Radiator for Nissan Sentra (2007-2012) 2.0L 2.5L

Direct-Fit Replacement Radiator for 2007-2012 Nissan Sentra (B16)

What it Does: The replacement radiator restores OE-spec thermal regulation to the cooling circuit on the 2007-2012 Nissan Sentra, mitigating elevated operating temperatures and preventing head gasket damage caused by end-tank leaks.

The Stock Nissan Sentra Cooling Weakness

Factory cooling systems in the B16 chassis are vulnerable to long-term heat cycling and pressure fatigue. The original equipment radiator features glass-filled nylon end tanks clamped to an aluminum core via crimped mechanical tabs. Over years of thermal expansion, the polymer tanks become brittle, developing hairline stress fractures at the 1-3/8 inch hose necks and header tank seams. Simultaneously, internal corrosion and silicate precipitation in neglected coolant narrow the narrow 0.63-inch tube passages. This flow restriction reduces core thermal efficiency, inducing coolant boiling and risking catastrophic cylinder head warpage on both the MR20DE and performance-oriented QR25DE platforms.

The Engineering Solution

Constructed to restore OEM thermal rejection thresholds, this direct-fit downflow radiator features a high-grade 26.7 in x 14.77 in aluminum core configured with high-density louvered cooling fins. This geometry breaks thermal boundary layers to accelerate heat dissipation through the ambient airflow stream. The core tubes are furnace-brazed to heavy-gauge header plates, backed by reinforced composite end tanks secured with uniform high-tension crimps. Each unit is leak- and pressure-tested prior to shipment to verify mechanical joint integrity, matching exact factory mounting points and interchange requirements for OEM part numbers 21400-ET000, 21410-ZW40A, and CU2998.

What's Included

• 1 x Direct-Fit Replacement Radiator

Technical Specifications

Compatibility

• 2007-2012 Nissan Sentra 2.0L (Base, S, SL, SR)
• 2007-2012 Nissan Sentra 2.5L (SE-R, SE-R Spec V)

Frequently Asked Questions & Fitment Warnings

Does this fit the B16 Sentra?

Yes, this is a direct fit for the 2007-2012 Nissan Sentra equipped with the MR20DE or QR25DE engine. On 2.0L models, confirm your transmission type against the original unit's integrated cooler line provisions before installation.

Do I need to bleed the cooling system after replacement?

Yes, you must bleed trapped air from the heater core and engine block passages to avoid localized hot spots and inaccurate temperature readings.

The Nissan Durability Standard

Built to handle sustained high-rpm driving on QR25DE SE-R models as well as daily commute duty on MR20DE configurations, this radiator provides baseline reliability and leak-free fluid containment under strict factory operational tolerances.