2018 Ford F-150 Speaker Sizes and Audio System Guide
2018 Ford F-150 Speaker Sizes and Audio System Guide
This page summarizes the factory speaker layout for the 2018 Ford F-150 and highlights the locations, sizes, and upgrade notes that matter when planning audio changes. Equipment can vary by trim, body style, or audio package, so speaker count and certain components may differ from truck to truck. Use the details here to understand what is commonly fitted and what should be verified before choosing replacement parts.
Data verified by Nick Marchenko, PhD
Speaker Size Chart – 2018 Ford F-150
Use this table as the main reference. Fitment depends on trim, factory audio package, mounting depth, and adapter availability.
| Location | Type | Factory Size | Note |
|---|---|---|---|
| Front Pillar | Tweeter | 1 inch | if equipped |
| Front Door | Full-Range | 6.75 inch | |
| Front Door | Mid-Range | 6.75 inch | |
| Rear Door | Full-Range | 6.75 inch | |
| Center Dash | Full-Range | 6.75 inch | |
| Center Dash | Center Channel | 3.5 inch | if equipped |
| Behind Rear Seat | Subwoofer | 8 inch | if equipped |
Generic speaker location diagram. The table above shows the specific factory sizes for this vehicle. Exact location details may vary by body style and trim.
Recommended Speakers for the 2018 Ford F-150
Selected aftermarket speakers that match the factory sizes for this vehicle. Always verify mounting depth, connector type, and audio package before ordering.
6.75" Speakers
3.5" Speakers
8" Speakers
Disclosure: Product links are affiliate links. We may earn a commission at no extra cost to you.
Speaker Count by Trim – 2018 Ford F-150
Speaker count and audio equipment vary by trim and factory audio package. This table lists known configurations from our database.
| Trim | Speakers | Amplifier | Radio | Navigation |
|---|---|---|---|---|
| Lariat 4x4 SuperCab Styleside 8 ft. box 163 in. WB | 7 | opt | SiriusXM AM/FM/Satellite, seek-scan | ✓ |
| XL 4x4 SuperCab Styleside 8 ft. box 163 in. WB | 6 | opt | AM/FM stereo, seek-scan | – |
| XLT 4x4 SuperCab Styleside 8 ft. box 163 in. WB | 6 | opt | AM/FM stereo, seek-scan | ✓ |
Data sourced from manufacturer specifications. Verify with the window sticker or dealer before ordering audio components.
Vehicle and Audio System Specifications
This block helps identify the vehicle and its audio system configuration for fitment decisions.
What Speakers Fit the 2018 Ford F-150?
Aftermarket fitment should start with the factory speaker locations listed for this 2018 Ford F-150, but diameter alone is not enough. Check mounting depth, bracket fit, connector type, and whether the vehicle has a premium or factory-amplified audio system. The listed speaker sizes give you a starting point, but the best match depends on the exact location and audio package. Selected audio systems may also include an 8-inch subwoofer behind the rear seat if equipped.
Usually Safe Upgrades
- If your vehicle uses the front door 6.75-inch locations, that is the main size to verify first for replacement speakers.
- If your vehicle uses the rear door 6.75-inch location, look for speakers that match that opening and the factory connector style.
- If your vehicle uses the center dash 6.75-inch full-range location, confirm depth and grille clearance before buying.
- If your vehicle has the 1-inch front pillar tweeters if equipped, choose replacements that match the tweeter opening and mounting style.
- If your vehicle has the 3.5-inch center channel if equipped, verify that the speaker is intended for that smaller dash location.
Check Before Buying
- Confirm the exact speaker location and size in your truck before ordering, since equipment can vary by audio package.
- Measure mounting depth and check for any bracket or adapter needs so the replacement clears the factory opening.
- Verify connector type and wiring so the new speaker matches the vehicle harness.
- Factory amplifier details should be verified by trim and audio package before choosing speakers, especially if you are upgrading multiple locations.
- If you are replacing the optional subwoofer if equipped, confirm enclosure fit and speaker size before purchase.
Installation Notes
The 2018 Ford F-150 uses a mix of 6.75-inch speakers in the front doors, rear doors, and center dash, with a 1-inch front pillar tweeter if equipped and a 3.5-inch center channel if equipped. Some trims may also include an 8-inch subwoofer behind the rear seat, so confirm the exact audio package before ordering parts. Installation usually starts with careful panel removal, since door and dash trim pieces can be tight and clips can break if pried too hard. Check speaker depth and mounting clearance before final assembly, especially in the front doors and center dash. Mounting adapters may be needed to match the factory openings, and harness adapters can help avoid cutting the vehicle wiring. If your vehicle has the factory subwoofer, verify enclosure access and connector style before replacing it. Test every speaker after installation to confirm polarity, balance, and that all channels play cleanly before reinstalling the panels.
Moderate difficulty, since panel removal, trim fitment, and audio-package differences can affect the install.
Common Mistakes When Replacing Speakers
Before buying speakers for a 2018 Ford F-150, the biggest errors usually come from assuming every truck is wired the same and skipping a few key fitment checks.
- Buying based only on the body-style label instead of checking actual speaker locations on the vehicle.
- Ignoring trim and audio package differences, since speaker count can range from 6 to 7 and amplifier details should be verified by trim and audio package.
- Assuming the front pillar tweeters or the behind-rear-seat subwoofer are always present, when both are listed as if equipped and can vary by setup.
- Skipping mounting depth and connector checks before ordering, which can lead to a speaker that fits the opening but not the factory hardware.
- Overlooking the center dash layout, since some trucks use a 6.75-inch full-range speaker there and may also include a 3.5-inch center channel if equipped.
- Reassembling the panels before testing the new speakers, which makes it harder to catch wiring or channel issues while everything is still accessible.
Generation & Model Family
The 2018 Ford F-150 belongs to the Thirteenth generation (P552) - Facelift (2018–2020) family. Nearby model years often share similar speaker locations and audio layouts, but exact fitment can vary by trim and audio package – verify before ordering.
Recommended Upgrade Path
The 2018 Ford F-150 uses a speaker layout that can vary by trim and audio package, so the best upgrade path depends on what is already installed. A smart plan starts with the front stage, then adds bass or power only where needed. Factory amplifier details should be verified by trim and audio package before choosing any larger system changes.
| Goal | Best Upgrade Path | Why |
|---|---|---|
| Better clarity | Upgrade the front door speakers first, then add front pillar tweeters if equipped, so the main listening area gets cleaner mids and highs. | The front stage does the most work for vocals, instruments, and detail, so improving it gives the clearest audible change. |
| More bass | If the factory subwoofer is equipped, treat it as a starting point and consider an aftermarket subwoofer upgrade for stronger low-end output. | A dedicated bass upgrade adds impact without asking the full-range speakers to handle low frequencies they cannot reproduce as effectively. |
| Louder sound | Properly matched speakers and amplifier integration can improve volume and reduce distortion. Verify factory amp or premium system integration before adding aftermarket amplifiers. | Higher output only helps when the system is matched correctly, and integration matters more when the truck already has amplified audio equipment. |
| Budget improvement | Replace the front door speakers first with same-size replacement speakers with correct mounting brackets, then upgrade the rear speakers later if needed. | The front doors are the most-used speakers, so this approach gives the best value without committing to a full system overhaul. |
| Factory look | Use same-size replacement speakers with the correct mounting brackets and harness adapters for a clean install that preserves the factory wiring and appearance. | This keeps the cabin looking original while still allowing a meaningful audio upgrade. |
Mounting Adapters and Wiring
The same nominal diameter does not guarantee a direct mount. Before ordering, confirm:
- Speaker depth: Aftermarket speakers often have larger magnets – measure available depth at each location.
- Mounting brackets: Door locations typically need a bracket or spacer to clear the window regulator and achieve correct mounting depth.
- Wiring harness adapters: Use a plug-and-play harness adapter to preserve factory wiring.
- Tweeter mounting cups: Replacing OEM tweeters may require surface-mount cups or brackets depending on the location.
- Factory or premium amplified systems: If the vehicle has a premium or factory-amplified audio system, confirm how the factory radio, amplifier, and speakers are connected before adding aftermarket amplifiers. Depending on the setup, a line output converter, DSP, integration harness, or professional installation may be needed.
- Connector type: Factory connectors vary by trim and model year – confirm compatibility before splicing or using an adapter.
Frequently Asked Questions
What size are the front door speakers in a 2018 Ford F-150?
The front door speakers are 6.75 inches. The vehicle data also lists a separate 6.75-inch mid-range in the front door area, so speaker layout can vary by audio package.
What size are the rear door speakers?
The rear door speakers are 6.75 inches. This size is listed directly in the factory speaker data for the 2018 Ford F-150.
Does the 2018 Ford F-150 have a factory subwoofer?
A factory 8-inch subwoofer is listed behind the rear seat if equipped. Subwoofer availability can vary by trim and audio package.
Can I replace the speakers without replacing the radio?
Yes, speaker upgrades can be done while keeping the factory radio. The exact approach depends on the trim, speaker layout, and whether the truck has an optional amplifier.
Do I need mounting adapters for speaker replacement?
Mounting adapters may be needed depending on the speaker size and the location being upgraded. The factory data shows multiple speaker positions, so fitment should be matched to the specific location.
Should I verify the factory amplifier by trim?
Yes. Factory amplifier details should be verified by trim and audio package because amplifier availability is not universal across the 2018 Ford F-150 lineup.