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Deal.ai › KarParts360 › Replacement Auto Parts
KarParts360
KarParts360 For 2015-2020 Mercedes-Benz SL550 Engine Coolant Expansion Tank

KarParts360 For 2015-2020 Mercedes-Benz SL550 Engine Coolant Expansion Tank

Best price now

$119.42at WalmartChecked Nov 12

Compared across 2 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Last seen at $119.42 at Walmart on Nov 12.
  • Checked at 2 stores.

Our take on the KarParts360 For 2015-2020 Mercedes-Benz SL550 Engine Coolant Expansion Tank

This is an aftermarket engine coolant expansion tank for the 2015-2020 Mercedes-Benz SL550 (R231). It is a direct-fit replacement for the factory tank, made to match original specifications so the cooling system holds pressure and the coolant level reads correctly again. It suits owners with a cracked, leaking or yellowed original tank who want a lower-cost alternative to the dealer part. The main trade-off is that it is not a genuine Mercedes part, so fit and plastic quality depend on matching the OEM or Partslink number exactly before ordering.

Best forSL550 owners with a leaking or cracked factory tankDIYers replacing a brittle, discolored reservoirBudget-minded repairs on a 2015-2020 SL550
Pros
  • Direct replacement for the factory expansion tank
  • Made to match original component specifications
  • Vehicle-specific for the 2015-2020 SL550
  • Durable plastic built for normal driving conditions
  • Simple bolt-in job for a competent DIYer
Cons
  • Aftermarket part, not genuine Mercedes-Benz
  • Fit depends on matching the OEM or Partslink number
  • No cap or sensor details given, so check what's included
  • Long-term plastic durability unproven against the OEM tank

KarParts360 For 2015-2020 Mercedes-Benz SL550 Engine Coolant Expansion Tank prices at every store

  • WalmartNew

    In stockSold by KarParts360Returns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $119.42Free shippingChecked Nov 12
    Visit Walmart
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $119.42Free shippingChecked Nov 12
    Visit Amazon

Store links may earn us a commission.

KarParts360 For 2015-2020 Mercedes-Benz SL550 Engine Coolant Expansion Tank price history

Lowest price we've seen: $119.42 on Nov 12 at Amazon. Tracked across 1 store since Nov 12.

About the KarParts360 For 2015-2020 Mercedes-Benz SL550 Engine Coolant Expansion Tank

This is an engine coolant expansion tank for 2015-2020 Mercedes-Benz SL550 vehicles. It is an aftermarket replacement part designed to match the original component's specifications.

It is made for a vehicle-specific fit and is built from durable materials. It helps restore proper operation of the vehicle's cooling system. Check that the OEM number or Partslink number matches exactly before installing to confirm fitment.

Part
Engine coolant expansion tank
Brand
KarParts360
Compatibility
2015-2020 Mercedes-Benz SL550
Type
Aftermarket replacement part, direct replacement for the original component
Fitment check
Confirm the OEM # or Partslink # matches exactly

Specifications

color
OtherSource
size
Please see dimensionsSource

Questions and answers

Will this fit my 2015-2020 SL550?
It is listed for the 2015-2020 Mercedes-Benz SL550. Confirm your OEM or Partslink number matches exactly before ordering, since trims and model years can differ.
Does it come with a pressure cap?
The listing does not state that a cap is included. Reuse your existing cap if it is in good condition, or plan to buy one separately.
Is this a genuine Mercedes-Benz part?
No. It is an aftermarket replacement from KarParts360, built to match OEM specifications rather than sold by Mercedes-Benz.
Why replace the expansion tank?
The original plastic tank becomes brittle and can crack or leak with age, causing coolant loss and overheating. A new tank restores a sealed, pressurized cooling system.
Can I install it myself?
Yes, it is a straightforward job on most cars: drain some coolant, unclip hoses and the mounting, swap the tank, then refill and bleed the system. Bleeding the cooling system properly matters on the SL550.
Where is the KarParts360 For 2015-2020 Mercedes-Benz SL550 Engine Coolant Expansion Tank cheapest?
At Walmart, for $119.42, as of our latest check.
Where can I buy the KarParts360 For 2015-2020 Mercedes-Benz SL550 Engine Coolant Expansion Tank?
2 stores we checked sell it, including Walmart, Amazon.

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