What You're Actually Buying
This is the 7-pole plug end that mounts on the tractor and mates to the trailer's 7-way socket - handles running lights, turn signals, brake lights, backup lights, and the auxiliary/battery charge circuit depending on how your fleet wires it. It's not the socket, it's the plug side, so don't order this thinking it goes on the trailer.
Heavy-duty trucks running standard 7-way round setups use this across a lot of makes - it's a generic industry pattern, not something exclusive to one truck brand. Fits most Class 6-8 straight trucks and tractors using the SAE J560 style 7-way connector.
Why All These Numbers Cross
Phillips practically wrote the book on this connector style, so 15-730 and the DSP variant show up as the reference point most other brands cross to. PE27100, 670-P7, and 11-700 are other manufacturers making the same physical part to fit the same 7-way pattern - same pin count, same shell shape, same mounting.
Where guys get burned is the DSP suffix - that usually means a dust seal plug or a slightly different sealing boot version. If your old one had a rubber cap or spring-loaded cover integrated into the housing, check that detail against what you're ordering. Also check if you need weatherpack-style pins vs standard blade pins on your existing wiring - that's not something a part number alone tells you.
Surest way to confirm: pull the old plug, read whatever number's stamped or molded on the housing, and match it here. If it's worn off, snap a picture of the pin layout and shell shape and bring it to the counter.
Ordering It Through Us
$11.99, and we keep these in stock at the Tacoma counter - it's a bread-and-butter electrical part, not something we have to special order. Same-day if you're local, otherwise it ships nationwide and gets there fast since it's small and light.
Comes with our standard 6+ month warranty. It's an aftermarket part, not going to carry an OEM stamp, but it's built to the same connector spec your original used - confirm fit against your VIN or the old part number before you install, and call the counter if you're not sure which version your trailer wiring needs.
PS-AB.01.UN.008 Cross-Reference & Interchange Numbers
These manufacturer and aftermarket numbers commonly cross-reference to PS-AB.01.UN.008. 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 |
|---|---|
| OE/Cross-Ref | 15-730, 15-730DSP, PE27100, 670-P7, 11-700 |
| Supplier P/N | TR0241S115 |
Frequently asked questions
Does 15-730 fit my International tractor?
Depends on what 7-way plug your truck came with from the factory - 15-730 is a Phillips number for the standard round 7-pole connector, which most Class 8 trucks use regardless of chassis brand. Pull your old plug and match the number or pin pattern before ordering, and check your VIN build sheet if you're not sure.
Is TR0241S115 the same as the Phillips 670-P7?
They cross to the same connector spec - same 7-pin round pattern - but 670-P7 is a different manufacturer's part number, not a Phillips number itself. Functionally interchangeable, but confirm the shell shape and pin size against your original before assuming it's a drop-in.
How do I know if I need the DSP version or the regular one?
DSP usually indicates a dust seal or weatherproof boot built into the housing. If your old plug had a spring cover or integrated seal and this one doesn't (or vice versa), it'll still connect electrically but won't seal the same way. Check the old part before ordering, or bring it to the counter and we'll match it up.
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.