2018 Ford F-150 Speaker Sizes and Audio System Guide
2018 Ford F-150 Speaker Sizes and Audio System Guide
This page covers the factory speaker locations, speaker sizes, and upgrade notes for the 2018 Ford F-150. Equipment can vary by trim, body style, or audio package, so some trucks may include optional tweeters, a center channel, or a rear subwoofer while others do not. Factory amplifier details should be verified by trim and audio package before planning any audio upgrade.
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 | Mid-Range | 6.75 inch | |
| Front Door | Full-Range | 6.75 inch | |
| Rear Door | Full-Range | 6.75 inch | |
| Center Dash | Center Channel | 3.5 inch | if equipped |
| Center Dash | Full-Range | 6.75 inch | |
| 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.
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 truck has a premium or factory-amplified audio system. The listed speaker layout includes standard locations plus a few items that may be equipped depending on the audio package, so matching the exact position and size matters before buying replacements.
Usually Safe Upgrades
- If your vehicle uses the front door 6.75-inch location, that is the main size to match for replacement speakers in the front doors.
- If your vehicle uses the rear door 6.75-inch location, look for speakers sized for that opening and confirm the mounting depth before ordering.
- If your vehicle uses the center dash 6.75-inch full-range location, choose a speaker that fits that dash opening and verify connector style.
- If your vehicle has the 1-inch front pillar tweeter location, replacement tweeters should match that small opening and any factory mounting hardware.
- If your vehicle has the 8-inch behind-rear-seat subwoofer location, replacement options should be checked carefully for enclosure and trim compatibility.
Check Before Buying
- Confirm the exact speaker location in your truck before ordering, since some locations are only present if equipped.
- Measure mounting depth and opening shape, not just diameter, because factory fit can vary by location.
- Check whether the truck uses a factory amplifier or premium audio package, since that can affect speaker choice and wiring.
- Verify connector type and any adapter needs so the new speaker matches the factory plug and mounting points.
- Use the trim and audio package details to confirm whether the center dash speaker or subwoofer is present on your vehicle.
Installation Notes
The 2018 Ford F-150 uses 6.75-inch speakers in the front doors, rear doors, and center dash, with 1-inch front pillar tweeters, a 3.5-inch center channel, and an 8-inch subwoofer if equipped. Before starting, verify the trim and audio package because speaker count and amplifier availability can vary. Panel removal is required at the door, dash, and rear seat areas, so use care with clips and trim pieces to avoid damage. Check speaker depth and mounting clearance before ordering parts, especially in the front doors and center dash where space can be limited. Many upgrades will need mounting adapters and harness adapters to match the factory openings and wiring. If your vehicle has the factory subwoofer, confirm enclosure access and wiring before replacing it. Always test each speaker for polarity, balance, and fade after installation, and inspect all connections before reassembling the panels.
This is a moderate installation that can become more involved if your truck has optional audio equipment or a factory amplifier.
Common Mistakes When Replacing Speakers
When shopping for a 2018 Ford F-150 audio upgrade, the biggest errors usually come from assuming every truck is wired the same and skipping the vehicle-specific checks that matter most.
- Buying based only on the body-style label instead of checking actual speaker locations on the vehicle.
- Assuming every trim has the same speaker count or factory audio setup instead of verifying the trim and audio package first, since the speaker count can range from 6 to 7 and amplifier details are trim-dependent.
- Ignoring optional equipment such as the front pillar tweeters, center dash center channel, or behind-rear-seat subwoofer if equipped, which can change the parts needed for the upgrade.
- Choosing speakers without confirming mounting depth and size for each location, especially the 6.75-inch front door, rear door, and center dash positions.
- Overlooking connector compatibility and adapter requirements, which can create installation problems even when the speaker size looks correct.
- Reassembling everything before testing the new speakers and factory audio functions, which makes it harder to catch wiring or balance issues early.
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 it helps to plan upgrades around the front stage first. Some models also include optional tweeters, a center channel, or a subwoofer if equipped. Factory amplifier details should be verified by trim and audio package before choosing an upgrade path.
| Goal | Best Upgrade Path | Why |
|---|---|---|
| Better clarity | Start with the front door speakers and, if equipped, the front pillar tweeters. Upgrading the front stage first usually gives the biggest improvement in vocals, detail, and overall balance. | Clarity comes from the speakers you hear most often. The front stage carries most of the music, and optional tweeters can help clean up the high end when they are part of the system. |
| More bass | If equipped with the factory subwoofer, consider whether it meets your needs before adding an aftermarket subwoofer system. If bass is still lacking, adding a dedicated subwoofer can complement the factory speakers well. | Bass is usually the first area where factory systems feel limited. A dedicated subwoofer adds low-end output without forcing the door speakers to handle deep bass. |
| Louder sound | Properly matched speakers and amplifier integration can improve volume and reduce distortion. Before adding aftermarket amplification, verify factory amp and premium system integration by trim and audio package. | Higher volume only helps when the system stays clean. Matching the speakers and amplifier correctly keeps the sound controlled and avoids harshness at higher listening levels. |
| Budget improvement | Replace the front door speakers first with same-size replacement speakers and the correct mounting brackets. This gives the best value because the front doors handle the most-used part of the system. | A budget upgrade should focus on the speakers that do the most work. Front door replacements usually deliver the most noticeable improvement for the money. |
| 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 approach keeps the interior looking original while still improving sound. It also helps maintain a neat installation without changing the cabin layout. |
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 data also lists a front door mid-range and a front door full-range speaker at that size, so the exact setup can vary by audio package.
What size are the rear door speakers?
The rear door speakers are 6.75 inches full-range. That size is listed directly for this model year.
Does the 2018 Ford F-150 have a factory subwoofer?
A factory subwoofer is listed as an 8-inch unit behind the rear seat if equipped. It is trim-dependent, so the audio package should be verified before ordering parts.
Do I need mounting adapters to replace the speakers?
Mounting adapters may be needed depending on the speaker location and the replacement speaker design. The factory sizes are 6.75 inches in the doors and center dash, with optional 1-inch tweeters and an optional 8-inch subwoofer.
Can I replace the speakers without replacing the radio?
Yes, speaker replacement can be done without replacing the radio. The factory radio setup varies by trim, so matching the new speakers to the existing system is the key step.
Does the factory amplifier vary by trim?
Yes, factory amplifier details should be verified by trim and audio package. The trim data shows amplifier availability as optional on the listed configurations.