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EATON 21218 Mainshaft Gear

21218 Eaton Mainshaft Gear

( Brand: Eaton ), ( Manufacturer Part Number: 21218 ), ( Part Type: Gear )

Review EATON Mainshaft Gear

The Eaton 21218 Mainshaft Gear is an essential component of automatic transmissions, specifically those manufactured by Eaton. This gear is meticulously engineered to deliver optimal performance and durability.

The Mainshaft Gear, also referred to as the Input Shaft Gear, is responsible for transmitting power from the engine to the various components within the automatic transmission. It is designed with precision-machined teeth that ensure smooth and efficient power transfer. The gear's tooth profile is optimized to minimize power loss and provide quiet operation.

The Eaton 21218 Mainshaft Gear is manufactured using high-strength steel, ensuring it can withstand the heavy loads and high torque levels encountered in modern automotive applications. It is then heat-treated to enhance its strength and durability, allowing it to resist wear and maintain its shape even under the most demanding conditions.

The gear is designed to fit seamlessly into the automatic transmission, with a precise diameter and length to ensure proper engagement with other transmission components. The gear's spline design provides a robust connection to the transmission input shaft, ensuring a secure and reliable fit.

The Eaton 21218 Mainshaft Gear is engineered to meet or exceed OEM specifications, ensuring that it delivers the same level of performance and reliability as the original equipment part. It is backed by a comprehensive warranty, providing peace of mind to customers who demand the highest level of quality and performance.

In conclusion, the Eaton 21218 Mainshaft Gear is a critical component of automatic transmissions, engineered to deliver optimal performance and durability. It is manufactured using high-strength steel, precision-machined teeth, and a robust spline design, ensuring a secure and reliable fit. The gear is designed to meet or exceed OEM specifications and is backed by a comprehensive warranty, making it an excellent choice for customers seeking reliable and high-performing automatic transmission components.

Buying an Eaton 21218 mainshaft gear involves considering its potential advantages and disadvantages for your specific application. Here are some points to help you make an informed decision:

Advantages:

1. Durability: Eaton is a reputable brand known for manufacturing high-quality components. The 21218 mainshaft gear is designed to withstand heavy loads and provide reliable performance in industrial applications.

2. Compatibility: This gear is specifically designed for Eaton Fuller transmission systems, ensuring a perfect fit and function.

3. Availability: Eaton is a globally recognized brand, and their parts are widely available from various suppliers and distributors, making it easy to obtain this gear when needed.

Disadvantages:

1. Cost: Eaton parts, including the 21218 mainshaft gear, are often more expensive than aftermarket alternatives. This could be a significant consideration for those working on a tight budget.

2. OEM Dependency: Opting for an OEM part like the Eaton 21218 means you may be locked into using Eaton components for future repairs or upgrades, potentially limiting your options and increasing costs over time.

Conclusion:

When deciding to buy an Eaton 21218 mainshaft gear, consider the importance of compatibility, durability, and availability in your specific application. Weigh these advantages against the potential cost and OEM dependency. If the benefits of using an OEM part outweigh the costs, then the Eaton 21218 may be the best choice for you. However, if budget is a primary concern, you may want to explore aftermarket alternatives while ensuring they offer the necessary compatibility and reliability for your application.

Recommendation:

To make an informed decision, gather detailed information about the specific requirements of your application, including the transmission system, load capacity, and operating conditions. Research both the Eaton 21218 and aftermarket alternatives, comparing their compatibility, durability, availability, and cost. Consult with experts or industry professionals if necessary to ensure you select the component best suited to your needs and budget.

Details:

Eaton 21218 Mainshaft Gear.

part #: 21218 price

  • $120.00

specifications manutransmission:

  • brand: Eaton
  • mpn: 21218
  • part type: Gear

general manutransmission:

  • Car Truck Parts Accessories > Transmission Drivetrain > Manual Transmission Parts
  • condition: New

shipping manutransmission:

  • carrier: USPS
  • type: Calculated
  • transit: 3-9 Days
  • cost: $9.67
  • service: USPS Ground Advantage
  • class: Standard

returns manutransmission:

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

seller manutransmission:

  • # reviews: 1531
  • rating: 100.0%
  • city: Southaven, Mississippi

offer manutransmission:

  • quantity: 1
  • sold: 0
  • availability: In Stock
  • options: Ship-to-home
  • started: September 22, 2025

payments manutransmission:

  • other
  • credit card: Discover
  • wallet: Paypal
part type: gear,
category: auto parts > car truck parts accessories > transmission drivetrain > manual transmission parts, sku: 8227798960917791,

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1 offer $120.00 USD
  • Offer #1: $120.00 price + $10.60 shipping estimate = $130.60* total. Eaton Mainshaft Gear.+$10.60 shipping

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