Lomax Tri-Fold 170 Hard Tonneau Cover
Our Lomax Tri-Fold 170 delivers rugged aluminum security in a low-profile folding design that works the way you do. This hard tonneau cover folds in three sections for quick partial or full bed access — no removal required when you need to haul taller cargo.
We engineered the 170 with aircraft-grade aluminum panels that sit flush with your truck bed rails for a factory-finished look. The weather-resistant design keeps your gear protected from rain, snow, and road debris while maintaining excellent fuel efficiency. Installation takes about an hour with basic hand tools, and our integrated clamp system means no drilling into your truck bed.
Tri-Fold 170 specifications
Aluminum construction & finish
We build every Lomax 170 panel from aircraft-grade aluminum that resists dents and corrosion season after season. The powder-coated matte black finish matches most truck bed liners and holds up against UV exposure, road salt, and temperature extremes.
Our three-panel design uses marine-grade stainless steel hinges that won’t bind in freezing conditions. The reinforced center panel supports the weight distribution when you fold the cover forward or stack panels against the cab for full bed access. This construction keeps your tonneau cover looking factory-fresh for years without warping or fading.
Tri-fold operation & bed access
The 170’s three-section folding system gives you choices other hard covers can’t match. Fold the rear panel forward for quick access to the last third of your bed without fully opening the cover. Need more room? Fold all three panels against the cab in under 30 seconds for complete bed access.
Our hinges lock securely in the open and closed positions so panels stay where you put them. When closed, the cover sits just two inches above your bed rails — low enough to maintain aerodynamics and high enough to clear most bed liners and spray-in coatings. You can haul ladders, lumber, or camping gear without removing the entire tonneau cover from your truck.
Installation & compatibility
We designed the Lomax Tri-Fold 170 to install without drilling, welding, or permanent modifications to your truck. Our integrated clamp system secures the cover to most factory bed rail configurations in about an hour using standard hand tools.
The 170 works with trucks that have stake pocket holes and standard bed rails. We include all mounting hardware, rubber seals, and detailed instructions in every box. If you need to remove the cover for seasonal use or trade-in, the clamps detach cleanly without leaving marks on your bed rails. Check our vehicle fit guide to confirm compatibility with your specific truck make, model, and bed length before ordering.
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Common questions about the Lomax 170
No, the 170 installs using our integrated clamp system that secures to your factory bed rails without drilling. You'll use the existing stake pocket holes on most trucks. Installation is completely reversible if you remove the cover later, and it won't leave permanent marks on your bed rails or paint.
Yes, the tri-fold design lets you fold just the rear panel forward for access to the back third of your bed, or fold all three panels against the cab for full bed access. The hinges lock in place so panels stay secure in the open position while you drive. This flexibility means you rarely need to remove the entire cover when hauling ladders, toolboxes, or other tall cargo.
The 170 supports up to 400 lbs of evenly distributed weight when closed. This rating covers snow accumulation, rooftop cargo carriers, and light recreational equipment. We don't recommend using the cover as a standing platform or concentrating heavy weight on a single panel, as this can stress the hinges over time.
The Lomax 170 works with most drop-in bed liners and spray-in coatings. The cover sits about two inches above your bed rails when closed, providing clearance for standard liners. If you have an unusually thick aftermarket liner or custom bed rail system, check our fit guide or contact us to confirm compatibility with your specific setup.
We warranty the aluminum panels, stainless steel hinges, and frame components for the lifetime of the original purchaser against defects in materials and workmanship. The warranty covers cracking, warping, and finish failure under normal use. Weather seals, locks, and clamps are covered for three years. The warranty doesn't cover damage from accidents, improper installation, or modifications.
Wash the cover every few weeks with mild automotive soap and water using a soft cloth or sponge. Rinse thoroughly and dry with a microfiber towel. Apply silicone spray to the rubber seals twice a year to keep them pliable. Check the mounting clamps annually and tighten if needed. Avoid pressure washers on the hinges and locks to preserve the seals and lubrication.
The 170 includes two independent rotary locks that come with their own keys. While we don't offer factory keying to match your truck ignition, most locksmiths can rekey the tonneau locks to match your vehicle key for a small fee. This service typically takes about 30 minutes and lets you use one key for both your truck and bed cover.