CA-4004-1MAH Gas Pressure Washer — CA Aluminum Series 4000 PSI with Honda GX390
The CA-4004-1MAH produces 4000 PSI at 3.5 GPM — 14,000 cleaning units — from a 389cc Honda GX390 OHV engine paired with an AR crankshaft pump on Mi-T-M's 125-lb aluminum frame. The CA-4004 is the highest-output standard configuration in the CA Aluminum Series, matching the JP-4004-3MHB's cleaning output but on a lighter aluminum chassis. At 14,000 CU it handles applications that the CA-3504 (12,250 CU) cannot complete in the same time: stripping loose coatings, removing dense industrial fouling, and high-throughput fleet washing. ETL listed for US commercial use.
CA-4004-1MAH Maximum Output and Weight Comparison
The CA-4004 frame is offered in four engine variants — Honda GX390 (1MAH), Kohler CH440 (1MAK), Mi-T-M OHV (1MAM), and Vanguard (1MAV) — all producing 4000 PSI / 3.5 GPM from the same 125-lb aluminum frame. A separate high-flow series (1MCH, 1MCM) offers 4.0 GPM from the same frame with a CAT pump. Compared to the JP-4004-3MHB steel-frame unit at the same 14,000 CU output, the CA-4004-1MAH weighs approximately 17 lbs less.
4000 PSI at 3.5 GPM (14,000 CU) — highest standard cleaning output in the CA Aluminum Series; handles coating stripping and dense industrial fouling
389cc Honda GX390 OHV engine — Honda commercial engine for sustained 4000 PSI operation; global service network
AR crankshaft pump, forged brass manifold, thermal relief valve — AR rated for sustained high-pressure commercial use; brass handles mineral deposits; thermal valve protects pump seals
125-lb corrosion-resistant aluminum frame, 13-in flat-free tires — lighter than steel-frame equivalents at the same CU output; rust-resistant for outdoor storage
ETL listed, vibration isolation plate — ETL certification accepted for commercial procurement; vibration dampening extends pump seal life
50-ft × 3/8-in hose, 48-in lance, CX-0098 External Bypass available — complete cleaning kit; bypass must be ordered with unit
CA-4004-1MAH Applications and Environments
Industrial cleaning contractors use the CA-4004-1MAH at 14,000 CU for applications where 12,250 CU units require additional passes — removing thick oil residue, cleaning heavily fouled industrial equipment, and washing concrete surfaces with embedded contaminants. Paint preparation contractors use the 4000 PSI to strip loose and failing coatings from masonry and concrete before resurfacing. Municipal and transit fleet operations use it for high-throughput vehicle washing where output per shift is constrained by equipment capacity. Construction firms apply it to heavy equipment cleaning and concrete form stripping. The aluminum frame's portability keeps it viable for solo mobile operations despite the high output level.
CA-4004-1MAH 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"
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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.
How does the CA-4004-1MAH compare to the JP-4004-3MHB at the same 14,000 CU output?
Both produce 4000 PSI / 3.5 GPM (14,000 CU) with a Honda GX390 engine. The CA-4004-1MAH uses a corrosion-resistant aluminum frame and weighs 125 lbs. The JP-4004-3MHB uses a powder-coated steel frame and weighs 142 lbs — 17 lbs more. Choose the CA-4004-1MAH if portability and aluminum's rust resistance matter; choose the JP-4004-3MHB if you prefer the steel frame's impact resistance.
What engine variants are available on the CA-4004 aluminum frame?
The CA-4004 standard configuration (3.5 GPM, AR pump) is offered with four engines: Honda GX390 (1MAH), Kohler CH440 (1MAK), Mi-T-M OHV (1MAM), and Vanguard OHV (1MAV). A high-flow configuration (4.0 GPM, CAT pump) is offered as CA-4004-1MCH (Honda) and CA-4004-1MCM (Mi-T-M OHV). All standard variants weigh 125 lbs; the CAT pump variants weigh 128 lbs.
What is the cleaning unit output of the CA-4004-1MAH versus the CA-3504-1MAH?
The CA-4004-1MAH produces 4000 × 3.5 = 14,000 CU. The CA-3504-1MAH produces 3500 × 3.5 = 12,250 CU. The CA-4004 delivers 14% more cleaning power at the same GPM. Both weigh 125 lbs from the same aluminum frame. Choose the CA-4004 for applications requiring coating stripping or dense industrial cleaning where 3500 PSI is insufficient.
Is the CA-4004-1MAH available for sale in California?
No. The Honda GX390 on the CA-4004-1MAH is a 49-state engine that does not meet California CARB small engine emissions standards. It cannot be sold or registered in California.
What bypass protection is available for the CA-4004-1MAH?
The CX-0098 External Bypass System is available and must be ordered with the unit. At sustained 4000 PSI operation, the AR pump generates significant heat when the trigger is held closed. The CX-0098 allows additional water flow through the pump during those idle periods, protecting pump valves and seals from thermal damage.
What does ETL listing mean on the CA-4004-1MAH?
ETL listing from Intertek confirms the CA-4004-1MAH has been independently tested and certified to applicable US safety standards. It is accepted by local inspection authorities and is equivalent in standing to UL listing for commercial equipment purchases and facility approvals.
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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