Reducing Union Connector 5/8 x 3/8 - 177.842R106

Part#: AAA717842R106

Features and Benefits

  • Reducing union fitting style for in-line 5/8 in to 3/8 in tubing size transition
  • Mixed-size port configuration with 5/8 in on one end and 3/8 in on the opposing end
  • Connection size 1 at 5/8 in for accurate larger-bore tubing match at one fitting end
  • Connection size 2 at 3/8 in for accurate smaller-bore tubing match at the opposing end
  • Reducing union for direct 5/8 in to 3/8 in in-line tubing size transition without adapters
  • Dual-size port fitting for simplified mixed-size air brake tubing union in one fitting

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Warranty

Warranty Up to 3 years warranty

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Connection Size 10.63 in.
Connection Size 20.38 in.
Interchange
42F106
42R106
S42106

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The Union Connector is a reducing union fitting with a brass body and 5/8" x 3/8" connection size, engineered for dependable cross-diameter tube joining in Heavy Duty commercial vehicle air brake systems. The component delivers consistent sealing performance and reliable service life across a wide range of pneumatic plumbing configurations.
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