Illustrative photo — the delivered item may differ in appearance. Orders are fulfilled by catalog part number (SKU).
Piston Cooling Nozzle Cummins 3901020 | J901020, 045032, M-3901020
Keep your heavy-duty diesel engine running at peak performance with the Cummins 3901020 piston cooling nozzle. This direct-replacement oil nozzle precisely sprays oil onto the piston crown to prevent overheating and avoid costly engine breakdowns.
Description
Keep Your Engine Cool and Protected with the Cummins 3901020 Piston Cooling Nozzle
The Cummins 3901020 Piston Cooling Nozzle is a critical component designed to maintain optimal operating temperatures within your heavy-duty diesel engine. By precisely spraying a targeted stream of engine oil directly onto the underside of the piston crown, this nozzle facilitates rapid heat dissipation. This continuous cooling action is essential for preventing thermal fatigue, piston distortion, and catastrophic engine failures under heavy loads.
Key Features & Benefits
- Direct Replacement: Engineered to match exact factory specifications for a seamless fit and hassle-free installation on compatible Cummins engines.
- Optimal Thermal Management: Delivers the precise volume of oil required to cool the piston crown, restoring your engine to peak operating efficiency.
- Heavy-Duty Durability: Built from premium-grade materials to withstand the extreme temperatures and high-pressure environments of diesel combustion chambers.
- Prevent Costly Breakdowns: Helps avoid severe piston damage, cylinder liner scuffing, and expensive engine rebuilds by ensuring reliable lubrication and cooling.
Product Specifications & Compatibility
- Part Number: 3901020
- Length: 18.60 mm (0.800 inches)
- Compatible Engine Models: Cummins 4BT 3.9, 6BT 5.9, ISB 3.9, ISB 5.9 (primarily pre-1991 B-series engines).
Ensure your diesel engine remains reliable and efficient. Replace worn or clogged oil nozzles with this high-quality Cummins component to secure long-term performance on the road or at the job site.
