On a SDMO generator, the brand, absorbed by Kohler and then renamed Rehlko, has reorganized its catalogs. A reference that was valid three years ago may now lead to an empty page or a renamed product. Identifying the correct part requires understanding this transition and knowing where to search based on the age of the machine.
Transition from SDMO to Rehlko: finding a reference missing from the catalogs
The acquisition of SDMO by Kohler, followed by the transition to the Rehlko Power Systems EMEA brand, has led to a complete overhaul of commercial designations. The old SDMO part codes are not systematically included in the new Rehlko catalogs.
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Engine references (filters, injectors, regulators) often remain the same because they depend on the engine manufacturer (Mitsubishi, John Deere, Volvo Penta). However, body parts, soundproof chassis components, and regulation electronics now carry Rehlko codes without a public cross-reference table.
The Rehlko Power Systems EMEA spare parts page allows you to find a manufacturer part starting from the machine’s serial number. This is now the only official channel to confirm compatibility after a brand change. Before ordering elsewhere, we recommend noting the complete serial number (nameplate on the chassis) and entering it on the Rehlko portal to obtain the new designation.
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To find SDMO spare parts when the old reference yields no results, it is often necessary to cross-reference three pieces of information: the exact model of the generator (Perform, Technic, Diesel), the type of engine, and the year of manufacture. Without this data, the risk of receiving an incompatible part increases significantly.
Exploded view and model identification: the method that reduces order errors
Starting from the exploded view of the generator remains the most reliable method for identifying a part unambiguously. Some specialized platforms, like ServiBox, allow you to enter the machine reference or exact model, then display the disassembly diagram with each component clickable. This approach eliminates doubt about the version of the air filter, the diameter of the O-ring, or the type of connector for the AVR regulator.
On a SDMO Perform equipped with a Honda GX engine, the exploded view clearly distinguishes engine parts (supplied by Honda) from generator-specific parts (control panel, circuit breaker, chassis). This distinction is crucial: ordering an “SDMO” oil filter when it is actually a standard Honda reference wastes time and often money.
Information to gather before any search
- The complete serial number of the generator, engraved on the nameplate attached to the chassis or soundproof hood
- The exact reference of the thermal engine (visible on the casing or engine block), which allows ordering consumables directly from the engine manufacturer
- The model and nominal power of the generator (e.g., Perform 3000, Technic 6500 E AVR), as several variants share the same chassis with different alternators
- The year of manufacture or batch number, which determines whether the part is still under the SDMO catalog or the Rehlko catalog
With these elements, the search is limited to a few minutes on a site with a database structured by model.
Used parts and “for parts” generators: an underestimated source for obsolete references
When a part is no longer distributed new, neither by Rehlko nor by third-party distributors, the used market becomes the only realistic option. Platforms like Leboncoin regularly list SDMO generators sold as “out of order” or “for parts.” An out-of-service generator with a seized engine can provide an alternator, control panel, chassis, or tank in perfect condition.
A used generator purchased for parts often costs less than a single new part ordered individually. This practice is common among maintenance professionals managing a fleet of identical generators. Recovering an AVR regulator or a stator from a donor machine allows for the reactivation of a critical generator without waiting for a sometimes long delivery time on discontinued references.
The main risk remains invisible wear: an alternator may have an insulation defect without any external signs. Testing the insulation resistance with a megohmmeter before installation is a non-negotiable precaution for any recovered electrical part.
SDMO engine consumables: order from the engine manufacturer rather than the body manufacturer
On the majority of SDMO generators, the thermal engine is a third-party block: Honda GX for the portable gasoline range, Mitsubishi or Kohler Diesel for the semi-stationary ranges, John Deere or Volvo Penta for higher powers. Filters, belts, and injectors are more easily found under the engine manufacturer’s reference than under the SDMO reference.
An air filter for a Perform 3000 is a Honda GX200 filter. A maintenance kit for a Technic Diesel is a Kohler Diesel or Mitsubishi kit, depending on the version. Searching for “SDMO Perform 3000 filter” in a search engine leads to generalist resellers who apply a markup on a standard product. Searching for the original Honda reference opens access to a much wider distribution network, often with lower prices.
Generator-specific parts versus engine parts
The components that truly justify a search under the SDMO (or Rehlko) brand are those that the generator manufacturer designed or assembled:
- The AVR voltage regulator, specific to the alternator mounted by SDMO
- The control panel and protection circuit breaker, often proprietary
- The chassis silent blocks and soundproofing hood parts, sized for each model
- Wheelbarrow kits or transport supports, like the wheelbarrow kit for Perform 3000/4500
For these elements, going through a specialized distributor or the Rehlko portal remains the safest route. Mixing engine parts and generator parts in a single order from a single generalist supplier often leads to paying more for engine consumables without a guarantee of availability on specific parts.
Separating engine consumables (to be ordered from the engine manufacturer) from generator-specific parts (to be sourced from an SDMO or Rehlko distributor) reduces delays and compatibility errors on each intervention.