Updated on August 13, 2026
Spare parts for Jenbacher J420 engines
The Jenbacher J420 (Type 4) is one of the most widely used medium-output gas engines in cogeneration. At RS Motor we supply, from our own stock, spare parts for the J420 in all three options —original, OEM and reconditioned components with warranty—, with shipping to more than 60 countries.
We cover the complete engine: cylinder heads, pistons, piston rings, liners, connecting rods, bearings, crankshaft, camshaft, valves and seats, turbochargers, intercoolers, water and oil pumps, gaskets and seals, spark plugs and ignition system, sensors and complete maintenance and overhaul kits. We also work with AVAT, Heinzmann and MOTORTECH system components.
Beyond parts supply, we carry out preventive maintenance, repair and full overhaul of the Jenbacher J420, both on site (in the plant) and at our workshop of more than 1,000 m². We recondition cylinder heads, blocks and main components to original condition, at a lower cost than a new part while preserving engine reliability.
| Manufacturer | Jenbacher (INNIO) |
| Model | J420 — Type 4 |
| Engine type | Gas engine for cogeneration (CHP) |
| Configuration | Depending on version |
| Electrical output | Depending on version (on request) |
| Fuel | Natural gas / biogas |
| Typical application | Cogeneration with natural gas and biogas |
What spare parts do you have for the Jenbacher J420 engine?
We carry a wide catalogue for the Jenbacher J420: cylinder heads, pistons, piston rings, liners, connecting rods, bearings, crankshaft, camshaft, valves and seats, turbochargers, intercoolers, water and oil pumps, gaskets and seals, spark plugs and ignition system, sensors and complete maintenance and overhaul kits.
Are the Jenbacher J420 spare parts original, OEM or reconditioned?
We work with all three options: original parts, OEM parts and reconditioned components with warranty, to match every budget and lead time.
Do you ship Jenbacher J420 spare parts internationally?
Yes. RS Motor supplies more than 60 countries; we ship Jenbacher J420 spare parts worldwide, including Latin America.
Do you offer Jenbacher J420 maintenance and overhaul?
Yes: preventive maintenance, repair and overhaul of the Jenbacher J420, on site and at our specialised workshop.
How do I request a quote for Jenbacher J420 spare parts?
Add the part numbers you need to your quote request, or contact us with the engine model and the list of parts; we’ll prepare an offer with availability and lead time.
Founded in 2008, with a team of more than 20 years’ experience in cogeneration, ISO 9001 and ISO 14001 certifications and service in more than 60 countries. An independent alternative to the official service for MWM, Deutz, CAT, Jenbacher and Guascor engines.
Request a quote for your Jenbacher J420: tell us the part numbers or the list of parts you need and we’ll prepare an offer with availability and delivery time.
Updated on August 13, 2026Spare parts for MWM TBG 632 engines The MWM TBG 632 is a higher-output gas engine ...
Updated on August 13, 2026Spare parts for MWM/Deutz TCG 2032 engines The MWM/Deutz TCG 2032 is a high-output gas engine ...
Updated on August 13, 2026Spare parts for Guascor SFGLD 480 engines The Guascor (Siemens Energy) SFGLD 480 is a higher-output ...
Updated on August 13, 2026Spare parts for MWM TBG 620 engines The MWM TBG 620 is a classic MWM gas ...
