5337966 Engine Thermostat for Cummins ISB 5.9L

5337966 Engine Thermostat – High-Quality Aftermarket Replacement for Cummins Engines

Maintain optimal engine temperature in your Cummins-powered vehicle with this premium aftermarket 5337966 thermostat (180°F opening). Engineered as a direct OEM replacement, it provides precise temperature regulation to prevent overheating, improve fuel efficiency, and protect engine components in heavy-duty truck and industrial applications.

Key Features

Prevents Overheating: Opens at 180°F for reliable coolant flow, reducing risk of engine damage in demanding conditions.
Direct Fit Installation: Matches genuine Cummins specs for quick, no-modification replacement – easy to install during routine maintenance.
Built Tough for Heavy Duty Use: High-grade construction resists heat, corrosion, and wear for long-lasting performance.
Cost-Effective Alternative: OEM-level reliability at aftermarket pricing – ideal for fleet owners and budget-conscious operations.
Fast Shipping: In stock and ready to ship within 1-3 days.

Compatible Equipment Models

Equipment: ISB 5.9L 24V QSB, ISF series in industrial

Specifications

Part Number	5337966
Part Type	Engine Coolant Thermostat
Application	Heavy Equipment Maintenance
Brand	WINSCHEN
Country of Origin	China
SKU	CMI-5337966
MOQ	1 PCS
Delivery Time	1-3 business days

Questions? Contact us for fitment confirmation or bulk pricing. We stand behind our parts with fast shipping and easy returns.

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