What's In The Box
This kit covers the service and emergency gladhands plus the 3-in-1 electrical cable that runs power, ground, and the auxiliary/stop-light circuit between tractor and trailer — the stuff that gets ripped off, cracked, or corroded until nothing seals right at the fifth wheel.
12ft length is the common spec for day cabs and most standard tractor setups. If you're running a sleeper or a longer wheelbase, measure your old cable end to end before you order — coiled cables stretch, so go by the straight-line working length, not what it looks like bunched up in the coil.
Gladhands in this kit are the standard 12-groove twist-lock style that's been industry standard for decades. Rubber seals inside are the wear item — check those first if you've got an air leak before assuming the whole gladhand is shot.
Why All These Numbers Cross
Haldex R11451, Velvac 035042, Phillips 12-008 and 12-008PDC, Tectran 13A1201 and 169125 — these all show up on the same physical kit because gladhand and 3-in-1 cable dimensions got standardized industry-wide a long time ago. A dozen manufacturers make the same footprint because trailer air/electrical hookups have to work across every fleet's mixed equipment.
Where you need to pay attention: cable pigtail connector type (7-way vs other electrical standards), gladhand seal material, and overall cable length. A kit that's 90% right but has the wrong connector pin count won't hook up, full stop.
Surest way to confirm — pull the number off your old cable's molded fitting or check the gladhand casting. If it's worn off, cross whatever fleet number you've got or send us a photo before you order.
Ordering From PartStop
We stock 11451 kits at the Tacoma counter for guys who need it same-day — walk in, walk out, back on the road. For everyone else we ship nationwide, usually next-day within the Northwest.
This is aftermarket, not a Haldex or Velvac branded box, but it's built to the same working dimensions and comes with our 6+ month warranty. If a gladhand seal fails or a cable connector goes bad in that window, bring it back.
Confirm fit by VIN or against your old part's number before ordering — trailer hookup kits are cheap insurance against a roadside air leak, but only if the connector and length match your rig.
11451 Cross-Reference & Interchange Numbers
These manufacturer and aftermarket numbers commonly cross-reference to 11451. 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 | TM3521JS, TR-029-1, 30-2151, 169127, PE13000, 451097, OTR6814, TM3521JE, 11441, 11470 |
| Velvac | 035042 |
| Haldex | R11451 |
| Phillips | 12-008PDC, 12-008 |
| Tectran | 13A1201, 169125 |
Frequently asked questions
Does 11451 fit my Freightliner Cascadia?
Likely yes on length and gladhand style, but confirm connector type on your 3-in-1 cable — pull the number off the old cable's molded end or check your VIN spec sheet before ordering.
Is this the same as Phillips 12-008?
Same footprint and function — 12-groove gladhands plus 3-in-1 cable at 12ft. Phillips 12-008PDC may have a different connector variant, so match against your old part's cable end, not just the length.
My gladhand seal is leaking but the rest of the kit is fine — do I have to buy the whole kit?
No, seals are usually sold separately. Only go with the full 11451 kit if the cable's cracked, the gladhand body is cracked, or you're replacing the whole setup at once.
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.