Spare Parts by Part Number in 2026: how to get the exact part for CLAAS, John Deere, Olimac Drago and Väderstad before the season stops your machine

A machine rarely fails because a main beam snaps in two. More often, it stops because of a small bearing, a worn concave, a tired knife, or a wrongly ordered part that looks almost right but does not actually fit. That is where the real trouble starts. Not in the price of the part itself, but in downtime during the season. When the combine is waiting, the planter starts throwing doubles, and the header begins cutting badly, the field does not care whether you saved a little money at the start. It simply moves on without you.

That is why ordering spare parts by part number is not office work. It is service discipline. If you have the exact number, the exact model, a photo of the machine plate, and a clear idea of where the part sits, your chance of getting it right the first time is high. If you start with “it’s for CLAAS”, “it’s for John Deere”, or “I think it was this one”, the familiar sequence follows: returns, more waiting, another delivery, and another lost day in the middle of the season.

Why, in 2026, the exact part matters more than the lowest price

Everyone wants to save money on a part. That is normal. But there is one place where cheap becomes expensive very quickly: when you ordered the wrong part and the machine is still standing still. On a combine, planter, header or baler, the real cost is not just the price of the component. The real cost is the lost day. If the combine is waiting for a concave, if the header is no longer cutting cleanly, if the planter starts making skips and doubles, the field does not care what discount you got.

That is why the right first question is not “how much is it”, but “does it match exactly”. The OEM number, the exact model, the series, the generation, the size, and the mounting side all matter more than a nice product photo. There is one rule worth keeping in mind: downtime during the campaign almost always costs more than the correct part bought on time.

What to prepare before you call for a part

Brand, model, series and the exact working position of the part

Saying “I need a part for CLAAS” does not help. The same goes for “for John Deere”, “for Drago”, or “for Väderstad”. You need the exact model and where the part works on the machine. A concave for TUCANO is not automatically a concave for MEGA or LEXION. A shaft knife is not the same thing as a chopper knife. A sowing disc is not just “a disc for Tempo”. The more accurately you define the part, the lower the risk of getting something that is only close.

OEM number and why an old number is not always the wrong number

This is one detail many users overlook. Manufacturers often supersede old part numbers with new ones. That means if you bring an older CLAAS or other manufacturer OEM number, and a different code appears in the system, that does not automatically mean the part is wrong. In many cases it is simply a newer replacement number for the same part or for an updated version. So do not panic if the code in the system is not identical to the old one. What matters is the confirmed replacement logic and the actual fit.

A photo of the machine plate and a photo of the old part

This is the real-world routine in agricultural service. A clear photo of the machine plate sent in Viber or WhatsApp often does more work than five minutes of explanation on the phone. It is even better if you also send a photo of the old part itself. That matters especially with older machines, modified machines, and assemblies that have already been replaced once before with a different version.

The golden rule: left or right is always defined in the direction of travel

This is a classic mistake with knives, working elements and some planter and header parts. Left and right must always be defined in the direction of travel, not by how you are looking at the machine in the yard. If that point is not clarified, returns are almost guaranteed. When ordering knives and similar parts, this rule should already be in your mind before the conversation starts.

Harvest parts: where the most expensive mistakes happen

CLAAS TUCANO, MEGA and LEXION corn concaves: they are not just segments with openings

A concave is not just a piece of metal with openings. It is a working segment that directly affects threshing intensity, material flow and the sample quality coming out of the combine. Agritec has separate English pages for Corn Concaves CLAAS TUCANO, OE 0005531250, Corn Concaves CLAAS MEGA, OE 0006629001, and Corn Concaves CLAAS LEXION, OE 0007574391. That is not just categorisation. The machine series matters, and this is not an area for “it should probably work”.

With corn concaves, farmers often talk about intensive threshing, and rightly so. If the opening is already worn, if the segment is tired, or if the wear is uneven, the combine starts behaving differently. Sample quality drops, load increases, and losses can follow. If the concave has gone past its working edge, do not treat it as a small delayed replacement. It is a part directly tied to the quality of the entire harvest job.

Olimac Drago knives: when the cutting edge is already gone

With Drago, there is no point in checking only whether the knife is still physically there. What matters is the state of the working edge and whether the metal still has life left in it. Agritec has English pages for the Shaft Knife for Olimac Drago DR 11030, the Chopper Knife for Olimac Drago DR 12300, and the Finger Chain for Olimac Drago DR 11030. These are exactly the kind of parts where the operator feels the difference immediately in the field—either the header cuts cleanly, or it starts bruising material and loading the machine unnecessarily.

There is an important practical point here. On knives like these, hardened steel, and on some variants tungsten-protected working edges, are not marketing language. If the edge is gone, if the self-sharpening behaviour is no longer there, or if you fit a weak imitation knife without proper heat treatment, it goes blunt very quickly in dry corn. At that point you did not save money. You only delayed the problem by a couple of days.

Finger chain and clean crop flow

On headers, many operators focus on the knife and forget the chain. In reality, if crop flow starts to break down, even a good knife cannot compensate. The finger chain is not just a consumable. It is part of the machine’s rhythm. If it is stretched, worn or no longer running evenly, you lose smooth feeding exactly when the crop should be moving continuously.

Seeding and precision work: small components, major deviations

Väderstad sowing disc 451371: here, vacuum decides everything

In precision planting, failures often begin not in the large steel assemblies but in a component that looks small and harmless. One such example is the Sowing Disc for Väderstad Seeder 451371. But here, you should not look only at the disc itself. On Tempo planters, everything depends on vacuum. If the seal is baked and worn, if the system is leaking, or if the disc is no longer working correctly in that assembly, the vacuum escapes and the planter starts doing exactly what nobody wants to see in the field—doubles and skips.

That is the practical takeaway: a new disc will not save the planting job on its own if the seals and the entire vacuum assembly are already worn. So in this type of order, do not look at the part in isolation. Look at it as part of the system. If the deeper fault sits elsewhere in the vacuum circuit, changing the disc alone will only give a temporary result.

A small amount of wear can mean a big shift in field accuracy

This is the classic precision seeding problem. The part does not look dramatically broken, but the row in the field already tells a different story. That is why on seed drills and planters you do not wait until the component becomes scrap. You replace it when the placement quality starts breaking down. Delay is expensive here because you are paying not only for the part, but with the actual result in the field.

StarFire: when the real problem is not the receiver, but your patience in the morning

StarFire 3000 and StarFite 6000: the difference is not only “accuracy”

With GPS receivers, many people simplify the topic to “old” and “new”. That is not enough. Agritec has live English pages for the GPS receiver StarFire 3000 and the GPS navigation StarFite 6000. In practice, the difference is not felt only in accuracy. It is also felt in how quickly the system reaches a stable working signal in the morning, after standing still, or after moving through areas where reception is weaker. That convergence time is a real field issue, not a brochure detail.

When the machine needs to move immediately but the system is still “thinking”, this is no longer a convenience issue. It is lost time. If you work in more difficult terrain or you are simply tired of uncertainty at the start of the day, upgrading sometimes makes more sense than endless postponement. Not because the newer unit is shinier, but because confidence in the guidance line has a cost as well.

When upgrading is smarter than waiting

If the machine itself is still sound, but the guidance system is already slowing you down, making you wait and costing you confidence, that is when you look at the receiver. Sometimes you do not need a newer machine. You need one subsystem that brings back calm and consistency in the working day.

The symptom often points to the part

Noise, vibration, poor cut, doubles and skips

The machine almost always gives a warning before it stops. If you have an uneven cut, vibration in the header, poor threshing sample, doubles at planting, or skips in the row, do not start guessing blindly. These symptoms almost always point toward a specific assembly or wear part. Catch them early, and you are dealing with a part replacement. Ignore them, and you move into a deeper repair.

What you can check yourself and when it is time to stop

There are things you can see directly in the yard—worn edge, play, distortion, leakage, noise, irregular running. But there is also a point where stubbornness is no longer economy. If the machine changes behaviour sharply, if the sound becomes harsh, if quality drops noticeably, it is better to stop and look for the exact part than to wait for the next failure to arrive on its own.

The most common mistakes when ordering spare parts

Ordering by brand alone, without the exact number

This is mistake number one. “For CLAAS”, “for John Deere”, or “for Väderstad” is not enough. The exact number and the exact model are what drive a correct order. Everything else is guesswork.

Mixing models, generations and left/right orientation

Many machines look similar, but their parts are not. With knives, concaves, discs and other wear parts, this is a classic reason for a wrong order. Add the old left/right mistake on top of that, and you have a ready-made return shipment.

Ordering at the last moment

This is the mistake that causes panic most often. Not necessarily because the part does not exist, but because the time window no longer exists. Good maintenance is not about looking for the part when the machine has already stopped. Good maintenance is about knowing which assemblies are at the edge and staying ahead of them.

A long explanation instead of one clear photo

Practice is very clear here. A photo of the machine plate, a photo of the old part and the exact number almost always do more work than a detailed phone explanation. If you want fewer mistakes, take the photos and send them. That is the shortest path.

Quick checklist before you send an enquiry

• Do you have the exact machine model and series?
• Do you have the OEM number or at least a clear catalogue number?
• Do you have a photo of the machine plate?
• Do you have a photo of the old part?
• Have you clarified left or right in the direction of travel?
• Do you know exactly where the part works on the machine?
• Are you dealing with a worn working part or a deeper problem in the assembly?
• Have you checked whether a neighbouring worn part should be changed at the same time?

If you are still unsure on several of these points, do not guess. It is cheaper to send the correct details and photos right away than to order in a hurry and keep the machine waiting.

Frequently asked questions