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The CA-4004-1MCM produces 4000 PSI at 4.0 GPM — 16,000 cleaning units — from a 420cc Mi-T-M OHV engine paired with a CAT crankshaft pump on Mi-T-M's 128-lb aluminum frame. It is the Mi-T-M OHV variant of the high-flow CA-4004 configuration; the Honda GX390 variant is the CA-4004-1MCH. The 1MCM suits buyers who prefer the single-brand service advantage of the Mi-T-M OHV engine — with both engine and pump potentially serviceable through Mi-T-M's authorized dealer network — in the highest-output configuration the CA Aluminum Series offers at 16,000 CU.
At 16,000 CU the CA-4004-1MCM is the highest-output unit in the CA Aluminum Series. The CAT pump supports the 4.0 GPM flow rate with an integrated external bypass system, protecting the pump from heat build-up during trigger-closed idle without requiring a separately ordered accessory. The 420cc Mi-T-M OHV engine provides the displacement needed to sustain 4.0 GPM at 4000 PSI under continuous commercial operation.
Mi-T-M fleet operators who want unified service for both engine and pump at the highest available portable output choose the CA-4004-1MCM. Industrial cleaning operations use the 16,000 CU output for large-footprint equipment pads, production floors, and machinery with accumulated heavy contamination from oils, process chemicals, and particulates. Fleet operations washing high-surface-area vehicles use the 4.0 GPM flow rate to reduce per-vehicle wash time compared to 3.5 GPM configurations. Construction companies apply it to large concrete form arrays and equipment staging areas. Property restoration firms use it for wide masonry cleaning before recoating on commercial building projects.
Rated at 4.0 GPM at 4000 PSI (16,000 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. Integrated external bypass system. Cold water only. 49-state engine — not for sale in California.
| PSI | 4000 PSI at rated flow |
| GPM | 4.0 GPM |
| Cleaning Units | 16,000 CU (PSI × GPM) |
| Engine | 420cc Mi-T-M OHV |
| Pump Type | CAT Crankshaft |
| Unloader | Adjustable Pressure |
| Hose | 50 ft × 3/8 in non-marking |
| Lance | 48 in |
| Nozzles Included | 0°, 15°, 25° quick-connect |
| Net Weight | 128 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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