MERCURY 18-3605 Outboard Thermostat Marine Dfi Motor Kit 722831056284 135 150 175 2.5L

( Manufacturer Part Number: 18-3605 ), ( Part Type: Hp Thermostat Motor ), ( UPC: 722831056284 ), ( Manufacturer Name: Soxa Marine Parts Manufacturer Co., Ltd. ), ( Part Name Type: Outboard Motor Thermostat Kit ), ( Replacement Oem Number 1: Mercury Mariner Quicksilver Marine Thermostat Kit Sierra 18-3605 ), ( Compatible With 1: Mercury Marine V 135 150 175 Hp Dfi 2.5l Outboard Engines ), ( Compatible With 2: Mercury Mariner Outboard Motor V-135 Dfi ), ( Compatible With 3: Mercury Mariner Outboard Motor V-150dfi ), ( Compatible With 4: Mercury Mariner Outboard Motor V-175 Dfi ), ( Package Include Parts: 2pcs Thermostat, 4pcs Seal, 2pcs Gasket ), ( Package Weight: 99 G ), ( Item Package Dimensions: 12.5 8.5 5 Cm ), ( Aftermarket Replacement: 18-3605 Sierra Marine ), ( Thermostat Brand: Soxamarine ), ( Operating Temperature: Thermostat 140 F Degrees )

Review MERCURY Aftermarket Outboard Thermostat Kit Marine 135 150 175 Hp Dfi 2.5l Motor fits MARINER

Mercury Mariner Outboard Thermostat Kit 18-3605 - Engine Cooling Solution for 135, 150, 175 HP DFI 2.5L Motors

The Mercury Mariner Outboard Thermostat Kit 18-3605 is a carefully engineered component designed to ensure optimal engine performance and longevity for your marine 135, 150, or 175 HP Direct Fuel Injection (DFI) 2.5L motor. This thermostat kit, specifically tailored for Mercury Mariner outboard engines, is an essential addition to your maintenance arsenal, providing reliable heat management for your high-performance watercraft.

The kit includes a high-quality thermostat that effectively regulates coolant temperature, preventing the engine from overheating during heavy use and ensuring it reaches the ideal operating temperature during colder conditions. The thermostat's precision design ensures consistent performance, minimizing the risk of engine damage and maximizing the efficiency of your outboard motor.

The Mercury Mariner Outboard Thermostat Kit 18-3605 is easy to install, requiring no extensive mechanical knowledge. The kit includes clear, step-by-step installation instructions, ensuring a hassle-free experience for boat owners. With this thermostat kit, you will be back on the water in no time, enjoying the peace of mind that comes from knowing your engine is operating at its best.

Investing in the Mercury Mariner Outboard Thermostat Kit 18-3605 is an investment in your marine engine's longevity and performance. By maintaining the ideal coolant temperature, this thermostat kit helps your outboard motor deliver consistent power, improved fuel efficiency, and reduced emissions. Whether you're cruising the open sea, fishing in shallow waters, or simply enjoying a leisurely afternoon on the water, the Mercury Mariner Outboard Thermostat Kit 18-3605 is an essential addition to your marine engine maintenance routine.

Upgrade your Mercury Mariner outboard engine today with the Mercury Mariner Outboard Thermostat Kit 18-3605, and experience the difference a well-maintained engine can make on your watercraft's performance and reliability.

Pros and Cons of buying a Mercury Mariner Outboard Thermostat Kit (18-3605) for Marine 135, 150, 175 HP DFI 2.5L Motor

1. Original Equipment Manufacturer (OEM) Part: This kit is an original Mercury part, meaning it's designed to fit perfectly with your engine and is compatible with the DFI 2.5L motor.

2. Quality and Reliability: Mercury is a well-known brand in the marine industry, so you can expect high-quality components and reliable performance from this thermostat kit.

3. Part of Regular Maintenance: Replacing the thermostat is part of regular engine maintenance, and using an OEM part can help ensure your engine's longevity and efficiency.

4. Warranty: If purchased from an authorized dealer, this part may come with a warranty, providing peace of mind and protection against defects.

1. Cost: OEM parts are often more expensive than aftermarket alternatives. However, the increased cost may be worth it for the assurance of quality and fitment.

2. Availability: Depending on your location, finding this specific part may be challenging. You may need to order it online or from a specialized dealership.

3. Limited Upgrade Potential: Since this kit is specifically designed for the DFI 2.5L motor, it may not offer the same upgrade potential as aftermarket parts designed for a wider range of engines.

In conclusion, the Mercury Mariner Outboard Thermostat Kit (18-3605) is a high-quality, OEM part designed specifically for the 135, 150, 175 HP DFI 2.5L motor. While it may be more expensive than aftermarket alternatives, its fitment, quality, and potential for enhancing your engine's longevity make it a worthwhile investment. If you prioritize reliability and are looking for a genuine Mercury part, this thermostat kit is a good choice. If cost is a significant concern, exploring aftermarket alternatives may be beneficial. Always ensure to purchase from a trusted source to maintain the quality and performance of your engine.

Details:

How to Identify the Correct Thermostat for Your Boat Motor or Outboard Engine 2 X. 2 Engine Serial Number: Use the serial number of your outboard or boat engine to look up correct water pump spare parts on official catalog through a dealer. From advanced polymer formulas to rigorous quality control, every SOXA Marine Parts is engineered resist corrosion, reduce wear, and outlast, trust keep your engine running smoothly, mile after nautical.: Outboard Thermostat Gasket Kit, Reference Brand Outboards OEM P/N and Aftermarket Brand: Mercury Mariner Quicksilver Marine Kit Sierra 18-3605 Motor model's Specifications: V 135 150 175 HP DFI 2.5L Engines 140 F degree thermostat Service V-135 2.5L 1998 Up, V-150DFI V-175 2.5L 2000 Up with Seal Package Include: 2 X 4 Same as the picture shown How to Identify Correct for Your Boat or Engine: To find exact water pump model kit your boat engine.

1 Check the Owners Manual: The manual will specify correct part number for your engine. SOXA Marine dedicates itself to crafting hog-performance boat engine cooling water pump rubber impellers that power your journeys, also understand a reliable impeller isn't just spare part, its the lifeline of system. SOXA Marine: Precision Boat Engine Water Pump Parts for Uninterrupted Journeys.

part #: 183605 price

• $22.50

specifications ouboaen:

• for models: Mariner
• for makes: Mercury
• mpn: 18-3605
• part type: Hp Thermostat Motor
• upc: 722831056284
• manufacturer name: Soxa Marine Parts Manufacturer Co., Ltd.
• part name type: Outboard Motor Thermostat Kit
• replacement oem number 1: Mercury Mariner Quicksilver Marine Thermostat Kit Sierra 18-3605
• compatible with 1: Mercury Marine V 135 150 175 Hp Dfi 2.5l Outboard Engines
• compatible with 2: Mercury Mariner Outboard Motor V-135 Dfi
• compatible with 3: Mercury Mariner Outboard Motor V-150dfi
• compatible with 4: Mercury Mariner Outboard Motor V-175 Dfi
• package include parts: 2pcs Thermostat, 4pcs Seal, 2pcs Gasket
• package weight: 99 G
• item package dimensions: 12.5 8.5 5 Cm
• aftermarket replacement: 18-3605 Sierra Marine
• thermostat brand: Soxamarine
• operating temperature: Thermostat 140 F Degrees

seller ouboaen:

• city: Hebron, Kentucky
• rating: 100.0%
• # reviews: 192

general ouboaen:

• Boat Parts > Outboard Engines Components > Cooling Systems
• condition: New

offer ouboaen:

• options: Ship-to-home
• availability: In Stock
• best offers: True
• sold: 0
• quantity: 1
• started: November 21, 2025

payments ouboaen:

• credit card: Discover
• wallet: Google-pay
• other

shipping ouboaen:

• service: Standard, UPS Ground, Expedited
• class: Standard, Expedited
• carrier: UPS
• type: Fixed
• transit: 3-7 Days
• cost: $0.00

returns ouboaen:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

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