THERMOSTAT GASKET FOR JOHN DEERE R136151

The R136151 thermostat gasket for John Deere is a sealing ring designed for the cooling system. This interchangeable part is comparable to part numbers R136151 and R5001373. It is used on many John Deere tractors, with applications spanning several series and, in some cases, varying by the tractor’s serial number.

A sealing ring associated with thermostat installation

This thermostat gasket is installed in the cooling control assembly. Its primary function is to ensure a tight seal between the components of the thermostat housing to minimize coolant leaks during reassembly. When replacing the thermostat or opening the housing, this type of gasket is commonly replaced to ensure a clean seating surface and a proper seal.

For this type of part, identification by part number is essential. In this case, you can search using R136151 or the equivalent part number R5001373.

Comparable Part Numbers and Wide Range of John Deere Applications

This sealing ring is listed for an extensive range of John Deere tractors. Applications include models from the 20, 30, 40, 50, 55, 60, 7000, 7010, 7020, 8000, 8010, 8030, 8060–8070, 9000, and 9020 series.

A detailed list of compatible models follows immediately after this text, with the exact model names and variants. You’ll also find specific versions such as Europe, USA, and MEXICO, as well as track-equipped models marked with a “T.” This wide range of applications demonstrates that this seal is not limited to a single generation of tractors.

Choose the Correct Part Number Before Ordering

To select the correct thermostat gasket, first check the part number on your old unit or in your maintenance manual. Then verify the exact tractor model —do not simply rely on the series designation. Multiple machines within the same family may use different versions depending on manufacturing changes.

This is particularly important when compatibility involves a series-specific part number, for example:

• part number 303519 on certain models of the 20 and 30 series,
• terminal 145553 on certain 7010 series models,
• threshold 009999 on certain 8000 series models.

These specifications help prevent errors between two assemblies that appear similar but differ in detail.

A Gasket That Needs to Be Replaced at the Right Time

A thermostat seal should be replaced as soon as it has been removed, crushed, or shows signs of wear. In practice, it is often replaced during work on the thermostat itself, its housing, or as part of a cooling system overhaul. Before confirming the part, simply compare the part number, the applicable John Deere model, and the series range when indicated in the applications.

Compatibility by Brand and Series

John Deere · 20 Series

• 4320 (303519 and later)
• 4520 (303519->)
• 4620
• 7020

John Deere · 30 Series

• 4430 (303519=> )
• 4630

John Deere · 40 Series

• 4240 (Europe)
• 4240 (USA)
• 4240S
• 4440 (Europe)
• 4440 (USA)
• 4640
• 4840
• 8440

John Deere · 50 Series

• 4050
• 4050E
• 4250
• 4350
• 4450
• 4650
• 4850
• 8,450

John Deere · 55 Series

• 4055
• 4255
• 4455 (MEXICO)
• 4455 (USA)
• 4555
• 4755
• 4955

John Deere · 60 Series

• 4560
• 4760
• 4960

John Deere · 7000 Series

• 7700
• 7800

John Deere · 7010 Series

• 7710 (=>145553)
• 7810 (USA) (=>145553)

John Deere · 7020 Series

• 7820 (USA)
• 7920

John Deere · 8000 Series

• 8100 (-> 009999)
• 8100T
• 8200 (-> 009999)
• 8200T
• 8300 (-> 009999)
• 8300T
• 8400
• 8400T

John Deere · 8010 Series

• 8110
• 8110T
• 8210
• 8210T
• 8310
• 8310T
• 8410
• 8410T

John Deere · 8030 Series

• 8430

John Deere · 8060-8070 Series

• 8560
• 8570

John Deere · 9000 Series

• 9100

John Deere · 9020 Series

• 9120
• Original Part Numbers
• R136151
• R5001373

FAQ — Frequently Asked Questions

What is the purpose of this thermostat gasket on a John Deere tractor?

This thermostat gasket ensures a tight seal at the thermostat mounting point in the cooling system. It is replaced when working on the thermostat housing or when the old gasket is crushed, hardened, or damaged during disassembly.

How do I identify part number R136151?

This part is identified by part number R136151, with R5001373 listed as a cross-reference for comparison. To ensure you select the correct part, verify the part number you are looking for and the exact tractor model, taking into account any serial number truncations when specified.

Are serial numbers important for John Deere 4320, 4520, 4430, 7710, or 8100 models?

Yes, they must be taken into account for models where a specific range is indicated. For example, certain applications differ depending on the ranges 303519, 145553, or 009999. You must therefore check the model and its serial number range before selecting this part number.

Is this part also compatible with John Deere articulated or track-type models?

Yes, this part number is also listed for several specific versions, such as 8100T, 8200T, 8300T, 8400T, 8110T, 8210T, 8310T, and 8410T. Verification is still essential, as compatibility always depends on the exact model and, in some cases, the serial number.

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