Skip to content
Free Standard Shipping on Eligible Orders Over $100 in the Contiguous U.S.
Free Standard Shipping on Eligible Orders Over $100 in the Contiguous U.S.

3991596C97 Genuine International DEF Wiring Harness

P/N: 3991596C97 Manufactured by: International
Original price $599.00 - Original price $599.00
Original price
$599.00
$599.00 - $599.00
Current price $599.00
1 in Stock
We accept:
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa
Not Sure Which Part Fits?
Our support team is here to help.
+1 (828) 209-8010
Monday – Saturday | 8:00 AM – 8:00 PM (EST)
Fast 2–3 Day Shipping
30-Day Returns
In Stock & Ships Fast
Expert Support Available
2-Year Warranty

At Line Truck Parts LLC, we are committed to providing reliable automotive parts and a transparent customer experience. Eligible parts purchased directly from our website are covered by a 2-Year Limited Warranty, giving you added confidence in your purchase. Learn More

Product Overview

The 3991596C97 is a genuine International DEF Wiring Harness designed for diesel exhaust fluid system electrical distribution. This harness is used to route signals and power between DEF system components, ensuring stable communication within the SCR emissions architecture.

Product Features

The 3991596C97 DEF Wiring Harness is manufactured to International factory specifications for emissions system integration.

  • Routes electrical signals within DEF system
  • Supports communication between tank and control modules
  • Maintains SCR system wiring integrity
  • Designed for International vehicle applications
  • Supports stable sensor data transmission
  • Ensures proper emissions system connectivity

Technical Specifications

Condition New
Part Number 3991596C97
Brand International
Part Type DEF Wiring Harness
Weight 5.0 lbs
System Diesel Exhaust Fluid System


Installation Notes

The 3991596C97 DEF Wiring Harness should be installed following correct DEF system routing and connector layout. Inspect harness condition, terminals, and connection points before installation.

Always verify DEF system configuration, harness routing, connector type, and vehicle application before installation.