Boundary 91.5-05 Ford/Mazda BP (All Types) I4 Oil Pump Assembly (2 Shims - 72 PSI / w/o Crank Seal)

Stage II pumps increase the overall flow by machining a deeper pocket into the oil pump and fitting larger gears in this pocket. This increases the strength of the pump, increases mid-range oil pressure, and increases the strength of the oil pump gears.
The Stage II Pumps have these additional modifications:

• Larger gears are fitted into the oil pump which increases mid range protection and insures compatibility with VVT.
• The pump is shimmed increasing maximum warm pressure from 60 PSI to 70 PSI.

ADDITIONAL INFORMATION

title: Pump Assembly Ford Mazda BP I4 ALL TYPES 91.5-05 Escort GT Mazda Miata Billet Gear High Flow Boundary Pumps
country_of_origin: USA
cylinders: I4
material_l: Chromoly Steel Billet
prop_65_warning: CALIFORNIA WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
style: High Flow
vehicle_type: Car
universal: No
sold_as: Each
liter:

FITMENT NOTES

1991,1997,Mazda,Miata
1991,1996,Ford,Escort,GT
1991,1991,Mazda,Miata,SE
1992,1993,Ford,Escort,LX-E
1993,1993,Mazda,Miata,LE
1994,1997,Mazda,Miata,M Edition
1997,1997,Mazda,Miata,STO
1999,1999,Mazda,Miata,10th Anniversary
1999,2005,Mazda,Miata
2000,2005,Mazda,Miata,LS
2000,2003,Mazda,Miata,SE
2003,2003,Mazda,Miata,Shinsen
2004,2005,Mazda,Miata,Mazdaspeed