5441191 Noise Isolator for Cummins Engines ISB QSB 5.9L 6.7L
Premium aftermarket 5441191 noise isolator – direct replacement for Cummins ISB QSB 5.9L 6.7L engines APPS circuit.
Brand:CUMMINS / WINSCHEN
Country of Origin:CHINA
Minimum order quantity:1 PCS
Delivery time:1-3 Days
SKU:CMI-5441191
- Estimated Delivery : Up to 4 business days
- Free Shipping & Returns : On all orders over $200
5441191 Noise Isolator – High-Quality Aftermarket Replacement for Cummins Engines
Reduce electrical noise and interference in your Cummins engine’s accelerator pedal position sensor (APPS) circuit with this premium aftermarket 5441191 noise isolator. Engineered as a direct OEM replacement, it filters out RF interference to prevent erratic throttle behavior, torque converter cycling, and gear hunting for smoother, more reliable operation.
Key Benefits for Contractors and Operators
- Eliminates Throttle Interference: Filters noise in APPS circuit to stop false signals, rough shifting, and torque converter issues for consistent performance.
- Direct Fit Installation: Matches genuine Cummins specs for quick, plug-and-play replacement – minimize downtime and restore smooth driving faster.
- Built Tough for Heavy Duty Use: Durable construction resists vibration and harsh conditions for long-lasting reliability in demanding applications.
- Cost-Effective Alternative: OEM-level noise reduction at aftermarket pricing – ideal for fleet maintenance and budget-conscious repairs.
- Fast Shipping: In stock and ready to ship within 1-3 days.
Compatible Cummins Models
This noise isolator is commonly used in engines including (verify your machine’s parts manual for exact fit):
- ISB, QSB series
- 5.9L, 6.7L engines
- And related Cummins-powered trucks, construction equipment, and industrial applications
Specifications
| Part Number | 5441191 |
| Type | Noise Isolator (APPS Circuit) |
| Application | Accelerator Pedal Position Sensor Interference Reduction |
| Material | High-Quality Durable Components |
| Origin | China (Premium Aftermarket) |
| MOQ | 1 Piece |
Questions? Contact us for fitment confirmation or bulk pricing. We stand behind our parts with fast shipping and easy returns.




















