Brass Hex Nipple - Two 1/2in Male NPT Ends - Eaton 3325X8 Parker 216P8 177.9122D

Tie two large air connections together with this brass hex nipple distributed by FleetPro Parts & Tires. It carries two 1/2in male NPT pipe ends - the size that lands on reservoirs, supply manifolds and the bigger valve bodies, where volume matters and a restriction upstream costs the whole system recovery time. Building that connection out of stacked adapters gives up bore, adds sealing surfaces and hangs weight off a port that already sees vibration all day. Supplied under the Automann brand at Fleet Standard grade, we stock these heavily right here in our Hanover Park, Illinois warehouse to ensure lightning-fast shipping for fleets, diesel repair shops, and owner-operators nationwide.

Full-Size Flow: The 1/2in Hex Nipple Advantage

This is standard NPT pipe connection hardware for truck and trailer air-brake and air-accessory plumbing. Both ends are 1/2in male NPT and tapered, so each joint tightens progressively as it is driven and seals on the thread flanks. One fitting, two dry connections, and a straight-through path at the port size the system was designed around.

The brass body stands up to condensate, compressor oil carryover and road salt inside a heavy-duty air system, and it will not corrode itself into the reservoir boss or valve body at either end - which is exactly the failure that turns a ten-minute job into an afternoon with heat and an extractor. The generous hex centre gives a wrench real purchase, so a fitting this size gets torqued properly rather than being turned by the component it feeds. It carries forward the older Automann 177.9044 reference as well.

At FleetPro Parts & Tires, we know that on the supply side, restriction is the enemy. This Automann nipple is a direct replacement for highly searched industry numbers including Eaton 3325X8 and Parker 216P8.

Vehicle Fitment & Compatibility

This universal-application brass fitting is intended for the following commercial use:

• Make/Model: Universal - trucks, tractors and trailers
• System: NPT air-brake and air-line connections
• Threads: Two 1/2in male NPT pipe ends
• Component Group: Air Brake & Wheel / Air System Manifolds & Valves

Direct Replacement & Cross-Reference Numbers:

This Automann brass nipple serves as a direct replacement for the following part numbers:

• Eaton Interchange: 3325X8
• Parker Interchange: 216P8
• Additional Interchange: 122D, 018012, SPHN8
• Supersedes Automann: 177.9044
• Automann Distributor #: 177.9122D

Technical Specifications

• Component Type: Brass Hex Nipple
• Threads: Two 1/2in Male NPT Pipe Ends
• Body Material: Brass
• Application: Universal - air-brake and air-accessory plumbing
• Replaces Automann #: 177.9044
• UPC: 889626447273
• Product Level: Fleet Standard Aftermarket
• Brand: Automann (Distributed by FleetPro Parts & Tires)