Model 658 Combination
8-12 months for custom-configured units. Check our inventory for units available for immediate delivery.
Mid-size combination sewer cleaner for departments that need combo truck capability on a Class 7 chassis. Lighter GVW opens up more roads and reduces bridge restrictions while still delivering effective jetting and vacuum performance for routine sewer maintenance.
Class 7 chassis, lower GVW than full-size units
6-yard debris body
60 GPM water pump at 2,000 PSI
Telescoping vacuum boom
Fewer road and bridge restrictions
Hydraulic controls, simple operation
Smaller municipalities, utility districts, and contractors that need combination truck capability but can't justify, or can't legally operate, a full-size Class 8 unit. The Class 7 chassis opens up roads with weight restrictions and bridges that full-size trucks can't cross.
Routine sewer maintenance on weight-restricted roads
Lateral and small mainline cleaning (4" to 12" lines)
Stormwater infrastructure maintenance in residential areas
Subdivision and rural road sewer cleaning
Utility district operations with smaller service areas
A real combination truck on a Class 7 chassis, not a stripped-down version of a bigger machine, but a purpose-built unit that delivers effective jetting at 60 GPM and 2,000 PSI with vacuum capability, all under a GVW that eliminates bridge restrictions and weight-limit headaches. Operators with a standard CDL can drive it anywhere in your system.
Departments currently using trailer jetters that have outgrown the limited water capacity, or small combination trucks from other manufacturers that lack the jetting power for real mainline work.
If you're cleaning 18"+ mainlines daily or need 12-yard debris capacity, the Model 900 is the right truck. The 658's 6-yard body means more frequent dump trips on heavy-debris routes.
Model 658 Combination For Sale
2026 Sewer Equipment Mongoose 184-LT Jetter Trailer
Clear laterals and small mains with 18 GPM at 4,000 PSI and 500 ft of 1/2-inch hose • Tow behind a standard pickup, no CDL required for the operator
2026 Sewer Equipment 900 ECO 12-Yard Single Piston Pump
Lower total cost of ownership with single-engine design driving both vacuum and water systems • Stay on the job longer with a 12-yard debris body and full-opening rear door
2026 Sewer Equipment HX-12 27 Hydro Excavator
Cover more digs per setup with a 26 ft DIG DEEP telescoping boom and 12-yard debris tank • Break frozen or greasy spoils faster with hot and cold water at 10 GPM and 3,000 PSI
2026 Sewer Equipment HX-12 27 Hydro Excavator
Daylight deeper utilities without repositioning using the DIG DEEP telescoping boom with 26 ft of reach • Haul more spoils per trip with a 12-yard debris body and greater payload capacity than comparable units
2026 Sewer Equipment Mongoose 184-LT Jetter Trailer
Run lateral and small-main jetting without a CDL or dedicated truck chassis • Get 18 GPM at 4,000 PSI for production cleaning on a one-person setup
2026 Sewer Equipment 800-HPR-ECO IV
Clear gullies, drains, and laterals with one operator using a 440 cfm vacuum and 12.3 gpm at 2,900 psi jetting pump • Work inside parking decks and low-clearance sites at 6.5 ft machine height with the boom arm removed
2026 Sewer Equipment 900 ECO 12-Yard Single Piston Pump
Get production jetting numbers up to 87 GPM at 2,500 PSI from a single-engine platform • Haul a full shift of debris with the 12-yard body and full-opening rear door
2026 Sewer Equipment 900 ECO-12 Yard Triplex Pump
Move 12 yards of debris per dump cycle with a full-size body sized for municipal collection routes • Run continuous-duty jetting up to 87 GPM at 2,500 PSI from a triplex plunger pump
2026 Sewer Equipment HX-12 27 Hydro Excavator
Haul more spoils per trip with a 12-yard debris tank and shorter overall length than comparable units • Reach the dig with a DIG DEEP telescoping boom extending 26 ft without repositioning the truck
2025 Sewer Equipment 800-HPR-ECO IV
Reach catch basins in parking decks and low-clearance areas with a 2,000 mm (6.5 ft) stowed height • Run a full shift on 600 L of sludge capacity plus a 300 L water chamber before dumping
2025 Sewer Equipment HX-12 27 Hydro Excavator
Stay on site longer with a 12-yard debris tank and full-opening rear door for fast unloading • Reach deep service exposures without repositioning thanks to the DIG DEEP 26 ft telescoping boom
2025 Sewer Equipment JAJ-600WH Easement Machine
Reach easements, backyards, and remote manholes that full-size jet/vac trucks cannot access • Clean mainline with 12.3 gpm at 2,900 psi from a piston jetting pump
2025 Sewer Equipment 900 ECO 12-Yard Triplex Pump
Run continuous-duty jetting with a triplex plunger pump built for full-shift operation, not peak-rated short bursts • Protect your pump investment with a design that survives accidental dry-fire events and uses field-serviceable internals
2023 Sewer Equipment Mongoose 184-ULT Jetter Trailer
Clear residential mainlines and laterals with 18 GPM at 4,000 PSI • Haul 600 gallons of debris capacity without a CDL or heavy-duty truck
2018 Sewer Equipment 877 Continuous Rodder
Clear roots and hard blockages in laterals where water pressure alone falls short • Run a two-person crew on routine rodding without tying up a combination truck
2026 Sewer Equipment 900 ECO 12-Yard Triplex Pump
Continuous-duty jetting up to 87 GPM at 2,500 PSI for root cutting and long mainline runs • Extended pump life from ceramic plungers and stainless steel valves
2026 Sewer Equipment HX-12 18 Hydro Excavator
Factory-new build ready for immediate deployment • HX-12 platform engineered for sewer maintenance operations
2025 Sewer Equipment 900 ECO 12-Yard Single Piston Pump
Haul more per shift with a 12-yard debris body and full-opening rear door • Break loose heavy blockages with up to 87 GPM at 2,500 PSI
2025 Sewer Equipment 900 ECO-12 Yard Triplex Pump
Continuous-duty jetting from a triplex plunger pump rated up to 87 GPM at 2,500 PSI • Lower rebuild costs from ceramic plungers, stainless valves, and a self-protecting dry-fire-tolerant design
2025 Sewer Equipment 900 ECO 9-Yard Tandem Axle Combination Sewer Cleaner
Finish more of a typical route between fills with a 9-yard debris body and balanced water capacity • Lower lifetime cost with a single-engine configuration that removes an aux powerplant from the PM schedule
Frequently Asked Questions
Who is the Model 658 Combination best suited for?
Smaller municipalities, utility districts, and contractors that need combination truck capability but can't justify, or can't legally operate, a full-size Class 8 unit. The Class 7 chassis opens up roads with weight restrictions and bridges that full-size trucks can't cross.
What are the main applications for the Model 658 Combination?
The Model 658 Combination is ideal for: Routine sewer maintenance on weight-restricted roads; Lateral and small mainline cleaning (4" to 12" lines); Stormwater infrastructure maintenance in residential areas; Subdivision and rural road sewer cleaning; Utility district operations with smaller service areas.
What sets the Model 658 Combination apart from other combination trucks?
A real combination truck on a Class 7 chassis, not a stripped-down version of a bigger machine, but a purpose-built unit that delivers effective jetting at 60 GPM and 2,000 PSI with vacuum capability, all under a GVW that eliminates bridge restrictions and weight-limit headaches. Operators with a standard CDL can drive it anywhere in your system.
When should I consider a different model instead of the Model 658 Combination?
If you're cleaning 18"+ mainlines daily or need 12-yard debris capacity, the Model 900 is the right truck. The 658's 6-yard body means more frequent dump trips on heavy-debris routes.
What is the typical upgrade path from the Model 658 Combination?
Departments currently using trailer jetters that have outgrown the limited water capacity, or small combination trucks from other manufacturers that lack the jetting power for real mainline work.
Related Sewer Equipment Products
Model 900 ECO Combination
The industry benchmark combination sewer truck with ECO dual-engine fuel system. Independent vacuum and water engines let you jet and vacuum simultaneously without bogging down, while delivering significant fuel savings. 12-yard debris body with full-opening rear door handles the toughest mainline cleaning jobs.
Model 900 Single Engine Combination
The proven Model 900 platform with a single-engine configuration for departments that prefer conventional power trains. Same 12-yard debris body, full-opening rear door, and telescoping vacuum boom as the ECO model at a lower acquisition cost. Simple hydraulic design keeps maintenance straightforward.
Model 800 Combination
Compact combination sewer truck for cities with narrow streets and low-clearance infrastructure. Same mainline-grade jetting and vacuum power as the Model 900 in a shorter wheelbase that fits where full-size combo trucks cannot. Available in single-engine or ECO dual-engine configurations.
Interested in the Model 658 Combination?
Our Sewer Equipment specialists can answer your questions, provide pricing, or schedule a hands-on demo.