Aluminum Coolant Overflow Expansion Tank for Dodge Charger (2006-2010) 2.7L 3.5L 5.7L 6.1L

Heavy-Duty Aluminum Coolant Overflow Expansion Tank for 2006-2010 Dodge Charger (LX)

What it Does: The Aluminum Coolant Overflow Expansion Tank replaces the failure-prone plastic reservoir on the 2006-2010 Dodge Charger to eliminate cooling leaks and maintain consistent operating pressure.

The Stock Dodge Charger Expansion Tank Failure

The factory pressurized recovery bottle on the LX platform relies on molded plastic that degrades rapidly under repeated thermal cycles and radiator heat soak. Over time, plastic fatigue causes seam splits, fractured filler necks, and cracked bottom hose barbs. These structural failures cause sudden loss of coolant pressure, fluid leaks, and dangerous air pocket ingestion that risks localized overheating on high-output HEMI and V6 cylinder heads.

The Engineering Solution

Engineered as a permanent fix, this reservoir is fabricated from durable 0.100-inch thick-wall aluminum that resists pressure spikes, vibration, and UV breakdown. Featuring precision TIG-welded seams and heavy-duty connection ports, it eliminates common split points inherent to blow-molded units. Designed as a drop-in replacement, it mounts directly to the chassis using OEM hardware and reuses factory coolant lines to restore system integrity under OE part number 4596466AG.

Technical Specifications

Compatibility

• 2006-2010 Dodge Charger SE (2.7L V6)
• 2006-2010 Dodge Charger SXT (3.5L V6)
• 2006-2010 Dodge Charger R/T (5.7L HEMI V8)
• 2006-2010 Dodge Charger SRT8 (6.1L HEMI V8)

Frequently Asked Questions

Does this fit the LX Charger?

Yes, this is a direct fit for the 2006-2010 Dodge Charger equipped with the 2.7L, 3.5L, 5.7L, or 6.1L engine.

Does this tank reuse the stock cooling system cap?

Yes, the precision-machined neck is engineered to retain factory-threaded expansion caps to maintain the proper pressure relief threshold.

The Dodge Muscle Standard

Demanding modern muscle platforms produce intense under-hood thermal loads; this all-aluminum expansion tank provides the structural durability needed to endure sustained hard acceleration without thermal cracking or pressure loss.