Mazda BP Oil Pump Assembly – Stage 3

Stage III 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 III Pumps have these additional modifications:

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

All assembled billet pumps undergo the following:

• The pump is thoroughly taken apart; all parts undergo ultrasonic cleaning, air blast, and hand inspection.
• The pump is hand de-burred.
• Our industry-leading mirror-finished gear set is used
• It is assembled with our Black Series ported gerotor with dual-stage MartenWear treatment
• When closing the pump up, we use our Billet Steel Anti-Cavitation oil pump cover
• Stainless Torx heads replace the stock fasteners
• All fasteners are torqued to spec
• Loctite applied to fasteners to prevent back out or loosening
• Anaerobic sealant applied to critical areas to boost pump up speed and reduce aeration.
• Assembly lubricant applied to all critical surfaces to get oil flowing fast on startup
• Parts are blueprinted and issued with a specification sheet.

Part Number BP-S3 FITS:

1. MIATA 1991.5-2005