TRQ Coolant Reservoir for Dodge Challenger & Charger V8 (2015–2023) — 21 PSI Cap, Direct-Fit OE Replacement

The TRQ Coolant Reservoir is a direct-fit replacement expansion tank for 2015–2023 Dodge Challenger and Charger V8 engines, complete with a 21 PSI pressurized cap for correct cooling-system performance.

This replacement coolant reservoir is designed to match the OE form and function for Dodge Challenger and Charger models with 6.2L and 6.4L V8 engines from 2015 through 2023. Molded from durable plastic and supplied with the pressurized cap, it restores proper coolant overflow management and helps maintain system pressure. TRQ builds this part to be a straightforward swap for worn or damaged tanks so you can return the cooling system to factory-like operation.

Will this reservoir fit my Dodge Challenger or Charger?

Yes — the tank is built specifically for late-model Dodge HEMI V8 applications. Check your vehicle year and engine size against the supported list before ordering to ensure compatibility.

• Supported models: Dodge Challenger 2015–2023 (V8 6.2L and 6.4L)
• Supported models: Dodge Charger 2015–2023 (V8 6.2L and 6.4L)
• Cross-reference numbers: CH3014157, 68237637AA, 68237637AB
• Confirm fit via your vehicle’s parts lookup or TRQ fitment guides

What comes with the TRQ Coolant Reservoir and what’s not included?

The reservoir arrives with a pressurized cap rated to 21 PSI so the cooling system holds the intended pressure. The assembly does not include a level sensor or mounting hardware, so you’ll reuse factory brackets and the original sensor if required or purchase those separately.

• Included: plastic reservoir and 21 PSI cap
• Not included: level sensor and mounting bolts/brackets
• Replace only if your original tank is cracked, leaking, or the cap fails

How difficult is installation and what tools are needed?

Installation is intended to be user-friendly because the tank is a direct replacement shaped to OE specifications. If you’re comfortable with basic under-hood tasks, the swap generally requires simple hand tools and minimal time; TRQ also provides extensive DIY videos to guide you step-by-step.

• Typical tools: ratchet, common sockets, pliers, and a small drain pan
• Procedure: drain coolant to safe level, remove old tank, transfer sensor if needed, install new tank and cap
• Support: TRQ "View Before You Do" video library for visual guidance

How durable is this reservoir and what warranty applies?

The tank is molded from automotive-grade plastic and built as a pressurized component to match OE performance; it’s engineered to withstand normal under-hood conditions. TRQ backs this part with a limited lifetime warranty for defects in materials and workmanship when used as intended.

• Material: durable automotive plastic designed for coolant exposure
• Cap rating: 21 PSI to maintain correct system pressure
• Warranty: limited lifetime coverage against manufacturing defects

Who this is for: This coolant reservoir is suited for DIY mechanics and professional technicians replacing a cracked, leaking, or failed expansion tank on Dodge Challenger and Charger V8 models (2015–2023). It’s also appropriate for owners who want a direct-fit, pre-assembled tank with an OE-style 21 PSI cap and access to TRQ’s extensive installation video library. If your vehicle requires a level sensor or new mounting hardware, plan to source those separately before beginning the job.