Peterson Fluid Systems 08-0455 is an adjustable vacuum regulator that regulates crankcase vacuum and holds it at a steady level. Vacuum can be set from as high as 29.7 in/hg down to 2 in/hg. It fits a -12 AN port (1 1/16-12 thread) and includes a -12 AN port aluminum weld bung for the valve cover. The regulator is CNC machined aluminum, anodized, and uses a cellulose filter element.
Notes:
- Replacement element: 08-0455-010. Replacement weld bung: 17-0012.
- A retro kit, 08-0455-RETRO, converts an old style regulator to the new design.
Included:
- -12 AN port aluminum weld bung
Specifications:
- Brand: Peterson Fluid Systems
- Part Number: 08-0455
- Type: Adjustable crankcase vacuum regulator
- Adjustment Range: 29.7 in/hg to 2 in/hg
- Port: -12 AN
- Thread: 1 1/16-12
- Height: 6 in
- Width: 2.312 in
- Hex: 1.375 in
- Element: Cellulose, replacement 08-0455-010
- Material: CNC machined aluminum, anodized
- Finish: Black anodized
FAQ
What vacuum range does the Peterson Fluid Systems 08-0455 cover?
It can regulate crankcase vacuum from as high as 29.7 in/hg down to 2 in/hg.
How does the 08-0455 mount?
It fits a -12 AN port with a 1 1/16-12 thread and includes a -12 AN port aluminum weld bung for the valve cover.
What is the replacement element for the 08-0455?
The replacement cellulose element is part number 08-0455-010.
Can an older regulator be updated?
Yes. Retro kit 08-0455-RETRO switches an old style regulator to the new design.
How big is the 08-0455?
It is 6 in tall and 2.312 in wide with a 1.375 in hex.

