Designers & Builders of Tank Trucks since 1948
  • API Couplers
  • OPW 1004D4
The 1004D3 and 1004D4 are the standards in "drip-less" bottom loading couplers and a proven performer at major oil terminals worldwide. They mate with all 4" bottom loading adapters built in accordance with API RP-1004 requirements to significantly reduce liquid loss at disconnect.

The 1004D3 is a manually locking unit and the 1004D4 is an automatically spring locking unit.
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Item #

Item Name

Seal Material

Vendor Item #

Price

N/A Fluorocarbon Seal Replacement Kit for 1004D3 N/A Fluorocarbon N/A 1004D3SRK-0402 $161.08
N/A Low Temp Fluorocarbon Seal Replacement Kit for 1004D3 N/A Low Temp Fluorocarbon N/A 1004D3SRK-0402LT $310.16
N/A Buna-N Seal Replacement Kit for 1004D3 N/A Buna-N N/A 1004D3SRK-0401 $85.68
N/A Fluorocarbon Seal Replacement Kit for 1004D4 N/A Fluorocarbon N/A 1004D4SRK-0402LT $167.94
N/A Low Temp Fluorocarbon Seal Replacement Kit for 1004D4 N/A Low Temp Fluorocarbon N/A 1004D4SRK-0402 $310.16
N/A Buna-N Seal Replacement Kit for 1004D4 N/A Buna-N N/A 1004D4SRK-0401 $111.38
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