Thermostat Kit (140°F) for MerCruiser V6 & V8 non-high performance GM engines with standard cooling

Thermostat Kit (140°F) for MerCruiser V6 & V8 non-high performance GM engines with standard cooling

Marsoni

M251S

$40.95

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

Thermostat Kit (140°F) for MerCruiser V6 & V8 non-high performance GM engines with standard coolingFor over 40 years, Engineered Marine Products has been successfully serving both the OEM and marine after market by providing superior quality, reliable, and competitive marine products at affordable prices. We're pleased to be appointed as UK Distributor for this brand. This six piece EMP Thermostat Kit is for 1983 onwards MerCruiser V6 & V8 non high performance GM based engines with standard cooling systems (140F). Replaces: Mercury Pt. No. 807252Q4

Easy Shipping

Quick Dispatch:

Your Thermostat Kit (140°F) for MerCruiser V6 & V8 non-high performance GM engines with standard cooling orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your Thermostat Kit (140°F) for MerCruiser V6 & V8 non-high performance GM engines with standard cooling ships.

Need Help?
Questions about Thermostat Kit (140°F) for MerCruiser V6 & V8 non-high performance GM engines with standard cooling, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Thermostat Kit (140°F) for MerCruiser V6 & V8 non-high performance GM engines with standard cooling in your area.

Get Shipping Estimates

Country Zip/Postal Code

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

These Euro size pillow inserts are fantastic! They’re soft, full, fluffy, and hold their shape very well. The firmness is perfect — supportive without feeling too hard. They filled my pillow covers beautifully and made the bed look much more luxurious. Great quality for the price and very comfortable for lounging or sleeping. Very happy with this purchase!

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 13, 2026

Verified Purchase

Amazon Customer

Cuba, US

★★★★★ 5

amazing.

Item Package Quantity: 4, Size: Queen

WOW. I was really skeptical, but the other reviews are spot on: these are amazing firm pillows. I really hope they don't lose their firmness and become lumpy like other pillows tend to do. Excellent pillows for the price!!

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on June 7, 2026

Verified Purchase

Moranda

Belleville, US

★★★★★ 5

Great quality!! Great price

Item Package Quantity: 2, Size: Queen

Bought these for my mom and omg i like them better than the ones I got on Amazon theyre super comfy and they bounce back up they dont flatten and im definitely buying some next for me definitely worth the place great price and the make seems real good quality

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on June 3, 2026

Verified Purchase

Mack Mackenzie

Port Orchard, US

★★★★★ 4

These are very thick pillows.

Item Package Quantity: 2, Size: Queen

Exactly as advertised. They are very firm and very thick. They're too thick for me to be able to use as bed pillows. However, they seem to work pretty well as cushions in my papasan chair on top of its normal cushion also work very well as decorative pillows. I'm still giving them four stars because they're exactly as advertised and they seem well made. My only complaint is that they're just too thick. And that's definitely not the fault of the pillows or the pillow maker.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 12, 2026

Verified Purchase

Sheila Sullivan

Birmingham, US

★★★★★ 5

Great pillows

Size: King - 20"*34" (pack of 2), Color: Grey

Very luxurious and comfortable! Exactly as described and priced well.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 18, 2026