Cummins 3971758 Wiring Harness – OEM Tier 3 5.9L ISB/QSB Engine Harness
Cummins 3971758 Wiring Harness – OEM Tier 3 5.9L ISB/QSB Engine Harness is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
Description and Details
Description and Details
The Cummins 3971758 Wiring Harness is a genuine OEM harness designed for Tier 3 5.9L ISB and QSB engines. Engineered to meet Cummins’ exacting standards, this harness provides secure electrical connectivity, accurate signal transmission, and long-term reliability in demanding engine environments.
Built with heavy-duty, corrosion-resistant materials, the 3971758 harness ensures OEM fit and performance. Whether replacing a damaged harness or performing scheduled maintenance, this genuine Cummins component restores system integrity and reduces downtime.
Key Features:
-
Genuine Cummins OEM Part
-
Part Number: 3971758
-
Designed for Tier 3 5.9L ISB / QSB engines
-
Provides secure, accurate electrical connections
-
Marine- and heavy-duty–grade construction
-
OEM fit and finish for simple installation and long-lasting performance
Applications:
✔ Cummins Tier 3 5.9L ISB and QSB engines requiring harness 3971758
Trust Cummins OEM harnesses for proper fit, reliable connectivity, and lasting durability.
Cummins 3971758 Wiring Harness – OEM Tier 3 5.9L ISB/QSB Engine Har...
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Product Disclosure – Scenic City Supply
Scenic City Supply is an independent liquidation company. We are a secondary seller of products and are not affiliated with, sponsored by, or authorized by any product manufacturer. All trademarks, brand names, model numbers, and logos mentioned are the property of their respective owners and are used strictly for identification and compatibility purposes.
Scenic City Supply’s inventory comes from multiple sources, including but not limited to surplus, liquidation, closeouts, overstock, and insurance-loss merchandise. All products are new, OEM, and unused unless otherwise stated. As a liquidator, some items may show cosmetic imperfections such as tarnish, discoloration, or minor surface wear. These conditions do not affect the function, performance, or integrity of the product.
Packaging may be damaged, show signs of storage, or be replaced for safe delivery. The sale of this product by Scenic City Supply is not subject to the policies of the manufacturer. Any warranty offered by the manufacturer is not available to you as the purchaser. Any applicable warranties or guarantees will be disclosed in writing at the time of sale.
Every item is opened and inspected prior to shipment to confirm quality and accuracy. If you are not fully satisfied with your purchase, you may return it within 30 days in its original packaging for a full refund.
