Shop Kenworth T660 Engine & Performance Parts

Kenworth T660 Engine & Performance Parts

Want more power, better fuel economy, and smoother performance from your Kenworth T660? This Engine & Performance Parts lineup is built for drivers who want to push their trucks further without sacrificing durability. From fuel system upgrades and turbochargers to exhaust components and engine tuners, this collection has everything you need to fine-tune your T660 for better torque, horsepower, and efficiency. Whether you 're hauling heavy loads or running long miles, these parts help your truck perform at its peak. You ll find industrial-grade diesel pumps, high-efficiency filters, and powerful turbo setups all designed to increase output and reduce strain on your engine. Pair them with an exhaust upgrade or engine tuner, and you ll feel the difference in throttle response, pulling power, and fuel savings. These components are perfect whether you're upgrading a workhorse or building out a custom high-performance rig. And with parts built to withstand real-world use, you can count on them to hold up over the long haul. If you're ready to unlock your T660 's full potential, this performance parts lineup delivers the quality, power, and reliability you need to stay ahead mile after mile.

Frequently Asked Questions About Kenworth T660 Engine & Performance Parts

What model years are these engine and performance parts compatible with for the Kenworth T660?

Most of our Kenworth T660 engine and performance parts are designed to fit models from 2008 to 2017, which covers the entire production run of the T660. However, compatibility can vary based on your specific engine model (such as Cummins ISX, Caterpillar C15, or Paccar MX). Always check the product description for your exact engine type and year, or contact our support team with your VIN number to ensure proper fitment.

Will aftermarket performance parts void my truck's warranty or affect emissions compliance?

Installing aftermarket performance parts may impact your warranty coverage, particularly for newer trucks still under manufacturer warranty. For emissions compliance, any modifications to exhaust systems, EGR components, or engine tuning must comply with EPA and state regulations. We recommend checking with your dealer about warranty implications and ensuring any performance upgrades meet DOT and EPA requirements for your operating region.

What are the most cost-effective performance upgrades that provide noticeable improvements?

Based on customer feedback, the best bang-for-your-buck upgrades include high-flow air filters, performance exhaust manifolds, and quality turbo upgrades. These modifications typically provide improved fuel efficiency, better throttle response, and increased pulling power. Many drivers report fuel savings of 0.5-1 MPG with proper air intake and exhaust upgrades, which can pay for themselves within 6-12 months of regular operation.

How difficult is it to install these parts, and what tools are typically required?

Installation difficulty varies significantly by part type. Simple upgrades like air filters or exhaust tips can be completed in 30-60 minutes with basic hand tools. More complex installations like turbochargers, exhaust manifolds, or engine rebuild kits require specialized tools, diagnostic equipment, and typically 4-8 hours of labor. We provide detailed installation guides with most products, and many customers choose professional installation for major components to ensure proper fitment and avoid costly mistakes.

What's the typical lifespan of aftermarket engine parts compared to OEM, and what warranties are available?

Quality aftermarket parts from reputable manufacturers often match or exceed OEM lifespan when properly installed and maintained. For example, our premium turbochargers typically last 500,000-750,000 miles with regular maintenance, similar to OEM units. Most engine and performance parts come with warranties ranging from 1-3 years, with some manufacturers offering extended coverage. Always review the specific warranty terms for each product, as coverage varies by manufacturer and part type.