EXPANSION TANK FOR THE FARMER 300 AND FAVORIT 500 FENDT

Expansion tank for Fendt Farmer 300 and Favorit 500 tractors

The expansion tank, part number G312100070060, is designed for several tractors Fendt in the Farmer 300 and Favorit 500 series. This part is installed in the cooling system and serves as a compensation reservoir when the coolant’s volume changes with temperature. To ensure a proper repair, it’s best to identify the part by its part number and the specific tractor model.

The Role of the Expansion Tank on These Tractors

In a cooling system, the expansion tank holds the coolant when it expands due to heat and then allows it to flow back as the engine cools. On a tractor, this part therefore helps maintain the coolant level and the overall stability of the system. It does not replace the radiator or the hoses: its role is that of a compensation and control reservoir.

A cracked, worn-out, or hard-to-read expansion tank can complicate routine maintenance. When replacing it, it is especially important to ensure it is the correct fit for the specific machine and, if necessary, to retain any associated components already present on the assembly, following the procedure specified for the tractor.

Fendt Applications Covered by This Part Number

This part number is used on Fendt tractors from the Farmer 300 series as well as on Favorit 500 models. Documented applications include, in particular, the Farmer 300 LSA, 305 LS, 306 LSA, 307 C, 308 LS, 309 LSA, 310 LSA, 311 LSA, and 312 LSA, as well as Favorit models 509 through 515, depending on the type.

Depending on the machine, the designation may also include a variant or a complete model number, for example, Favorit 509 (Model 509). These designations must be reproduced exactly as given to avoid confusion between similar names. A detailed list of compatible models follows this text.

Key reference points for choosing this model

The first useful reference is part number G312100070060. If this matches your needs, it will be easier to select the correct expansion tank. The second point to check is the exact tractor model designation: for these generations— Fendt —the same model number may exist in standard, C, LS, or LSA versions, and these variants must not be confused.

Therefore, you should not automatically assume that a Farmer 307 is the same as a Farmer 307 LS or 307 LSA without confirmation. Since no dimensions are listed here, identification must be based primarily on the part number and the machine’s application. If the tank is an older model that has been replaced in the past, note the complete model number directly from the tractor’s nameplate or its maintenance records.

When should replacement be considered?

Replacement is generally warranted if the reservoir has a crack, a leak, damage to the body, or if the fluid level is difficult to read. On a tractor used regularly, a clean and intact reservoir facilitates routine checks of the cooling system and prevents you from operating with a weakened component.

To avoid ordering errors, simply verify the part number you’re looking for and the exact model designation of your Fendt. This will allow you to select the correct expansion tank for Fendt without unnecessarily broadening your search to other configurations.

Compatibility by Make and Model

Fendt · Tractor

• Farmer 300 LSA
• Farmer 303 LSA
• Farmer 304 LSA
• Farmer 305 LS
• Farmer 305 LSA
• Farmer 306 LS
• Farmer 306 LSA
• Farmer 307 C
• Farmer 307 LS
• Farmer 307 LSA
• Farmer 308 C
• Farmer 308 LS
• Farmer 308 LSA
• Farmer 309 C
• Farmer 309 LS
• Farmer 309 LSA
• Farmer 310 LSA
• Farmer 311 LSA
• Farmer 312 LSA
• Favorit 509 (Type 509)
• Favorit 510 (Type 510)
• Favorit 511 (Type 511)
• Favorit 512 (Type 512)
• Favorit 514 (Type 514)
• Favorit 515 (Type 515)

Fendt · Farmer Series

• 300
• 300LSA
• 303LS
• 304LS
• 304LSA
• 305LS
• 305LSA
• 306LS
• 306LSA
• 307
• 307C
• 307LS
• 307LSA
• 308
• 308C
• 308LS
• 308LSA
• 309
• 309C
• 309LS
• 309LSA
• 310
• 310LSA
• 311
• 311LSA
• 312
• 312LSA

Fendt · Favorit Series

• 500
• 509
• 510
• 511
• 512
• 514
• 515

FAQ — Frequently Asked Questions

What is the purpose of this expansion tank on a Fendt tractor?

This expansion tank serves as a compensation reservoir in the cooling system. It accommodates volume changes in the coolant between a hot and a cold engine and makes it easier to check the coolant level on the tractor during routine inspections.

How do I identify the correct part number for this expansion tank?

The most straightforward identifier is part number G312100070060. You must then confirm the exact model of the tractor, as Fendt may offer the same base part number in standard, C, LS, or LSA versions, which requires careful verification.

Is this expansion tank compatible with the Fendt Farmer 307 LS, 309 LSA, and Favorit 510?

Yes, these model names are among the documented applications for this part number. The Farmer 307 LS, Farmer 309 LSA, and Favorit 510 are listed as compatible models; however, it’s still a good idea to compare the complete model designation listed on your machine.

Why is it important to distinguish between the C, LS, and LSA versions of the Farmer 300 series?

It is necessary to distinguish them because these suffixes are part of the tractor’s identification. A Farmer 307 C, a 307 LS, and a 307 LSA should not be automatically considered equivalent; to choose the correct expansion tank, always refer to the exact model.

Original spare part numbers and brands are provided for comparison purposes only. This does not imply that these are original parts.