2003 Nissan Altima Engines

3 products listed as compatible with this vehicle by the retailer feed.

• All 2003 parts
• Engine Gaskets
• Timing Components
• Engine Internals
• Engine Bearings

• 

  Spartan Engine Long Block Nissan QR25DE Engine Remanufactured, 347

  SpartanMPN 347Refurbished

  In stock

  $3,001.99

  Listed as compatible with this vehicle by the retailer feed.

  Check price
• 

  Spartan Engine Long Block Nissan QR25DE Engine Remanufactured, V347

  SpartanMPN V347Refurbished

  In stock

  $3,150.99

  Listed as compatible with this vehicle by the retailer feed.

  Check price
• 

  Spartan Engine Long Block Nissan VQ35DE 6/01-10 Engine Remanufactured, 344A

  SpartanMPN 344ARefurbished

  In stock

  $4,365.99

  Listed as compatible with this vehicle by the retailer feed.

  Check price

This site contains affiliate links. We may earn a commission if you buy through them. We do not sell these products or guarantee merchant inventory. Compatibility is listed by the retailer feed for this vehicle; it is not an OEM confirmation. Catalog snapshot: Aug 15, 2026.