"Count On Comet Quality"
| Model | Max GPM | Max PSI | Max RPM | Req EBHP | Crankshaft |
| FW4030S | 4.0 | 3000 | 1450 | 8.2 | 24 mm |
| FWD4030E | 4.0 | 3000 | 3400 | 8.2 | 1 1/8" |
| FWD4035G | 4.0 | 3500 | 3400 | 9.6 | 1" |
| FWS4030S | 4.0 | 3000 | 1750 | 8.2 | 24 mm |
| FW4030SGR* | 4.2 | 3000 | 1450/3400 | 8.6 | 1" |
| FWD4530E | 4.5 | 3000 | 3400 | 9.3 | 1 1/8" |
| FWD4530G | 4.5 | 3500 | 3400 | 10.8 | 1" |
| FWS4530E | 4.6 | 3000 | 1750 | 9.5 | 1 1/8" |
| FWS4530S | 4.6 | 3000 | 1750 | 9.5 | 24 mm |
| HW4040S | 4.0 | 4000 | 1450 | 11.0 | 24 mm |
| HWD4040G | 4.0 | 4000 | 3400 | 11.0 | 24 mm |
| HWS4040S | 4.0 | 4000 | 1750 | 11.0 | 24 mm |
| HW4040SGR^ | 4.2 | 4000 | 1450/3400 | 11.5 | 1" |
| HW4540S | 4.5 | 4000 | 1450 | 12.4 | 24 mm |
| HWD4540G | 4.5 | 4000 | 3400 | 12.4 | 24 mm |
| HW4540SGR^ | 4.8 | 4000 | 1450/3400 | 13.2 | 1" |
| LWD4020S | 4.0 | 2000 | 3400 | 5.5 | 24 mm |
| LWS4020S | 4.0 | 2000 | 1750 | 5.5 | 24 mm |
| SW4040S | 4.0 | 4000 | 1450 | 11.0 | 24 mm |
| SWS4040S | 4.0 | 4000 | 1750 | 11.0 | 24 mm |
| TW4545S | 4.7 | 4500 | 1450 | 14.5 | 24 mm |
| ZWD4030G | 4.0 | 3200 | 3400 | 8.8 | 1" |
| ZWD4030G-K | 4.0 | 3000 | 3400 | 8.2 | 1" |
| ZWD4040G | 4.0 | 4000 | 3400 | 11.0 | 1" |