how is this item installed?

This is a sensor to send rotation speed of the front axle to the cruise control. A magnet (supplied with this item) is mounted to the axle rotates. This sensor/ coil is attached with a bolt thru the the center of the coil to the bracket short part of the 'L'. Then the 'L' bracket is attached to a housing bolt near the magnet. The the bracket is bent as needed to fit your vehicle so you may need a vise and good pliers or vise grip to custom fit.

Can it make a 4000ppm vss signal ?

I don't know the answer but you can contact Rostra Accessories at 800 782-3379 as they make after market cruise controls

is the pulse gen. that's currently on my van, at fault..?? Does anyone know what the resistance value of this component is..?? or continuity ??

I don't own that vehicle anymore so can't measure but all it is is a coil of wire. I'd suggest, unless it is visibly beat up or corroded, if it has continuity /under 1K (1000 ohms) it is likely ok. Be sure to check so you include the wire connection themselves. That would most likely place to corrode and open. Best wishes!

How many magnets go on the drive shaft? Is therw a better way to secure them than a zip tie?

One magnet goes on the driveshaft (although my kit came with three). If you use more than one, the controller will think you're going twice as fast. It is very small, so balance is not an issue. The zip tie it comes with is pretty good quality, but I agree; something other than plastic would be nice. If I lose mine, I will find some non-magnetic wire, and secure it with that. (Maybe that's why they send 3!) A blob of epoxy on a spot that's been sanded clean might work well, too (along with the zip tie).

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250-4165 Magnetic VSS Speed Pulse Generator Kit for Rostra and Audiovox Cruise Control

Product ID: 11061975

Details

Brand
Rostra
Item Weight
12 ounces
Item dimensions L x W x H
2 x 12 x 9
Material
Metal Plastic
Unit Count
1 Count

⚡Precision speed pulse signal

🏍️Universal vehicle compatibility

🛠️Complete installation kit

S$136

Duties & taxes included

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Description

⚡ Cruise smarter, not harder — speed pulse perfection in a kit!

UNIVERSAL VEHICLE FIT - Works with front/rear wheel drive cars, motorcycles, and custom builds.
PLUG PLAY VERSATILITY - Compatible with Audiovox, Rostra, and SMS cruise controls for seamless integration.
TRUSTED QUALITY SUPPORT - Backed by Rostra’s 1-year warranty and top-rated customer satisfaction.
ALL INCLUSIVE INSTALLATION KIT - Includes magnets, mounting bracket, tie strap, and hardware for quick setup.
EFFORTLESS SPEED SIGNAL GENERATION - Delivers accurate speed pulses for flawless cruise control performance.

The 250-4165 Magnetic VSS Speed Pulse Generator Kit by Rostra is a precision-engineered solution designed to create the essential speed signal for cruise control systems. Compatible with select Audiovox, Rostra, and SMS models, this kit is perfect for street rods, custom cars, and motorcycles lacking a VSS wire. It includes five magnets, a magnetic pickup, mounting bracket, tie strap, and hardware, ensuring a straightforward installation. Rated highly by users and backed by a 1-year warranty, it supports both front and rear wheel drive vehicles, delivering reliable cruise control functionality.

Specifications

ASIN	B0009GVUG8
Best Sellers Rank	#222,081 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #10 in Pulse Generators
Brand Name	Rostra
Customer Reviews	4.6 4.6 out of 5 stars (97)
Item Dimensions	2 x 12 x 9 inches
Item Weight	12 ounces
Manufacturer	Rostra
Material Type	Metal, Plastic
Model	250-4165
Part Number	250-4165
UPC	725975207260 044476541650
Unit Count	1 Count
Warranty Description	1 yr warranty

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