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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

Related product resources and downloads

1 min read

Key signs of a damaged suspension

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Steering & Suspension Need to Know Technicians 1 min read

Resource Highlights

Why suspension components take so much punishment and how to spot when they need repairing

In this piece, we’ll look at seven critical components within a vehicle’s suspension system, and what can go wrong with them.

Symptoms of poor or damaged suspension

One of the most obvious signs that a vehicle’s suspension needs attention is when your customer can feel bumps in the road more acutely. Suspension is a complex, multi-component system on the vehicle and this can add difficulty for the customer to describe the squeak, groan, or grind noise they’re experiencing. It’s best to replicate the fault on a short test drive with the customer if you can, to be sure you’re identifying what they’re reporting. This test drive time can be accounted for in the technician’s time, can increase first time diagnosis FTD, and can make all the difference in a positive customer service experience too.

An obvious symptom is when the vehicle drifts or pulls during turns. This means that the shocks are no longer up to the job of keeping the vehicle body stable when it’s turning. In extreme cases (and this is particularly true of commercial vehicles), this increases the chances of losing control of the vehicle, or even turning it over.

Problematic suspension can also increase stopping distances by up to 20% - a serious hazard. If your customer has noticed the vehicle’s bonnet lurching downwards while stopping, it’s a clear sign that the suspension needs attention.