Brass Push-Lock Male Connector - 3/8" Tube x M12 x 1.5 Metric Air Brake Fitting - Parker 68PTC-6-MA12 68PTC6MA12 177.13B686M12
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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 DOT nylon tubing to an M12 x 1.5 metric portDOT brake circuits - meets FMVSS 571.106
Always confirm your year, make & model before ordering.
Part numbers
OEM & interchange numbers
2 cross-refsParker 68PTC-6-MA12 Parker 68PTC6MA12
Direct 1-to-1 replacement for every number above. Tap any number to copy.
Overview
A metric port with a big line on it is a combination most parts counters get wrong. This Brass Push-Lock Connect (PLC) Male Connector from Automann is cut for an M12 x 1.5 metric thread and takes 3/8 in DOT nylon tubing on the push-lock end, so a full-size supply or delivery line lands correctly on a metric air port. It supersedes Automann 177.V8397850. 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.
Metric Port, Full-Size Line: The 3/8 in x M12 PLC Advantage
Thread form is not negotiable on an air port. An inch-series fitting will thread partway into an M12 x 1.5 hole and feel tight while it is quietly cutting the port - and the leak that follows never seals with more sealant. This connector uses the correct metric thread, and its brass body and collet resists the corrosion that welds a plated-steel fitting into an aluminum housing, so the joint can be opened again for service.
The push-to-connect end accepts square-cut 3/8 in DOT nylon air brake tubing: push the tube home, tug to confirm the collet has locked and charge the system. It is a DOT-approved brass fitting for air brake tubing and meets FMVSS 571.106 requirements for brake circuits. The fitting weighs 0.08 lbs and ships in a 1.4 x 0.7 x 0.75 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 Parker 68PTC-6-MA12 and Parker 68PTC6MA12, and it replaces Automann 177.V8397850. Confirm the port thread before ordering - metric ports on air components are not interchangeable, and this fitting is cut for M12 x 1.5.
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 DOT nylon tubing
- Port Thread: M12 x 1.5 metric
- 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:
- Parker Interchange: 68PTC-6-MA12, 68PTC6MA12
- Automann Supersession: 177.V8397850
- Automann Distributor #: 177.13B686M12
Technical Specifications
- Component Type: Push-to-connect (PLC) Male Connector, DOT air brake
- Tube End: 3/8 in DOT nylon tubing
- Thread: M12 x 1.5 metric
- Body: Brass body and collet
- Replaces: 177.V8397850
- Compliance: DOT approved, FMVSS 571.106
- Condition: New
- Warranty: 1-Year FleetPro Warranty
- Weight: 0.08 lbs
- Package Dims: 1.4 x 0.7 x 0.75 in
- UPC: 889626691140
- Product Level: Fleet Standard Aftermarket
- Brand: Automann (Distributed by FleetPro Parts & Tires)
Key features
- Correct M12 x 1.5 Thread Form: The right metric thread seals on the port instead of slowly cutting it the way a forced inch-series fitting does.
- Full 3/8 in Line on a Metric Port: Lets a full-size supply or delivery line land on an M12 metric air port without an adapter stack.
- Push-Lock Assembly: Square-cut DOT nylon tubing pushes into the brass collet and locks - no ferrule, no sleeve, no special tool.
- Serviceable Brass Body: Brass resists the corrosion that welds plated-steel fittings into aluminum housings, so the joint opens again for service.
- Parker Interchange Covered: Direct replacement for Parker 68PTC-6-MA12 and 68PTC6MA12, superseding Automann 177.V8397850.
Specifications
Component Type
Push-to-connect (PLC) Male Connector, DOT air brake
Tube End
3/8 in DOT nylon tubing
Thread
M12 x 1.5 metric
Body
Brass body and collet
Replaces
177.V8397850
Compliance
DOT approved, FMVSS 571.106
Condition
New
Warranty
1-Year FleetPro Warranty
Weight
0.08 lbs
Package Dims
1.4 x 0.7 x 0.75 in
UPC
889626691140
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 DOT nylon tubing to an M12 x 1.5 metric 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 Parker 68PTC-6-MA12, Parker 68PTC6MA12.
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.