The factory mounting bolt set for Coleman Mach 8000 series rooftop air conditioners. When your existing bolts are stripped, corroded, or lost during a repair, this four-bolt pack gets your unit secured back to the roof with the correct OEM-spec hardware -- no guesswork on length or thread.
Rooftop AC mounting bolts take a beating -- seasonal thermal cycling, vibration from the road, and exposure to moisture and UV all take a toll on hardware over time. Using the wrong bolt length risks improper clamping of the interior ceiling assembly, potential water intrusion at the roof gasket, and a unit that may shift or vibrate at highway speeds.
The Coleman Mach 8333-3211 kit includes the exact four bolts specified for the 8000 series chassis. At 9 inches in length, these bolts pass through the rooftop unit shroud, the roof decking, and thread into the interior ceiling assembly to draw the unit tight against the roof gasket -- the same installation geometry Coleman Mach engineers designed the 8000 series around.
Direct factory replacement for the 8000 series mounting bolt set -- correct thread, correct length, correct clamping geometry.
Includes all 4 mounting bolts needed for a complete installation or full hardware refresh -- no need to source bolts individually.
Sized specifically for standard RV roof decking thickness used with Coleman Mach 8000 series units. Provides correct draw-down on the roof gasket.
Part number 8333-3211, sold under SKU 70-7387. Sourced from the Coleman Mach replacement parts program for reliable fitment.
If you are doing a full reinstall or replacing a damaged unit, also check that your roof gasket, interior ceiling assembly, and mounting nuts are in good condition before torquing down. The bolts alone will not seal the unit -- the gasket must be properly seated and the ceiling assembly undamaged.
Do not exceed the torque specification listed in the Coleman Mach 8000 series installation guide. Overtorquing can crack the interior ceiling assembly or distort the roof gasket, leading to leaks. Hand-tighten until snug, then torque evenly in a cross pattern to pull the unit down uniformly.
Inspect mounting bolt condition each season during your rooftop AC service. Apply a small amount of anti-seize to the threads before reinstallation in high-humidity or coastal environments to make future removal easier without damaging the bolts or ceiling assembly.