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4-cylinder 2.22L naturally aspirated diesel engine rated at 18.7–20.6 kW (1500 RPM) for 20–22 kVA generator sets.
Verified Prior to Quotation. Fitment and configuration are cross-checked against your equipment serial number.
Technical Overview
The Perkins 404D-22G is one of the world’s most widely deployed 4-cylinder naturally aspirated generator drive engines. Favored by OEMs globally for smooth running characteristics, mechanical simplicity, and universal parts availability.
The Perkins 404 range of electric power (EP) engines is the largest, most refined member of the 400 Series. The 4 cylinder, 2.2 litre 404 offers improvements such as reduced noise, vibration and harshness (NVH). Offering the same customer benefits as the wider 400 family such as reliability, cold-start capability, low operating costs, excellent fuel economy and compact, clever design the 404 makes a smart choice for customers in the generator set market across unregulated and UN ECE R96 Stage IIIA constant speed and U.S. EPA Stationary Emergency Engine territories.
Reliability, superb fuel economy, ease of installation and trusted components all combine to keep your cost of ownership to a minimum. Cost-saving aftertreatment options are also available.
The 404 range of engines give 20-40 kVA generator output, along with the extra refinement and noise reduction that 4 cylinder engines provide. Its power density, durability, fuel efficiency and quiet operation set it apart from similar sized competitors' engines. The 404 range's quiet operation makes it an excellent option where noise is a concern, particularly if you're operating in urban areas.
The Perkins 404D-22G diesel engine is engineered with rigorous global quality standards. Featuring robust construction, precision-machined key components and strict factory testing, it delivers outstanding reliability and consistent power output under continuous and standby load. Optimized for low vibration, easy cold start and long service intervals, this unit ensures stable, durable operation across diverse working environments. Backed by Perkins’ worldwide quality control system, it offers trusted performance and low total operation cost for generator applications.
Supply Assurance
We verify fitment by engine nameplate and serial number, with pre-shipment photos of original packaging.
Direct dispatch from our Chongqing hub for industrial fleets, power plants, and service centers.
Unit price, completeness, export crating, and lead time are confirmed before invoicing.
Technical Data
Reference parameters for engineering selection; exact arrangement details are confirmed prior to shipment. Manufacturer names and part numbers are used for identification reference only.
| Additional Parameters | |
|---|---|
| Model / Code | 404D-22G |
| Brand | Perkins |
| Rated Speed | 1500/1800 rpm |
| Dimensions (L × W × H) | 948 mm × 498 mm × 841 mm |
| Unit Weight | 242 kg |
| Bore × Stroke | 84.0 × 100.0 mm |
| Aspiration | Naturally Aspirated (NA) |
| Fuel Consumption (100% Prime) | 5.3 L/h |
| Lube Oil / Coolant Capacity | 10.6 L / 7.0 L |
| Overall Dimensions (L × W × H) | 915 × 477 × 840 mm |
| Dry Weight | 218 kg |
| Compatible Models | FG Wilson P22-6, Cat DE22E3 (Base Platform), Olympian GEP22-4, 20–22 kVA Generator Sets |
Engineering Advantage
Power rating and duty cycle are matched to your exact application — from continuous prime load to heavy intermittent duty.
Equipment compatibility is verified before quotation: flywheel housing, cooling package, and PTO configuration are aligned with your machinery.
Site conditions are factored into selection: ambient temperature, altitude derating, and fuel quality requirements.
Scope of supply is locked in the commercial quotation and verified prior to dispatch.
Engine serial number, factory test records, and export documentation are provided for full traceability.
Applications
Engineered for demanding industrial duty cycles. Application rating, mounting arrangement, and cooling configuration are confirmed prior to shipment.
Logistics & Packaging
Quantity, export packaging, gross weight, and dispatch lead time are confirmed in your formal quotation.
Before You Order
Please specify your required power output (kW/kVA), operating duty (Prime or Standby), ambient conditions (altitude and temperature), voltage/frequency, and destination country.
Yes. Cooling packages, flywheel housings, control panels, canopies, and ATS switchgear are confirmed to match your application prior to quotation.
Request a Quotation
Request Configuration & Price — share your requirements below and our engineers will verify fitment and stock availability.
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Have detailed specifications (kW/kVA, voltage, duty cycle, or nameplate photo)? Use the full engineering RFQ form →