4x4 PartsCompare
← Parts database
RAM Diamond Ball Base - B Size - 1 Inch

RAM Diamond Ball Base - B Size - 1 Inch

Part number
RAM-B-238U
Brand
RAM
Price range
$8.49 – $9.49
Last checked
Nov 5, 2026

Spec sheet

Collected from 2 supplier pages - confirm fit with the supplier before ordering.

The RAM Diamond Ball Base consists of either a 1" B-Size rubber ball or C-Size 1.5" connected to a 2.43" x 1.31" diamond plate. This mounting component includes pre-drilled holes using the universal AMPS hole pattern. The diamond plate features two holes that measure 1.912" from center to center, matching the industry-standard AMPS hole pattern. This diamond ball base is compatible with a wide variety of RAM ® device holders and cradles. Features: Diamond plate features industry-standard AMPS hole pattern and measures 2.43" x 1.31" Compatible with several RAM ® device holders and cradles; ball and socket technology allows for near-infinite adjustability For B-Size ball mounts, connect to B-Size socket arms For C-Size ball mounts, connect to C-Size socket arms Made of powder-coated, marine-grade aluminum for durability and reliability in the most demanding environments Backed by a lifetime warranty Specifications: Hole Pattern: 2-Hole AMPS - 1.912" Plate Size: 2.43" x 1.31" Ball Size: B Size (1") or C Size (1.5") B-Size Standard Use: Weight Capacity - 2 lbs B-Size Heavy-Duty Use: Weight Capacity - 1 lb C-Size Standard Use: Weight Capacity - 4 lbs C-Size Heavy-Duty Use: Weight Capacity - 3 lb

Suppliers (2)

  • Expedition Essentials
    RAM Diamond Plate 2.43" x 1.31" with B Size 1" Ball · Orderable · stock unverified
    Checked Nov 5, 2026
    $8.49
    View at supplier
  • Rugged Radios
    RAM Diamond Ball Base - B Size - 1 Inch · Orderable · stock unverified
    Checked Nov 5, 2026
    $9.49
    View at supplier

Specifications and fitment

Ball Size
B Size - 1 Inch

Price history

DateSupplierPriceStock
Nov 5, 2026Rugged Radios$9.49Orderable - stock unverified
Nov 5, 2026Expedition Essentials$8.49Orderable - stock unverified