If you drive a Dodge Charger RT, keeping the cooling system in good shape is one of the simplest ways to reduce the risk of coolant loss, overheating, and roadside trouble. Replacing a cracked, cloudy, or leaking coolant reservoir, also called an overflow tank or recovery tank, helps you monitor coolant level clearly and keeps the system working as intended.
Below are three replacement coolant reservoir tanks that fit Charger, Challenger, and related Chrysler 300 applications in the 2011-2023 range. Each one has a different fitment window, cap setup, and OEM interchange focus, so confirm your year, engine, and part number before ordering.
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Top Picks
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Category |
Product |
Score |
|---|---|---|
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🏆 Best Overall |
92/100 |
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💰 Best Value |
88/100 |
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⚡ Best Premium Replacement |
KarParts360 Coolant Recovery Tank, Replacement for 68237637AB (2015-2023) |
84/100 |
Quick Verdict
Best overall: Choose the NewYall tank if you want the broadest listed year range and a cap-included replacement for many 2011-2023 Charger, Challenger, and Chrysler 300 applications.
Best value: Choose the X4XZ 603-380 tank if your vehicle matches the 2011-2021 fitment range and you want an OE-style reservoir with a cap included.
Best OEM-number match: Choose the KarParts360 recovery tank if your 2015-2023 Charger or Challenger matches OEM 68237637AB and you do not mind reusing or buying the cap separately.
Fitment Note Before You Buy
Coolant reservoir fitment is year, engine, and part-number sensitive. Before ordering, compare the Amazon fitment tool, your VIN, your current reservoir shape, hose locations, cap style, and OEM number. For a Dodge Charger RT, pay close attention to whether the listing covers your exact 5.7L Hemi model year and whether the cap is included.
Do not open the coolant reservoir or radiator cap while the engine is hot. Let the engine cool fully, use the coolant type recommended in your owner’s manual, and bleed air from the system after replacement if your service procedure requires it.
Selection Criteria
When choosing these reservoir tanks, I focused on the factors that matter most for a Charger RT owner: direct-fit compatibility, listed model-year range, cap inclusion, OEM or OE-style interchange numbers, visible coolant level monitoring, installation simplicity, and buyer hesitation points such as leaks, hose routing, and plastic durability.
Fit is the most important factor. A reservoir that looks similar but uses a different hose location, cap style, or mounting point can leak or turn a simple repair into a frustrating return. Value also matters because a cap-included assembly can save you an extra purchase, while an OEM-number-focused replacement can be worth it when you want the closest match to the original tank.
NewYall Coolant Reservoir Tank
This NewYall reservoir is the best overall pick if you want a simple cap-included replacement that covers a wide 2011-2023 Charger, Challenger, and Chrysler 300 fitment range. It is designed as a direct replacement, which means it should be a better choice than trying to adapt a universal tank.
For a Charger RT owner, the biggest advantage is convenience. If your original tank is cracked, yellowed, or hard to read, this replacement can restore a clean coolant fill point and make routine level checks easier. Just confirm your exact year, engine, and reservoir shape before ordering.
Why You’ll Like It
You’ll like this one if you want a straightforward swap with the cap included and you do not want to hunt for separate small parts. It is also the easiest recommendation for shoppers who want one listing that covers a broad late-model Charger/Challenger range.
Pros and Cons
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Pros |
Cons |
|---|---|
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✅ Listed for 2011-2023 Charger, Challenger, and Chrysler 300 models |
❌ Still requires exact year, engine, and shape confirmation |
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✅ Cap-included design can save an extra purchase |
❌ Aftermarket replacement, not factory-branded OEM |
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✅ Direct-fit style helps avoid universal-tank modification issues |
❌ No specific eco or material certifications listed |
Review Checkpoints
Before buying, check the current Amazon reviews for fitment notes on your exact model year, cap sealing, hose alignment, and whether buyers mention leaks after heat cycles.
What It Fixes
Replaces cracked, leaking, stained, or hard-to-read reservoirs and helps restore reliable coolant level monitoring.
Who Should Buy This
- Charger, Challenger, or Chrysler 300 owners whose vehicle matches the 2011-2023 fitment range
- Drivers who want a cap-included replacement
- DIY buyers who want a direct-fit style tank instead of a universal reservoir
Who Should Avoid This
- Anyone whose OEM part number, hose routing, or mounting points do not match the listing
- Buyers who specifically want a Mopar-branded factory part
Eco Notes
No specific eco certifications are listed. Replacing a failed reservoir can help reduce coolant waste and prevent larger repair waste, but the part itself appears to be a standard automotive plastic replacement.
Key Benefits
- Broad listed fitment for 2011-2023 Chrysler 300 and Dodge Challenger/Charger models
- Cap-included replacement for added convenience
- Direct-fit style for easier installation
- Helps restore clear coolant level checks
Check Product Details on Amazon
603-380 Coolant Overflow Reservoir Tank
This 603-380 coolant overflow reservoir is the best value pick if your Charger RT falls within the 2011-2021 fitment range and you want a cap-included replacement tied to OE-style numbers 55111260AB and 55111260AF.
The clear tank design is practical because it helps you check coolant level without guessing through stained plastic. It is especially useful if your current reservoir is cloudy, leaking at the seam, or no longer holding coolant properly.
Why You’ll Like It
You’ll like this tank if you want an affordable, no-fuss replacement with a cap included and clear OE-style part-number guidance. It is a strong choice for older Charger RT model years that match the listing.
Pros and Cons
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Pros |
Cons |
|---|---|
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✅ Listed for many 2011-2021 Chrysler 300, Challenger, and Charger V6/V8 models |
❌ Does not cover the full 2011-2023 range listed by some other options |
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✅ Replaces 55111260AB and 55111260AF when fitment matches |
❌ Aftermarket part rather than factory-branded OEM |
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✅ Cap included for a more complete replacement |
❌ No specific eco or material certifications listed |
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✅ Clear design helps with quick coolant checks |
Review Checkpoints
Check current buyer feedback for your exact model year, especially comments about the cap seal, mounting tabs, hose nipple alignment, and whether the tank stays leak-free after several drives.
What It Fixes
Replaces cracked or leaking reservoirs, restores easier coolant level checks, and helps reduce the chance of coolant loss caused by a failed overflow tank.
Who Should Buy This
- Owners with a 2011-2021 Charger, Challenger, or Chrysler 300 that matches the listing
- Buyers who want a cap-included reservoir
- Drivers looking for a value-focused OE-style replacement
Who Should Avoid This
- Owners of later model years outside the listed 2011-2021 range
- Anyone whose current reservoir uses a different OEM number, mounting pattern, or hose layout
Eco Notes
No explicit eco certifications are listed. A properly sealed reservoir can reduce coolant leaks and waste, but the tank itself appears to be a standard automotive plastic replacement.
Key Benefits
- Vehicle-specific fit for many 2011-2021 Chrysler and Dodge models
- Direct OE-style replacement for 603-380, 55111260AB, and 55111260AF applications
- Cap included for a more complete repair
- Transparent design for easier coolant level checks
- Good value if your vehicle matches the listed range
Check Product Details on Amazon
Coolant Recovery Tank: Dodge 2015-2023
This KarParts360 coolant recovery tank is the premium replacement pick if your Dodge Charger or Challenger matches the 2015-2023 range and OEM number 68237637AB. It is a reservoir-only option, so it makes the most sense if your cap is still good or you already plan to buy a separate cap.
The main advantage is fitment focus. If you are replacing a tank tied to 68237637AB, this option gives you a clear reference point instead of forcing you to compare vague universal parts.
Why You’ll Like It
You’ll like this tank if you want an OEM-number-focused replacement for later Charger or Challenger model years and you are comfortable confirming the cap separately.
Pros and Cons
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Pros |
Cons |
|---|---|
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✅ Listed for many 2015-2023 Dodge Challenger and Charger applications |
❌ Reservoir only, cap is not included |
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✅ Matches OEM 68237637AB when fitment is correct |
❌ Not the best choice for 2011-2014 vehicles |
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✅ Good option when you want an OEM-number-focused replacement |
❌ Aftermarket replacement rather than factory OEM branding |
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✅ Practical fitment range for later Charger and Challenger models |
❌ No explicit environmental certifications listed |
Review Checkpoints
Check current Amazon reviews for comments about fit on your exact year, cap compatibility, packaging condition, and whether the reservoir aligns with the factory mounting points without trimming or forcing hoses.
What It Fixes
Replaces cracked, leaking, cloudy, or damaged recovery tanks and helps restore proper coolant containment and visible level monitoring.
Who Should Buy This
- Owners with a 2015-2023 Dodge Charger or Challenger that matches 68237637AB
- Buyers who want a reservoir-only replacement
- Drivers who prefer choosing by OEM interchange number
Who Should Avoid This
- Anyone who needs a cap included in the same purchase
- Owners whose vehicle uses a different reservoir shape, cap style, or OEM number
Eco Notes
No explicit eco certifications are listed. Replacing a leaking tank can help reduce coolant loss and prevent larger repair waste, but the part itself appears to be a standard automotive plastic component.
Key Benefits
- Direct replacement option for applications matching OEM 68237637AB
- Useful for many 2015-2023 Dodge Charger and Challenger models
- Reservoir-only option for buyers who already have a usable cap
- Helps restore coolant capacity and visible level checks
Check Product Details on Amazon
Before You Buy Checklist
- Match the year range: The three options cover different ranges, including 2011-2021, 2011-2023, and 2015-2023.
- Confirm engine compatibility: Charger RT owners should verify the listing covers the 5.7L Hemi application.
- Check the OEM number: Compare your old part with numbers such as 55111260AB, 55111260AF, or 68237637AB when listed.
- Look at hose routing: The fill neck, hose nipples, mounting tabs, and cap position should match your original tank.
- Decide whether you need the cap: NewYall and X4XZ list a cap, while the KarParts360 option is reservoir only.
- Inspect nearby parts: Check hoses, clamps, and the cap seal before installing a new reservoir.
FAQ
Will These Coolant Reservoirs Fit Every Dodge Charger RT?
No. Fitment depends on model year, engine, reservoir shape, hose routing, cap style, and OEM part number. A 2011-2021 tank may not fit a later model, and a 2015-2023 68237637AB-style recovery tank may not fit earlier cars. Always use the Amazon fitment tool, compare your current reservoir, and confirm with your VIN or owner documentation before ordering.
Should I Choose A Reservoir With A Cap Included?
If your cap is old, damaged, missing, or no longer sealing properly, a cap-included option is convenient. If your cap is still correct and in good condition, a reservoir-only option can still make sense. A poor cap seal can cause pressure problems, so do not ignore the cap when replacing the tank.
Can I Replace A Dodge Charger Coolant Reservoir Myself?
Many DIY owners can replace a coolant reservoir with basic tools, but the engine must be completely cool before you open the system. Take photos of hose routing, transfer or replace clamps carefully, refill with the correct coolant, and bleed air if your service procedure requires it. If you see repeated overheating, coolant smell, white residue, or pressure issues, have the cooling system inspected.
What Coolant Should I Use After Replacing The Tank?
Use the coolant specification recommended in your owner’s manual or service information. Do not mix incompatible coolant chemistries unless the manufacturer guidance allows it. If the system has old, contaminated, or mixed coolant, a proper drain, flush, and refill may be safer than topping off only.
When Should I Replace The Reservoir Instead Of Just Topping Up Coolant?
Replace the reservoir if it is cracked, leaking, badly stained, warped, has damaged mounting tabs, or makes coolant level impossible to read. Topping up coolant may help temporarily, but it will not fix a leaking or failed overflow tank.
Quick Decision Guide
If you want the easiest all-around choice, start with NewYall because it includes the cap and has the broadest listed 2011-2023 fitment range. If your Charger RT falls in the 2011-2021 range and you want a value-focused OE-style replacement, the X4XZ 603-380 tank is a smart comparison. If your vehicle matches 68237637AB in the 2015-2023 range and you are fine buying or reusing the cap separately, the KarParts360 tank is the better fitment-focused option.
Wrapping Up
You do not need to overcomplicate a Dodge Charger RT coolant reservoir replacement. The right choice comes down to fitment, cap inclusion, and matching the correct OEM or OE-style reference number.
The NewYall tank is the strongest all-around pick for many 2011-2023 Charger, Challenger, and Chrysler 300 applications because it includes the cap and has a broad listed fitment range. The X4XZ 603-380 tank is the value pick for many 2011-2021 vehicles, especially if your old part matches 55111260AB or 55111260AF. The KarParts360 tank is best when your 2015-2023 Charger or Challenger matches 68237637AB and you want a reservoir-only replacement.
Before you buy, confirm your vehicle’s OEM part number, whether you need the cap included, and whether the hose routing matches your current reservoir. Check compatibility first, choose the tank that matches your year and part number, and you can make a simple repair that helps keep your Charger RT cooling system in better shape.
| NewYall Engine Coolant Reservoir Tank with Cap for Chrysler 300 Dodge Challenger Charger 2011-2023 | 603-380 Coolant Overflow Reservoir Tank with Cap For 2011-2021 Chrysler 300/Dodge Challenger Charger V6 V8 | For Dodge Challenger/Charger 2015-2023 Engine Coolant Recovery Tank | |
|---|---|---|---|
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| Best For | Broad cap-included replacement for many 2011-2023 applications | Value-focused 603-380 replacement for many 2011-2021 applications | Reservoir-only replacement for 2015-2023 applications matching 68237637AB |
| Cap Included | Yes, listing indicates tank with cap | Yes, listing indicates tank with cap | No, listing indicates reservoir only |
| Fitment Focus | Chrysler 300, Dodge Challenger, Dodge Charger 2011-2023 | Chrysler 300, Dodge Challenger, Dodge Charger 2011-2021 V6/V8 | Dodge Challenger/Charger 2015-2023 |
| OEM / Interchange Notes | Direct-fit style replacement, verify by vehicle | 603-380, replaces 55111260AB / 55111260AF when compatible | Matches OEM 68237637AB when compatible |
| Item Weight | 3.54 pounds | 3.39 pounds | 3.79 pounds |
| Dimensions | 16.97 x 10.59 x 8.62 inches | 14.3 x 11.9 x 10 inches | 17 x 12 x 10 inches |
| Manufacturer | NewYall | X4XZ | KarParts360 |
| Check Price on Amazon | Check Price on Amazon | Check Price on Amazon |
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