RKV35G40HF24C2G 3.5 GPM 4000 PSI Triplex Pump | 3400 RPM

RKV35G40HF24C2G by Annovi Reverberi — RK Series High-Pressure Triplex Plunger Pump with Nickel Plated Pump Head and Gymatic Unloader | 3.5 GPM | 4,000 PSI | Bronze Connecting Rods | Internal Recirculation | 1″ Hollow Keyway Shaft | SAE J609A Gas and Diesel Engine Drive | No Chemical Injector

The RKV35G40HF24C2G by Annovi Reverberi is a high-pressure RK Series triplex ceramic plunger pump engineered for gas and diesel engine-driven commercial and industrial pressure washing systems requiring 3.5 GPM at 4,000 PSI with Gymatic C2G bypass pressure regulation with internal recirculation and straight high-pressure water delivery. Rated at 3.5 GPM and 4,000 PSI at 3,400 RPM, the RKV35G40HF24C2G delivers 14,000 cleaning units — combining 3.5 GPM focused output with 4,000 PSI maximum penetrating impact for cutting through heavy mud, grease, and buildup on vehicles, equipment, and concrete surfaces — through a reinforced crankcase with bronze connecting rods, solid ceramic plungers, precision-machined brass manifold, stainless steel check valves, and an F24 SAE J609A direct-drive flange for close-coupling to gasoline or diesel engines.

The RKV35G40HF24C2G carries the C2G unloader designation — confirming the Gymatic assembly configuration in a non-injector arrangement, with integrated internal recirculation for bypass thermal management. The C2G is AR North America’s factory-approved specification for this 4,000 PSI model. No chemical injector — straight high-pressure water output for operators managing chemical delivery through a dedicated external downstream system or operating on clean water pressure alone.

Built by Annovi Reverberi in Modena, Italy — with US-based operations, a domestic parts distribution network, and dedicated AR North America technical support — the RKV35G40HF24C2G arrives as a complete, factory-tested assembly. Pre-filled with AR break-in oil, equipped with the factory-matched C2G Gymatic unloader, and packaged with mounting bolts and fasteners, a vented dipstick, operator’s manual, and full parts schematic, this pump is ready to install from the moment it arrives. Protected by a 5-year US limited warranty through AR North America and built to be fully rebuilt rather than replaced, the RKV35G40HF24C2G is a long-term investment capable of a decade of productive commercial service life.

Factory-Matched and Approved — The RKV35G40HF24C2G Complete Assembly Advantage

No Mismatches. No Guesswork. No Warranty Risk. Just Install and Run.

Every RKV35G40HF24C2G ships as a factory-matched, factory-approved, and factory-installed complete pump and unloader assembly — the C2G Gymatic unloader selected, calibrated, and installed by Annovi Reverberi specifically for this pump’s 3.5 GPM / 4,000 PSI operating point:

• Factory-matched C2G for 4,000 PSI — the C2G unloader on the RKV35G40HF24C2G is AR North America’s factory-approved specification for this model, calibrated for the 3.5 GPM / 4,000 PSI duty point. Pressure regulation response, internal recirculation routing, and bypass adjustment characteristics are factory-engineered as a complete system — not approximated from a lower-pressure configuration.
• Factory-approved configuration — the complete RKV35G40HF24C2G assembly is validated and approved by AR North America for this duty point. Operating with the factory-installed components maintains full 5-year warranty coverage. Substituting the factory-installed unloader voids warranty protection and may produce unsafe pressure behavior at 4,000 PSI.
• Factory-installed and tested — every RKV35G40HF24C2G exits the AR manufacturing facility with the C2G unloader mounted, calibrated, and load-tested for flow, pressure, and performance before shipment. No field assembly, no calibration guesswork, no first-run uncertainty at maximum operating pressure.
• Eliminates component mismatch returns — the factory-matched RKV35G40HF24C2G assembly eliminates the most common source of performance problems on 4,000 PSI builds — incorrectly specified or separately sourced unloader components — before the pump leaves the box.
• Stress-free installation — mount the pump to the engine, connect system hoses and inlet supply, add fuel, and start. The RKV35G40HF24C2G arrives engineered, assembled, and ready. No additional component sourcing, no assembly variables, no first-run surprises at 4,000 PSI.

Decoding the RKV35G40HF24C2G Model Number

What Every Segment of This AR Pump Designation Tells You

• RKV — Pump series: RK Series triplex plunger pump — AR’s industrial pump platform with reinforced crankcase and front-access piston packing and valve serviceability
• 35G — Flow rate: 3.5 GPM
• 40 — Maximum pressure: 4,000 PSI — 3.5 × 4,000 = 14,000 cleaning units
• H — Pump head specification: Nickel Plated pump head per AR North America model designation. Nickel plating provides enhanced corrosion resistance and surface hardness on the pump head manifold surfaces compared to standard construction.
• F24 — Flange type: SAE J609A direct-drive flange — close coupling to gas or diesel engines with a 1″ I.D. cylindrical shaft (AR part AR41866)
• C2G — Unloader code: Gymatic assembly (C2 = Gymatic, G = Gymatic assembly confirmed designation) — non-injector Gymatic unloader configuration with internal recirculation, adjustable pressure regulation. AR North America’s factory-approved specification for this 4,000 PSI model.
• No trailing I suffix — model terminates at C2G, confirming straight 4,000 PSI water output without a factory-installed downstream chemical injector

The RKV H-Series 4,000 PSI Family — Four Configurations

The RKV 3.5 GPM / 4,000 PSI H-series family offers four factory-matched configurations on the same platform:

• RKV35G40HF24VR3 — Gymatic VR35, no injector. Straight 4,000 PSI water output with VR35 unloader.
• RKV35G40HF24C2G (this model) — Gymatic C2G with internal recirculation, no injector. Straight 4,000 PSI clean water output with thermal-managed bypass. AR-approved specification.
• RKV35G40HF24C2I — C2 Gymatic with integrated chemical injector. Two-mode wash capability. AR-approved specification.
• RKV35G40HF24C1I — Gymatic VR35 (C1) with integrated chemical injector. Two-mode wash capability with VR35 unloader.

Key Specifications

RKV35G40HF24C2G Technical Details at a Glance

• Flow Rate: 3.5 GPM (gallons per minute)
• Maximum Pressure: 4,000 PSI
• Cleaning Units: 14,000 (GPM × PSI)
• Operating Speed: 3,400 RPM
• Pump Type: RK Series triplex ceramic plunger pump — three-piston crankshaft-driven design for smooth, consistent high-pressure output
• Pump Head: Nickel Plated (H designation) — enhanced corrosion resistance and surface hardness on pump head manifold surfaces
• Manifold Material: Precision-machined brass — corrosion-resistant construction for sustained 4,000 PSI cycle integrity
• Plungers: Solid ceramic — exceptional hardness, wear resistance, and thermal shock resistance across extended commercial operating hours
• Connecting Rods: Bronze — premium fatigue strength and wear resistance at 3.5 GPM / 4,000 PSI continuous duty cycles
• Valves: Stainless steel check valves — factory-installed for reliable sealing under continuous high-pressure operation
• Serviceability: Front-access piston packings and valve assemblies; oil sight glass and vented dipstick
• Lubrication: Oil-bath crankcase with pre-filled break-in oil for immediate startup after installation
• Flange: F24 — SAE J609A direct-drive flange, 1″ shaft, gas and diesel engine compatible (AR part AR41866)
• Unloader System: Gymatic C2G — non-injector Gymatic assembly with internal recirculation, adjustable bypass regulation; factory-matched, factory-installed, AR-approved for this 4,000 PSI model
• Chemical Injector: Not included — C2G is a non-injector configuration; chemical delivery managed externally
• Warranty: 5-year limited warranty — US-based coverage through AR North America; maintained with factory-installed components

What’s Included in the Box

A Complete, Factory-Configured RKV35G40HF24C2G Assembly Ready for Installation

• Factory-matched Gymatic C2G unloader with internal recirculation — selected, calibrated, and installed by AR North America for the RKV35G40HF24C2G’s 3.5 GPM / 4,000 PSI operating point; non-injector configuration confirmed
• AR factory break-in oil — crankcase pre-filled to the correct operating level for first startup
• Vented dipstick — fast, accurate crankcase oil level checks with proper crankcase pressure relief
• Clear oil sight glass — at-a-glance visual verification of crankcase lubrication level
• Stainless steel check valves and quality packings — factory-installed for reliable sealing and consistent pressure from first startup on the RKV35G40HF24C2G
• Mounting bolts and fasteners — hardware sized for F24 SAE J609A direct-drive flange installation on compatible 1″ shaft gas or diesel engines
• Operator’s manual — complete installation, startup, operating, and maintenance procedures for the RKV35G40HF24C2G including oil change intervals, water supply requirements, and winterization protocol
• Parts schematic — exploded-view diagram with AR part numbers for every serviceable RKV35G40HF24C2G component
• Factory test certification — every RKV35G40HF24C2G load-tested before leaving the AR manufacturing facility

The Gymatic C2G Unloader — Internal Recirculation at 4,000 PSI

Factory-Approved. Adjustable. Thermally Managed Bypass. Clean Water Output.

The Gymatic C2G unloader on the RKV35G40HF24C2G is AR North America’s factory-approved specification for this 4,000 PSI model — installed with internal recirculation that distinguishes this assembly from standard Gymatic configurations:

• Internal recirculation for thermal management at 4,000 PSI — the C2G’s internal recirculation manages bypass water temperature during intermittent trigger cycling on the RKV35G40HF24C2G, reducing thermal stress on seals, valves, and plungers during idle bypass cycles at maximum operating pressure. This is particularly valuable in applications with frequent trigger stop-start cycling.
• Compact plumbing architecture — the C2G’s internal recirculation eliminates the external bypass return lines required by non-recirculating unloader designs, simplifying system layout on skid frames and trailer-mounted units, reducing potential leak points and installation time
• Adjustable pressure regulation — dial in the ideal PSI for concrete, metal, painted surfaces, or delicate equipment on the RKV35G40HF24C2G without constant nozzle changes. Simple adjustment controls allow technicians to fine-tune pressure in the field across the full operating range.
• Tamper-resistant once set — locked operating pressure maintained consistently across every operator and every job cycle on the RKV35G40HF24C2G without re-adjustment or drift
• Smooth bypass at 3.5 GPM — trigger-off bypass smoothly redirects the full 3.5 GPM flow at 4,000 PSI, protecting the pump from dead-heading during idle intervals. Minimize extended trigger-off idle time.
• No factory-installed downstream injector — the RKV35G40HF24C2G delivers straight 4,000 PSI water output. Chemical delivery managed externally through a dedicated downstream injector or soft wash system when soap application is required.
• Engine load reduction in bypass — reduced back-pressure lowers engine load and fuel consumption during trigger-off idle intervals on full-day wash operations

RK Series Construction — Built for 4,000 PSI Maximum Pressure Commercial Duty

Solid Ceramic. Precision Brass. Bronze Connecting Rods. Accessible Service Points.

• Solid ceramic plungers resist heat and abrasion on the RKV35G40HF24C2G, protecting seals and extending service life even in hot-water or frequent-start applications at 4,000 PSI. Individual replacement when service limits are reached.
• Bronze connecting rods support heavy loads and long run times on the RKV35G40HF24C2G, providing the strength and fatigue resistance needed in commercial wash bays, rental yards, and mobile wash trailers at maximum operating pressure
• Precision-machined brass manifold delivers excellent corrosion resistance while maintaining tight sealing and smooth internal water passages on the RKV35G40HF24C2G across thousands of 4,000 PSI cycles
• Stainless steel check valves ensure clean seating, reliable opening and closing, and consistent pressure on the RKV35G40HF24C2G over years of high-pressure commercial operation
• Triplex three-plunger design produces smooth, consistent output — reducing pulsation stress on hoses, guns, quick couplers, and accessories connected to the RKV35G40HF24C2G so crews can move quickly through wash bays and job sites without system variability

Front-Access Serviceability and Maintenance

Keeping the RKV35G40HF24C2G in the Field, Not the Shop

• Accessible valve caps and seal kits — packing and valve service on the RKV35G40HF24C2G is straightforward with widely available AR replacement parts, enabling planned rebuilds to be completed efficiently and reducing downtime across commercial cleaning operations
• Oil sight glass and vented dipstick — daily oil level checks at a glance and simplified oil changes on the RKV35G40HF24C2G without removing the pump from service
• Oil service on schedule — break-in oil change at 50 hours; full service every 500 hours or 3–5 months. Clean oil and correct level protect bearings and crankcase components at 4,000 PSI maximum operating pressure.
• Inlet supply must exceed 3.5 GPM — provide consistent inlet flow above the RKV35G40HF24C2G’s demand with a properly sized suction hose and 50-mesh minimum inlet strainer. Inlet starvation causes accelerated valve and packing wear at 4,000 PSI.
• All accessories must be rated above 4,000 PSI — verify hoses, guns, quick couplers, and fittings are rated above the RKV35G40HF24C2G’s maximum operating pressure with appropriate safety margin
• Winterization is mandatory — protect the RKV35G40HF24C2G with RV-grade environmentally safe antifreeze for storage and transport in cold conditions to prevent cracked manifolds and destroyed seals

Typical Applications

Where the RKV35G40HF24C2G Delivers Best Results

• Construction and equipment yards — excavators, skid steers, trenchers, and concrete tools where 4,000 PSI maximum impact with the C2G’s thermally managed bypass handles continuous stop-start trigger cycling across long production wash days on the RKV35G40HF24C2G
• Fleet maintenance — trucks, buses, vans, and delivery vehicles where consistent 4,000 PSI performance handles frames, wheel ends, and undercarriage work with chemical applied through a dedicated external downstream system
• Industrial plants — production equipment, material handling gear, and heavily soiled concrete floors in factories and warehouses where the RKV35G40HF24C2G’s front-access serviceability and 4,000 PSI output support maximum production uptime
• Agricultural operations — tractors, sprayers, harvesters, and livestock equipment where the RKV35G40HF24C2G’s clean water output at 4,000 PSI pairs with an external chemical system for fertilizer residue, silage, and organic contamination removal
• Mobile wash contractors — trailer- and truck-mounted pressure washers serving commercial buildings, parking lots, loading docks, and jobsite cleanup where the RKV35G40HF24C2G’s factory-matched C2G assembly, compact F24 direct-drive footprint, and internal recirculation support reliable all-day operation

For operators who prefer a fully configured direct-drive system rather than a bare pump assembly, WSHPWR also carries complete gas and diesel engine pump packages ready to mount on a frame or trailer.

5-Year US Warranty, Full Rebuildability, and Wholesale Pricing

Maximum-Pressure RK Series Performance Backed by Domestic Support

The RKV35G40HF24C2G is protected by Annovi Reverberi’s 5-year limited warranty through AR North America’s US-based warranty and service network. Warranty coverage is maintained by operating the RKV35G40HF24C2G with the factory-installed components and following published installation and maintenance requirements. Every internal wear component — solid ceramic plungers, bronze connecting rods, brass manifold seals and o-rings, stainless check valve seats and springs, Gymatic C2G unloader service parts, piston packing kits, and crankcase bearings — is stocked domestically through AR’s authorized distribution channels. Contractors, rental fleet operators, municipal purchasing departments, resellers, and volume buyers are invited to contact the WSHPWR wholesale team for pricing on the RKV35G40HF24C2G and the complete Annovi Reverberi pump and unloader assembly line. WSHPWR maintains one of the most complete AR North America inventories available through any US web store — with thousands of AR products in stock and a continually expanding catalog.

14,000 Cleaning Units. 4,000 PSI. 3.5 GPM. Factory-Matched C2G. Internal Recirculation. No Injector.

Italian Engineering. Maximum-Pressure Factory-Approved Assembly. Thermally Managed Bypass. US Warranty Coverage.

For contractors, fleet operators, industrial maintenance teams, agricultural operations, and mobile wash professionals who need 3.5 GPM at 4,000 PSI maximum operating pressure — in a factory-matched, factory-approved, and factory-tested complete pump and unloader assembly with Gymatic C2G internal recirculation for thermally managed bypass at maximum pressure, straight water output for external chemical management, RK Series reinforced crankcase with accessible service points and bronze connecting rods, and stress-free installation that eliminates mismatch risk and maintains full warranty coverage — the RKV35G40HF24C2G delivers a properly engineered, completely rebuildable maximum-pressure solution from one of the global pressure pump industry’s most trusted manufacturers. Fourteen thousand cleaning units. Direct drive. One-inch keyway shaft. Factory-matched C2G bypass with internal recirculation. No fixed injector. Front-access service design. Five years of US warranty. A decade of service life.

Volume buyers, resellers, and rental fleet operators can reach the WSHPWR wholesale team directly at wholesale@wshpwr.com to discuss pricing for quantity purchases across the complete Annovi Reverberi lineup — including pumps, unloader assemblies, and service parts.