Part Number: MC553-885

CONTROL, Alternate Air

Eligibility Notice

Please verify that this product is eligible for your aircraft before adding it to your cart.

Click here to view product eligibility.

Product Details

Alternate Air Controls for Piper Aircraft 
Longer life and save up to $100

  • Special, heavier wire for more fatigue strength and reliability
  • Improved friction mechanism
  • Reduced vibration wear
  • Anti-rotate feature to reduce stress on the inner wire
  • High temperature Teflon lined conduit
  • Realistic price


The most often replaced controls just got better!

High quality replacement knobs duplicate the original Piper color and shape to maintain the original factory appearance of the instrument panel. To select the correct knob for your aircraft, please see the Eligibility Chart.


Also see CA70371-002 or U70371-000 for swivel fittings (bug nuts).

warningWARNING: Cancer and/or Reproductive Harm -

Eligible Aircraft

Make Series Model Beginning S/N Ending S/N Quantity Per Aircraft Location Comment Eligibility Chart
Piper PA-32 PA-32R-301T 3229001 3229003 1 Control Assembly: Alternate Air 6513
Piper PA-32 PA-32R-301T 32R-8029001 32R-8629008 1 Control Assembly: Alternate Air 6513

Frequently Asked Questions

I purchased a laser engraved knob and the thickness of the marking is very shallow. What kind of wear resistance can I expect?
Why is my new engine control too long/short?
What is the minimum bend radius for my engine control?
How do I trim my engine control to length?
How do I clean and sanitize a McFarlane Push-Pull Control?

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Please verify product details for suitability for your application.