fits make: Mercury. year: 1984–1986.

( Brand: Marinepartsdistributors ), ( Manufacturer Part Number: 140-0257-4AZ ), ( Part Type: Torque Gear Starter ), ( Warranty: 1 Year ), ( Country Of Origin: Cn )
The 140-0257-4AZ High Torque Gear Reduction Starter is a premium replacement part designed specifically for Mercury outboard engines with models ranging from 170 to 190, and engine capacities of 3.7L. This starter is intended for Mercury engines manufactured between 1984 and 1986.
This high torque starter boasts improved performance over standard starters, thanks to its robust construction and advanced gear reduction system. The gear reduction mechanism significantly reduces the load on the engine cranking, allowing for easier starting in a variety of conditions. This feature is particularly beneficial in cold weather or when the battery is weak, making it an ideal upgrade for boat owners who want to ensure reliable engine starting.
The starter features a durable, high-quality solenoid that ensures reliable operation and long-term reliability. The solenoid is designed to withstand the rigors of marine use, making it an excellent choice for boat owners who want a starter that can stand up to the elements.
The 140-0257-4AZ High Torque Gear Reduction Starter is also easy to install, thanks to its plug-and-play design. The starter comes with all necessary mounting hardware, making installation a straightforward process even for DIY enthusiasts.
In summary, the 140-0257-4AZ High Torque Gear Reduction Starter is a premium replacement part that offers improved performance, reliable operation, and easy installation. It is an excellent choice for Mercury outboard engine owners who want to ensure reliable engine starting in a variety of conditions.
Pros of buying a (140-0257-4AZ) high torque gear reduction starter for Mercury 170-190 3.7L outboard motors (1984-1986):1. Increased reliability: This starter features a high-torque motor, which can more easily turn the engine over, reducing the chances of the starter motor failing due to strain.
2. Enhanced performance: The gear reduction starter can provide quicker engine cranking, resulting in faster boat starts and smoother engine operation.
3. Longer service life: The starter's robust construction and high-quality components can lead to a longer service life, reducing the need for frequent replacements.
Cons of buying a (140-0257-4AZ) high torque gear reduction starter for Mercury 170-190 3.7L outboard motors (1984-1986):1. Higher cost: Compared to standard starter motors, gear reduction starters tend to be more expensive due to the additional components and manufacturing processes involved.
2. Potential compatibility issues: Ensure that the starter is compatible with your specific Mercury 170-190 3.7L outboard motor model and year. Incorrect compatibility may lead to poor performance or damage to the engine.
3. Limited availability: Gear reduction starters are not as widely available as standard starters, so it may be more challenging to find replacement parts or have the starter serviced in the event of a problem.
Recommendation:If you frequently use your Mercury 170-190 3.7L outboard motor and want to ensure reliable, quick engine starts, the (140-0257-4AZ) high torque gear reduction starter is a worthwhile investment. However, ensure that the starter is compatible with your specific motor model and year, and consider the higher cost and potential limited availability as factors in your decision.
Product Notice.: Starter, Replaces: Source. High Torque Gear Reduction Starter For Mercury 170 190 3.7L 1984 1985 1986: Replaces Part Numbers Specifications.