423-8521 Caterpillar Fuel Filter

Tax included
€74.01 Tax excl.

CAT® Fuel Filters 423-8521 is designed to remove the small contaminants that cause the most harm to your Caterpillar Engines. Designed to work specifically with the following Caterpillar engines models: 3412C, and see below for other compatibilities.


  • - Unique filter media providing unsurpassed protection
  • - Acrylic beads preventing bunching
  • - Spiral roving providing greater pleat stability and maximum dirt holding capability
  • - Nylon center tube preventing metal contamination
  • - Molded end caps preventing leaks

Volume discounts

Quantity Discount You Save
6 10% Up to €44.41
24 24% Up to €426.30
1 to 2 days availability

Forest Products

SR5 SR500 XQP500

Wheeled Excavator
W345C MH

Engine - Generator Set
3412 C13 C13GENSET C15 C15 I6 C18 C18 GENSET C18 I6 C27 C32 C9 D350GC D400GC D450GC D500GC POWER SYS

Engine - Truck
C-12 C-15 C-16 C-9 C13 C15 C7 C9

Petroleum Products
C15 C18 C27 C32 CX31-C11I CX31-C13I CX31-P600 CX35-P800 TH31-C9T TH35-C11I TH35-C13I TH35-C13T TH35-E81 TH48-E70

345C 345C L 345C MH 345D 345D L 349D 349D L 349D2 349D2 L 365C 365C L 385C 385C FS 385C L

Marine Products

Engine - Industrial
C11 C13 C15 C27 C32

Wheel Tractor-Scraper
631E 637E

Track-Type Tractor

Load, Haul, Dump


Data sheet

Caterpillar Engine Type
3400 Series

Other Information

New product