Thermostat 04367398 Replacement Compatible With OEM 04343929 And 04367398 For Agricultural Tractors And Heavy Equipment

This thermostat is an aftermarket replacement designed to fit the common OEM references 04343929 and 04367398 used in a wide range of agricultural tractors and heavy equipment. It regulates the vehicle’s air-conditioning and cooling control circuits to help maintain a stable cab temperature and prevent compressor cycling. Replacing a failed thermostat reduces hotspots in the cab and helps prevent inefficient operation that can wear out the HVAC system in tough field conditions. This aftermarket sensor-and-switch assembly delivers reliable performance under demanding trail and farm use, with a capillary-driven sensing element built to withstand vibration and heat. It addresses symptoms like inconsistent cooling, cabin overheating, or premature compressor cycling, restoring steady HVAC operation when the original part wears out. By providing broad OEM cross-reference coverage, it offers a dependable, cost-effective option when stock is limited or accessibility is challenging in the field.

Comprehensive Vehicle Fitment

Manufacturer	Models / Series	Years / Details
Deutz-Fahr	Agroprima: 4.31, 4.51, 4.56, 6.06, 6.16	Various 1990s–2000s tractors
Deutz-Fahr	Agrostar: 4.61, 4.68 Freisicht, 4.78 Freisicht	Early–mid 2000s models
Deutz-Fahr	Agrostar: 6.08 Freisicht, 6.28 Freisicht, 6.38 Freisicht	Mid 2000s to 2010s
Deutz-Fahr	DX3 Series: DX3.10SC, DX3.30SC, DX3.50SC, DX3.60SC, DX3.65SC, DX3.70SC, DX3.80SC, DX3.90SC	DX3 family across multiple sub-variants
Deutz-Fahr	DX4 Series: DX4.10, DX4.11, DX4.30, DX4.50, DX4.70	DX4 family across multiple sub-variants
Deutz-Fahr	Hopfen variants: DX4.17, DX4.57	Specialized/market variants
Deutz-Fahr	Agrostar TG: 6.71, 6.81	TG-series configurations
Deutz-Fahr	DX6 Series: DX6.05, DX6.10, DX6.30, DX6.50	DX6 range
Deutz-Fahr	DX7 Series	DX7 family

Compatibility is documented across the Deutz-Fahr line, including Agroprima, Agrostar, DX3/DX4/DX6/DX7 families and related variants, with the same OEM references commonly used for replacement.

Product Specifications

Attribute	Details
OEM Reference Part Numbers	04343929, 04367398, 0034221, 82/9202-632, 9202-632, S.112285
Type	Air conditioning thermostat / temperature-controlled switch with capillary tube (bimetal sensing)
Manufacturer	Aftermarket Replacement
Application	HVAC/climate-control cooling circuits in agricultural tractors and heavy equipment
Capillary Length	Approximately 36 inches (varies by SKU)
Temperature Range	34–52°C switching range
Operating Principle	Capillary-sensed, bimetal switch that opens/closes at a setpoint to regulate the AC compressor control circuit
Material	Brass housing; stainless capillary; bimetal sensing element (typical)

The product is designed as a direct aftermarket cross-reference to the original 04343929/04367398 thermostats, with documented cross-compatibility across multiple Deutz-Fahr models.

OEM & Aftermarket Cross-Reference Information

Part Number	Brand / Type	Cross-Reference Notes
04343929	OEM	Original equipment reference; cross-references to 04367398, 0034221, 82/9202-632, 9202-632, S.112285
04367398	OEM	Original equipment reference; cross-references to 04343929 and other Deutz references
0034221	OEM	Additional OEM cross-reference
82/9202-632	OEM	Cross-reference variant
9202-632	OEM	Cross-reference variant
S.112285	OEM	Cross-reference variant
210-910	Aftermarket Replacement	Cross-replaces OEM 04343929 / 04367398

Reference cross-reference data confirms compatibility across OEM references and aftermarket equivalents, helping ensure reliable interchangeability on a wide range of Deutz-Fahr equipment.

What's Included

The box includes:

• Thermostat assembly

Related mounting hardware, wiring harness, and seals are not included.

Why Choose This Aftermarket Replacement?

• Direct-Fit Compatibility: Precisely matched to OEM references 04343929 and 04367398 for straightforward installation without custom adapters.
• OEM Cross-Reference Coverage: Broad cross-reference support ensures you can source this part even when the original is scarce.
• Premium Materials: Robust housing and capillary assembly designed for vibration, heat, and field conditions common on farms and trails.
• Performance Restoration: Restores consistent climate control and prevents erratic compressor cycling that accelerates wear.
• Rugged, Field-Ready Construction: Tuned for durability in harsh environments where temps swing rapidly and components see harsh temperatures.

Installation Notes:

• Disconnect the battery before handling electrical connections to avoid short circuits.
• Verify OEM cross-reference numbers prior to installation to ensure SKU accuracy for your model.
• Handle the capillary tube carefully—avoid kinks, sharp bends, or contact with hot surfaces that could affect response.
• Clean the mounting surface and inspect or replace any seals or gaskets to prevent leaks and ensure proper heat transfer.
• Secure wiring and tubing away from moving parts and high-heat zones; use clamps or protective sleeves as needed.
• Test after installation—reconnect power, run the HVAC/compressor system, and check for proper cycling and temperature regulation; verify there are no leaks in the associated lines.

Why Upgrade?

Running a worn-out thermostat can lead to inaccurate temperature control, inefficient HVAC operation, and unnecessary stress on the compressor. Replacing with this aftermarket thermostat restores precise switching, stabilizes cabin temperatures, and improves overall reliability in both trail and farm environments.