HomeEngine > Cylinder Block ComponentsDJ Rock OP638 Engine Oil Pump
Part #: OP638

DJ Rock OP638 Engine Oil Pump

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⚙️ 10 vehicles fit this part
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Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$178.08Free Shipping
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Nissan, Altima and Sentra
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Engine Oil Pump for Nissan Altima and Sentra

The DJ Rock OP638 engine oil pump is designed specifically for Nissan vehicles, including the Altima and Sentra models. This pump ensures consistent oil flow to maintain engine lubrication and performance under various driving conditions.

  • Compatible with Nissan Altima and Sentra models
  • Part number OP638 for precise identification
  • Engine oil pump designed to maintain optimal oil pressure
  • Durable construction for long-lasting engine protection
  • Direct replacement for factory-installed oil pumps

Product Details and Specifications

The DJ Rock OP638 engine oil pump is engineered to meet the exact specifications required by Nissan Altima and Sentra engines. It delivers reliable oil circulation, which is critical for reducing friction and wear on engine components. This pump is manufactured with quality materials to withstand high temperatures and pressures typical in engine operation. The part number OP638 ensures compatibility and easy reference when servicing or replacing the oil pump in your Nissan vehicle.

Common Applications and Problem Resolution

This engine oil pump is used to maintain proper oil pressure and flow within the engine. It addresses several issues related to engine lubrication, including:

  • Low oil pressure warnings or alerts
  • Engine overheating due to insufficient lubrication
  • Unusual engine noises caused by inadequate oil flow
  • Oil pump failure leading to engine damage
  • Reduced engine performance linked to oil circulation problems

Installation Notes and Tips

When installing the DJ Rock OP638 engine oil pump, ensure the engine is cool and the vehicle is securely lifted if necessary. Drain the engine oil before removal of the old pump. Verify the part number OP638 matches your Nissan Altima or Sentra model requirements. Follow manufacturer torque specifications for mounting bolts and replace any gaskets or seals to prevent leaks. After installation, refill with the recommended engine oil and check for proper oil pressure during startup.

Quality Assurance and Warranty Information

DJ Rock engine oil pumps undergo rigorous quality control to meet OEM standards for fit and function. The OP638 part is built to provide consistent performance and durability. While specific warranty details may vary, DJ Rock typically offers coverage against manufacturing defects to ensure customer confidence in the product's reliability.

This part fits 10 vehicles. Search below:

YearMakeModelPositionNotes
2006NissanAltimaN/A
2006NissanSentraN/A
2005NissanAltimaN/A
2005NissanSentraN/A
2004NissanAltimaN/A
2004NissanSentraN/A
2003NissanAltimaN/A
2003NissanSentraN/A
2002NissanAltimaN/A
2002NissanSentraN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.