Description
Heavy storm runoff fills construction trenches with mud and 1-inch gravel before backfill operations begin. The Honda 2 Inch Trash Pump clears site water at 185 GPM with a maximum head rating of 89 feet. Powered by a commercial Honda GX160 engine, it processes 0.81-inch solids. The roll cage takes abuse, but pump cover knobs break if hit by excavator buckets.
Honda engineers this pump housing from die-cast aluminum for impact durability and reduced transport weight. The wet end features a conical cast-iron impeller matched to a replaceable cast-iron volute liner that takes the brunt of abrasive sand erosion. A silicon carbide mechanical seal resists dry-run friction during interrupted prime. Four quick-release threaded wing bolts let operators remove the front cover without special hand tools when solid rocks wedge in the suction eye.
Field Hardware Performance Matrix
Rough excavation dewatering demands fast prime retention and heavy internal components that survive gravel impacts. This self-priming trash pump combines Honda commercial engine reliability with an accessible front cleanout housing.
- Honda GX160 4.8 HP engine delivers consistent commercial power with an integrated low-oil sensor shutdown.
- 2-inch NPT suction and discharge ports accept standard cam-action contractor hose couplings.
- Conical cast-iron impeller drives dirty water and passes spherical rock solids up to 0.81 inches.
- Heavy-duty silicon carbide mechanical shaft seal prevents abrasive water from leaking along the crankshaft.
- Full perimeter 1-inch tubular steel roll frame shields mechanical components against severe jobsite impacts.
- Tool-free front access cover detaches in seconds via four hand knobs for fast clog removal.
- Built-in rubber check valve maintains casing prime to eliminate re-priming delays between pumping cycles.
Dyno Load Realities Heat Data
Dyno bench testing with 87-octane fuel shows the GX160 burning 0.37 GPH at a governed 3600 RPM under load. Pumping against a 30-foot dynamic head produces 140 GPM while engine crankcase oil stabilizes at 216°F in 85°F ambient shop air. Aluminum casing temperature holds at 96°F during continuous high-flow water passage. Exhaust sound registers 78 dBA at 23 feet distance under wide-open throttle. Prime time takes 50 seconds at 15 feet of vertical suction lift through smooth-bore suction hose.
Field Service Application Limits
Transporting this 104-pound unit requires two crew members or an aftermarket cart across rough grading. Do not use this pump for chemical transfer, gasoline pumping, or sanitary waste with stringy cloth. Caustic fertilizers dissolve the internal aluminum volute and degrade the Buna-N check valve flapper within hours.
- Remove the front volute cover after every gravel job to wash out packed sand and loose stones.
- Inspect the engine oil level prior to each work shift and drain crankcase oil every 100 hours.
- Pull the lower drain plug before sub-freezing storage to prevent trapped water from cracking the aluminum casing.
Commercial Warranty Package Inventory
Honda backs the complete WT20XK3A trash pump unit with a 3-Year commercial warranty covering both the pump wet end and the engine. Inside the box sits the pump unit, a heavy-gauge steel suction strainer, two 2-inch pipe couplings with rubber gaskets, and a complete engine spark plug wrench.
