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Inner Cap Nut LH 1-1/8"-16 Outer Thread, 3-3/32" Length - Replaces E5978L - 10 Pack

Inner Cap Nut LH 1-1/8"-16 Outer Thread, 3-3/32" Length - Replaces E5978L - 10 Pack

SKU: F286656L

Availability: In Stock

Stock Level: More than 50 available.

Shipping: Calculated at Checkout

Regular price $65.00 USD
Regular price Sale price $65.00 USD
Sale Sold out
Shipping calculated at checkout.

About this Item

  • For Dual Mounted Aluminum Wheels
  • Inner Thread Size: 3/4"-16
  • Meets automotive industry standards and specifications
  • Zinc plated to resist corrosion and rust.
  • Designed to withstand high stresses and loads found in heavy-duty wheeled applications.


Fortpro Inner Cap Nut Left Hand - F286656L is a high quality inner cup nut designed specifically for dual mount aluminum wheels. Featuring an original equipment standard, this nut offers full internal threads for applications that require maximum thread engagement. Its left-hand design and durable construction ensure a secure hold in demanding automotive and mechanical environments.


  • Brand: Fortpro
  • Part Type: Inner Cap Nut / Left Hand Wheel End Inner Cap Nut
  • Vehicle Type: Semi-Trucks, Heavy-Duty Trucks
  • Part OEM: E5978L, E-5978-L, E5978R, E-5978-R
  • Type: Inner Cap Nut
  • Outer Thread: 1-1/8"-16
  • Outer Overall Length: 3-3/32"
  • Inner Thread: 3/4"-16
  • Inner Thread Min. Depth: 1-15/16"
  • Application: For Dual Mounted Aluminum Wheels. OE Standard with full inner threads for applications requiring maximum thread engagement.
  • VMRS: 018-003-014
  • Item Package Quantity: 10


  • Automann: 2011006L, 2011006R 
  • Dayton Parts Batco: 133034L, 133034R
  • Euclid: E5978L, E-5978-L, E5978R, E-5978-R
  • Meritor: R005978L, R005978R
  • Trailmobile: 385978L, 385978R
  • World Truck: 1332003L, 1332003R

Shipping Policy

In order to send your purchase, our company may use different freight companies like USPS, UPS and some 3erd Carrier Services for Oversize orders, this will not affect the final price of your order. We will send you all the information in due time. 

For Free Shipping and Freight/Oversize Shipments they are some special term you may check at our Terms & Conditions page.


Return Policy

If for any reason you need to return a purchased item, we have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

To be eligible for a return, your item must met the conditions stablished in our Terms & Conditions.

To start a return, you can contact us at


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