LDCRE Outboard Thermostat 60°C / 140°F – 2PC Replacement for Yamaha & Suzuki Engines, Metal Direct-Fit

LDCRE 2PCS thermostat (60°C / 140°F) is a direct-fit replacement for many Yamaha and Suzuki outboard engines, built to restore proper engine temperature control and prevent overheating.

Whether you're servicing a single outboard or preparing a twin-engine boat for the season, having the correct thermostat is essential for stable engine operation. These two thermostats are precision-made metal units that match common OEM specifications and replace part numbers such as 67F-12411-01 and 17670-90J00. They’re supplied in a pair to cover both sides of twin installations or to keep a spare on board.

How will this thermostat help my outboard run more reliably?

By opening and closing at the designed temperature (60°C / 140°F), the thermostat stabilizes coolant flow and prevents the engine from running too hot or too cold. Stable operating temperature improves combustion consistency and reduces thermal stress on components. Using a correct-fit replacement restores the factory cooling behavior without modifying the cooling system.

• Opens at 60°C / 140°F to regulate coolant flow.
• Metal construction resists corrosion in marine environments.
• Matches OEM fit and function for direct installation.
• Sold as a 2-piece set for twin engines or a spare unit.

Which engines and OEM parts does this replace?

This thermostat is designed for a wide range of Yamaha and Suzuki outboards, including mid- to high-horsepower models used in fishing and recreational boats. It lists common OEM cross-references so you can confirm compatibility with service manuals or parts diagrams prior to purchase. Using the correct replacement part number avoids fitment issues and ensures correct coolant routing.

• Compatible with Yamaha F75–F250 and VF200–VF250 models.
• Compatible with Suzuki DF70–DF300 series (check exact model year fitment).
• Replaces part numbers like 67F-12411-01 and 17670-90J00.
• Also cross-references additional OEM numbers for verification.

How easy is installation and what should I prepare?

Installation is straightforward for anyone familiar with basic outboard maintenance: drain the cooling circuit as required, remove the old thermostat housing, swap the unit and gasket, then reassemble. No special tools or alterations are needed when matched to the correct engine models. Always follow your engine maker’s torque specs and gasket replacement guidance for a reliable seal.

• Comes as two thermostats—enough for both engines or a spare.
• Direct-fit replacement; no machining or modifications required.
• Use new gaskets and torque to OEM specifications when installing.
• Check for coolant leaks and proper thermostat operation after startup.

What materials and quality features matter for a marine thermostat?

This thermostat uses corrosion-resistant metal for longevity in salt or freshwater conditions and a calibrated wax element for reliable temperature response. Robust construction reduces the risk of sticking open or closed, common failure modes that can lead to overheating or insufficient warm-up. Choosing a high-quality replacement helps maintain your engine’s performance and extends service intervals.

• Durable metal housing resists rust and seawater corrosion.
• Precision wax element tuned to open at 60°C / 140°F.
• Manufactured to match OEM dimensions and flow characteristics.
• Supplied as a matched pair for convenience and readiness.

Who is this for: Boat owners, marine technicians, and DIY enthusiasts who run Yamaha or Suzuki outboard engines and need a reliable, OEM-compatible thermostat replacement. This 2-piece kit is particularly useful for twin-engine boats, professional mechanics stocking commonly replaced parts, and anyone wanting a dependable spare on board to minimize downtime during a day on the water.