RRV4G40D-F24C1I 4.0 GPM 4000 PSI Pump | 3400 RPM F24C1I

RRV4G40D-F24C1I by Annovi Reverberi — RR Series Triplex Plunger Pump with Gymatic VR35 Unloader and Chemical Injector | 4.0 GPM | 4,000 PSI | Bronze Connecting Rods | 1″ Hollow Keyway Shaft | SAE J609A Gas and Diesel Engine Drive

The RRV4G40D-F24C1I by Annovi Reverberi is a professional-grade RR Series triplex ceramic plunger pump engineered for gas and diesel engine-driven commercial and industrial pressure washing systems operating at 4,000 PSI with integrated downstream chemical application capability. Rated at 4.0 GPM and 4,000 PSI at 3,400 RPM, the RRV4G40D-F24C1I delivers 16,000 cleaning units — the maximum output in the AR commercial pump lineup — through a reinforced crankcase with bronze connecting rods, solid ceramic plungers, a forged brass manifold, and an F24 SAE J609A direct-drive flange for close-coupling to gasoline or diesel engines without adapters or intermediate couplings.

The RRV4G40D-F24C1I carries the C1 unloader designation — confirming the Gymatic VR35, AR’s elevated-capacity Gymatic variant rated to 4,000 PSI and 5 GPM, matched precisely to this pump’s maximum operating pressure. The VR35’s direct pressure match at 4,000 PSI delivers the most stable, tightly regulated bypass control available for maximum-pressure RR Series applications — combined with an integrated downstream chemical injector for the complete two-mode professional wash platform.

Built by Annovi Reverberi in Modena, Italy — with US-based operations, a domestic parts distribution network, and dedicated AR North America technical support — the RRV4G40D-F24C1I arrives as a complete, factory-tested assembly. Pre-filled with AR break-in oil, equipped with a Gymatic VR35 unloader and active downstream chemical injector, 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 RRV4G40D-F24C1I is a long-term investment in maximum-output commercial pump performance.

Decoding the RRV4G40D-F24C1I Model Number

What Every Segment of This AR Pump Designation Tells You

The RRV4G40D-F24C1I encodes pump series, output, shaft type, flange interface, unloader variant, and injector configuration directly. Reading each segment confirms engine compatibility, unloader family, and chemical feed configuration:

• RRV — Pump series: RR Series triplex plunger pump — a distinct AR pump platform from the XMV and SXMV Series, engineered for heavy commercial and industrial applications
• 4G40 — Performance rating: 4.0 GPM flow rate at 4,000 PSI maximum operating pressure — 16,000 cleaning units
• D — Shaft version: Direct Gas/Diesel Drive — 1″ hollow keyway crankshaft bore for direct coupling to gasoline or diesel engine 1″ output shafts
• F24 — Flange type: SAE J609A direct-drive flange for RR Series ‘D’ version pumps — close coupling to gas or diesel engines with a 1″ I.D. cylindrical shaft (AR part AR41866)
• C1 — Unloader variant: Gymatic VR35 — AR’s elevated-capacity Gymatic unloader family rated to 4,000 PSI and 5 GPM, matched precisely to the RRV4G40D-F24C1I’s maximum operating pressure point. The C1/VR35 is the correct unloader specification for 4,000 PSI operation, providing direct pressure-matched regulation with no upside variance gap.
• I — Chemical injector: Included — a downstream soap and chemical injector is integrated into the Gymatic VR35 unloader assembly, enabling low-pressure detergent application without a separate injector fitting

RRV4G40D-F24C1I vs RRV4G40HD-F24C2I — Understanding the RR Series 4,000 PSI Variants

Both pumps belong to AR’s RR Series at 4.0 GPM / 4,000 PSI with F24 flange and bronze connecting rods. The key differences:

• RRV4G40D-F24C1I (this model) — Gymatic VR35 (C1) unloader rated to 4,000 PSI, integrated chemical injector. Standard RRV Series crankcase construction with bronze connecting rods. The VR35 provides direct pressure-matched regulation at 4,000 PSI.
• RRV4G40HD-F24C2I — Gymatic (C2) unloader with integrated chemical injector, Heavy Duty (HD) reinforced crankcase specification with bronze connecting rods. The HD crankcase provides additional structural margin for the highest-cycle maximum-pressure production environments.

For applications requiring maximum unloader pressure rating matched to 4,000 PSI, the RRV4G40D-F24C1I’s C1/VR35 specification is the technically correct selection. For applications requiring the additional crankcase structural reinforcement of the HD build, the RRV4G40HD-F24C2I is the appropriate variant.

Key Specifications

RRV4G40D-F24C1I Technical Details at a Glance

• Flow Rate: 4.0 GPM (gallons per minute)
• Maximum Pressure: 4,000 PSI
• Cleaning Units: 16,000 (GPM × PSI)
• Operating Speed: 3,400 RPM
• Pump Type: RR Series triplex ceramic plunger pump — three-piston crankshaft-driven design for smooth, consistent maximum-pressure output
• Crankshaft Bore: 1″ hollow keyway — direct engagement with gas or diesel engine 1″ output shaft
• Manifold Material: Forged brass — dense, pore-free construction for corrosion resistance and sustained 4,000 PSI cycle integrity
• Plungers: Solid ceramic — exceptional hardness, wear resistance, and dimensional stability across extended maximum-pressure commercial operating hours
• Connecting Rods: Bronze — premium fatigue strength and wear resistance at 4,000 PSI / 4.0 GPM continuous duty cycles
• Valves: Stainless steel — precise seating geometry, scale resistance, and reliable performance under continuous 4,000 PSI cycling
• Flange: F24 — SAE J609A direct-drive flange for RR Series ‘D’ version, 1″ shaft, gas and diesel engine compatible (AR part AR41866)
• Unloader System: Gymatic VR35 (C1 code) — brass-body internal bypass unloader with integrated downstream chemical injector, rated to 4,000 PSI and 5 GPM
• Chemical Injector: Included — downstream venturi injector integrated into Gymatic VR35 unloader assembly (“I” suffix confirmed)
• Warranty: 5-year limited warranty — US-based coverage through AR North America with domestic parts and service support

What’s Included in the Box

A Complete, Factory-Configured RRV4G40D-F24C1I Assembly Ready for Installation

Every RRV4G40D-F24C1I ships fully assembled and field-ready:

• Factory-installed Gymatic VR35 unloader (C1) with active chemical injector — pre-mounted with integrated downstream injector ready for detergent supply line connection on the RRV4G40D-F24C1I
• AR factory break-in oil — crankcase pre-filled to the correct operating level for first startup without modification
• Vented dipstick — enables fast, accurate crankcase oil level checks while maintaining proper crankcase pressure relief during operation
• Clear oil sight glass — at-a-glance oil level monitoring without removing the dipstick cap
• Mounting bolts and fasteners — hardware pre-selected and 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 RRV4G40D-F24C1I including oil change intervals, winterization protocol, and chemical injector care
• Parts schematic — exploded-view diagram with AR part numbers for every serviceable RRV4G40D-F24C1I component for field and shop reference
• Factory test certification — every RRV4G40D-F24C1I load-tested at 50%, 100%, and 150% of rated output before leaving the AR manufacturing facility

The Gymatic VR35 at 4,000 PSI — Direct Pressure Match with Integrated Chemical Feed

Rated Precisely at Operating Pressure. Chemical Capable. Maximum Regulation Accuracy.

The Gymatic VR35 unloader (C1) on the RRV4G40D-F24C1I is rated to 4,000 PSI and 5 GPM — matched directly to the pump’s maximum operating pressure point. This direct match provides the most precisely calibrated pressure regulation available in the AR unloader lineup at 4,000 PSI:

• Direct pressure-matched regulation — the VR35’s 4,000 PSI rating aligns with the RRV4G40D-F24C1I’s maximum output, producing the tightest possible pressure regulation response with no upside variance gap to account for
• Adjustable then tamper-resistant — operating pressure set on-site before locking, held consistently across every operator and every job cycle on the RRV4G40D-F24C1I without re-adjustment or drift
• Internal bypass at full 4.0 GPM — trigger-off bypass smoothly redirects the complete 4.0 GPM flow at 4,000 PSI, preventing deadhead pressure spikes that accelerate seal and valve wear during idle intervals
• Integrated downstream chemical injector — the venturi injector built into the VR35 unloader body draws detergent, degreaser, or pre-soak solution from a supply container when the RRV4G40D-F24C1I operator switches to low-pressure application mode. No separate injector hardware required.
• Engine load reduction in bypass — reduced back-pressure in bypass mode lowers engine load and fuel consumption during idle intervals on full-day maximum-pressure wash operations
• Brass body construction — resists corrosion from cleaning chemicals, degreasers, chlorinated water, and sustained heavy-duty field exposure at 4,000 PSI

Bronze Connecting Rods — Premium Internal Construction at Maximum Pressure

Why Connecting Rod Material Matters at 4.0 GPM / 4,000 PSI

The RRV4G40D-F24C1I‘s bronze connecting rods provide premium crankcase performance at the highest commercial duty point in the AR lineup:

• Superior fatigue strength at 4,000 PSI — bronze alloys resist the repeated load cycling of maximum-pressure 4.0 GPM operation more effectively than aluminum, extending connecting rod service life in the most demanding daily commercial duty cycles on the RRV4G40D-F24C1I
• Higher wear resistance at bearing interfaces — bronze’s tribological properties reduce wear at connecting rod bearing surfaces under the elevated load conditions of 4,000 PSI / 4.0 GPM maximum-output continuous operation
• Thermal stability — bronze maintains dimensional stability across the temperature range of maximum-pressure continuous-duty operation, reducing thermal distortion at bearing surfaces during extended production wash sessions
• Long-term rebuild value — as a fully rebuildable platform, the RRV4G40D-F24C1I’s bronze connecting rods reduce the frequency of crankcase component replacement across a decade of maximum-pressure commercial service life

Integrated Chemical Injection — Two-Mode Maximum-Pressure Platform

Pre-Soak, Degrease, and 4,000 PSI Rinse Through the RRV4G40D-F24C1I

The integrated downstream chemical injector on the RRV4G40D-F24C1I delivers full two-mode capability at maximum operating pressure:

• Venturi-driven downstream injection — the VR35-integrated injector draws detergent, degreaser, or pre-soak solution from a supply container when the RRV4G40D-F24C1I operator switches to low-pressure application mode. No chemical pump or powered dosing system required.
• Two-mode workflow at 4,000 PSI / 4.0 GPM — chemical pre-soak breaks down maximum-contamination grease, oil, and embedded grime; full 4,000 PSI / 4.0 GPM rinse removes loosened material at 16,000 cleaning units of output. At this output level, the pre-soak workflow delivers the most dramatic reduction in total job time of any pump in the AR commercial lineup.
• No separate injector hardware required on the RRV4G40D-F24C1I — the complete two-mode system is factory-assembled. One assembly. Two operating modes.
• Injector maintenance — flush the RRV4G40D-F24C1I injector circuit with clean water after every detergent session, preserving long-term venturi function as detailed in the included operator’s manual.

F24 SAE J609A — Direct Drive for Gas and Diesel Engines at Maximum Output

• Gasoline engine compatibility — direct bolt-up to commercial gas engines with a 1″ cylindrical output shaft and SAE J609A bolt pattern in the high-horsepower class required for 4.0 GPM / 4,000 PSI loads on the RRV4G40D-F24C1I. Verify engine horsepower against the pump’s duty point before installation.
• Diesel engine compatibility — equally compatible with standard diesel engines equipped with a 1″ crankshaft and SAE J609A bolt pattern, making the RRV4G40D-F24C1I a natural specification for diesel-powered contractor rigs, agricultural equipment, and municipal service vehicles at 4,000 PSI
• Direct close-coupling — the RRV4G40D-F24C1I mounts face-to-face against the engine with the 1″ hollow keyway crankshaft bore engaging the engine shaft directly, eliminating belt guards, pulleys, and tensioning hardware
• Compact installation envelope — direct coupling reduces skid and trailer frame dimensions for portable contractor rigs at maximum output
• Included mounting hardware — bolts and fasteners sized for the F24 SAE J609A bolt pattern are supplied with the RRV4G40D-F24C1I

Typical Applications

Where the RRV4G40D-F24C1I Delivers Best Results

• Professional pressure washing contractors — two-mode maximum-pressure workflow combining 4,000 PSI / 4.0 GPM rinse with VR35-integrated chemical pre-soak through the RRV4G40D-F24C1I for concrete restoration, building exterior washing, and large commercial property maintenance
• Heavy industrial equipment cleaning — excavators, crushers, mining equipment, and large plant machinery where the RRV4G40D-F24C1I’s maximum-pressure output and integrated chemical capability handle the most challenging contamination
• High-volume fleet and vehicle washing — truck terminals, container depots, and large fleet yards where 16,000 CU output and integrated detergent capability provide fast, thorough two-mode wash cycles
• Agricultural operations — combines, large equipment, feedlot facilities, and barn structures on diesel-powered rigs where maximum output and chemical pre-soak capability are both required
• Municipal and government heavy equipment services — public works heavy equipment and infrastructure cleaning rigs where diesel compatibility and maximum output from the RRV4G40D-F24C1I are both operational requirements
• Concrete and surface restoration — parking structures, loading docks, industrial floors, and large exterior concrete where 4,000 PSI and integrated chemical feed from the RRV4G40D-F24C1I achieve production cleaning results
• Industrial facility maintenance — manufacturing plant surfaces, equipment yards, and loading infrastructure requiring maximum-output cleaning with chemical application through the RRV4G40D-F24C1I

5-Year US Warranty, Full Re-buildability, and Wholesale Pricing

Maximum-Output RR Series Performance Backed by Domestic Support

The RRV4G40D-F24C1I is protected by Annovi Reverberi’s 5-year limited warranty through AR North America’s US-based warranty and service network. Every internal wear component of the RRV4G40D-F24C1I — solid ceramic plungers, bronze connecting rods, brass manifold seals and o-rings, stainless valve seats and springs, Gymatic VR35 unloader service parts, and crankcase bearings — is stocked domestically through AR’s authorized distribution channels.

With consistent maintenance — break-in oil change at 50 hours, scheduled oil changes every 500 hours or 3–5 months, regular valve and seal inspection at the elevated service frequency appropriate for 4,000 PSI maximum-duty cycles, chemical injector circuit flushing with clean water after every detergent session, and proper winterization using RV-grade environmentally safe antifreeze — the RRV4G40D-F24C1I is engineered for 10 or more years of productive maximum-pressure commercial service life. AR North America’s domestic parts depth ensures rebuild kits, plunger sets, and Gymatic VR35 unloader service components for the RRV4G40D-F24C1I are typically available same-week.

Contractors, rental fleet operators, municipal purchasing departments, resellers, and volume buyers are invited to contact wholesale@wshpwr.com for wholesale and special pricing on the RRV4G40D-F24C1I 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.

16,000 Cleaning Units. 4,000 PSI. 4.0 GPM. RR Series. VR35 Precision. Integrated Chemical Feed.

Italian Engineering. C1 VR35 Precision at Maximum Pressure. US Warranty Coverage.

For contractors, industrial operators, fleet managers, and municipal services who need the highest cleaning productivity in the AR commercial lineup — 4.0 GPM and 4,000 PSI through a VR35 unloader precisely rated at the operating pressure, with integrated downstream chemical injection and bronze connecting rod construction on the proven RR Series platform — the RRV4G40D-F24C1I delivers a factory-tested, fully documented, and completely rebuildable assembly from one of the global pressure pump industry’s most trusted manufacturers. Sixteen thousand cleaning units. Direct drive. One-inch keyway shaft. VR35 precision regulation. Integrated injector. 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.