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Mishimoto 15 Subaru STI Thermostatic Oil Cooler Kit - Black
Mishimoto 15 Subaru STI Thermostatic Oil Cooler Kit - Black
Mishimoto 15 Subaru STI Thermostatic Oil Cooler Kit - Black
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Mishimoto 15 Subaru STI Thermostatic Oil Cooler Kit - Black

Marsoni M251S
Sale price$312.48
Pay 4 payments of $78.12 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Mishimoto 15 Subaru STI Thermostatic Oil Cooler Kit - BlackSKU: MMOC STI 15TBK UPC: 748354015812 Mishimoto 2015 2021 Subaru WRX STI Thermostatic Oil Cooler Kit Black The Mishimoto Thermostatic Oil Cooler Kit delivers precise oil temperature control for 2015 2021 Subaru WRX STI models. This direct fit system mounts a 19 row cooler in the front bumper for maximum airflow and reduces oil temperatures by over 20F while preserving pressure. Ideal for street or track use, it includes preassembled lines and brackets
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 1004 reviews
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Product Reviews
S
Verified Purchase
Samuel B Wentzel
Bozeman, US
★★★★★ 5
OEM quality
Size: 5 Quart, Style: 1 Pack
This stuff is supposed to be as good or better than OEM Subaru CVT fluid. It works well so far. And it's definitely a lot cheaper than taking it to a dealership and having a flush and fill done
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 20, 2026
S
Verified Purchase
Stephen L. Smith
Chelsea, US
★★★★★ 5
Worth The Cost Using For Subaru's.
Size: 5 Quart, Style: 1 Pack
Worked great in my Subaru Outback and my daughter's Subaru Forester. Both transmissions shifting very smoothly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
J
Verified Purchase
JACK
Waukegan, US
★★★★★ 5
Exactly what advertised
Size: 5 Quart, Style: 1 Pack
Good product and is the same as Genuine Subaru CVT fluid. This company makes it for Subaru
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
S
Verified Purchase
Steve
Phoenix, US
★★★★★ 5
Fit for 2021 Subaru Forester CVT
Size: 5 Quart, Style: 1 Pack
Works just fine in the 2021 Forester. Better value than subaru branded CVT Oil. Compatible with any subaru CVT.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
D
Verified Purchase
Dwight Byrd
Louisville, US
★★★★★ 5
A much more affordable option for Subaru owners
Size: 5 Quart, Style: 1 Pack
When you're paying between $16 & $18+ per quart of Subaru brand CVTF 2 fluid this is a much more affordable option. If you look on the back of a Subaru branded CVTF 2 quart bottle you'll see the Idemitsu logo. Doing this job myself saved me over $1000 on what the dealership quoted me to change the valve body and drain and fill my CVT without skimping on anything.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026

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