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Boundary Mazda BP Assembled Oil Pump with Billet Gears

Miata Oil Pump

23993301 - BP-S1
BP-S1 FITS: MIATA 1991.5-2000 longnose crank. NOT RECOMMENDED FOR 2001-2005 VVT MOTORS
The Boundary BP oil pump starts with a fully torn down and inspected housing. This housing is then assembled with our billet oil pump gear and sealed. This pump also and comes with the option for a high flow billet backplate for those running over 7000 RPM consistently.
Pricing: $329.00
Free U.S. Over $150


All assembled billet pumps undergo the following:

  1. Pump is completely taken apart, all parts under go ultrasonic cleaning, air blast, and hand inspection
  2. Pump is hand de-burred
  3. Our industry leading mirror finished gear set is used
  4. Stainless Torx heads replace the stock fasteners
  5. All fasteners are torqued to spec
  6. Loctite applied to fasteners to prevent back out or loosening
  7. Anaerobic sealant applied to critical areas to boost pump up speed and reduce aeration
  8. Assembly lubricant applied to all critical surfaces to get oil flowing fast on startup
  9. Parts are blue printed and issued with specification sheet


Shipping Information

  • Item Requires Shipping
  • 4.0 lbs.
  • W8.0000” x H6.0000” x L14.0000”
  • Free U.S. Over $150

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