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Boundary Nissan RB26 MartenWear Treated Billet Oil Pump Gear (Fits OEM Housing 81mm)

$399.00

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Boundary Nissan RB26 MartenWear Treated Billet Oil Pump Gear (Fits OEM Housing 81mm)

$399.00

$399.00

Designed for high-performance Nissan RB26 engines, this Boundary MartenWear Treated Billet Oil Pump Gear is a critical upgrade for the 81mm OEM oil pump housing.

The RB26 platform is often limited by its factory sintered oil pump gears, which are prone to shattering under high-RPM stress or aggressive rev-limiter use. Boundary addresses this by utilizing precision-machined billet steel for maximum structural integrity. The addition of their proprietary MartenWear surface treatment significantly increases surface hardness and reduces friction, providing a durable solution that stands up to the demands of track and street-performance builds.

  • Direct replacement for the inner and outer gears in 81mm OEM housings
  • Machined from high-strength billet steel to prevent fatigue and shattering
  • MartenWear treated for superior wear resistance and reduced friction
  • Ensures consistent oil pressure and reliability during high-RPM operation
  • Manufacturer Part Number: RB26-81-OPG-M

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