HOSES & CABLES

Hoses & Cables For Peterbilt Trucks

Hoses and cables run throughout a commercial truck, routing coolant, fuel, air, and hydraulic fluid while connecting controls to the systems they operate. Over time, hoses harden and crack, cables stretch or fray, and connections weaken from vibration and heat cycling. We carry replacement hoses and cables for Peterbilt trucks across cooling, fuel, air, and control system applications.

Frequently asked questions about hoses & cables

How often should I inspect hoses on my Peterbilt?

Hose condition should be checked at every PM service. Key inspection points include squeezing hoses to feel for hardness or sponginess (both indicating deterioration), looking for cracks and swelling along the hose body, and checking clamp tightness and hose condition at the clamp bite points where failure most commonly starts. Coolant hoses on high-mileage trucks are often harder than they appear externally -- internal deterioration and collapse can restrict flow without visible outside signs.

What types of cables are most commonly replaced on a Peterbilt?

The most frequently replaced cables include the hood tilt cable, throttle cable on older mechanical-injection trucks, parking brake cable, and various control cables linking dash-mounted controls to chassis systems. Battery cables and ground straps also fall into this category and should be inspected regularly for corrosion and insulation condition. On newer multiplexed Peterbilt trucks, most control functions are handled electronically, reducing mechanical cable requirements.

Can I use universal hose sections for repairs on my Peterbilt?

For coolant and air system hoses, universal sections in the correct diameter can be used in many cases, particularly for straight runs. Molded hoses with specific bends usually need model-specific replacements to maintain proper routing and fit. For fuel system hoses, always use hose rated for diesel fuel -- not all rubber hose is fuel-resistant. Emissions system hoses and EGR-related components should use OEM-specification materials due to high temperatures and pressures involved.

Other parts you might need

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