807252Q5 Thermostat Kit 160° for Mercruiser V6&V8 GM Engines 4.3L 5.0L 5.7L 7.4L



1. Compatibility: Thermostat 807252Q5 fit for 1987-2016 MerCruiser V6 & V8 GM inboard/stern drive engines, 3.0L(Late), 4.3L, 5.0L, 5.7L, 7.4L, 8.2L. Compatible with 1987 and later GM engines equipped with a 160° thermostat and standard cooling system


2. Direct Replacement: Directly replaces OEM parts like 18-3647 and 807252Q5, facilitating a straightforward installation process that saves time and effort for boat maintenance.


3. Durable Construction: Constructed with high-quality materials, this thermostat kit offers robust performance, ensuring long-lasting reliability.


4. Package Contains: 1 Thermostat 160°, 3 Cover Gasket, 1 Plastic Sleeve, 1 Housing Gasket.


5. Complete AccessoriesThis kit contains all the parts you need to replace your Mercruiser thermostat. The kit contains 4 x Different Gaskets that fit most Mercruiser engine thermostat combinations, 1 x Thermostat 160°(Replaces Merc Part #: 808252) 8M0109441, 1 x Thermostat Housing Sleeve (23-806922) that usually breaks into several pieces when removing the old thermostat. Excellent value for money.


7. Efficient Temp. Control: This thermostat kit seamlessly regulates engine temperature, the 160° thermostat helps maintain optimal engine temperature, preventing engine overheating, maintaining peak performance and efficiency




Payment methods accepted: Payoneer.  Our Payoneer account allows you to pay by credit card, debit card and your paypal balance.


1.Orders will be ship out within 1-3 business days after payment has cleared. Orders from Saturdays, Sundays or holidays will process on next business day and will be ship within 24 hours.  

2.All of the items are shipped from our Warehouse in USA.



1. Any defective items received can be replaced or refunded. Please contact us with the item number, eBay ID and defect description within 60 days after the date of package arrived. No Claim will be accept after 60 days.

2. Return shipping fee is the responsibility of buyer unless the return is a result of our mistake. And all NON-seller mistake returns for refund are subject to 20% re-stocking fee.


If you have any questions, please feel free to email our service specialists 24 Hours a Day, and we will reply you ASAP. If no response within 24 Hours, please check the spam of mail box or kindly re-send it to us.

Please note that our product is an aftermarket product (non-OEM). The parts we offer in this listing are an O.E. alternative; they are not produced by O.E. Manufacturers. All names, numbers, symbols and descriptions are used for reference purposes only. If you mind, please do not place an order.


Please contact us before leaving Neutral or Negative feedback if you are not satisfied our service or products. Good communication is helpful for both of us to resolve any problems and issues. We work hard to make sure EVERY CUSTOMER 100% SATISFIED and resolve any problem for you and always leave positive feedback to all our customers.

1. Compatibility: Thermostat 807252Q5 fit for 1987-2016 MerCruiser V6 & V8 GM inboard/stern drive engines, 3.0L(Late), 4.3L, 5.0L, 5.7L, 7.4L, 8.2L. Compatible with 1987 and later GM engines equipped with a 160° thermostat and standard cooling system


2. Direct Replacement: Directly replaces OEM parts like 18-3647 and 807252Q5, facilitating a straightforward installation process that saves time and effort for boat maintenance.


3. Durable Construction: Constructed with high-quality materials, this thermostat kit offers robust performance, ensuring long-lasting reliability.


4. Package Contains: 1 Thermostat 160°, 3 Cover Gasket, 1 Plastic Sleeve, 1 Housing Gasket.


5. Complete AccessoriesThis kit contains all the parts you need to replace your Mercruiser thermostat. The kit contains 4 x Different Gaskets that fit most Mercruiser engine thermostat combinations, 1 x Thermostat 160°(Replaces Merc Part #: 808252) 8M0109441, 1 x Thermostat Housing Sleeve (23-806922) that usually breaks into several pieces when removing the old thermostat. Excellent value for money.


7. Efficient Temp. Control: This thermostat kit seamlessly regulates engine temperature, the 160° thermostat helps maintain optimal engine temperature, preventing engine overheating, maintaining peak performance and efficiency