Description
2007 MAC END DUMP TRAILER - AR450 Steel 39' Frameless, 58 yrd. Barn Door, Alcoa's Electric Tarp
Specs and Dims
Description Continued...
2007 Mac End Dump Trailer
Proven Reliability for Heavy-Duty Hauling Operations
The 2007 Mac end dump trailer delivers dependable, high-capacity material transport for construction, agriculture, and hauling operations without the operational headaches that plague lesser-built equipment. With aluminum body construction, robust frame design, and a proven hydraulic end dump system, these trailers continue to perform nearly two decades after rolling off the Mac Trailer Mfg production line. Whether you're moving aggregate, grain, or demolition debris, a well-maintained 2007 Mac end dump gives you the reliability of a purpose-built workhorse at a fraction of new-unit pricing.
Why You'll Love It
-
Superior Payload Capacity – End dump trailers can carry more material than standard dump trucks, and the 2007 Mac is no exception. With body lengths ranging from 28 ft to 41 ft, side wall heights from 54 to 84 inches, and GVWRs up to 80,000 lbs, these trailers maximize material per trip. Steel AR450 frameless models achieve volumes near 58.7 cubic yards-roughly 30–40% more than a typical rigid dump truck bed. Frameless designs of end dump trailers contribute to lighter weight and increased payload capacity, meaning fewer trips and lower fuel costs across your operation.
-
Hydraulic End Dump System – Mac's hydraulic modules deliver maximum pressure around 3,000 psi with flow rates of approximately 30 gallons per minute, enabling fast, efficient unloading with minimal operator effort. End dump trailers can unload at angles up to 45 degrees, and the single-acting cylinder design simplifies controls while reducing maintenance compared to double-cylinder systems. That translates to less downtime, faster cycle times, and more loads moved per day.
-
Aluminum Construction Benefits – MAC trailers often feature lightweight aluminum construction for high payload capacity. Aluminum trailers can save over 1,000 pounds in weight compared to all-steel builds, giving you more payload margin within legal GVWR limits. Aluminum construction reduces corrosion compared to steel, protecting body panels, sides polished aluminum wheels, and gate hardware from rust degradation-especially valuable in wet or chemically exposed environments.
-
Mac's Build Quality – From steel I-beam frames to extruded aluminum bottom rails that protect wiring harnesses, Mac built these trailers to last. Options include barn door or top hinge gate designs, air ride suspension, electric tarp systems, and factory installed liner packages. One-owner 2007 Mac units still operating today prove that Mac's build quality stands up to years of hard service.
-
Versatile Applications – End dump trailers are versatile and can manage various materials including sand and rock. They are commonly used in construction and mining industries for transporting aggregates and debris. End dump trailers are also utilized in agriculture for transporting grain and fertilizers-the 2007 Mac accommodates this with optional grain door configurations, poly liners, and roll tarp setups. From waste management to mining operations, this trailer adapts to your workload.
What Makes It Different
Most used dump trailers from 2007 suffer from worn pivot points, rusted frames, frayed wiring, leaking hydraulics, and sagging suspension. Finding a trailer from that era that still delivers reliable performance requires a brand that built to a higher standard from the start.
The 2007 Mac end dump trailer is built differently:
-
Mac's Engineering Excellence – Mac's frame style incorporates either steel I-beam or extruded aluminum I-beam construction with hollow-core bottom rails that enclose and protect wiring from debris damage. Sidewall panels use high-grade aluminum alloys (.175 to .250 inch thickness), while floor plates run .250 to .375 inches thick. Steel dump beds are preferred for hauling rough materials, and Mac's AR450 high-strength alloy steel versions handle the most abrasive loads. Combined with heavy-gauge crossmembers and aluminum draft arms, the structural integrity of these units outperforms generic or lower-grade competitors from the same era.
-
Hydraulic System Reliability – Where competitors circa 2007 often used smaller pumps and lower-tier cylinder designs, Mac equipped their trailers with hydraulic modules rated at 3,000 psi and 30 GPM flow. Cylinder bore diameters of approximately 3½ inches with 1.5-inch shaft diameters provide strong, consistent lifting capacity. Internal routing of hydraulic lines through protected channels reduces exposure to road debris and accidental damage-a detail many rival manufacturers skipped entirely.
-
Resale Value Retention – Used 2007 Mac trailers consistently sell in the $10,000–$35,000 range depending on configuration, condition, and body material. A steel AR450 frameless unit with 58.7 cubic yards of capacity holds around $20,000. An aluminum-body quad axle aluminum dump unit from Alden, NY sold for approximately $15,400. These figures represent significant value retention compared to lesser-known brands from the same period, many of which now fetch only scrap prices. Mac's reputation and name recognition remain a key factor in maintaining resale strength.
How It Works
-
Load Material Select the body configuration that matches your material-whether hauling rock, gravel, grain, or demolition debris. Materials commonly transported include sand, gravel, asphalt, and demolition debris. The 2007 Mac accommodates loads in bodies ranging from 28 to 41 feet in mac dump trailer length, widths of 96–102 inches, and side wall heights of 66–72 inches. Common side heights for end dump trailers range from 54 to 84 inches across the industry. Load material via the front bulkhead using loaders or conveyors, distributing weight evenly and staying within the rated GVWR. Aluminum body units reduce empty trailer weight, giving you more usable payload margin.
-
Transport Safely Stability during transport depends on suspension type-air ride composition provides the smoothest highway ride-along with axle configuration, proper tire sizing (typically 11R24.5 or 455/55R22.5), and functioning air brakes. Frame rails must be intact with no cracked crossmembers. Gates and hinges should latch securely, rear fenders should be in good condition, and the electric slide tarp mesh or roll tarp should be deployed to contain the load. End dump trailers must be used on firm, level ground to prevent tipping during unloading, so plan your dump site accordingly.
-
Hydraulic Dump Operation Engage the wet-kit from your tractor to activate the hydraulic system. The end dump body, hinged at the rear, rises via a single-acting hydraulic cylinder operating at up to 3,000 psi. End dump trailers can unload at angles up to 45 degrees, allowing gravity to clear material through the barn door or two-way tailgate. Once dumping is complete, the cylinder retracts, the body lowers, and you secure the gate. Full unload times run approximately 5–6 minutes depending on body size and oil flow rate. Always verify the body is fully lowered and the gate is latched before moving.
Product Details
-
Construction Material: Aluminum body options with steel or aluminum/steel combination frame configurations. Steel versions use AR450 high-strength alloy for maximum abrasion resistance-steel dump beds are preferred for hauling rough materials. Aluminum trailers offer higher payload capacities than steel and superior corrosion resistance. End dump trailers typically have steel dump beds for durability in heavy aggregate applications.
-
Dimensions: Available in lengths from 28 ft to 41 ft. Widths typically 96–102 inches. Side wall heights range from 66 to 72 inches on common configurations. They are available in various lengths, including 28 ft and 40 ft. A 39 ft steel AR450 frameless model delivers 58.7 cubic yards of volume. A 40 ft aluminum body model is rated at 80,000 lbs GVWR.
-
Axle Configuration: Tandem, tri-axle, or quad axle options with closed tandem air ri or spring ride suspension. Steel axle type assemblies with air ride wheels are standard on higher-spec models. Rear axles feature standard air brake systems. Tires typically 11R-24.5 with aluminum wheels. End dump trailers typically have a maximum GVWR of 126,000 lbs in multi-axle configurations. The legal payload varies based on axle configurations and local weight laws. Front lift axle or rear lift axle options provide additional weight distribution flexibility.
-
Hydraulic System: Mac hydraulic modules rated at 3,000 psi maximum pressure with approximately 30 GPM flow. Cylinder bore diameter approximately 3½ inches with 1.5-inch shaft diameter. Cylinder stroke sufficient to achieve full dump angle. Full unload cycle approximately 5–6 minutes on standard body sizes.
-
Maintenance History – What to Expect: On a 2007 unit, inspect the frame for cracked crossmembers, weld fatigue, and corrosion-especially along the front bulkhead and gate areas. Check hydraulic cylinder rods for pitting, seals for leaks, and hoses for wear. Review suspension components: air bags or springs, hub assemblies, brake lining thickness, and drum integrity. Inspect body panels for dents, aluminum fatigue cracks, loose rivets, or weld separation. Verify electrical wiring harness condition near bottom rails and tailgate areas. Confirm all lights function properly. Check for any recall history by VIN-Mac issued a 2018 recall on certain trailers with AXN axles regarding wheel end retaining clips. Proper maintenance can extend the lifespan of end dump trailers significantly.
Who It's For
The 2007 Mac end dump trailer serves operators who need proven heavy-duty hauling capability without the capital outlay of new equipment.
-
Construction Companies needing reliable aggregate, asphalt, and demolition debris hauling-they are commonly used in construction for transporting aggregates and debris
-
Agricultural Operations requiring grain and feed transport with grain door configurations and liner options
-
Small to Medium Contractors looking for a cost-effective dump trailer solution that delivers commercial-grade performance
-
Mining and Waste Management Operations demanding high-volume material movement in demanding environments
If you want proven Mac reliability, significant payload capacity, and manageable investment, the 2007 Mac end dump trailer fits your needs. Financing options can extend terms beyond traditional banks, and flexible financing options allow sourcing equipment anywhere. Hale Trailer offers financing options for trailer purchases. Equipment financing can reduce monthly expenses by extending terms, making the availability lease prices and price rental prices accessible to a wider range of buyers. Ritchie Bros. offers over $1B in open credit approvals for equipment purchases.
Frequently Asked Questions
What should I inspect on a 2007 Mac end dump trailer? Start with the hydraulic system: check cylinders, hoses, and pumps for leaks, pitting, or pressure loss. Verify lift arms and pivot pins are aligned and not excessively worn. Inspect the frame for cracked crossmembers, sagging, and weld fatigue-especially along the front bulkhead, underbody, and gate areas. Examine suspension and axle assemblies including air bags or springs, hubs, and brake components. Review body panels and sidewalls for dents, corrosion, or aluminum fatigue. Test gate hardware-hinges, latches, grain door, or two-way tailgate operation. Check the electrical wiring harness condition near bottom rails and all lighting. Inspect tires, rims, and aluminum wheels for wear or damage. Always verify VIN-specific recall history.
How much payload can a 2007 Mac end dump handle? Capacity depends on configuration. Steel AR450 frameless bodies achieve approximately 55–60 cubic yards with 39 ft length and high side walls. Weight capacity is governed by GVWR-commonly 80,000 lbs for heavy-duty units, though end dump trailers typically have a maximum GVWR of 126,000 lbs in multi-axle configurations. Aluminum body units weigh less empty, allowing more usable payload within legal limits. The legal payload varies based on axle configurations and local weight laws, so always confirm your operating state's regulations before loading.
Are parts still available for 2007 Mac trailers? Yes. Mac Trailer Mfg continues to produce dump trailers and maintains support for body components, gates, hinges, and hardware. Standard items-wheels, tires, bearings, brakes-are widely available through any commercial trailer parts supplier. Hydraulic pumps and cylinders can be serviced by aftermarket hydraulic shops. Some specialized components like custom aluminum extruded bottom rails may require additional lead time. Mac has demonstrated long-term product support, including issuing a 2018 safety recall on certain trailers with AXN axles for wheel end retaining clip issues, confirming their commitment to owner safety well beyond the original sale date.
Ready to Upgrade Your Hauling Capacity?
Stop running extra trips with undersized equipment or unreliable trailers that cost you more in downtime than they save on the purchase price.
The 2007 Mac end dump trailer delivers the payload capacity, hydraulic efficiency, and structural durability that Mac Trailer Mfg is known for-at a price point that makes commercial-grade hauling accessible. With aluminum or steel body options, air ride suspension configurations, and a hydraulic system built for thousands of cycles, this trailer is ready to earn its keep on your job site.
Take the next step: review availability quantity and stock number listings, schedule a thorough inspection using the checklist above, verify the equipment's maintenance and recall history, and put a proven Mac to work in your operation. Whether you're reviewing auction options or working with a dealer, a satisfied owner starts with informed purchasing-and the 2007 Mac end dump has nearly two decades of field-proven performance behind it.