Semi-Trailer Parts
Semi-Trailer King Pin
King-pin selection is a dimensional and application check. Send the installed part or drawing rather than relying on a general trailer description.
Quote basis: product reference, fitment, quantity, packing and delivery term.
- Coupling size and effective working length
- Mounting or weld-on geometry
- Buyer drawing and destination requirement
B2B
Product sourcing details
- Application
- For semi-trailer coupling replacement or a new trailer specification where the mounting plate and mating fifth-wheel requirement are defined by the buyer.
- Fitment check
- Provide the drawing or OE reference, coupling diameter, effective length, flange or weld-on form, mounting dimensions and the standard required for the destination project.
- Inspection focus
- Compare key diameters, working length, flange dimensions, hole or weld geometry and visible marking with the approved drawing. Record the protected surface condition.
- Packing and labeling
- Protect the coupling surface and separate heavy pieces inside the outer pack. Use project, size and lot labels agreed with the buyer.
FAQ
Semi-Trailer King Pin buying questions
For semi-trailer coupling replacement or a new trailer specification where the mounting plate and mating fifth-wheel requirement are defined by the buyer.
Is the trailer model enough to choose a king pin?
No. Confirm the coupling size, mounting form and dimensions from the installed part or trailer drawing.
Can you review a buyer drawing?
A dimensioned drawing is the preferred reference for a new project or when no reliable OE number is available.
Can a required standard be added to the inquiry?
Yes. State the exact project or destination requirement in writing so it can be reviewed before any order confirmation.
Request a quote
Send your parts list
Include the OE number, truck model, quantity and destination. We will check fitment before quoting.
Semi-Trailer Parts
