What is the Interpump GEARBOX RS500 used for?

The Interpump GEARBOX RS500 is a 1" shaft gearbox accessory designed for WS202 pump integration in high-pressure cleaning and industrial pump applications. It transmits engine power to the pump with a 2.2 transmission ratio, enabling compact power transfer in demanding environments.

What are the specifications of the Interpump GEARBOX RS500?

The RS500 features a 1" engine shaft (25.4 mm), SAE J609-A-B engine flange, 2.2 transmission ratio, and maximum power transmission capacity of 18.5 kW (25 hp). Unloaded weight is 4.2 kg, making it compact for pump mounting and high-pressure cleaning systems.

Where can I buy the Interpump GEARBOX RS500 in Singapore?

3G Electric, an authorised Interpump distributor since 1990, supplies the RS500 gearbox throughout Singapore and Southeast Asia. We handle full logistics, customs clearance, and delivery. Contact us for availability and lead times on this pump accessory.

How do I select the right gearbox for my Interpump WS202 pump?

Verify your pump model matches the WS202 specification and confirm your engine shaft diameter is 1" (25.4 mm) with SAE J609-A-B flange compatibility. The RS500's 2.2 ratio and 18.5 kW capacity suit standard high-pressure cleaning duty. Consult the pump manual for exact mounting torque and oil requirements.

Interpump RS500 Gearbox 1" SAE J609 - Accessories & Installation

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Interpump RS500 Gearbox 1" SAE J609

Name: Interpump RS500 Gearbox 1" SAE J609
Brand: Interpump
SKU: 3G-ITP-00023
Availability: BackOrder

SKU 3G-ITP-00023

Brand

Interpump

Item

RS500 Gearbox 1" SAE J609

Technical Specifications

Interpump

for pumps

47

engine flange

SAE J609-A-B 

engine shaft in

1

engine shaft mm

25.4 

transmission ratio i

2.2

weight without oil kg

4.2

max power transmission hp

25

max power transmission kw

18.5 

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Interpump Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Interpump GEARBOX RS500 is a 1" shaft gearbox accessory designed for WS202 pump integration, featuring a 2.2 transmission ratio and 18.5 kW maximum power transmission capacity. Ideal for high-pressure cleaning and industrial pump applications requiring compact power transfer.

Used in

Common applications for Interpump

Shipyard hull cleaning and surface prep — HT100 and W951 paired with dual-lance guns for dockyard service

Petrochemical heat-exchanger descaling — WS-series stainless pumps for neutral-pH cleaning chemistry

Outdoor HVAC condenser mist cooling — ZP180 pumps on rooftop chiller decks

Textile fibre-finishing — W170 and W270 for mist-jet application across drying lines

Municipal water treatment — W951 motor pumps for high-pressure disinfection chemical injection

Interpump Products

3G Electric supplies Interpump accessories & installation. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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