Part Number: 4ADH

SHROUD, 3.96 OD, Modified

Short delay in shipment:
Ship date will be confirmed by customer support upon receipt of your order, or you may contact us now to confirm lead time.

Product Details

Note: Repair/service part only for use on full STC kit P/N KIT #11.



Vacuum Pump Cooling Kit

P/Ns KIT #10KIT #11, and KIT #20

Increase the life of your vacuum pump!


  • Uses ram air to keep cooler air flowing around the pump housing for longer life
  • Installation hardware included


Vacuum pump not included.


warningWARNING: Cancer and/or Reproductive Harm -

Eligible Aircraft

Make Series Model Beginning S/N Ending S/N Quantity Per Aircraft Location Comment Eligibility Chart
Many Many Many 0 ZZZZZZZZZZZZZZZ Approved replacement when used with approved kit #11.

Kits That Include 4ADH

Please verify product details for suitability for your application.