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Precision engineering

Enabling free movement in two planes at the same time, the ball-pin is a critical component. That’s why our ball-pins are manufactured from high-grade steel and machined to micron tolerances. Together with a polyoxymethylene nylon ball-pin seat, they provide optimum durability and smooth joint operation.

Extensive testing

Delphi ball joints undergo rigorous performance tests including angular stress testing, where the ball is rotated through its angular and rotational travel under load, as well as a pull and push out test, to measure the force required for it to break away from the housing. These important safety tests ensure the ball joint can withstand the same forces as the OE part.

Longer service intervals

We provide a range of sealed ball joints, that are lubed for life with a high-specification grease, to minimise maintenance requirements. Alongside our precision ball-pin finish and improved rubber boot design, they offer longer ball joint service intervals and better grease retention.

Greater protection

To help prevent damage to the joint’s internal components, all our ball joints come with a special chloroprene rubber cover. The new and improved formula maintains its durability even in extreme temperatures, providing added protection from road dirt or salt and allowing continued free movement of the ball joint for a longer lasting part.

Three-year warranty – available in UK

As a guarantee of our OE-quality standards, we offer a three-year or 36,000-mile warranty on all our ball joints. So, you can fit Delphi steering parts with complete confidence.

Cataphoretic coating

Like many of our steering parts, Delphi ball joints feature an environmentally friendly cataphoretic coating for tougher and longer lasting protection from corrosion caused by salt, dirt and water and other contaminants.

Tech Tip

Delphi is advising technicians to help ensure a quality steering and suspension repair by replacing the entire ball joint component where the rubber boot is split, cracked, damaged or missing. In these instances, there is a high probability that damage to the ball joint may have occurred, indicating the joint is likely to fail even after the boot cover has been replaced. Replacing the entire ball joint component can help avoid potential premature failure, which can be safety-critical and costly.

By replacing the boot only and not the complete ball joint unit, the rubber boot could potentially seal in the damaging substances the joint has been exposed to, resulting in accelerated rust and corrosive damage to the joint. In addition, the ball joint is designed to operate with a grease lubricant.

A defective boot could lead to a loss of this essential lubrication, as it may be washed away with water, dry out or become coated with dirt and other debris.

The Delphi Difference

100 years of OE experience, supplier to the world’s top automakers
OE heritage and knowledge built into every aftermarket part
Comprehensive portfolio for a wide range of vehicles and model years
Streamlined SKUs for easy inventory management
Support through tools, tips and training

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1 min read

Steering and Suspension diagnostic tips

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Steering & Suspension How to DIYers Technicians 1 min read

Resource Highlights

In this article you will find out about a few quick Steering and Suspension diagnostic tips.

Think that your steering and suspension might be the cause of your vehicle problems?

Here are some quick tips:

Test on the ground.

Shake the steering wheel quickly, turning it left and right ninety degrees. There should not be excessive play or knocking noises. If the car has power steering, do this with the engine running. 

Test in the air.

Hang the suspension, raise the vehicle so that it hangs freely on a lift or jacks approved for the weight of the vehicle. With weight off the suspension, check each part for looseness, excessive play, damage, cracks, broken boots, or any other clues.

Check the fluid.

Fill fluid reservoir to manufacturer specifications.

For vehicles equipped with power steering that use power steering fluid, check to see if the fluid reservoir is full. If it isn’t, fill it to manufacturer specifications, and then check again after a while. If it has gone down again, check under the vehicle for signs of any fluid leakage. Leaks could potentially be in the steering pump, hoses or the steering rack itself. After filling, turn the steering wheel to the left and right three times with the engine running to get air out of the system.

Scan tools and advanced diagnostics.

You can effectively test the CAN bus steering angle sensor by following a few quick steps:

Use a scan tool to monitor chassis-related PIDs.
Use a lab scope to monitor high-speed bus activity when the steering wheel is turned. You should see an increase in bus traffic as the steering wheel turns. The two scope leads are connected between ground and the CAN hi and CAN low circuits. 
You can use a scan tool to reset the steering angle sensor after replacement of the steering column and various other steering components, including the sensor itself. In some vehicles, this is required after a battery power loss as well.