Ford Factory Tow Package Includes?
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Elder User
Joined: May 2004
Posts: 749
Likes: 2
From: Phoenix, Az
Ford Factory Tow Package Includes?
My truck build sheet shows my truck has the factory installed tow package. How do I determine exactly what is included in this package? Other than a pigtail/ plug for trailer, and a frame mounted hitch? I believe there are relays in the fuse box under the hood, and a hookup for a brake controller in the cab. My truck has 4" blocks (F350 factory type) at the rear axle, and it does ride like a 5 ton truck, lol.
Cargo Master
Joined: Oct 2015
Posts: 2,745
Likes: 72
From: West Virginia
For 1999 option code 531 for the Super Duty F-Series includes:
Heavy duty battery (gas engines only)
Trailer wiring harness (7-pin)
Heavy duty alternator (gas engines only)
Trailer brake wiring/feed kit
Front stabilizer bar (4x2 pickups only)
Rear stabilizer bar (DRW 4x2 pickups only)
Option code 535 for the F-150/250 includes:
Super engine cooling
Heavy duty battery (gas engines only)
Trailer wiring harness (7-pin)
Class III frame-mounted hitch receiver
Aux. auto trans oil cooler
Trailer hitch/receiver options:
-Super Duty F-250/350 pickups: Class IV (option code 86R)
-F-150/250 pickups: Class III (included with Class III Trailer Tow Group - Option Code 535)
Heavy duty battery (gas engines only)
Trailer wiring harness (7-pin)
Heavy duty alternator (gas engines only)
Trailer brake wiring/feed kit
Front stabilizer bar (4x2 pickups only)
Rear stabilizer bar (DRW 4x2 pickups only)
Option code 535 for the F-150/250 includes:
Super engine cooling
Heavy duty battery (gas engines only)
Trailer wiring harness (7-pin)
Class III frame-mounted hitch receiver
Aux. auto trans oil cooler
Trailer hitch/receiver options:
-Super Duty F-250/350 pickups: Class IV (option code 86R)
-F-150/250 pickups: Class III (included with Class III Trailer Tow Group - Option Code 535)
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Elder User
Joined: May 2004
Posts: 749
Likes: 2
From: Phoenix, Az
TY, wrvond. That's the kind of info I was looking for. My build sheet doesn't list options, but it does show a tow package, and a HD battery. The wire pigtail does support a 7 wire connector, and it has a Kelsey Hayes electric brake controller installed. I was doing some research, and the rear suspension does include a 3.69" block with an auxiliary leaf spring, so that explains that. The truck had a class IV hitch installed when I bought it with a 4/7 pin connector.
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Cargo Master
Joined: Oct 2015
Posts: 2,745
Likes: 72
From: West Virginia
Here's some more information you might find useful:
The base Pickup comes with a 4-wire connector at the left rear of the frame.
Ordering the "Trailer Towing Package", Option Code 531, provides the following:
The base Pickup comes with a 4-wire connector at the left rear of the frame.
Ordering the "Trailer Towing Package", Option Code 531, provides the following: - Seven (7) blunt-cut wires at the left rear of the frame, fully functioning with all relays
- installed (replacing the 4-wire connector).
- Front Stabilizer Bar on 4x2. Rear Stabilizer Bar on 4x2 DRW only.
- Trailer Brake Wiring Kit. Brake controller circuit is labeled and found in the wiring harness
behind the removable panel under the steering
column. In-cab brake controller to be purchased separately. Mating connector for under-dash
trailer brake wire is not available through Ford. - HD 78 AH (750 CCA) Battery.
- HD 115 Amp. Alternator (gas engine only).
Thread Starter
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Elder User
Joined: May 2004
Posts: 749
Likes: 2
From: Phoenix, Az
My truck has at the driver side frame rail a pigtail with a gray squarish female connector, but I am unsure at this moment as to how many wires. There was a male connector that mated to the female connector that terminated in a 4 flat/7 round connector to plug a trailer connector into.
The truck side connector had the cover broken off, so I just ordered a new connector Ford PN YC3Z-13A576-CA. It is supposedly the correct part for 1999-2001 F250 SD. The body connector shows 7 male pins, so we shall see when it gets here.
The truck side connector had the cover broken off, so I just ordered a new connector Ford PN YC3Z-13A576-CA. It is supposedly the correct part for 1999-2001 F250 SD. The body connector shows 7 male pins, so we shall see when it gets here.
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