We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
White rectangular air filter with pleated media and cardboard frame, 13 by 21.5 by 1 inches

Appliance Factory Parts

Appliance Factory Parts 317659-401 Filter for Carrier 13 x 21.5 x 1

SKU CH-4BRA-QSB7H

A replacement air filter measuring 13 x 21.5 x 1 inches compatible with seven Carrier furnace models including FA4ANF024 and FB4ANF024

  • Selling UnitEach
  • TypeAir Treatment
  • Fits Carrier air handlers for reliable filtration
  • Exact 13 x 21.5 x 1 dimensions ensure proper seal
  • Replaces KFAFK0101SML and 317659401 part numbers
  • Compatible with seven Carrier models including FA4ANF024
  • New condition guarantees clean, ready-to-install filter

Carrier furnace filter 317659-401

This replacement air filter fits Carrier furnace models FA4ANF024, FB4ANF024, FA4BNF024, FX4CNF018, fb4bnf024, fc4cnf024000aaaa and FA4BNC024. It measures 13 x 21.5 x 1 inches and replaces part number KFAFK0101SML. Homeowners and HVAC technicians use it to maintain airflow and protect heating equipment.

Sustained airflow performance

The filter media captures dust and debris continuously during heating cycles without clogging prematurely. It maintains consistent resistance across the full service interval so the blower motor does not work harder over time. Regular replacement keeps the furnace running at its designed airflow rate.

Thermals noise and power

The filter adds no electrical load and produces no sound of its own. It allows the furnace blower to operate at normal speed and temperature by preventing restriction. Clean filters reduce strain on the motor and help the system maintain efficient heat transfer.

Highlights

  • Fits Carrier air handlers for reliable filtration
  • Exact 13 x 21.5 x 1 dimensions ensure proper seal
  • Replaces KFAFK0101SML and 317659401 part numbers
  • Compatible with seven Carrier models including FA4ANF024
  • New condition guarantees clean, ready-to-install filter

Specifications

BrandAppliance Factory Parts
Selling UnitEach
Part Number317659-401
TypeAir Treatment

Questions about this item

How much airflow resistance does the 13 x 21.5 x 1 filter add when the Carrier unit runs continuously?

The 1 inch thick media is designed for standard residential Carrier airflow; it adds minimal static pressure drop within the system's rated operating range.

Which Carrier model numbers must the existing equipment match for this 317659-401 filter to fit?

Compatible Carrier models include FA4ANF024, FB4ANF024, FA4BNF024, FX4CNF018, fb4bnf024, fc4cnf024000aaaa and FA4BNC024.

Will the 317659-401 filter work in an older Carrier cabinet that previously used the KFAFK0101SML part?

Yes, this filter replaces the KFAFK0101SML and matches the same 13 x 21.5 x 1 dimensions for those legacy Carrier units.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.