
Illustrative photo — the delivered item may differ in appearance. Orders are fulfilled by catalog part number (SKU).
Serpentine Belt Cummins 3944838 | 3289648, 851014177, 51968200273
Ensure reliable power transmission and optimal engine cooling with this heavy-duty serpentine belt, designed for high-durability performance in Cummins engines.
Description
High-Performance Serpentine Belt for Cummins Engines
Keep your heavy-duty engine running smoothly with this premium serpentine belt. Engineered to deliver reliable power transmission to critical engine accessories like the alternator, water pump, and fan, this belt is built to withstand extreme temperatures and high-stress operating conditions.
Key Features & Specifications
- Part Number: 3944838
- Dimensions: 8PK1920 (8 Ribs, 1920 mm length)
- Material: High-strength, wear-resistant rubber compound designed to prevent slipping and cracking.
- Reliability: Provides consistent tension and reduces noise for quiet, efficient engine operation.
Engine Compatibility
This multi-rib belt is compatible with a wide range of Cummins diesel engines, including:
- Cummins 4BT 3.9
- Cummins 6CT 8.3
- Cummins ISC 8.3 / ISC 8.9
- Cummins ISL 8.9 / ISL 9
- Cummins QSC 8.3
- Cummins QSL 9



