Description
KN7050X EL740 PULLEY DRIVE COMPRESSOR
PART NUMBER(S):
Fleet Products: KN7050X (Remanufactured) | Replaces OE: Navistar: R9557050, 398567C91, 398567C92, 874706R2, 874706R93, 874707R93, 990177C91, 997104R91, 997109R91 | Caterpillar: 623033, 680620, 681504 | GM: 2397310, 2428601, 2435566, 2456774, 2457495, 2468827, 2493844, 2499019, 3827932, 3876238, 3957461, 5106141
DESCRIPTION:
Model: EL740 Pulley Drive Compressor
Vehicles: Heavy trucks, semi trucks, 18 wheelers, commercial trucks
• Mounting: 4-hole base mount
• Drive type: Pulley / belt driven
• Cooling: Air and water cooled
• Air inlet location: Left side, viewed from front
• Air outlet location: Left side flange discharge, viewed from front
• Cylinders: 2
• Bore x stroke: 2.75 in x 1.50 in
• Rated displacement: 7.4 CFM at 1250 RPM
• Maximum turbo pressure: 35 PSI
• Configuration: EL740 left-hand inlet and discharge pulley drive compressor
Applications: Used for air brake actuation in heavy trucks and commercial vehicles requiring an EL740 pulley drive compressor. This compressor uses a two-cylinder design with a 4-hole base mount, pulley drive, and left-hand air inlet and flange discharge configuration. Verify pulley drive, mount pattern, and port orientation before installation.
CROSS-REFERENCE(S):
KN7050, EL7050, EL740, KN7050N, ZZKN7050X, E-MDKN7050X
A cross-reference listing means this part may be a suitable replacement for the listed part numbers. Always verify fitment before installation.
IMPORTANT INSTALLATION NOTES:
✔ Verify 4-hole base mount and pulley drive configuration before installation
✔ Confirm left-hand inlet and left-hand flange discharge orientation before installation
✔ Inspect pulley alignment, belt condition, and mounting surface before startup
✔ Confirm compressor configuration against the original unit before installation
SOLD AS REMANUFACTURED | CORE RETURN REQUIRED
Built to OEM standards | thoroughly cleaned, inspected, and tested to ensure durability, performance, and reliability in demanding applications.
Warranty Information