Adjustable Pintle Mounting Plate Pine Hill adjustable pintle mount. Used on Pine Hill Shed Hauler Trailers with 25K flat mount coupler. Powder-coated Steel mount. Fits 3" ID channel. 6" x 6" 4 bolt mounting plate. Use with 25K Coupler 3601142. For more information about this... MSRP: Was: Now: $229.00 Add to Cart Compare