Brass Push-to-Connect (PLC) Male Connector - 1/2" Tube x 3/8" NPT - Replaces Eaton 1868X8 177.13B688C
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$5.28
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Fitment
Fits these trucks
Universal - tractors and trailers with air brake systemsAir brake plumbing / brake circuits1/2 in DOT air brake tubing into a 3/8 in female NPT port
Always confirm your year, make & model before ordering.
Part numbers
OEM & interchange numbers
1 cross-refEaton 1868X8
Direct 1-to-1 replacement for every number above. Tap any number to copy.
Overview
Get the supply line back together fast with this Brass Push-to-Connect (PLC) Male Connector distributed by FleetPro Parts & Tires. It joins 1/2 in DOT air brake tubing to a 3/8 in male NPT port with one firm push โ no flaring, no sleeves, no specialty tooling. A leaking or split fitting on an air brake circuit costs you twice: the compressor runs constantly and wears itself out, and the audible leak it leaves behind is a straight path to an out-of-service ticket at the next inspection. 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.
A Sealed Joint That Stays Sealed: The Brass PLC Male Connector Advantage
The brass body and collet are the reason this fitting outlives the cheap ones. Brass will not corrode solid the way plated steel does after a few Midwest winters of salt and washdowns, and the brass collet will not go brittle and let go of the tube the way an economy plastic collet can. The 1/2 in tube end takes a squarely cut tube and grips it against system pressure, and the 3/8 in male NPT pipe thread seats into any matching female NPT port in the air brake plumbing.
This is a DOT air brake fitting that meets FMVSS 571.106 requirements for brake circuits, so it belongs in a service or supply line rather than in a shop drawer. It weighs a listed 0.1 lbs and packs at 1.35 x 0.93 x 0.81 in, small enough that a spare or two lives permanently in the truck box.
At FleetPro Parts & Tires, we know the right fitting is the one that matches both dimensions. This connector is a direct replacement for the highly searched industry number Eaton 1868X8 โ order it by that number or by the Automann distributor number 177.13B688C. It ships new and is backed by our 1-Year FleetPro Warranty.
Vehicle Fitment & Compatibility
This DOT brass air fitting uses a universal design intended for the following commercial applications:
- Make/Model: Universal โ tractors and trailers with air brake systems
- System: Air brake plumbing / brake circuits
- Tube Size: 1/2 in push-to-connect tube end
- Port Thread: 3/8 in male NPT
- Standards: Meets FMVSS 571.106 / DOT requirements for brake circuits
Direct Replacement & Cross-Reference Numbers:
This Automann brass fitting serves as a direct replacement for the following part numbers:
- Eaton Interchange: 1868X8
- Automann Distributor #: 177.13B688C
Technical Specifications
- Component Type: Push-to-Connect (PLC) Male Connector, DOT Air Brake
- Tube End: 1/2 in
- Pipe Thread: 3/8 in NPT Male
- Body: Brass body and collet
- Compliance: FMVSS 571.106 / DOT
- Condition: New
- Warranty: 1-Year FleetPro Warranty
- Weight: 0.1 lbs
- Package Dims: 1.35 x 0.93 x 0.81 in
- Product Level: Fleet Standard Aftermarket
- Brand: Automann (Distributed by FleetPro Parts & Tires)
Key features
- Direct Eaton 1868X8 Replacement: Crosses to the industry number most counters look up, so you can order with confidence instead of matching by eye.
- Tool-Free Push-to-Connect: The tube pushes in and locks, turning a roadside air leak into a two-minute repair with nothing but a tube cutter.
- All-Brass Body and Collet: Brass resists the salt, moisture and washdown chemistry that seize plated-steel fittings and crack plastic collets.
- DOT Air Brake Rated: Meets FMVSS 571.106 and DOT requirements for brake circuits, so the joint stands up to inspection.
- New and Warranty Backed: Ships new from our Hanover Park, Illinois warehouse with a 1-Year FleetPro Warranty.
Specifications
Component Type
Push-to-Connect (PLC) Male Connector, DOT Air Brake
Tube End
1/2 in
Pipe Thread
3/8 in NPT Male
Body
Brass body and collet
Compliance
FMVSS 571.106 / DOT
Condition
New
Warranty
1-Year FleetPro Warranty
Weight
0.1 lbs
Package Dims
1.35 x 0.93 x 0.81 in
UPC
889626032141
Product Level
Fleet Standard Aftermarket
Questions
Will this fit my truck?
This part fits Universal - tractors and trailers with air brake systems, Air brake plumbing / brake circuits, 1/2 in DOT air brake tubing into a 3/8 in female NPT 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 1868X8.
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.