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
Round automotive air filter, white pleated paper element, metal end caps, 5-3/8 by 6-7/8 inches

Baldwin Filters

Baldwin Filters PA3654 Automotive Air Filter

SKU CH-X2R4-NDN5D

Automotive inner air filter with a round element design measuring 5 3/8 by 6 7/8 inches

  • Automotive engine inner air filter protects the engine
  • Round design fits specific engine compartments
  • 5 3/8 inch outside diameter matches housing
  • 6 7/8 inch height ensures proper seal
  • Model PA3654 identifies the correct replacement part

Automotive Inner Air Filter

The Baldwin Filters PA3654 is an inner air filter designed for automotive engine intake systems. It suits maintenance technicians and vehicle owners replacing a worn filter element during scheduled service intervals. The round design fits specific original equipment housings where an inner element is required. It is not for buyers who need a complete filter assembly with an outer housing or a different dimensional profile.

Round Element Dimensions

This filter uses a round element profile with a height of 6 7/8 in, a width of 5 3/8 in, and a length of 6 7/8 in. The outside diameter is 5 3/8 in. These physical limits determine whether the element seats correctly inside the designated air cleaner canister. Installers must verify that the housing matches these exact measurements before fitting. The filter cannot be adapted to housings that require a larger or smaller diameter element.

Direct Replacement Installation

Installation involves opening the air cleaner housing, removing the old inner element, and seating this filter into the same location. The element-only design means no separate housing components are included. Common issues arise when the housing sealing surface is damaged or when the outer cover is not re-torqued to the manufacturer's specification, allowing unfiltered air to bypass the element. Correct alignment during reassembly prevents premature engine wear.

Highlights

  • Automotive engine inner air filter protects the engine
  • Round design fits specific engine compartments
  • 5 3/8 inch outside diameter matches housing
  • 6 7/8 inch height ensures proper seal
  • Model PA3654 identifies the correct replacement part

Specifications

BrandBALDWIN FILTERS

Questions about this item

How do I know the Baldwin Filters PA3654 is the correct air filter for my vehicle?

Match the part number PA3654 and the round design with a 5 3/8 inch outside diameter and 6 7/8 inch height to your vehicle's service manual or the filter housing label.

What does the inner air filter designation mean for engine protection?

It sits inside the primary filter as a safety element, catching fine particles that pass the outer filter so the engine receives cleaner intake air.

Does the filter's round shape and listed dimensions guarantee a direct fit?

The round design with a 5 3/8 inch outside diameter and 6 7/8 inch height is built to OE specifications; verify the housing measurements before installation.

Also in this aisle

People compared these

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