Denso
Engine Air Filter - FTF Air Filter

Denso 143-3709 Engine Air Filter - Primary

Brand Denso 143-3709
Position Primary
Height 55.0
Shape Other/unique
Side A Length 284.0
Side B Length 166.0
Product line Engine Air Filter - FTF Air Filter
Fits Ford · 11 vehicles

First Time Fit. Engineered to meet Denso quality standards for dependable filtration performance.

Engine air filter. Helps keep intake air clean for efficient engine operation.

Denso OEM heritage. Built by a global leader in engine filtration components.

Cross-references Ford FR3Z 9601-A, FRAM CA11958 and Motorcraft FA 1918 for the same application. See all 4.

$26.81Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $26.81
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Denso FTF Air Filter for Mustang

The Denso FTF Air Filter, part number 143-3709, is an engine air filter built for select Ford Mustang applications. It is engineered to meet Denso quality standards and support consistent airflow and filtration for everyday driving.

Key Features

  • Engine air filter for select Ford Mustang models
  • Denso First Time Fit Air Filter line for OE-style replacement needs
  • Unique-shaped filter with 284.0 mm side A length, 166.0 mm side B length, and 55.0 mm height
  • Built to Denso quality assurance standards
  • Part number 143-3709 for easy identification

Product Details

Denso’s First Time Fit Air Filter line is focused on direct-fit replacement parts that align with the dimensions and application requirements of the original filter. This 143-3709 engine air filter is sized for select Ford Mustang models and is intended to help maintain proper intake filtration in the engine air system. If you are searching for a Denso 143-3709 air filter for a Ford Mustang, this part matches the listed fitment and dimensions for the application.

This part cross-references Ford FR3Z 9601-A and Motorcraft FA 1918 for the same application.

What It Helps Address

  • Restricted engine airflow from a dirty or clogged air filter
  • Dust and debris entering the intake tract
  • Reduced filtration performance from a worn OE-style filter
  • Fitment issues when replacing the factory Ford Mustang engine air filter

Installation Notes and Fitment

Compatible With 2023 Ford Mustang, Primary. Compatible With 2020-2022 Ford Mustang, Primary, SEFI. Compatible With 2019 Ford Mustang, N/A. Compatible With 2015-2018 Ford Mustang, N/A. Verify the filter shape and dimensions before installation, especially on 2015-2023 Ford Mustang engine air filter applications. The listed part number 143-3709 should be matched to the vehicle’s original filter specification before replacement.

Quality Assurance

Denso states that First Time Fit Air Filters are built to its quality standards and backed by quality assurance. As a global OEM leader in engine filtration components, Denso applies that manufacturing experience to this air filter line for Ford Mustang service parts.

This part fits 11 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelPositionNotes
2023FordMustangMach 1PrimaryEngine Air Filter - FTF Air Filter
2022FordMustangMach 1PrimarySEFI; Engine Air Filter - FTF Air Filter
2021FordMustangMach 1PrimarySEFI; Engine Air Filter - FTF Air Filter
2020FordMustangGTPrimarySEFI; Engine Air Filter - FTF Air Filter
2019FordMustangGTN/AEngine Air Filter - FTF Air Filter
2018FordMustangGTN/AFTF Air Filter
2018FordMustangGT PremiumN/AFTF Air Filter
2018FordMustang—N/AFTF Air Filter
2017FordMustang—N/AFTF Air Filter
2016FordMustang—N/AFTF Air Filter
2015FordMustang—N/AFTF Air Filter
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Ford — FR3Z 9601-AFRAM — CA11958Motorcraft — FA 1918Wix — WA10315