; Two styles allow fastening through valve covers (No. 22637) or threaded directly into lifter valley (No. 22636); Vacuum relief point is adjustable by shimming an internal spring to get the precise amount of vacuum desired; Can be disassembled for easy cleaning and maintenance and works with any vacuum level; They are made of 6061 T6 Billet aluminum and have a clear, attractive finish
  • Spring Style
  • 3/8 NPT
  • Threads into lifter valley
  • Vacuum relief point adjusts by shimming an internal spring for exact vacuum amount
  • Works with any vacuum level
  • 6061 T6 Billet aluminum
  • Not legal on pollution-controlled vehicles

Fast Efficient Shipping

Through our distribution network Deliveries can be as fast as Next Day Delivery.
Delivery times vary by destination, tracking information is provided with every purchase.

Get it Installed

JB's Power Centre offers on-site professional installation services in Calgary and Edmonton, AB.
We have on staff licensed Mechanical Technicians as well as MECP Certified 12-Volt Technicians.

* Extend your products Manufacturer Warranty

All products include a manufacturer warranty, but you can extend this warranty with
JB's Purchase Protection Plan
*Available on select products.