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261298 - Miller 261298 Thermostat Housing Gasket for Cat 1.5T Engine

Packaging: 1 per ea
$56.49/ea $34.09/1 per ea only $34.09/eaSave 40%

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OVERVIEW

Genuine Miller 261298 Thermostat Gasket for Caterpillar 1.5T Engines

The Miller 261298 Gasket is a critical replacement component designed specifically for the thermostat housing of Caterpillar 1.5T engines found in select Miller engine-driven welding machines. As a genuine OEM part, this gasket is engineered to meet the exact specifications required by both Miller Electric and Caterpillar, ensuring a perfect mating surface seal that aftermarket alternatives often fail to achieve. Maintaining the integrity of your welder's cooling system is paramount to preventing overheating and costly engine downtime, especially during long duty cycles in industrial environments.

Constructed from high-grade, heat-resistant materials, this gasket is built to withstand the extreme thermal cycling and pressure fluctuations inherent in diesel engine operation. It effectively seals the connection between the thermostat housing and the engine block, preventing coolant leakage and ensuring the cooling system maintains the necessary pressure for efficient heat dissipation. Whether you are performing routine maintenance, replacing a faulty thermostat, or addressing a visible coolant leak, utilizing the correct OEM gasket is the best way to guarantee a long-lasting repair.

Professional technicians understand that the smallest components often play the biggest roles in equipment reliability. The 261298 gasket ensures that your Cat 1.5T engine remains sealed against environmental contaminants while keeping vital fluids contained. This part is compatible with specific Miller welder models utilizing the Cat 1.5T platform. Please verify your machine's serial number or engine model to ensure proper fitment before installation.

Key Technical Benefits:

  • OEM Precision: Matches the exact flange contours of the Cat 1.5T thermostat housing.
  • Thermal Stability: Resists hardening and cracking under high engine temperatures.
  • Leak Prevention: Provides a robust barrier against coolant seepage and pressure loss.
Additional Information
Packaging Description:1 Per Ea
Part Type:Thermostat Gasket
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Compatible Engine:Caterpillar 1.5T
Part Type:Thermostat Gasket
Brand:Miller OEM
Packaging Description:1 Per Ea

INCLUDED

  • (1) Thermostat Gasket

APPLICATIONS

  • Thermostat replacement on Miller welders with Caterpillar 1.5T engines
  • Repairing coolant leaks at the thermostat housing
  • Routine diesel engine cooling system maintenance
  • Overhaul of Cat 1.5T engine cooling components

FAQ

This gasket is designed for the Caterpillar 1.5T (Turbo) diesel engine used in various Miller engine-driven welders.

Yes, this is the authentic Miller Electric OEM part number 261298.

Generally, OEM gaskets are designed to be installed dry or with a specific tack spray. Refer to your engine's service manual, but avoid excessive RTV silicone unless specified.

No, gaskets compress to form a seal and take a 'set'. Once removed, they cannot be reused reliably and should always be replaced.

Look for wet spots, dried coolant residue (often white or green), or dripping around the thermostat housing on the engine block.

No, this SKU is for the gasket only. The thermostat itself is sold separately.

A failed gasket leads to coolant loss, which can cause the engine to overheat and potentially suffer severe damage if not addressed immediately.

This is specifically listed for the Cat 1.5T. It is unlikely to fit Perkins, Kubota, or Deutz engines unless they share the exact same housing design.