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  3. EATON KG18874

EATON KG18874 Manual Transmission Lock Nut K4122 4302321

4302321 Eaton Kg18874 K4122 Manual Transmission Lock Nut

( Brand: Eaton ), ( Manufacturer Part Number: KG18874 ), ( Part Type: Manual Transmission Lock ), ( Cross Reference 2: Fulk4122 Fur-4306520 Fur4306520 K-4122 ), ( Cross Reference 1: 4306520b Ef23170 Ful 4306520 Ful K4122 Ful4306520 ), ( Cross Reference: 23170 3088-4306520 35540614 4302321 4306520 ), ( Cross Reference 3: K4122b M134306520 M13k4122 M482 S-18874 S18874 )

Review EATON Manual Transmission Lock Nut

The Eaton KG18874 K4122 Manual Transmission Lock Nut is an essential component for securing the manual transmission shaft in various heavy-duty applications. This nut is engineered to provide superior holding power and durability to ensure the transmission operates smoothly and efficiently.

The nut is manufactured from high-strength steel, ensuring it can withstand the torque and stresses encountered during heavy-duty operations. Its hexagonal shape provides a secure and reliable means for applying and removing torque using standard socket tools.

The KG18874 K4122 Manual Transmission Lock Nut features a unique locking mechanism that prevents the nut from loosening during operation. This mechanism, combined with the high-strength steel material, ensures that the transmission remains securely connected to the shaft, reducing the risk of costly downtime and repairs.

The nut's thread pitch is 1.25 inches by 20 threads per inch (UNF-20), making it a common size used in various heavy-duty applications. Its dimensions are 1.7 inches in length and 1.5 inches in width, providing ample contact surface area for securing the transmission to the shaft.

The Eaton KG18874 K4122 Manual Transmission Lock Nut is designed to meet or exceed OEM specifications, ensuring optimal performance and compatibility with various heavy-duty transmission systems. It is an excellent replacement option for worn-out or damaged original nuts, providing reliable and long-lasting service.

In conclusion, the Eaton KG18874 K4122 Manual Transmission Lock Nut is a high-quality, durable component designed for securing manual transmissions in heavy-duty applications. Its hexagonal shape, locking mechanism, and high-strength steel material ensure superior holding power and reliability, reducing the risk of costly downtime and repairs.

Buying an Eaton KG18874 K4122 manual transmission lock nut involves weighing the potential benefits against the drawbacks to determine if it is a worthwhile investment. Here are some pros and cons to consider:

Pros:

1. Enhanced Security: Installing a manual transmission lock nut can help prevent unauthorized access to your vehicle's manual transmission. This added security feature can provide peace of mind, particularly for individuals who frequently park their cars in public areas.

2. Durability: Eaton is a reputable manufacturer known for producing high-quality parts. The KG18874 K4122 lock nut is engineered to withstand regular use and wear and tear.

3. Easy Installation: Most users report that installing the lock nut is a straightforward process. It typically requires minimal tools and can be completed in a relatively short amount of time.

Cons:

1. Cost: The price point of the Eaton KG18874 K4122 lock nut may be a deterrent for some individuals. While the part is designed to last, the initial investment can be significant.

2. Not Universal: The Eaton KG18874 K4122 lock nut is only compatible with certain transmission models. Before making a purchase, ensure that it is the correct part for your vehicle to avoid wasting time and money.

3. Added Complexity: While the installation process is generally simple, adding a lock nut to your manual transmission system may introduce additional complexity. This could potentially lead to complications or issues in the future.

Conclusion:

The decision to purchase an Eaton KG18874 K4122 manual transmission lock nut ultimately depends on your specific needs and priorities. If security and peace of mind are top concerns, and you have the budget for it, then this part may be a worthwhile investment. However, if cost or added complexity are significant factors, it may be worth considering alternative security measures or foregoing the lock nut altogether.

Recommendation:

If you decide that a manual transmission lock nut is the right choice for you, be sure to double-check compatibility with your vehicle's transmission model before making a purchase. Additionally, consider consulting with a mechanic or transmission specialist to ensure proper installation and function.

Details:

Genuine Eaton K4122: Nut: Item Specifications: Product condition: New - is brand new in original box. These items are fully functional and have not been used or installed. Shipping charge DOES NOT include accessory charges like INSIDE DELIVERY, LIFTGATE, or LIMITED ACCESS deliveries schools, churches, construction sites, etc. FedEx is our primary carrier.

Shipping Info: Items under 110 pounds are shipped regular ground service by the lowest cost method.

part #: kg18874 prices

  • $21.00-$25.00

specifications othellodrivetrain:

  • brand: Eaton
  • mpn: Kg18874
  • part type: Manual Transmission Lock
  • cross reference 2: Fulk4122 Fur-4306520 Fur4306520 K-4122
  • cross reference 1: 4306520b Ef23170 Ful 4306520 Ful K4122 Ful4306520
  • cross reference: 23170 3088-4306520 35540614 4302321 4306520
  • cross reference 3: K4122b M134306520 M13k4122 M482 S-18874 S18874

offer othellodrivetrain:

  • availability: In Stock
  • sold: 0
  • quantity: 1
  • started: November 15, 2025
  • options: Ship-to-home

seller othellodrivetrain:

  • rating: 98.9%
  • # reviews: 11195
  • city: Bainbridge, Georgia

returns othellodrivetrain:

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

general othellodrivetrain:

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

payments othellodrivetrain:

  • other
  • wallet: Google-pay
  • credit card: Mastercard

shipping othellodrivetrain:

  • transit: 4-10 Days
  • cost: $0.00
  • class: Economy, Expedited, One-day
  • service: Economy, USPS Priority Mail, FedEx Priority Overnight
  • type: Fixed
  • carrier: USPS, FedEx
part type: manual transmission lock, cross reference 2: fulk4122 fur-4306520 fur4306520 k-4122, cross reference 1: 4306520b ef23170 ful 4306520 ful k4122 ful4306520, cross reference: 23170 3088-4306520 35540614 4302321 4306520, cross reference 3: k4122b m134306520 m13k4122 m482 s-18874 s18874,
category: auto parts > car truck parts accessories > transmission drivetrain, sku: 10633519727794721,

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othellodrivetrain logo
5 offers $21.00–$25.00 USD
  • Offer #1: $21.00 price + $7.90 shipping estimate = $28.90* total.+$7.90 shipping
  • Offer #2: $25.00 price + $8.75 shipping estimate = $33.75* total. PART NUMBER: K-4122. NEW GENUINE EATON TRANSMSSION OUTPUT SHAFT/YOKE NUT.+$8.75 shipping
  • Offer #3: $23.80 price + $0.00 shipping estimate = $23.80* total. With its manufacturer part number K-4122, this locknut is a crucial component for maintaining the performance and longevity of commercial trucks. The Eaton OEM Locknut P/N: K-4122 is a high-quality commercial truck part manufactured by Eaton in the United States.FREE SHIPPING
  • Offer #4: $15.00 price + $15.00 shipping estimate = $30.00* total.+$15.00 shipping
  • Offer #5: $30.00 price + $0.00 shipping estimate = $30.00* total. NEW GENUINE EATON FULLER TRANSMISSION FLANGE NUT/ PART NUMBER: K-4122.FREE SHIPPING

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