The Dayton 13-3130L is a high-quality, direct-replacement inner wheel cap nut designed for the left-hand (driver side) dual wheel configurations on heavy-duty commercial vehicles.Engineered to the exact specifications of original equipment hardware, these nuts ensure the safety and stability of inner wheels on Isuzu, Hino, Paccar, and GMC platforms.
These metric inner cap nuts are manufactured from high-strength carbon steel, providing the structural integrity required to handle the high-torque environment of commercial trucking. The Zinc Yellow Chromate finish serves as a critical barrier against corrosion, road salts, and moisture, extending the service life of your wheel hardware.
| Attribute | Value |
| Part Number | 13-3130L |
| Thread Direction | Counterclockwise (Left Hand) |
| Thread Size | M30-1.50 (Outer) / M20-1.50 (Inner) |
| Hex/Square Size | 21 mm |
| Overall Length | 63.5 mm |
| Depth | 42 mm |
| Material | Carbon Steel |
| Finish | Zinc Yellow Chromate |
| Seat Style | Flange |
| Package Qty | 10 Inner Cap Nuts |
This part is a direct replacement for the following OEM and industry part numbers:
GMC: 94039631
Hino: 900424101
Isuzu: 142336005, 1423360050
Meritor: R003130L
PACCAR: W721
VMRS: 018-003-027 (Left)
Left-Hand Specific: Specifically designed for the left side of the vehicle with counterclockwise threading to prevent loosening during operation.
Heavy-Duty Construction: Forged from carbon steel and tested to a Safety Rating of 1 for maximum reliability.
Exact Fitment: Matches OE fit and function, ensuring a seamless replacement for worn or damaged inner nuts.
Corrosion Resistance: The Zinc Yellow Chromate coating provides superior protection in harsh weather and road conditions.
Dayton parts are backed by over a century of automotive expertise.These 13-3130L nuts are designed by product experts in the United States to ensure your fleet meets the highest safety and performance standards.
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