Sterling A-Series Truck Exhaust Parts

Frequently Asked Questions About Sterling A-Series Truck Exhaust Parts

Will these exhaust parts fit my specific Sterling A-Series model year?

Our Sterling A-Series exhaust parts are designed to fit models from 1999-2009, including the A9500, AT9500, A9513, and A9522 series. However, there can be variations based on engine type (Cat C15, Detroit Series 60, or Cummins ISX) and whether you have a day cab or sleeper configuration. We recommend checking your VIN or calling our tech support at 1-888-875-7787 with your truck's specifics to ensure proper fitment before ordering.

What's the difference between aluminized and chrome exhaust stacks, and which lasts longer?

Aluminized steel stacks are coated with an aluminum-silicon alloy that provides good corrosion resistance at a lower price point, typically lasting 3-5 years depending on conditions. Chrome stacks feature a mirror-like finish and superior corrosion resistance, often lasting 5-8 years or more with proper care. Chrome requires regular polishing to maintain its appearance, while aluminized develops a matte gray patina over time. For trucks in harsh winter climates with heavy road salt exposure, chrome is worth the investment.

Do I need special tools or brackets to install these exhaust components?

Most Sterling A-Series exhaust installations require basic hand tools including wrenches, sockets, and potentially a reciprocating saw for removing old pipes. Stack installations typically use existing mounting brackets, but you may need new clamps (5-inch or 6-inch depending on your system). Flex pipes and elbows usually require exhaust clamps and may need minor adjustments for proper alignment. Professional installation typically takes 2-3 hours for a complete system replacement.

What exhaust diameter do I need for my Sterling A-Series truck?

Most Sterling A-Series trucks use 5-inch diameter exhaust systems, but some high-horsepower models or those with aftermarket modifications may have 6-inch systems. To verify, measure the outside diameter of your current exhaust pipe behind the turbo or at the muffler inlet. Never measure at crimped or expanded ends. If upgrading from 5-inch to 6-inch, you'll need adapters and may need to modify exhaust hangers for proper clearance.

How do I prevent exhaust leaks at the joints and connections?

Exhaust leaks commonly occur due to improperly tightened clamps, misaligned pipes, or worn gaskets. Always use new gaskets when installing exhaust components, especially at the turbo outlet and manifold connections. Apply high-temperature exhaust sealant at slip-fit connections for added security. Tighten band clamps evenly to avoid warping, and retorque all connections after the first 100 miles of operation when the system has gone through several heat cycles.