CA-4004-1MAM Gas Pressure Washer — CA Aluminum Series 4000 PSI with Mi-T-M OHV Engine
The CA-4004-1MAM produces 4000 PSI at 3.5 GPM — 14,000 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. It is one of four engine options on the CA-4004 standard frame. The Mi-T-M OHV variant consolidates engine and pump service under Mi-T-M's authorized dealer network — a single contact for all warranty claims, parts, and scheduled maintenance. Buyers managing fleets of Mi-T-M washers benefit from standardizing on this engine across units at multiple output levels. ETL listed for US commercial use.
CA-4004-1MAM Single-Source Service and Output
The 420cc Mi-T-M OHV is Mi-T-M's highest-displacement OHV engine, providing the torque needed for sustained 4000 PSI / 3.5 GPM operation at the AR pump. At 14,000 CU the CA-4004 handles applications where the CA-3504 (12,250 CU) still requires additional passes — dense oil residue on concrete, heavily fouled vehicle undersides, and industrial equipment with process chemical buildup. The 125-lb aluminum frame weighs approximately 17 lbs less than the steel-frame JP-4004 at the same CU output.
4000 PSI at 3.5 GPM (14,000 CU) — maximum standard output in the CA Aluminum Series; handles dense fouling and coating stripping that overtaxes the CA-3504
420cc Mi-T-M OHV engine — Mi-T-M's highest displacement OHV; engine and AR pump both under Mi-T-M dealer warranty for single-source service
AR crankshaft pump, forged brass manifold, thermal relief valve — AR rated for sustained 4000 PSI commercial use; brass handles mineral-rich water; thermal valve prevents heat damage during idle
125-lb corrosion-resistant aluminum frame, 13-in flat-free tires — lighter than steel-frame JP-4004 at the same CU output; rust-resistant outdoor storage
ETL listed, vibration isolation plate — ETL certification for commercial procurement; vibration dampening extends pump seal service intervals
50-ft × 3/8-in hose, 48-in lance, CX-0098 External Bypass available — complete kit; bypass must be ordered with unit
CA-4004-1MAM Applications and Environments
Mi-T-M fleet operators who standardize their entire pressure washer inventory on Mi-T-M engines use the CA-4004-1MAM as their highest-output portable unit: parts, oil, and service all flow through the same dealer contact regardless of which unit needs attention. Industrial cleaning contractors apply the 14,000 CU output to production equipment with accumulated process chemical, oil, and particulate fouling. Fleet maintenance operations use it for heavy commercial vehicle washing where 12,250 CU units leave residue on undercarriages and heavily contaminated surfaces. Construction firms use it for concrete surface preparation, equipment cleaning, and form stripping at the highest output the aluminum chassis offers.
CA-4004-1MAM GPM, PSI, and Nozzle Configuration
Rated at 3.5 GPM at 4000 PSI (14,000 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. Cold water only. 49-state engine — not for sale in California.
"1 Year Unloader, 3 Year Honda Engine, 7 Year Pump"
B2B & Tax-Exempt Purchases
We supply contractors, restoration companies, property managers, schools, government agencies, and other tax-exempt organizations.
How to place a tax-exempt order:
Write to us through our Contact Us page or email info@uscleaningtools.com and attach your valid tax exemption certificate (state resale or exemption certificate).
We verify your certificate and mark your account tax-exempt — usually within one business day.
Place your order and sales tax will not be charged.
For volume pricing or purchase orders, call +1 (978) 295-7538.
Shipping & Returns
Free shipping on most brands for orders over $300, delivered to the lower 48 states. Any brand-specific freight rate is shown at checkout before you pay.
Processing & delivery: in-stock orders are processed within 1–2 business days and typically deliver in 5–7 business days. Tracking is emailed within 24 hours of shipment. Built-to-order and backordered equipment shows its lead time on this page.
Freight deliveries: inspect your equipment on arrival and note any damage on the delivery receipt. Items damaged in transit or defective on arrival are fully covered at no cost to you.
Cancellations: cancel any time before your order ships for a full 100% refund.
30-day returns: return unused equipment in its original packaging within 30 days of delivery. Change-of-mind returns are subject to a restocking fee. To start a return, email info@uscleaningtools.com or call +1 (978) 295-7538.
What is the single-source service advantage of the CA-4004-1MAM?
The CA-4004-1MAM uses a 420cc Mi-T-M OHV engine paired with a Mi-T-M AR pump. Both engine and pump are covered by Mi-T-M's authorized dealer network, so warranty claims, parts sourcing, and service calls all go to one contact. Buyers managing fleets of Mi-T-M washers at different output levels can use the same service relationship for all units.
How does the CA-4004-1MAM compare to the CA-4004-1MAH with the Honda GX390?
Both produce 4000 PSI / 3.5 GPM (14,000 CU) from the same 125-lb aluminum frame with an AR pump. The 1MAM uses a 420cc Mi-T-M OHV (single-brand service); the 1MAH uses a 389cc Honda GX390 (Honda dealer service for engine, Mi-T-M dealer for pump). Choose based on whether you prefer unified Mi-T-M support or Honda's engine service network.
Is the CA-4004-1MAM ETL listed?
Yes. The CA-4004-1MAM carries ETL listing from Intertek, confirming it meets applicable US safety standards. ETL is accepted by local inspection authorities and is equivalent to UL listing for commercial equipment procurement decisions.
Can the CA-4004-1MAM be sold or operated in California?
No. The 420cc Mi-T-M OHV is a 49-state engine that does not comply with California CARB small engine emissions standards. The CA-4004-1MAM cannot be sold or registered in California.
What is the CU output comparison between the CA-4004-1MAM and the CA-3504-1MAM?
The CA-4004-1MAM produces 4000 × 3.5 = 14,000 CU. The CA-3504-1MAM produces 3500 × 3.5 = 12,250 CU. The CA-4004 delivers 14% more cleaning units from the same frame configuration, justified for applications where 3500 PSI still requires multiple passes on dense industrial fouling.
What bypass accessory is available for the CA-4004-1MAM?
The CX-0098 External Bypass System must be ordered with the CA-4004-1MAM. At 4000 PSI, sustained trigger-closed idle builds heat in the AR pump head. The CX-0098 routes additional water flow through the pump during those periods, preventing seal and valve damage.
Frequently Asked Questions
1. What payment methods can I use?
We accept Visa, MasterCard, American Express, Diners Club, Discover, major debit cards, and digital wallets like PayPal, Google Pay, Meta Pay, and Apple Pay.
2. When will my payment be processed?
Your credit/debit card or PayPal account will be charged when you place your order. Secure payment processing protects your information.
3. Will I receive an order confirmation?
Yes, a confirmation email will be sent to the provided email address once the order is placed.
4. How long does it take to process an order?
Orders are processed within 1-2 business days and then prepared for shipment.
5. How long does it take for my order to arrive?
Estimated arrival time (ETA) is 5-7 business days for all orders.
6. Do you offer warranty?
All our products come with a manufacturer warranty of at least 1 year, depending on the brand.
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