Engines and Components Oiling Systems

Boundary

Boundary 91-05 Mazda Miata MartenWear Billet Gear High Flow Stage 3 Oil Pump w/Back Plate & 2 Shims

$769.00

SKU: B00H BP-S3-SH2

Special Order
Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Boundary Engineering BP Miata Oil Pump features a fully inspected housing, billet oil pump gear, and sealant. Optional high-flow billet backplate is recommended for engines exceeding 7000 RPM. Each pump is ultrasonically cleaned, de-burred, uses mirror-finished gear sets, stainless Torx head fasteners (torqued with Loctite), anaerobic sealant, and assembly lubricant. Blue-printed with a specification sheet.

Fitment

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Specifications

BrandBoundary
Part NumberB00H BP-S3-SH2

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Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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