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The CA-3504-1MAH produces 3500 PSI at 3.5 GPM — 12,250 cleaning units — from a 389cc Honda GX390 OHV engine paired with an AR crankshaft pump on Mi-T-M's aluminum frame. At 125 lbs it is substantially lighter than equivalent steel-frame units at this output level, which typically weigh 140–160 lbs. The step from the CA-3003 series (9,000 CU) to the CA-3504 (12,250 CU) is a 36% increase in cleaning power — the difference between washing moderately fouled equipment surfaces and removing heavy mud, caked road film, and grease from the same surfaces in the same time. ETL listed for US commercial use.
The CA-3504 frame is offered in three standard engine variants — Honda GX390 (1MAH), Kohler CH440 (1MAK), and Mi-T-M OHV (1MAM) — all producing the same 3500 PSI / 3.5 GPM from the same 125-lb aluminum frame. The Honda GX390 is the choice for buyers with Honda dealer relationships or who operate in regions with strong Honda service network coverage. A separate 4.0 GPM high-flow variant (1MGH) is also available on the CA-3504 frame with a different pump.
Fleet operators upgrading from the CA-3003 use the CA-3504-1MAH where 9,000 CU is insufficient for their heaviest cleaning loads — tanker truck washing, agricultural equipment with caked mud and silage, and concrete form cleaning. Construction contractors apply the 12,250 CU output to equipment preparation between job sites. Property restoration companies use it for building facade cleaning before coating. Industrial facilities apply it to production equipment washdown involving process residues that lighter units cannot clear in one pass. Municipal vehicle yards use it for heavy fleet cleaning where throughput per shift matters.
Rated at 3.5 GPM at 3500 PSI (12,250 cleaning units) at rated flow. Includes quick-connect nozzles in 0°, 15°, and 25° patterns; 50-ft × 3/8-in non-marking high-pressure hose; 48-in lance with insulated trigger gun. Cold water only. 49-state engine — not for sale in California.
| PSI | 3500 PSI at rated flow |
| GPM | 3.5 GPM |
| Cleaning Units | 12,250 CU (PSI × GPM) |
| Engine | 389cc Honda GX390 OHV |
| Pump Type | AR Crankshaft |
| Unloader | Mi-T-M Adjustable Pressure |
| Hose | 50 ft × 3/8 in non-marking |
| Lance | 48 in |
| Nozzles Included | 0°, 15°, 25° quick-connect |
| ETL Listed | Yes |
| Net Weight | 125 lbs |
| Dimensions (L × W × H) | 42.5 × 23.5 × 24.5 in |
| Hot/Cold | Cold water only |
| California Sale | Not for sale in CA (49-state engine) |
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