The 20005 SIMPSON CRX 420cc / 13 HP Engine (Recoil / Electric Start) is a commercial-duty small engine built for pressure washers, generators, and equipment where dependable starting, strong torque, and long run life matter. It features a low-oil shutdown and heavy-duty internal components for tough duty cycles.
Country of Origin: China
Key Features / Specifications
- Part number: 20005
- Engine: CRX420, air-cooled, single-cylinder, OHV
- Displacement: 420cc
- Power: 9.0 kW @ 3600 RPM (commonly marketed as ~13 HP class)
- Torque: 27 Nm @ 2800 RPM
- Starting: Recoil + electric start capable (key-start / e-start available)
- Low-oil shutdown: Standard
- Fuel tank: 2.0 gal
- Oil capacity: 1.16 qt
- Air filter: Dual-element
- PTO shaft rotation: Counterclockwise
- PTO: 1" (25.4 mm) shaft, SAE J609 Flange B
- Dry weight: 67 lb
- Dimensions: 17.25" × 16" × 17.9"
- Warranty: 3-year commercial (as specified for this engine line)
Ideal For:
- Replacing a 420cc engine on pressure washers, generators, and contractor equipment
- Users wanting easy starting (recoil backup plus e-start) and strong worksite durability
- Equipment fleets needing a consistent, serviceable commercial engine platform