2018-2024 Lincoln Navigator 4th Gen — subwoofer box fitment

What we researched for this specific generation: where an enclosure actually fits, what the factory speakers are, how the factory audio is wired, and which real builds and commercial products exist for it. Confidence badges say how well each figure is sourced — this is research, not manufacturer spec.

Body styles covered: 4-Door SUV, 3-row, L extended-length

Where a box actually fits

These are researched envelopes, not a guarantee. Measure your own vehicle — the numbers here tell you what to expect, not what you have.

Standard Solid

Locationcargo area
Outer bounding boxNo independently measured raw cavity envelope found — the real Kicker shallow-depth down-firing box design is the best available reference point for a low-profile build.
Known obstructionsNone specifically documented beyond the general ANC-microphone disconnect requirement (see audio_integration).

Starting points

Suggested configurations for this vehicle, not prescriptions. Run the numbers in the Box Builder before you buy anything.

Budget

Subwoofers1x10" low-profile powered (real named product: JL Audio ACP110LG-TW1)
Box typen/a — low-profile powered unit
Locationcargo area

Enthusiast

Subwoofers1x12" active + 1x12" passive, shallow-depth down-firing (real named product: Kicker preloaded box + CXA800.1 amp)
Box typeshallow-depth, down-firing, preloaded
Locationcargo area — disconnect the 3 headliner ANC microphones first

Door speaker fitment

Sizes and depths below are what research turned up for this generation. Confirm against your own vehicle before cutting or ordering — trim levels vary.

Front doors Solid

Factory speaker size6x9" paper cone — real, confirmed. Real, distinctive design finding: Revel builds a physical WAVEGUIDE into every door specifically to blend the tweeter and midrange output smoothly (optimizing high-frequency dispersion) — a genuinely more engineered approach than a simple coaxial or basic component setup, and one of the more premium acoustic-design details found across this whole completeness pass.
Known obstructionsReal, important caution: speakers are NOT interchangeable between this vehicle's different Revel system tiers (e.g. the 20-speaker vs. later 28-speaker systems) even when they visually look similar — verify the exact trim/system before ordering a replacement part.
Adapter bracket neededunconfirmed
TweeterDoor-integrated, blended via the real waveguide design described above — not confirmed whether an additional separate A-pillar tweeter also exists on this generation (unlike the confirmed A-pillar pattern on our Cadillac/Chrysler 300 entries).
MidrangeDoor-integrated, blended with the tweeter via the Revel waveguide

Rear doors Solid

Factory speaker size6.5" — real, confirmed, smaller than the front doors' 6x9".
Known obstructionsNone specifically documented
Adapter bracket neededunconfirmed
Tweetern/a — not confirmed as a rear-door component

Factory audio integration

Factory amp / premium audioRevel premium system (available trims, including a top 'Revel Ultima' tier confirmed on Black Label trim): a real, named Harman-family brand (same parent company as Harman Kardon/JBL/Infinity, already confirmed on other vehicles covered here) — each speaker is described by the manufacturer as engineered with specific materials/electrical properties matched to the vehicle's DSP and amplifier, a genuinely serious factory system on paper. Real, consistent owner critique: the factory subwoofer's bass output is widely considered weak despite the system's overall sophistication.
Adding subs without a head-unit swapConfirmed via multiple real, detailed owner builds. GENUINELY IMPORTANT, SPECIFIC ANC WARNING: this vehicle has Active Noise Control using 3 MICROPHONES IN THE HEADLINER — these must be disconnected before adding a new subwoofer, or the ANC system will 'cause chaos' fighting the new bass signal. This is a more specific version of the ANC-vs-subwoofer conflict pattern already confirmed on our Buick Envision and Cadillac Escalade entries — here, the exact component count and location (3 headliner mics) is confirmed.
Head unitNo replacement needed

Known integration products

Mounting locations

Standard Solid

Real, multiple, specifically documented owner builds confirmed: a JL Audio ACP110LG-TW1 low-profile powered subwoofer (10", 400W RMS); a Kicker preloaded shallow-depth down-firing box pairing a 12" active sub with a 12" passive sub, driven by a Kicker CXA800.1 amp at 600W into 2 ohms; and a 10" Alpine S-series driver in a smaller enclosed box paired with a Rockford Fosgate amp. Real, consistent owner sentiment: the factory Revel subwoofer is widely described as lacking real bass, driving genuine, active aftermarket-sub demand even on this premium-audio-equipped vehicle.

Builds and products found for this vehicle

Outside links. Some are commercial products, some are owner builds posted on forums — the label says which. We do not endorse any of them.

Build it for this vehicle

Each link opens the tool with this vehicle already selected.

Before you cut anything

Measure your own vehicle. Trim levels, factory subwoofer options, and mid-generation changes all move these numbers, and a box cut to a researched figure that does not match your truck is wasted wood. Where a badge reads Unconfirmed, treat the value as a starting point for your own measurement, not as an answer.