What You're Buying
This is a standard 1/2" NPT service gladhand, blue-coded like every other service line coupler out there (red is emergency, blue is service — don't mix them up on the tractor). Fits Freightliner tractor-trailer combos from '88 up through current production, since the gladhand pattern itself hasn't changed in decades.
Body's typically forged or cast, with a rubber seal gasket inside that does the actual sealing work against the trailer's gladhand face. The part numbers stamped on these — 1791001, 1200614, R11452 — are all house/aftermarket numbers tied back to the same physical coupler design.
If your old part is worn at the sealing face, has a cracked handle, or the coupling arm won't hold pressure anymore, swap it. These take a beating from hookups and road grime, so replacement is routine maintenance, not a big diagnosis.
How the Cross Numbers Line Up
The interchange list — TR-029-1, 30-2151, 169127, PE13000, 451097, OTR6814 — covers the major aftermarket brands that all make this same 1/2" service gladhand to the same basic footprint. Different manufacturers, same coupler geometry, because the industry standardized on this thread and seal size a long time ago.
What actually matters when you're cross-referencing: thread size (1/2" NPT here), seal/gasket type, and whether it's the straight-arm or angled version. Get any of those wrong and it either won't thread into your air line or won't seat right against the trailer's mating gladhand.
Surest way to confirm fit — pull the old coupler off, check the casting number stamped on the body, and match it against what's on your air line fitting now. Don't just go by year or model; parts get swapped over a truck's life and the casting number is the only thing that tells the real story.
Buying It From Us
We stock these in Tacoma and they're the kind of part that goes out same-day if you're local — no reason to wait around on a $12 coupler when your truck's sitting.
Ship nationwide too, so if you're not near us it still shows up fast. Comes with our standard 6+ month warranty, which is more than you need for a part like this but it's there.
One ask: confirm against your VIN or the number stamped on the old coupler before you order. Gladhands look alike across brands but the seal and thread details are what make or break the fit.
11452 Cross-Reference & Interchange Numbers
These manufacturer and aftermarket numbers commonly cross-reference to 11452. Use them to identify the part — then confirm the exact fit by VIN or the number stamped on your old unit before you order. An interchange is a starting point, not a fitment guarantee.
| Brand / Line | Cross-Reference Numbers |
|---|---|
| Cross-Reference | TR-029-1, 30-2151, 169127, PE13000, 451097, OTR6814, FG23806 |
Frequently asked questions
Does R11452 fit my 2015 Freightliner Cascadia?
Should — the 1/2" service gladhand pattern covers Freightliner tractors from '88 to current, and the Cascadia uses the same standard coupler. Pull your old one and check the casting number stamped on it to be sure before you order.
Is this the same as the PE13000 gladhand?
Same physical part, different brand stamp. PE13000 is another manufacturer's number for this exact 1/2" NPT service coupler design — cross-references to 11452 on our list. Match up thread size and seal type and you're good.
How do I know if I need the blue one or the red one?
Blue is service line, red is emergency line — check which gladhand you're pulling off the tractor. If it's cracked or worn on the service (blue) side, this is your part. Don't cross blue and red on install, air system won't work right.
Not sure it fits? We check before you pay.
Run your VIN and we’ll match parts to your exact truck, or call the counter — a person who knows trucks verifies fitment by OEM number before the order ships. No wrong-box returns.
More cross-reference guides
Need the part, not just the reading?
Every part below is a Premium Quality aftermarket Direct Replacement with published OEM cross-reference numbers, a 6+ month warranty and same-business-day shipping from Tacoma, WA. Not sure it fits? Run your VIN — or call and a person who knows trucks will verify fitment before you pay.