Brass Push-Lock Male Connector - 3/8" Tube x 3/8" NPT DOT Air Brake Fitting - Eaton 1868X6X6 Tectran PL13686C 177.13B686C
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Fitment
Fits these trucks
Universal - Class 8 tractors, commercial trailers and heavy-duty equipmentAir brake plumbing on tractors and trailers3/8 in nylon air brake tubing to a 3/8 in NPT male portDOT brake circuits - meets FMVSS 571.106
Always confirm your year, make & model before ordering.
Part numbers
OEM & interchange numbers
4 cross-refsEaton 1868X6X6 Sloan S68PMT-6-6 Tectran PL13686C Velvac 017945
Direct 1-to-1 replacement for every number above. Tap any number to copy.
Overview
This is the straight-through fitting for a big air line: 3/8 in tube end to 3/8 in male NPT, no step-down and no restriction. The Brass Push-Lock Connect (PLC) Male Connector from Automann lands 3/8 in nylon air brake tubing on a 3/8 in NPT port at wet tanks, supply valves and reservoir ports - the high-volume side of the system, where a restriction or a weep shows up as slow pressure build and a compressor that never gets a rest. 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.
No Restriction, No Leak: The 3/8 in x 3/8 in PLC Advantage
Matching the tube size to the port size is the point of this connector. Running 3/8 in tube into a 3/8 in NPT port keeps the full cross-section of the line available, which matters on supply and reservoir circuits where recovery time after a hard brake application is what the driver actually feels. The brass body and collet construction holds that seal through vibration and temperature swing, and brass will not corrode into the port the way plated steel does when salt water finds the threads.
Assembly stays simple. The push-to-connect end accepts square-cut nylon air brake tubing by hand and locks it in the collet, so nothing has to be flared, crushed or torqued on the tube side. The fitting is DOT approved for heavy-duty air brake systems and meets FMVSS 571.106 requirements for brake circuits. It weighs 0.07 lbs, ships in a 1.35 x 0.87 x 0.87 in package, is built to Fleet Standard specifications and carries a 1-Year FleetPro Warranty.
This connector is a direct replacement for highly searched industry numbers including Eaton 1868X6X6, Sloan S68PMT-6-6, Tectran PL13686C and Velvac 017945. Replace any tubing that is chafed or heat-hardened while the circuit is drained.
Vehicle Fitment & Compatibility
This DOT brass air fitting uses a universal design intended for the following commercial applications:
- Make/Model: Universal - Class 8 tractors, commercial trailers and heavy-duty equipment
- System: Air brake plumbing on tractors and trailers
- Tube Size: 3/8 in nylon air brake tubing
- Port Thread: 3/8 in NPT male
- Compliance: Meets FMVSS 571.106 / DOT requirements for brake circuits
- Component Group: Air Brake & Wheel / Air System Manifolds & Valves
Direct Replacement & Cross-Reference Numbers:
This Automann brass fitting serves as a direct replacement for the following part numbers:
- Eaton Interchange: 1868X6X6
- Sloan Interchange: S68PMT-6-6
- Tectran Interchange: PL13686C
- Velvac Interchange: 017945
- Automann Distributor #: 177.13B686C
Technical Specifications
- Component Type: Push-Lock Connect (PLC) Male Connector, DOT air brake
- Tube End: 3/8 in
- Pipe Thread: 3/8 in NPT male
- Body: Brass body and collet
- Tube Compatibility: Nylon air brake tubing
- Compliance: DOT approved, FMVSS 571.106
- Condition: New
- Warranty: 1-Year FleetPro Warranty
- Weight: 0.07 lbs
- Package Dims: 1.35 x 0.87 x 0.87 in
- UPC: 889626032264
- Product Level: Fleet Standard Aftermarket
- Brand: Automann (Distributed by FleetPro Parts & Tires)
Key features
- Size-for-Size, No Restriction: A 3/8 in tube end into a 3/8 in NPT port keeps the full cross-section of a supply or reservoir line available.
- Hand-Tight Push-Lock End: Square-cut nylon air brake tubing locks into the brass collet with nothing to flare, crush or torque on the tube side.
- Brass Body and Collet: Holds its seal through vibration and temperature swing and will not corrode into the port the way plated steel does.
- DOT Approved for Air Brakes: Meets FMVSS 571.106 requirements for brake circuits on heavy-duty air brake systems.
- Covers Four Parts Books: Direct replacement for Eaton 1868X6X6, Sloan S68PMT-6-6, Tectran PL13686C and Velvac 017945.
Specifications
Component Type
Push-Lock Connect (PLC) Male Connector, DOT air brake
Tube End
3/8 in
Pipe Thread
3/8 in NPT male
Body
Brass body and collet
Tube Compatibility
Nylon air brake tubing
Compliance
DOT approved, FMVSS 571.106
Condition
New
Warranty
1-Year FleetPro Warranty
Weight
0.07 lbs
Package Dims
1.35 x 0.87 x 0.87 in
UPC
889626032264
Product Level
Fleet Standard Aftermarket
Questions
Will this fit my truck?
This part fits Universal - Class 8 tractors, commercial trailers and heavy-duty equipment, Air brake plumbing on tractors and trailers, 3/8 in nylon air brake tubing to a 3/8 in NPT male port, DOT brake circuits - meets FMVSS 571.106. 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 1868X6X6, Sloan S68PMT-6-6, Tectran PL13686C, Velvac 017945.
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.