18736A MERCURY Rectifier Regulator Mariner

Review MERCURY Genuine Hp Rectifier Regulator Oem for MARINER

The Mercury 18736A Mariner 135-200 HP Rectifier Regulator is a crucial component in the charging system of high-performance outboard motors. This regulator is specifically designed for Mercury 135-200 HP outboard motors and is available in two variants: 18736A11 and 18736A21.

The 18736A Mariner Regulator is engineered to maintain optimal battery charging, ensuring that your outboard motor always has a reliable power source. It features a robust and durable design, with a marine-grade aluminum housing that protects against corrosion and harsh marine environments. The regulator is also sealed against water and other elements, providing superior protection against the elements.

The regulator is equipped with a rectifier that converts alternating current (AC) from the motor into direct current (DC) for charging the battery. It also includes a voltage regulator that maintains the battery voltage at the optimal level for charging. This ensures that the battery is always charged efficiently, providing longer engine run times and improved performance.

The 18736A Mariner Regulator is easy to install and is designed to fit directly into the existing wiring harness on Mercury 135-200 HP outboard motors. It also includes mounting hardware for secure installation. The regulator is equipped with diagnostic lights that indicate if there is a problem with the charging system, making it easy to identify and resolve any issues.

The 18736A11 and 18736A21 variants of the regulator differ in their terminal layout. The 18736A11 has a terminal layout that is compatible with older Mercury outboard motors, while the 18736A21 has a terminal layout that is compatible with newer Mercury outboard motors. It is essential to ensure that you order the correct variant for your specific motor to ensure proper installation and functionality.

In summary, the Mercury 18736A Mariner 135-200 HP Rectifier Regulator is a critical component in the charging system of high-performance outboard motors. It is designed to maintain optimal battery charging, is durable and waterproof, and is easy to install. It is available in two variants, with different terminal layouts, to accommodate different Mercury outboard motor models.

Mercury 18736A Mariner 135-200 HP Rectifier Regulator: A Comprehensive Analysis

The Mercury 18736A Mariner 135-200 HP Rectifier Regulator is a crucial component for maintaining the charging system of Mercury outboard motors. This device converts the alternating current (AC) from the engine to the direct current (DC) required by the battery. In this analysis, we will discuss the pros and cons of this rectifier regulator to help you make an informed decision.

1. High Power Output: The Mercury 18736A Mariner Rectifier Regulator can handle a wide range of power outputs, making it suitable for various Mercury outboard motors. It can efficiently charge batteries in larger boats with heavy electrical loads.

2. Durability: Mercury Marine is known for its high-quality components, and the 18736A Rectifier Regulator is no exception. This device is built to withstand the harsh marine environment, ensuring reliable performance for an extended period.

3. Easy Installation: The installation process of this rectifier regulator is straightforward, and it can be easily integrated into existing wiring systems.

4. Versatile: This rectifier regulator is compatible with a wide range of batteries, including flooded, gel, and AGM types.

5. Overcharge Protection: The Mercury 18736A Mariner Rectifier Regulator has built-in overcharge protection, preventing damage to the battery or the charging system.

1. Price: The Mercury 18736A Mariner Rectifier Regulator is relatively expensive compared to other aftermarket alternatives. However, its high power output, durability, and reliability justify its cost for many users.

2. Size: This rectifier regulator is larger than some aftermarket alternatives, which might require additional space in the engine compartment.

3. Limited Compatibility: While the Mercury 18736A Mariner Rectifier Regulator is compatible with a wide range of Mercury outboard motors, it might not be suitable for all models. It is essential to check the compatibility chart provided by Mercury Marine before making a purchase.

The Mercury 18736A Mariner 135-200 HP Rectifier Regulator is a high-performance, durable, and reliable component that is essential for maintaining the charging system of Mercury outboard motors. Its ability to handle a wide range of power outputs and compatibility with various battery types make it a versatile choice for boat owners. Although it is relatively expensive and larger in size than some alternatives, its reliability and robustness justify its cost for many users.

If you own a Mercury outboard motor and require a high-performance, reliable, and durable rectifier regulator, the Mercury 18736A Mariner 135-200 HP Rectifier Regulator is an excellent choice. Its compatibility with various battery types and overcharge protection make it a versatile and safe investment for your boat. However, it is essential to check the compatibility chart provided by Mercury Marine and consider the size and cost before making a purchase.

Details:

This is a good used genuine Mercury Mariner 135-200 hp water cooled rectifier regulator 18736A11 18736A21 oem.

specifications watercraftimp:

• for models: Mariner
• brand: Mercury
• mpn: 18736a
• part type: Hp Rectifier Regulator

seller watercraftimp:

• city: lenoir city, tennessee
• # reviews: 4585
• rating: 99.8%

payments watercraftimp:

• wallet: apple-pay
• other
• credit card: visa

offer watercraftimp:

• availability: in stock
• in stock #: 5
• started: february 4, 2026
• options: ship-to-home
• sold #: 8
• prices: $600.00–$799.97
• item condition:
  • Used
  • New

shipping watercraftimp:

• service: usps ground advantage
• carrier: usps
• transit: 3-9 days
• class: standard
• type: calculated

general watercraftimp:

• category: Watercraft Parts > Engines > Impellers Components

returns watercraftimp:

• policy: no returns