Peterson Fluid Systems · New
Peterson Fluid Systems Regulator Adjustable Vacuum
MPN 08-0455 · Store SKU pfs08-0455
Supplier stock checked 11/7/2026, 8:20:45 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
Peterson’s adjustable vacuum regulator is on the leading edge of engine management. It has been proven to regulate crankcase vacuum and hold a steady level through extensive testing. Vacuum can be regulated from as high as 29.7 in/hg down to 2 in/hg. Retro kit available to switch your regulator to the new design. Fits -12 port AN. Includes aluminum weld bung for valve cover. ADJUSTABLE VACUUM REGULATOR. ALLOWS FILTERED AIR INTO ENGINE TO REGULATE CRANKCASE VACUUM FROM 29.7 IN/HG TO 2 IN/HG INCLUDES ALUMINUM WELD IN BUNG
Manufacturer fitment & guides
Check 08-0455 against the manufacturer’s application information below.
A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.
Part-specific notes
- California Proposition 65: Y