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Fortpro

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-10QTY

Availability: More than 50 in Stock

$66.66 USD
$78.00 USD $66.66 USD
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Compatibility & Purchase Guidelines

  • Verify OEM Compatibility: Always match your OEM part number with our cross-reference list before purchasing to ensure proper fitment.
  • Avoid Returns: Do not rely solely on visual similarity. Parts may look identical but differ in specifications. Confirm compatibility using part numbers.
  • Truck Brand Reference Disclaimer: Mentioned truck brands are provided for general reference only and do not guarantee universal compatibility across all models.

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 admin@maxitrucks.com. 

Key Features & Benefits

  • 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.
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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.


Fortpro is a trusted leader in the development and manufacturing of premium-quality truck parts designed to meet the demands of semi-trucks and heavy-duty trucks. Renowned for innovation, durability, and reliability, Fortpro products are engineered to enhance performance, safety, and efficiency across a wide range of trucking applications.

Whether you're seeking OEM replacement parts or upgrades, Fortpro provides a diverse selection of components backed by a global reputation for quality and innovation. Trust Fortpro for the parts you need to keep your vehicles on the road longer and stronger.

Basic Part Information
Product Line Driveline & Axles Category Name Wheel Fasteners
Part Type Inner Cap Nut Alternate Part Name Left Hand Wheel End Inner Cap Nut, Inner Cap Wheel Lug Nut, Inner Cap Wheel Lug Nut
OEM Part Number E-5978-L, E-5978-R
Application/Fitment Attributes
Application Type Heavy Duty Trucks, Semi-Trucks, Semi-Trucks, Heavy Duty Trucks
Dimensional/Physical Attributes
Material Hardened steel with zinc dichromate coating. Hex Size 13/16 in.
Inner Thread 3/4 in. -16 Inner Thread Min. Depth 1-15/16 in.
Outer Overall Length 3-3/32 in. Outer Thread 1-1/8 in. -16
Thread Direction LH (Left Hand), RH (Right Hand)
Packaging / Logistics Attributes:
Net Weight 0.53 lb.
Additional Information
Intended Application
  • Dual Mounted Aluminum Wheels. OE Standard with full inner threads applications requiring maximum thread engagement.
  • 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
Dimensions Not Available.