Delphi Rack and Pinion Bellows

Delphi Rack and Pinion Bellows: OE Expertise in Every Kit

A rack and pinion bellows — sometimes called a steering rack boot or gaiter — is the accordion-style rubber sleeve that seals and shields the inner tie rod and steering rack shaft from road grime, moisture, and debris. When a bellows cracks or tears, contaminants infiltrate the rack assembly, accelerating wear and eventually compromising steering precision and safety. Replacing a damaged boot promptly with a quality part is one of the most cost-effective ways to extend the life of an otherwise expensive steering rack.

Delphi brings deep OE credibility to this category. Rack and pinion bellows from Delphi are engineered under the same standards the brand applies to the original components it supplies to vehicle manufacturers around the world. Delphi's OE safety technology is fitted to millions of vehicles worldwide, and that same expertise is applied directly to its aftermarket steering portfolio — meaning you're getting factory-caliber protection without sourcing straight from the dealership.

What Sets Delphi Bellows Apart

Delphi's rack and pinion bellows kits are purpose-built to address the real-world punishment steering components endure. A few standout engineering details make the difference:

• Extreme temperature performance: The materials used in Delphi bellows kits are validated to perform at temperatures below -40°F and over 248°F, so cold-climate cracking and under-hood heat degradation are both accounted for.
• Salt spray durability: Parts are exposed to 720 hours of salt spray testing, meaning corrosion resistance is built in from the start — not an afterthought.
• Cataphoretic coating: Vehicle-specific materials include a cataphoretic coating to prevent corrosion and extend service life in harsh driving environments.
• Dimensional and material analysis: Delphi conducts extensive dimensional and material analysis on each part to ensure the very best compatibility between the OE design and the aftermarket replacement — no guesswork, no loose fits.
• Debris-sealing design: The kits are specifically designed to keep road debris out of the inner tie rod and steering rack shaft, delivering a precise seal that prevents premature wear and protects the integrity of the rack assembly.

Trusted by OEMs, Proven in the Aftermarket

Delphi Technologies — now a brand of BorgWarner — is trusted by over 26 major global OEMs and offers a catalog of more than 8,000 steering and suspension products with over 98% vehicle coverage. While the brand has long been recognized in North America for its fuel management expertise, its steering and suspension portfolio carries equal weight in global markets, and is now expanding its import-focused steering range for North American technicians and DIYers alike.

Whether you're a professional technician restoring a steering rack to factory condition or a hands-on enthusiast tackling a DIY repair, Delphi's rack and pinion bellows kits are engineered to help you get the job done right the first time — with the confidence of OE-level materials and testing behind every part.