RKV35G40HF24VR3 3.5 GPM 4000 PSI Triplex Pump | VR3

RKV35G40HF24VR3 by Annovi Reverberi — RK Series High-Pressure Triplex Plunger Pump with Gymatic VR3 Unloader | 3.5 GPM | 4,000 PSI | Bronze Connecting Rods | 1″ Hollow Keyway Shaft | SAE J609A Gas and Diesel Engine Drive | No Chemical Injector

The RKV35G40HF24VR3 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 the Gymatic VR3 bypass unloader and straight high-pressure water delivery. Rated at 3.5 GPM and 4,000 PSI at 3,400 RPM, the RKV35G40HF24VR3 delivers 14,000 cleaning units — combining 3.5 GPM focused output with 4,000 PSI maximum penetrating impact that handles heavy soil, oil, mud, and road film efficiently in fewer passes — 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 RKV35G40HF24VR3 is a focused high-pressure platform — 4,000 PSI maximum operating pressure delivers more penetrating impact per cleaning unit than lower-pressure alternatives at equivalent flow rates, making it particularly effective for removing compacted contamination, industrial buildup, and heavy organic residue from hard surfaces and equipment. No chemical injector — chemical delivery managed externally through a dedicated downstream system.

Built by Annovi Reverberi in Modena, Italy — with US-based operations, a domestic parts distribution network, and dedicated AR North America technical support — the RKV35G40HF24VR3 arrives as a complete, factory-tested assembly. Pre-filled with AR break-in oil, equipped with the factory-matched Gymatic VR3 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 RKV35G40HF24VR3 is a long-term investment capable of a decade of productive commercial service life.

Factory-Matched and Approved — The RKV35G40HF24VR3 Complete Assembly Advantage

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

Every RKV35G40HF24VR3 ships as a factory-matched, factory-approved, and factory-installed complete pump and unloader assembly — the Gymatic VR3 unloader selected, calibrated, and installed by Annovi Reverberi specifically for this pump’s 3.5 GPM / 4,000 PSI operating point:

• Factory-matched for 4,000 PSI — the VR3 unloader on the RKV35G40HF24VR3 is factory-calibrated for this pump’s maximum operating pressure. Bypass response, pressure regulation range, and adjustment characteristics are factory-set for the 4,000 PSI duty point — not carried over from a lower-pressure configuration.
• Factory-approved configuration — the complete RKV35G40HF24VR3 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 aftermarket or lower-rated unloader components at 4,000 PSI operating pressure risks both warranty coverage and dangerous system behavior.
• Factory-installed and tested — every RKV35G40HF24VR3 exits the AR manufacturing facility with the VR3 unloader mounted, calibrated, and load-tested at 50%, 100%, and 150% of rated output before shipment. Verified for flow, pressure, and leak-free operation before the pump leaves the factory.
• Eliminates component mismatch returns — using an incorrectly rated unloader on a 4,000 PSI pump is among the most consequential specification errors in commercial wash system builds. The factory-matched RKV35G40HF24VR3 assembly eliminates this failure mode 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 RKV35G40HF24VR3 arrives engineered, assembled, and ready. No additional component sourcing, no assembly variables, no first-run surprises at 4,000 PSI.

Decoding the RKV35G40HF24VR3 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 — Performance rating: 3.5 GPM flow rate
• 40 — Maximum pressure: 4,000 PSI — 3.5 × 4,000 = 14,000 cleaning units
• H — Pump variant designation: specific pump head or construction variant per AR model code. Verify exact H designation with AR North America for this model.
• 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)
• VR3 — Unloader system: Gymatic VR35 (VR3 = Gymatic VR35 per AR RKV/RRV/XMV series convention) — rated to 4,000 PSI and 5 GPM. At 4,000 PSI the VR3/VR35 operates at its rated ceiling. Verify this pairing with AR North America before specifying for your application.
• No trailing I suffix — model terminates at VR3, confirming straight 4,000 PSI water output without a factory-installed downstream chemical injector

Key Specifications

RKV35G40HF24VR3 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 Variant: H designation — verify specific construction detail with AR North America
• Crankshaft Bore: 1″ hollow keyway — direct engagement with gas or diesel engine 1″ output shaft
• Crankcase: Reinforced — RK Series construction for continuous commercial duty
• 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 — pre-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 for continuous bearing and journal lubrication
• Flange: F24 — SAE J609A direct-drive flange, 1″ shaft, gas and diesel engine compatible (AR part AR41866)
• Unloader System: Gymatic VR3 (Gymatic VR35 per RKV series convention) — brass body, adjustable bypass regulation, rated to 4,000 PSI and 5 GPM; factory-matched and factory-installed
• Chemical Injector: Not included — no factory-installed downstream injector
• 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 RKV35G40HF24VR3 Assembly Ready for Installation

• Factory-matched Gymatic VR3 unloader — selected, calibrated, and installed by AR North America for the RKV35G40HF24VR3’s 3.5 GPM / 4,000 PSI operating point; no downstream injector port on this variant
• 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 premium seals — factory-installed for reliable performance at 4,000 PSI from first startup
• 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 RKV35G40HF24VR3 including oil change intervals, water supply requirements, and winterization protocol
• Parts schematic — exploded-view diagram with AR part numbers for every serviceable RKV35G40HF24VR3 component
• Factory test certification — every RKV35G40HF24VR3 load-tested at 50%, 100%, and 150% of rated output before leaving the AR manufacturing facility

4,000 PSI — Maximum Pressure Output. Focused Impact Cleaning.

14,000 Cleaning Units Through Maximum Pressure Rather Than Maximum Flow.

The RKV35G40HF24VR3‘s 4,000 PSI operating point delivers distinct cleaning advantages for applications where penetrating impact force is the primary requirement:

• Maximum impact at the nozzle — 4,000 PSI operating pressure produces the highest impact force available in the standard RK Series commercial pump lineup, making the RKV35G40HF24VR3 particularly effective for removing compacted mud, heavy industrial residue, oil film buildup, and surface contamination that resists lower-pressure alternatives
• 14,000 cleaning units through pressure focus — the RKV35G40HF24VR3 achieves 14,000 CU through 3.5 GPM at 4,000 PSI — concentrating cleaning energy for maximum penetrating power at the nozzle. For applications where impact force rather than coverage volume is the primary factor, the high-pressure RKV35G40HF24VR3 platform is the correct specification.
• Compatible with high-pressure 4,000 PSI accessories — ensure all hoses, spray guns, quick couplers, wand fittings, and downstream accessories are rated above 4,000 PSI with appropriate safety margin when operating the RKV35G40HF24VR3 at maximum pressure
• Smooth triplex low-pulsation output — the RKV35G40HF24VR3’s triplex plunger design delivers consistent 4,000 PSI impact at the tip with reduced pulsation, improving cleaning consistency and reducing operator fatigue on extended high-pressure applications

The Gymatic VR3 Unloader — Pressure Regulation at 4,000 PSI

Factory-Matched for Maximum Operating Pressure. Set It. Lock It. Clean Water Output.

The Gymatic VR3 unloader on the RKV35G40HF24VR3 is factory-matched and factory-installed specifically for this pump’s 4,000 PSI operating point:

• Factory-calibrated for 4,000 PSI operation — the VR3 unloader on the RKV35G40HF24VR3 is factory-set and calibrated for this pump’s maximum operating pressure. Pressure regulation response, bypass flow management, and adjustment range are configured for the 4,000 PSI duty point by AR North America before the pump ships.
• Adjustable then tamper-resistant — operating pressure set on-site and locked before production, maintained consistently across every operator and every job cycle without re-adjustment or drift. Easy external adjustment allows crews to set pressure for delicate surfaces, aggressive degreasing, or general washdown without changing hardware.
• 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 and reducing pressure spikes during idle intervals on production wash jobs. Minimize extended trigger-off idle time to prevent heat buildup in the bypass circuit.
• No factory-installed downstream injector — the RKV35G40HF24VR3 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 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. Stainless Valves. Front-Access Service.

• Solid ceramic plungers provide superior resistance to heat and abrasion on the RKV35G40HF24VR3, protecting seals and extending maintenance intervals in high-temperature, maximum-pressure commercial environments. Individual replacement when service limits are reached.
• Bronze connecting rods deliver exceptional strength and fatigue resistance under continuous-duty 4,000 PSI loads on the RKV35G40HF24VR3, supporting long hours of operation in commercial wash environments
• Precision-machined brass manifold maintains accurate sealing surfaces and consistent internal flow paths on the RKV35G40HF24VR3, ensuring stable 4,000 PSI performance over the pump’s service life
• Stainless steel check valves maintain tight sealing at 4,000 PSI, helping the RKV35G40HF24VR3 hold its performance curve across years of high-pressure cycling
• Triplex three-plunger design reduces pulsation and delivers consistent discharge pressure across the full spray pattern — improving cleaning efficiency and operator control at 4,000 PSI

Front-Access Serviceability and Maintenance

Protecting the RKV35G40HF24VR3 Investment Through Planned Maintenance

• Front-access piston packings and valve assemblies — service technicians can access seals, valves, and plungers on the RKV35G40HF24VR3 with standard tools from the front of the pump without full crankcase disassembly, supporting efficient scheduled maintenance on commercial wash equipment
• Oil sight glass and vented dipstick — daily oil level confirmation and simplified oil change procedures on the RKV35G40HF24VR3 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 are especially critical for bearing and crankshaft integrity at 4,000 PSI maximum operating pressure.
• Inlet supply must exceed 3.5 GPM — provide consistent inlet flow above the RKV35G40HF24VR3’s demand. Inlet starvation-induced cavitation causes accelerated wear at this pump’s elevated operating pressure.
• All accessories must be rated above 4,000 PSI — verify hoses, guns, quick couplers, and fittings are rated above the RKV35G40HF24VR3’s maximum operating pressure with appropriate safety margin before operation
• Winterization is mandatory — protect the RKV35G40HF24VR3 with RV-grade environmentally safe antifreeze for storage and transport in cold conditions to prevent cracked manifolds and destroyed seals

Typical Applications

Where the RKV35G40HF24VR3 Delivers Best Results

• Fleet cleaning requiring maximum impact — bus depots, trucking fleets, and transport companies where 4,000 PSI focused cleaning force handles the heaviest road film, industrial soil, and grease buildup on large commercial vehicles
• Industrial wash systems — heavy machinery, factory floors, equipment bays, and process areas where maximum impact pressure removes compacted oil, grease, and industrial debris that resists lower-pressure alternatives
• Agricultural washdown — tractors, combines, sprayers, and farm implements where 4,000 PSI penetrating output handles compacted mud, manure, and chemical residue on large agricultural equipment
• Marine services — boats, docks, piers, and portside facilities where 4,000 PSI high-pressure cleaning delivers effective results in demanding corrosive marine environments on the RKV35G40HF24VR3’s corrosion-resistant brass manifold construction
• Construction equipment — bulldozers, excavators, skid steers, and concrete tools where maximum impact force handles heavily contaminated surfaces between jobs
• Mobile contractors requiring maximum pressure — trailer- or truck-mounted rigs serving commercial, municipal, and industrial clients where 4,000 PSI focused output enables effective cleaning on the most challenging surfaces

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 RKV35G40HF24VR3 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 RKV35G40HF24VR3 with the factory-installed components and following published installation and maintenance requirements. Every internal wear component — solid ceramic plungers, bronze connecting rods, precision brass manifold seals and o-rings, stainless check valve seats and springs, Gymatic VR3 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 RKV35G40HF24VR3 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 Maximum Pressure. 3.5 GPM. Factory-Matched VR3. No Injector.

Italian Engineering. Maximum Impact Platform. Factory-Approved Assembly. US Warranty Coverage.

For contractors, fleet operators, industrial maintenance teams, agricultural operations, and marine facility professionals who need 4,000 PSI maximum operating pressure at 3.5 GPM — in a factory-matched, factory-approved, and factory-tested complete pump and unloader assembly that eliminates component mismatch risk at the highest pressure point in the standard RK Series commercial lineup, maintains full warranty coverage from day one, and delivers a completely rebuildable platform from one of the global pressure pump industry’s most trusted manufacturers — the RKV35G40HF24VR3 is the maximum-pressure solution in the RK Series commercial pump family. Fourteen thousand cleaning units. Direct drive. One-inch keyway shaft. Factory-matched VR3 bypass. 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.