Cat Pressure Washer Pumps

Cat Pressure Washer Pumps

Replacement Pump Compatibility Charts

 

1. Small Engines (4.6 – 5.7 HP)

Examples: Honda GC160, Subaru EX17, Kohler SH265

  • Shaft Size: 3/4"

  • Drive Type: Direct Drive (All models below)

Pump Model GPM PSI RPM
4DNX25GSI 2.5 3000 3450
4DX29GUIF 2.9 2600 3450
2SFX30GZ 3.0 2300 3450
2SF35GS 3.5 2000 3450
3CP1120G* 3.5 2000 3600
*Gearbox Model

2. Medium Engines (5.2 – 5.6 HP)

Examples: Honda GC190, Honda GX200, Briggs 1150 Series

  • Shaft Size: 3/4"

  • Drive Type: Direct Drive (All models below)

Pump Model GPM PSI RPM
4DNX27GSI 2.7 3000 3450
2SF35GS 3.5 2000 3450
2SFX30GZ 3.0 2500 3450
3CP1120G* 3.5 2200 3600
*Gearbox Model

3. Large Engines (8.5 – 9 HP)

Examples: Honda GX270, Subaru EX27

  • Shaft Size: 1"

  • Drive Type: Direct Drive

Pump Model GPM PSI RPM
4SPX32G1I 3.2 3000 3450
66DX35G1I 3.5 3000 3400
66DX40G1I 4.0 2500 3400
66DX50G1I 5.0 2000 3250

4. Extra Large Engines (11.7 – 13.4 HP)

Examples: Honda GX390, Kohler CH440, Briggs 2100 Series

  • Shaft Size: 1" (Also available in 1-1/8")

  • Drive Type: Direct Drive vs. Gearbox (Noted below)

Pump Model GPM PSI Drive
66DX30G1I 3.0 4000 Direct
66DX35G1I 3.5 4000 Direct
66DX40G1I 4.0 4000 Direct
66DX50G1I 5.0 3000 Direct
5CP3160CSSG1 4.0 3500 Gearbox
5CP3120CSSG1 4.5 3200 Gearbox
5CP5135CSSG1 5.8 2450 Gearbox
5CP5140CSSG1 6.2 2300 Gearbox
7CP6110CSG1 10.0 1450 Gearbox
7CP6170G1 12.0 1200 Gearbox

Note: All 1" gearbox versions are also available in 1-1/8" shaft size (Model suffix G118).