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KarParts360 For 2013-2020 Mercedes-Benz SL550 Coolant Expansion Tank

KarParts360 For 2013-2020 Mercedes-Benz SL550 Coolant Expansion Tank

Last price we saw

$157.79at Amazon, last seen Nov 1

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Our take on the KarParts360 For 2013-2020 Mercedes-Benz SL550 Coolant Expansion Tank

This is an aftermarket coolant expansion tank for the 2013-2020 Mercedes-Benz SL550 (R231). It is a direct-fit replacement for the factory tank that holds coolant as it expands and contracts, and it is sold by KarParts360 as a lower-cost alternative to the Mercedes part. No price was given for this listing, so check the current figure against the typical $60-$120 range for aftermarket SL550 tanks and the $150+ Mercedes dealer part.

Best forSL550 owners with a cracked or leaking factory tankOut-of-warranty R231 cars where a dealer part is overkillDIYers replacing a tank alongside a coolant flushBudget repairs on a car being sold or traded
Pros
  • Direct replacement for the 2013-2020 SL550 tank
  • Made to match original mounting points and hose connections
  • Cheaper than the Mercedes-branded part
  • Simple job for a DIYer with basic hand tools
Cons
  • Aftermarket plastic may not last as long as the OEM tank
  • Fitment depends on matching the OEM or Partslink number exactly
  • No price or dimensions listed here to compare
  • No warranty terms stated in the listing

KarParts360 For 2013-2020 Mercedes-Benz SL550 Coolant Expansion Tank prices at every store

  • AmazonCheck price at Amazon
  • WalmartCheck price at Walmart

KarParts360 For 2013-2020 Mercedes-Benz SL550 Coolant Expansion Tank price history

Lowest price we've seen: $157.79 on Nov 1 at Amazon. Tracked across 1 store since Nov 1.

What reviewers say

Owner feedback on KarParts360 coolant tanks is mixed. Most buyers report the tank fits and seals correctly, but some note thinner plastic than the factory part.

Pros
  • Fits the listed model without modification
  • Costs far less than the dealer part
  • Arrives quickly and is easy to install
Cons
  • Plastic feels thinner than OEM
  • Occasional reports of caps or seams leaking early
  • Fitment issues when the wrong part number is ordered

About the KarParts360 For 2013-2020 Mercedes-Benz SL550 Coolant Expansion Tank

Product Info: - Part: Engine Coolant Expansion Tank Product Features: - Manufactured from durable materials for long-lasting use - Designed for reliable performance under normal driving conditions - Precision-engineered for proper fit and function - Direct replacement designed to match original component specifications - Helps restore proper operation of the vehicle system - Vehicle-specific design for compatibility with listed models - Built for consistent performance and reliability Aftermarket Replacement Parts: Each component undergoes comprehensive evaluation to meet our safety standards and high-quality criteria, ensuring it meets OEM specifications. Made from high-quality materials, this product has been tested to ensure long-lasting performance. Please confirm that the OEM # or Partslink # matches exactly before purchasing to ensure proper fitment.

Specifications

color
OtherSource
size
Please see dimensionsSource

Questions and answers

Is this tank worth it over the Mercedes part?
For an older SL550 out of warranty, yes. It costs a fraction of the dealer tank and does the same job. If you plan to keep the car long-term, the OEM tank is the safer bet for longevity.
How do I know it fits my SL550?
Match the OEM or Partslink number on your existing tank to the one listed before ordering. The tank is listed for 2013-2020 SL550 models, but Mercedes changed part numbers across those years.
What is in the box?
The expansion tank only. The pressure cap and coolant are usually not included, so check whether you need to reuse your old cap or buy a new one.
When is the coolant tank usually replaced?
When you see coolant weeping at the seams, a low coolant light, or a sweet smell after driving. SL550 tanks are plastic and commonly fail after 6-10 years.
Can I install it myself?
Yes. It is a drain, unclamp, swap and refill job with basic tools. You will need to bleed the cooling system afterward to avoid air pockets.
When is the price lowest?
Aftermarket parts like this tend to dip during general auto parts sales and off-peak winter months. Compare the current price against the $60-$120 typical range before buying.
Where can I buy the KarParts360 For 2013-2020 Mercedes-Benz SL550 Coolant Expansion Tank?
2 stores we checked sell it, including Amazon, Walmart.

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