KAX CU2978 Engine Radiator Replacement Compatible with 2003-2007

In this review the KAX CU2978 Engine Radiator Replacement is presented as a direct-fit option for owners of 2003-2007 Murano models looking to restore reliable engine cooling without overpaying. The bottom line: it is aimed at shoppers who want an OEM-compatible radiator with solid thermal performance and a straightforward install, and the single biggest reason to buy is its direct match to multiple OEM part numbers that simplifies fitment for the supported Murano years.

Key Features

• Perfect fit: Designed specifically for 2003-2007 Murano, the radiator replaces the original unit using the listed OEM part numbers for a seamless fitment process.
• OE compatibility: Matches OEM numbers 21460CA000, 21460CA010, 21460CC00A, 21460CG000 and 21460CM80B so it aligns with factory replacement expectations.
• Core dimensions: The 5/8 in core thickness with a core width of 28-5/8 in and core height of 17-11/16 in provides the concrete sizing needed for correct installation and cooling area.
• Durable materials: Aluminum core and high-grade plastic water tanks resist corrosion and offer good thermal conductivity for consistent cooling.
• Tested reliability: Units are leak-proof, pressure, aging and durability tested under a quality management system for increased long-term stability.
• Protected delivery: Reinforced shockproof packaging with foam and bubble protection reduces the risk of damage during transit.

Who It's For

The radiator is best for Murano owners from 2003 through 2007 who prefer a direct OEM-number matched replacement and for independent mechanics or experienced DIYers who can verify vehicle fitment and handle installation or supervise a professional. It is also suitable for anyone prioritizing improved cooling efficiency through high-density multi-louver fins and a larger heat dissipation area.

Those who should look elsewhere include buyers who need a radiator for a different vehicle make or year, or customers who require premium transmission cooler integration where some users reported mixed experiences with transmission cooler fittings. If absolute factory-original supplier provenance is required, an OEM-sourced unit may be preferred.

Pros & Cons

Pros

• Direct fit for 2003-2007 Murano using multiple OEM part numbers for confident compatibility.
• High-density multi-louver fins and aluminum core deliver efficient heat dissipation and good thermal conductivity.
• Comprehensive testing and reinforced packaging reduce the chance of receiving a damaged or leaking unit.
• Offers strong value compared with dealer-priced replacements.

Cons

• Build quality feedback is mixed and a small number of users report issues with transmission cooler fittings or leakage, so professional installation is recommended.
• Not the best choice for vehicles outside the specified Murano years.

Specifications

Our Verdict

The KAX CU2978 is a practical, value-oriented radiator for 2003-2007 Murano owners who want an OEM-number matched replacement and improved cooling performance. It stands out for its measured specification sheet, aluminum core construction and protective packaging; however, buyers should verify fitment and consider professional installation because some users report mixed results with fittings and leakage. Overall it is a cost-effective alternative to dealer units for most owners.

Frequently Asked Questions

Will this radiator fit my Murano?
It is compatible with 2003-2007 Murano models; verify fitment against the listed OEM part numbers and vehicle configuration before installing.

What materials are used?
The unit uses an aluminum core with high-grade plastic water tanks and high-density multi-louver fins for better heat dissipation.

Is installation difficult?
Installation is straightforward for a trained mechanic, but professional installation is recommended due to some reports of fitting and leakage issues.