Drain Valve with Needle Seat - M12 x 1.5 Metric - Mack/Volvo - Replaces Mack 23038158 177.4022M12
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$27.65
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Fitment
Fits these trucks
Mack air systemsVolvo air systemsM12 x 1.5 metric drain portsScheduled draining; replaces valves that leak or stick
Always confirm your year, make & model before ordering.
Part numbers
OEM & interchange numbers
1 cross-refMack 23038158
Direct 1-to-1 replacement for every number above. Tap any number to copy.
Overview
Metric ports do not care what is in your 1/4 in NPT drawer. This needle seat drain valve distributed by FleetPro Parts & Tires uses an M12 x 1.5 metric thread and is the part you need when the truck is a Mack or a Volvo and the standard pipe-thread valve simply will not start in the boss. A drain that leaks or sticks costs you twice: air escaping while the truck sits, and the daily purge quietly getting skipped because the valve fights back. 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 Where It Matters: The M12 x 1.5 Needle Seat Advantage
The needle seat design closes on a fine, tapered seat, which is what lets a small valve seal cleanly and open under control rather than blasting the moment it cracks. That behavior matters on a scheduled drain, where you want the water out and the air kept in. Because the thread is M12 x 1.5 rather than an inch pipe thread, this valve seats in the metric port the way it was designed to and does not chase or damage the threads in the boss.
Fitting Mack and Volvo applications, it goes in wherever a leaking or sticking valve is what is stopping a driver from draining on schedule. At 0.2 lbs it is small enough to keep a spare in the truck alongside the fittings. At FleetPro Parts & Tires we would rather carry the correct metric part than watch someone force an imperial one. This Automann valve is a direct replacement for Mack 23038158, and it replaces the earlier 170.V23038158.
Vehicle Fitment & Compatibility
This Fleet Standard valve is intended for the following commercial applications:
- Make/Model: Mack; Volvo
- Port: M12 x 1.5 metric thread
- Valve Type: Needle seat drain valve
- Service: Scheduled draining; replaces valves that leak or stick
Direct Replacement & Cross-Reference Numbers:
This Automann drain valve serves as a direct replacement for the following part numbers:
- Mack Interchange: 23038158
- Automann Supersedes: 170.V23038158
- Automann Distributor #: 177.4022M12
Technical Specifications
- Component Type: Needle Seat Drain Valve
- Thread: M12 x 1.5 Metric
- Fits: Mack; Volvo
- Replaces: 170.V23038158
- OEM Reference: Mack 23038158
- Weight: 0.2 lbs
- Package dims: 2 x 1.5 x 1.5 in
- UPC: 889626801280
- Product Level: Fleet Standard Aftermarket
- Brand: Automann (Distributed by FleetPro Parts & Tires)
Key features
- Correct Metric Thread: An M12 x 1.5 body seats in the metric port properly instead of chasing or damaging the threads in the boss.
- Needle Seat Control: The fine tapered seat lets the valve seal cleanly and open under control on a scheduled drain.
- Built for Mack and Volvo: The right answer when an inch pipe-thread valve will not start in the port.
- Fixes Leaking or Sticking Valves: Replaces the valve that is quietly costing you air while the truck sits.
- Easy Spare to Carry: At 0.2 lbs it rides in the toolbox next to the rest of the air fittings.
Specifications
Component Type
Needle Seat Drain Valve
Thread
M12 x 1.5 Metric
Fits
Mack; Volvo
Replaces
170.V23038158
OEM Reference
Mack 23038158
Weight
0.2 lbs
Package dims
2 x 1.5 x 1.5 in
UPC
889626801280
Product Level
Fleet Standard Aftermarket
Questions
Will this fit my truck?
This part fits Mack air systems, Volvo air systems, M12 x 1.5 metric drain ports, Scheduled draining; replaces valves that leak or stick. Always confirm your year, make and model before ordering.
What part numbers does it replace?
Yes. It is a direct replacement that interchanges with Mack 23038158.
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.