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King Engine Bearings Nissan SR20DE/SR20DET 2.0L XP Race Main Bearing Set - Size STDX, 5 Pairs

King Engine Bearings SKU: KINGMB5243XPSTDX
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King XP series race main bearing set for the Nissan SR20DE and SR20DET 2.0L DOHC 16-valve engine, turbo included. King describes XP as a tri-metal lead bronze layered material with a nano-scaled hardening process applied to the Babbitt overlay, rated to withstand 10,200 PSI - that overlay is what lets a race bearing tolerate the load spikes and the momentary metal-to-metal contact a boosted SR20 puts through the mains. The set is supplied as King's Race pMaxBlack construction.

This listing is the STDX (StandardX) size. King catalogues STDX as a size in its own right, separate from plain STD, in the same MB5243XP family that also runs to 0.25mm, 0.026in, 0.5mm and 0.025in undersizes. STDX is ordered against a standard-diameter journal, like STD, but is a distinct King size code - it is not an undersize and it is not interchangeable with STD by name alone. King does not publish a numeric wall thickness or clearance figure separating STDX from STD, so we are not quoting one. Measure your journals and your target clearance, and contact us if you need us to confirm the size with King before you order.

  • Set contains 5 pairs - 10 individual bearing shells - covering main positions 1, 2, 3, 4 and 5
  • Fits Nissan SR20DE and SR20DET, 2.0L DOHC 16v, including turbo
  • King XP series: tri-metal lead bronze layered material with nano-scaled hardened Babbitt overlay
  • King rates the XP material to withstand 10,200 PSI
  • Race pMaxBlack construction
  • Size StandardX (STDX)

Specifications

Type Performance main bearing set
Bearing Size StandardX (STDX)
Set Contents 5 pairs (10 bearing shells), main positions 1-5
Material XP tri-metal lead bronze with nano-hardened Babbitt overlay (Race pMaxBlack)
Load Rating 10,200 PSI (King XP material rating)
Engine Nissan SR20DE / SR20DET, 2.0L DOHC 16v, incl. turbo
Part Number KINGMB5243XPSTDX

This part fits:

Year Make Model Submodel
1991-1996,1999-2002 INFINITI G20 Base
1994-1996,1999-2002 INFINITI G20 T
1995-1998 Nissan 200SX SE-R
1991-1993 Nissan NX SE
1991-1993 Nissan NX XE
1998-2001 Nissan Sentra SE
1991-1994 Nissan Sentra SE-R

Shipping

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  • Oversized items ship by freight and take longer.
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Returns

  • 30-day returns on new, uninstalled items in original packaging with all hardware.
  • Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
  • Installed or used parts can’t be returned — confirm fitment before you install.
  • Special orders and custom items are final sale.
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Full details: Shipping Policy · Refund Policy

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