CA-3504-1MAM Gas Pressure Washer — CA Aluminum Series 3500 PSI with Mi-T-M OHV Engine
The CA-3504-1MAM produces 3500 PSI at 3.5 GPM — 12,250 cleaning units — from a 420cc Mi-T-M OHV engine paired with an AR crankshaft pump on Mi-T-M's 125-lb aluminum frame. Of the three engine options on the CA-3504 frame — Honda GX390 (1MAH), Kohler CH440 (1MAK), Mi-T-M OHV (1MAM) — this variant consolidates engine and pump support under Mi-T-M's authorized dealer network. Buyers who already operate Mi-T-M washers at lower output levels can extend the same engine parts inventory to this higher-output unit, simplifying procurement and technician training across a mixed-output fleet.
CA-3504-1MAM Engine and Single-Brand Service Advantage
The 420cc Mi-T-M OHV engine matches the Kohler CH440 in the 420cc displacement class and provides the torque needed to sustain 3500 PSI / 3.5 GPM at the AR pump under continuous operation. With both engine and pump supported by Mi-T-M dealers, warranty claims, parts orders, and scheduled service flow through one contact — a logistical advantage for fleets managing multiple pressure washers across geographically distributed sites.
- 3500 PSI at 3.5 GPM (12,250 CU) — 36% more cleaning power than the CA-3003; handles heavy equipment fouling, industrial surfaces, and fleet washing in fewer passes
- 420cc Mi-T-M OHV engine — engine and pump both under Mi-T-M warranty; parts and service through one dealer contact for entire unit
- AR crankshaft pump, forged brass manifold, thermal relief valve — AR rated for sustained 3500 PSI; brass handles mineral water; thermal valve protects seals during idle
- 125-lb corrosion-resistant aluminum frame, 13-in flat-free tires — lighter than steel-frame alternatives; large tires handle rough job-site terrain
- Vibration isolation plate, 50-ft hose, 48-in lance — vibration dampening extends pump seal life; 48-in lance extends reach for elevated surfaces
- CX-0098 External Bypass System available — must be ordered with unit; protects AR pump from heat build-up during trigger-closed periods
CA-3504-1MAM Applications and Environments
Mi-T-M fleet operators use the CA-3504-1MAM to standardize engine parts across their full pressure washer inventory: one oil specification, one air filter, one service technician, one parts supplier for all units from 2400 PSI to 3500 PSI. Construction companies that already have Mi-T-M dealer accounts use the 12,250 CU output for equipment prep between sites, concrete form cleaning, and building exterior washing. Industrial facilities apply it to production equipment washdown between manufacturing runs. Agricultural producers use it for post-harvest machinery cleaning where sustained high-pressure output clears caked residues that lighter units cannot handle in reasonable time.
CA-3504-1MAM GPM, PSI, and Nozzle Configuration
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.
Specifications
| PSI | 3500 PSI at rated flow |
| GPM | 3.5 GPM |
| Cleaning Units | 12,250 CU (PSI × GPM) |
| Engine | 420cc Mi-T-M 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 |
| 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) |