The Wylie "Express" Combo Trailer is more than a generator trailer; it is more than a light trailer; it is more than a water trailer. It is all three in one efficient package.

Product Information

Owner's Manual

Product Parts

• DOT trailer with surge brakes; constructed of 7" channel iron
• 500 Gallon water tank with 5 GPM, 45 PSI water pump and pressure tank
• 240 Gallon fuel tank for up to 300 hours operation
• Allmand Maxi-lite II 20 kW V-Series generator
• 320" hydraulically raised light tower with 4- 320 watt LED fixtures
• Isuzu 4LE2T, Tier 4 Final, 40.2 hp

The Wylie EXP500 Combo Trailer is the ultimate all-in-one jobsite solution—combining water delivery, power generation, and high-output lighting into a single heavy-duty trailer. Designed for contractors, municipalities, and industrial crews, this system eliminates the need for multiple trailers by delivering everything you need in one efficient, mobile unit.

Built on a rugged DOT-approved trailer frame with surge brakes, the EXP500 is engineered for real-world performance in construction, roadwork, oilfield operations, and remote job sites. Instead of managing separate water wagons, generators, and light towers, this combo system streamlines your workflow, reduces transport costs, and maximizes productivity.

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⚡ 3-in-1 Jobsite Powerhouse

This isn’t just a trailer—it’s a complete mobile infrastructure system:

• 💧 500 Gallon Water Tank – Reliable water supply for dust control, concrete cutting, and site operations
• ⚡ 20kW Generator System – Powers tools, equipment, and jobsite operations with consistent output
• 💡 Hydraulic Light Tower – 26+ ft tower with LED lighting for nighttime and low-light work

👉 One trailer replaces three separate pieces of equipment—saving time, labor, and fuel costs.

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 Built for Extreme Jobsite Conditions

Engineered for durability and long-term performance, the EXP500 Combo Trailer includes:

• Heavy-duty 7” channel iron frame for structural strength
• 240-gallon fuel tank for up to 300 hours of runtime
• Isuzu Tier 4 diesel engine (40+ HP) for reliable power
• 5 GPM water pump (45 PSI) with pressure tank for consistent flow
• DOT-compliant trailer with braking system for safe transport

With a GVWR of 14,000 lbs and industrial-grade components, this unit is built to handle demanding environments without compromise.

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 Ideal Applications

The EXP500 is trusted across multiple industries:

• Road construction & dust suppression
• Concrete cutting & core drilling water supply
• Oilfield & remote site operations
• Emergency response & fire prevention
• Night work requiring high-output lighting

Whether you're running a highway crew or a remote jobsite, this trailer keeps your operation powered, supplied, and illuminated.

• All-in-one solution (water + power + light = huge search demand)
• Targets high-value keywords:
  • combo trailer
  • water wagon with generator
  • construction light tower trailer
  • jobsite generator trailer
• Solves a real contractor pain point: reducing equipment + increasing efficiency

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 Bottom Line

If you’re currently hauling separate equipment—or losing time managing multiple systems—the Wylie EXP500 Combo Trailer is the upgrade that pays for itself. One trailer. Total jobsite control.