Gear Reducers

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B24/B31 Gear Reducer

B24/B31 Gear Reducer

Engine Speed: 3,400 rpm for large frame engines SAE J609-B Flange 2.2:1 Gear Ratio
For Pump Series: Interpump 47, 47HT, 47SS, 66, 66HT, 66SS, E3

Product No.	Description	RPM	Pump Shaft	Max HP
50006000	1" Input Shaft	1650	24mm	24
50007100	1-1/8" Input Shaft	1650	24mm	31

B5 Gear Reducer

B5 Gear Reducer

Engine Speed: 3,400 rpm for small frame engines SAE J609-A Flange 2.2:1 Gear Ratio
For Pump Series: Interpump 44, 60, 63, E2

Product No.	Description	RPM	Pump Shaft	Max HP
5006000	3/4" Input Shaft	1450	24mm	6.5

B18H Gear Reducer

B18H Gear Reducer

Engine Speed: 3,400 rpm for small frame engines SAE J609-A Flange 2.2:1 Gear Ratio
Gear Reducer for Honda Engines / Honda Approved
For Pump Series: Interpump 47, 47HT, 47SS, 66, 66HT, 66SS

Product No.	Description	RPM	Pump Shaft	Max HP
50005000	1" Input Shaft	1450	24mm	18

Interpump RS99 Gear Reducer

Interpump RS99 Gear Reducer

Features of the Interpump RS99 Gear Reducer:

3400 RPM Max. Engine Speed
5.0 hp Max. Engine Output
1450 RPM Pump Speed
2.4:1 Reduction Ratio
3/4” Diameter Keyed Engine Shaft
Eliminates Belts and Pulleys
Right or Left Hand Reversible Mount

Mounts to engines with (4) 5/16” threaded holes on 3.62 diameter bolt circle.

Fits Interpump models: T521, 531, 731, 721, 701, 911, 981, 991.

More Details

Interpump RS500 & RS500H Gear Reducers

Interpump RS500 & RS500H Gear Reducers

Features of Interpump RS500 & RS500H Gear Reducers:

Gear Reducer for Gas or Diesel Engines
3100 RPM Max. Engine Speed
25 HP Max. Engine Output
1425 RPM Pump Speed
1:2.2 Reduction Ration
Pump Series 47, 47HT, 47SS, 66, 66HT and 66SS