Moroso 03-12 Mazda RX-8 Coolant Expansion Tank - Direct Bolt-In Replacement

Moroso 03-12 Mazda RX-8 Coolant Expansion Tank - Direct Bolt-In Replacement

Marsoni

M251S

$134.00

Get it in 3 business days with 1 day shipping. Friday, May 29

Moroso 03-12 Mazda RX-8 Coolant Expansion Tank - Direct Bolt-In ReplacementSKU: 63814 UPC: 84663638145 Moroso 03 12 Mazda RX 8 Coolant Expansion Tank Direct Bolt In Replacement The Moroso 63814 Coolant Expansion Tank serves as a direct bolt in replacement for the factory plastic unit on 2003 2012 Mazda RX 8 models. Cast aluminum construction handles rotary engine heat cycles without cracking or leaking. This upgrade ensures consistent coolant levels to support track or street performance. Key Features Cast Aluminum Body:

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I used this to change the oil on my BMW M8 with the S63 engine. It was a perfect fit. It extended far enough onto the filter housing to be quite secure with no risk of slipping off and stripping the housing. It was snug on the housing and did not bind up due to having a loose fit. The tool feels well-built and I suspect it will outlive me given my occasional personal use. It would still probably hold up well even for daily shop use as long as it was not abused (repeatedly dropped, slammed around, etc).

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Reviewed in the United States on September 8, 2025

Verified Purchase

Chad altenbach

Louisville, US

★★★★★ 5

Made well and great fit

Fits perfectly and is made well

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 8, 2026