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- Mack RD Truck Universal Elbows, Piping & Comp.
Mack RD Truck Universal Elbows, Piping & Comp.
Frequently Asked Questions About Mack RD Truck Universal Elbows, Piping & Comp.
What diameter sizes are available and will they fit my specific Mack RD model year?
Our universal elbows and piping components come in standard exhaust diameters of 4", 5", and 6". These parts are designed to fit all Mack RD models from 1988 through 2007, including RD688, RD690, and RD600 series. The universal design means they'll work with both single and dual exhaust configurations. Always measure your existing exhaust diameter before ordering to ensure proper fitment.
Are these parts made from aluminized or stainless steel, and how long will they last?
We carry both aluminized steel and 304 stainless steel options. Aluminized steel components typically last 3-5 years depending on your operating conditions and are more budget-friendly. Stainless steel parts offer superior corrosion resistance and can last 8-10 years or more, making them ideal for trucks operating in harsh weather conditions or coastal areas. Each product listing clearly indicates the material type.
Do I need special tools or clamps for installation, and can I install these myself?
Installation can typically be done with basic hand tools including wrenches, a reciprocating saw for removing old parts, and exhaust hangers. You'll need appropriate exhaust clamps (sold separately) - we recommend heavy-duty band clamps for a secure, leak-free connection. Most experienced mechanics or handy truck owners can complete the installation in 1-2 hours. Professional installation is recommended if you're modifying your exhaust routing significantly.
What's the difference between mandrel-bent and standard elbows for performance?
Mandrel-bent elbows maintain a consistent inner diameter throughout the bend, providing better exhaust flow and potentially improving fuel economy by reducing back pressure. Standard crush-bent elbows are more affordable but create slight restrictions at the bend. For stock applications, standard elbows work fine. If you're running modified engines or want optimal performance, mandrel-bent components are worth the extra investment.
Will these universal parts affect my truck's emissions compliance or void warranties?
These exhaust components are designed as direct replacement parts that maintain factory specifications. They won't affect emissions compliance when used to replace damaged sections of existing exhaust systems. However, if you're modifying the exhaust routing or removing emissions equipment, check your local regulations. For trucks still under warranty, consult your dealer before making modifications, though replacing worn exhaust piping with equivalent parts typically doesn't affect warranty coverage.