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Brass Reducer Bushing - 1/2in NPT Male x 1/4in NPT Female Air Line Fitting - Replaces Eaton 3220X8X4 Parker 209P84 177.9110DB
Brass Reducer Bushing - 1/2in NPT Male x 1/4in NPT Female Air Line Fitting - Replaces Eaton 3220X8X4 Parker 209P84 177.9110DB
Automann

Brass Reducer Bushing - 1/2in NPT Male x 1/4in NPT Female Air Line Fitting - Replaces Eaton 3220X8X4 Parker 209P84 177.9110DB

In stock
SKU: 177.9110DB
$2.04
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Fitment

Fits these trucks

Universal - air brake systemsNPT air-brake and air-line connections on trucks, tractors and trailers1/4in line into a 1/2in port
Always confirm your year, make & model before ordering.
Part numbers

OEM & interchange numbers

5 cross-refs
Eaton 3220X8X4 Parker 209P84 110DB 016083 SPRB84
Direct 1-to-1 replacement for every number above. Tap any number to copy.
Overview

Two thread sizes apart, one fitting. This Brass Reducer Bushing distributed by FleetPro Parts & Tires takes one 1/2in male pipe end down to one 1/4in female pipe end in a single body - the two-step reduction that lets a small gauge line, sensor or air accessory land in a large tank, valve or manifold port. Stacking two bushings to cover the same step doubles the joints, doubles the leak paths, and pushes the fitting further out where vibration can find it. 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.

Two Sizes in One Step: The 1/2in to 1/4in NPT Bushing Advantage

Doing the whole step in one piece is the value of this part. The bushing seats the small fitting almost flush with the big port, so the assembly stays short and rigid instead of cantilevered on a stack of adapters that vibration will eventually loosen. One 1/2in male pipe end goes into the port and one 1/4in female pipe end takes the line - nothing else to buy and nothing else to seal.

Brass carries the tapered pipe thread on both sides, seals without galling, and stays removable after years of pressure cycling, vibration and road salt, so the small fitting comes out and the port stays good. This Automann bushing is a direct replacement for highly searched industry numbers including Eaton 3220X8X4, Parker 209P84, 110DB and SPRB84, and it supersedes Automann 177.9016.

Vehicle Fitment & Compatibility

This brass air-line fitting uses a universal design intended for the following commercial applications:

  • Make/Model: Universal - Class 8 tractors and trailers
  • System: Air brake systems; NPT air-brake and air-line connections on trucks, tractors and trailers
  • Connections: One 1/2in male pipe end, one 1/4in female pipe end
  • Component Group: Air Brake & Wheel / Air System Manifolds & Valves

Direct Replacement & Cross-Reference Numbers:

This Automann reducer bushing serves as a direct replacement for the following part numbers:

  • Eaton Interchange: 3220X8X4
  • Parker Interchange: 209P84
  • Additional Interchange: 110DB, 016083, SPRB84
  • Automann Supersedes: 177.9016
  • Automann Distributor #: 177.9110DB

Technical Specifications

  • Component Type: Pipe (NPT) reducer bushing, male to female
  • Male Thread: 1/2in NPT
  • Female Thread: 1/4in NPT
  • Material: Brass
  • Application: Universal - air brake systems
  • Warranty: 1-Year FleetPro Warranty
  • UPC: 889626446733
  • Product Level: Fleet Standard Aftermarket
  • Brand: Automann (Distributed by FleetPro Parts & Tires)
Key features
  • Two-Size Step in One Piece: Takes a 1/2in male pipe end down to a 1/4in female pipe end without stacking two bushings.
  • Short, Rigid Assembly: Seats the small fitting almost flush with the big port instead of cantilevering it on a stack of adapters.
  • Half the Leak Paths: One bushing means one added joint, where a two-bushing stack means two.
  • Brass Stays Removable: Seals on tapered pipe thread without galling and does not seize in after years of pressure cycling and road salt.
  • Wide Interchange: Covers Eaton 3220X8X4, Parker 209P84, 110DB and SPRB84 from a single part number.
Specifications
Component Type
Pipe (NPT) reducer bushing, male to female
Male Thread
1/2in NPT
Female Thread
1/4in NPT
Material
Brass
Application
Universal - air brake systems
Supersedes
177.9016
Condition
New
Warranty
1-Year FleetPro Warranty
UPC
889626446733
Product Level
Fleet Standard Aftermarket
Questions
Will this fit my truck?
This part fits Universal - air brake systems, NPT air-brake and air-line connections on trucks, tractors and trailers, 1/4in line into a 1/2in port. Always confirm your year, make and model before ordering.
What part numbers does it replace?
Yes. It is a direct replacement that interchanges with Eaton 3220X8X4, Parker 209P84, 110DB, 016083, SPRB84.
How fast does it ship?
In-stock orders placed before 12 PM Central on business days ship the same day from our Hanover Park, IL warehouse, and typically arrive in 2 to 5 business days anywhere in the USA.
What's your return policy?
Unused items in original packaging can be returned within 30 days, backed by our 30-day money-back guarantee. If we ship the wrong part, we cover the return label and send the correct one.