.

Pramod R
September 9, 2018


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.

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