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Mack R Trucks

Mack R Trucks

Mack R Model semi trucks are a regular sight on the highway so make yours stands out with custom, chrome, and aftermarket parts from 4 State Trucks. When you drive a Mack R Model semi truck, you're going to enjoy a fuel efficient, safe ride in a truck that's rated as one of the best in the industry. Make your rig your own - whether you need aftermarket or chrome parts like bumpers, exhaust, seating, steering or fenders, 4 State Trucks has you covered. Hit the open road in style and comfort with the best custom gear for your Mack.

Universal Parts

Mack R Trucks

Find affordable, aftermarket alternatives and equivalent to OEM parts for your Mack R Truck model. If you're looking to upgrade the performance and appearance of your Mack R truck, our product lineup has a lot to offer. You can find parts and accessories to help elevate torque, handling, aerodynamic efficiency, and more. We have configurations, engine options, and customizable features to fit your needs. From the robust R Model to the versatile R Superliner, these trucks deliver top-notch performance, efficiency, and comfort. Whether you re hauling heavy loads or tackling tough job sites, Mack R Trucks are up for the challenge.

Frequently Asked Questions About Mack R Truck Parts

What years and models of Mack R trucks do your parts fit?

Our Mack R truck parts are designed to fit R-Model Macks produced from 1966 through 1989, including the R600, R685, R686, R688, RD600, RD688, RD690, RS700, and RS712 models. For bumpers specifically, we carry options for both early models (1966-1979) and later models (1980-1989). Always verify your truck's VIN and model year before ordering, as some parts have specific compatibility requirements based on production changes throughout the R-Model's run.

Are your Mack R bumpers made from chrome-plated steel or stainless steel?

We offer both chrome-plated steel and polished stainless steel bumpers for Mack R trucks. Chrome-plated steel bumpers provide the classic mirror finish at a lower price point but require regular maintenance to prevent rust. Our 304-grade stainless steel bumpers cost more initially but resist corrosion better and maintain their appearance longer with minimal upkeep. Stainless options are particularly popular for trucks operating in harsh weather conditions or coastal areas.

What mounting hardware and brackets do I need to install a replacement bumper?

Most replacement bumpers require the existing mounting brackets from your original bumper, as these are often reusable. However, we recommend inspecting your brackets for cracks or corrosion before installation. You'll typically need grade 8 bolts (usually 5/8" or 3/4"), lock washers, and flat washers. Some installations may require bumper-to-frame spacers or shims for proper alignment. We offer complete hardware kits that include all necessary fasteners for about $45-65.

How difficult is it to install a Mack R bumper, and what tools are required?

Installing a Mack R bumper typically takes 2-4 hours with basic mechanical skills. You'll need a socket set (including 15/16" and 1-1/8" sockets), torque wrench, floor jack or forklift to support the bumper during installation, and potentially a helper due to the weight (bumpers can weigh 80-150 pounds). The main challenges include aligning mounting holes, especially on older trucks where frames may have shifted, and properly torquing bolts to 150-180 ft-lbs to prevent loosening during operation.

What's the difference between OEM-style and aftermarket bumpers for Mack R trucks?

OEM-style bumpers match the original factory specifications for hole spacing, curve radius, and overall dimensions, ensuring a direct fit without modifications. Aftermarket options may offer additional features like built-in step plates, tow hook provisions, or extra light mounting holes. While aftermarket bumpers can provide enhanced functionality, they sometimes require minor drilling or adjustment during installation. OEM-style replacements typically range from $400-800, while custom aftermarket options can reach $1,200 depending on features and finish.

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