1. Sterndrive Electrical For Sale.
  2. sku: 3430992264100871
  3. MERCRUISER 16738

MERCRUISER 16738 Alternator Bracket 63857 120 140 3.0 4-CYLINDER

63857 Mercruiser 16738 Alternator Bracket 120 140 3.0 4-cylinder

( Brand: Mercruiser ), ( Manufacturer Part Number: 16738 ), ( Part Type: Bracket Alternator ), ( Country Of Origin: United States )

Review MERCRUISER Alternator Bracket 120 140 3.0 4-cylinder

The Mercruiser 16738 63857 alternator bracket is a crucial component for the electrical system of Mercruiser 4-cylinder engines, specifically those with a displacement of 120 to 140 cubic inches and a 3.0-inch alternator. This bracket is meticulously designed to provide a robust and secure mounting solution for the alternator, ensuring reliable and efficient power generation for your watercraft's electrical needs.

Made from high-strength materials, this alternator bracket is engineered to withstand the rigors of marine environments. Its durable construction guarantees long-lasting performance, even in the face of harsh conditions such as extreme temperatures, humidity, and saltwater exposure.

The Mercruiser 16738 63857 alternator bracket is designed with a precise fit for compatibility with Mercruiser 4-cylinder engines featuring a 3.0-inch alternator. Its secure mounting design ensures a stable and vibration-free installation, which in turn contributes to a quieter operating experience.

This bracket is essential for maintaining the electrical performance of your Mercruiser engine, as it directly affects the charging system's ability to keep your watercraft's batteries fully charged. By providing a dependable mounting solution for your alternator, the Mercruiser 16738 63857 alternator bracket ensures optimal electrical system performance and longevity.

In summary, the Mercruiser 16738 63857 alternator bracket is an essential component for the electrical system of Mercruiser 4-cylinder engines, with a displacement of 120 to 140 cubic inches and a 3.0-inch alternator. Its high-strength construction, precise fit, and secure mounting design make it a reliable and efficient solution for maintaining the electrical performance of your watercraft's engine.

MerCruiser 16738 63857 Alternator Bracket: A Comprehensive Analysis

Introduction:

The MerCruiser 16738 63857 alternator bracket is a crucial component for marine engine applications. It is designed for use with MerCruiser 4-cylinder engines with a 120 to 140 amp alternator. In this analysis, we will discuss the key features, advantages, and disadvantages of this alternator bracket to help you make an informed purchasing decision.

Features:

1. Material: The alternator bracket is manufactured from high-strength cast aluminum, ensuring durability and resistance to corrosion.

2. Design: It features a simple bolt-on design for easy installation, and it can accommodate various alternator sizes within the specified range.

3. Compatibility: This bracket is specifically designed for MerCruiser 4-cylinder engines, providing reliable mounting for the alternator.

Advantages:

1. Robust Construction: The high-strength cast aluminum material ensures a robust and durable bracket, capable of withstanding the rigors of marine environments.

2. Easy Installation: The bolt-on design simplifies the installation process, allowing for quick and hassle-free setup.

3. Versatility: The ability to accommodate various alternator sizes within the specified range offers flexibility for engine upgrades or replacement.

Disadvantages:

1. Limited Compatibility: This alternator bracket is designed exclusively for MerCruiser 4-cylinder engines, limiting its applicability to a specific engine type.

2. Potential for Vibration: Since the alternator is a rotating component, there is a possibility of vibration, which may require additional mounting measures to ensure optimal performance and longevity.

Conclusion:

The MerCruiser 16738 63857 alternator bracket is a well-designed and robust component, offering a simple installation process and the ability to accommodate various alternator sizes. Its primary disadvantage lies in its limited compatibility with only MerCruiser 4-cylinder engines. However, its high-strength cast aluminum construction and ease of installation make it a valuable investment for those in need of a reliable alternator mounting solution for their MerCruiser engine.

Recommendation:

If you are in possession of a MerCruiser 4-cylinder engine and require a new alternator bracket, the MerCruiser 16738 63857 alternator bracket is an excellent choice due to its robust construction, easy installation, and versatility. Its compatibility with your engine type ensures a perfect fit, while its ability to accommodate various alternator sizes offers future upgrade possibilities.

Details:

Picture shown with both for comparison. Good used Mercruiser 16738 steel alternator bracket commonly on 120 140 2.5 3.0 4 cylinder stern drive engines.Same dimensions as cast iron 63857 version.

part #: 16738 prices

  • $15.00-$25.00

specifications steelectr:

  • brand: Mercruiser
  • mpn: 16738
  • part type: Bracket Alternator
  • country of origin: United States

seller steelectr:

  • # reviews: 1407
  • rating: 100.0%
  • city: Webster, New York

shipping steelectr:

  • cost: $10.00
  • class: Standard
  • carrier: USPS
  • service: USPS Ground Advantage
  • type: Fixed
  • transit: 4-9 Days

general steelectr:

  • Boat Parts > Sterndrive Motors Components > Electrical Systems
  • condition: Used

payments steelectr:

  • wallet: Apple-pay
  • other
  • credit card: Visa

returns steelectr:

  • paid by: Buyer
  • policy: Returns Accepted
  • time: 14 Days

offer steelectr:

  • options: Ship-to-home
  • started: March 28, 2026
  • quantity: 1
  • availability: In Stock
  • sold: 0
part type: bracket alternator, country of origin: united states,
category: boat parts > sterndrive components > electrical systems, sku: 3430992264100871,
Mercruiser 16738 Is Similar To:
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5 offers $15.00–$25.00 USD
  • Used. Offer #1 priced at $15.00 + $8.75 shipping estimate = $23.75* total. made by Mercury Specifically designed for 120 140 3.0L 2.5L , , and comes with shim and bolts MerCruiser alternator brackets, adjuster plate, bracket and bolts comes with everything in the pictures.+$8.75 shipping
  • New other (see details). Offer #2 priced at $25.00 + $9.69 shipping estimate = $34.69* total. A 1, Bracket Assy, Alternator Mounting Mercruiser 140 GM 181 I/L4 1979-1982.+$9.69 shipping
  • Used. Offer #3 priced at $19.95 + $10.00 shipping estimate = $29.95* total. Picture shown with both for comparison.+$10.00 shipping
  • Used. Offer #4 priced at $16.95 + $7.00 shipping estimate = $23.95* total. Good condition see pictures.+$7.00 shipping
  • Used. Offer #5 priced at $19.00 + $0.00 shipping estimate = $19.00* total. Shipped with USPS Ground Advantage. , Mercruiser Alternator Bracket Pre-owned.FREE SHIPPING

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