Skip to main content

Free Shipping on every order over $50 in the Lower 48

and pay NO Sales Tax!

(0) Write a Review

NP228 NP229 Control Diaphragm

Part Number:
Calculated at Checkout

Have a Question? Ask a product expert! Call or Text 253-320-7604

Product Details

We have a replacement Vacuum Diaphragm Shift Motor available again for the NP228 & NP229 Transfer Cases!!!   These are machined out of billet aluminum and are fully rebuildable, and have a brand new diaphragm!   This is the transfer case mounted control diaphragm for switching in and out of 4 Wheel Drive.

Made in USA!

Original Part Number: 53004597 / 5300 4597 / 8353004597

Also Fits the NP128 and NP129 Transfer Cases (AMC Eagle)!

2 Clips are Included (1 for Shaft / 1 for Body)



  • Fits All with NP228 or NP229 Transfer Case (Full Size Jeeps, XJ's etc)
  • Fits All with NP128 or NP129 Transfer Case (AMC Eagle, etc)
  • Fully Rebuildable
  • New Diaphragm
  • Made in the USA!

Reviews (0)

There are currently no reviews for this product. Please write a review by clicking the button below.