HomeBelts and Cooling > Radiators, Coolers and Related ComponentsGenuine MNC4400AC Engine Coolant Reservoir
Part #: MNC4400AC

Genuine MNC4400AC Engine Coolant Reservoir

⚙️ 12 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
$171.90Free 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: Jaguar, XJ8 and XJR
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Engine Coolant Reservoir for Jaguar XJ8 and XJR

The Genuine MNC4400AC engine coolant reservoir is designed specifically for Jaguar XJ8 and XJR models. This replacement part ensures proper coolant storage and system pressure management, helping maintain optimal engine temperature.

  • Compatible with Jaguar XJ8 and XJR models
  • OEM-quality engine coolant reservoir for precise fit
  • Durable construction to withstand engine bay conditions
  • Part number MNC4400AC for accurate identification
  • Maintains proper coolant levels and system pressure

Product Details and Compatibility

This Genuine engine coolant reservoir (part number MNC4400AC) is engineered to meet the specifications of Jaguar XJ8 and XJR vehicles. It serves as a critical component in the cooling system by storing excess coolant and allowing for thermal expansion. The reservoir is manufactured to OEM standards, ensuring a secure fit and reliable performance under normal operating conditions. Using the correct reservoir helps prevent coolant loss and overheating issues common in these Jaguar models.

Purpose and Common Issues Addressed

  • Prevents coolant overflow and leaks
  • Maintains proper coolant pressure in the system
  • Reduces risk of engine overheating
  • Replaces cracked or damaged reservoirs
  • Ensures consistent coolant circulation

Installation Notes and Tips

Installation of the Genuine MNC4400AC engine coolant reservoir is straightforward for technicians familiar with Jaguar XJ8 and XJR cooling systems. Before installation, ensure the engine is cool and the cooling system is depressurized. Carefully disconnect the old reservoir, noting hose and sensor connections, then install the new reservoir securely. Refill the cooling system with the appropriate coolant and check for leaks after installation.

Quality Assurance and Warranty

The Genuine MNC4400AC engine coolant reservoir is manufactured to meet Jaguar OEM standards, providing reliable durability and fitment. While specific warranty details may vary, Genuine parts typically come with a limited warranty covering defects in materials and workmanship to ensure customer confidence in replacement components.

This part fits 12 vehicles. Search below:

YearMakeModelPositionNotes
2003JaguarXJ8N/A
2003JaguarXJRN/A
2002JaguarXJ8N/A
2002JaguarXJRN/A
2001JaguarXJ8N/A
2001JaguarXJRN/A
2000JaguarXJ8N/A
2000JaguarXJRN/A
1999JaguarXJ8N/A
1999JaguarXJRN/A
1998JaguarXJ8N/A
1998JaguarXJRN/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.