The APDTY 143101 tailgate damper is a direct-replacement viscous shock absorber designed to control tailgate descent on 2015-2023 Ford F150 trucks without factory power tailgate systems. When this damper fails, your tailgate drops uncontrolled or slams shut, creating potential safety hazards and damage to bed components. This driver-side (left) damper restores smooth, controlled tailgate operation using OE-quality hydraulic dampening.
Key Takeaways
- Direct replacement for 2015-2023 Ford F150 models without power tailgate
- Installs on rear left (driver-side) of tailgate to control descent speed
- Replaces OE part numbers FL3Z-99406A10-A, FL3Z99406A10A, DZ43204, GL2008
- Simple 30-minute installation with basic hand tools
- Eliminates tailgate slamming and uncontrolled dropping
Buy APDTY 143101 directly from APDTY
What Does a Tailgate Damper Do?
A tailgate damper (also called a viscous shock or slam damper) is a hydraulic cylinder that controls the speed at which your F150 tailgate opens and closes. Unlike a spring-loaded assist, this damper uses internal fluid resistance to slow the tailgate's descent, preventing it from free-falling or slamming when released.
The APDTY 143101 mounts to the left (driver) side of the tailgate hinge assembly. When you release the tailgate latch, the damper extends in a controlled manner, allowing the tailgate to lower smoothly rather than dropping suddenly. This protects:
- Tailgate hinges and cables from impact stress
- Bed-mounted accessories and toolboxes from collision damage
- Your hands and body from pinch/crush injuries
- Paint and finish from repeated impact scratching
On F150 models without factory power tailgate systems, this mechanical damper is the primary descent control mechanism.
What Are the Symptoms of a Failed Tailgate Damper?
When the APDTY 143101 damper or its OE equivalent fails, you'll notice immediate changes in tailgate operation:
- Tailgate drops rapidly: Instead of controlled lowering, the tailgate falls quickly and slams into the open position
- No resistance when opening: Healthy dampers provide smooth, consistent resistance throughout the opening motion
- Visible fluid leakage: Hydraulic oil seeping from the damper body indicates internal seal failure
- Loud banging noise: The uncontrolled drop creates a metallic slam sound when the tailgate reaches full extension
- Uneven operation: If only one damper has failed (most F150s use paired dampers), the tailgate may drop crooked or bind
Continuing to operate with a failed damper accelerates wear on tailgate cables, hinges, and latch mechanisms. The repeated impact stress can bend hinge brackets or crack plastic bed caps.
Which Ford F150 Models Does APDTY 143101 Fit?
According to the verified compatibility data, the APDTY 143101 tailgate damper fits 2015-2023 Ford F150 trucks that do NOT have factory power tailgate systems. This covers:
- 2015 Ford F150
- 2016 Ford F150
- 2017 Ford F150
- 2018 Ford F150
- 2019 Ford F150
- 2020 Ford F150
- 2021 Ford F150
- 2022 Ford F150
- 2023 Ford F150
Important: This damper is specifically for trucks without the factory power tailgate option. If your F150 has electric tailgate operation (opens/closes via key fob or dash switch), this damper is NOT compatible. Always match your vehicle to the live compatibility chart on the product page to confirm exact fitment before ordering, as trim levels and option packages can affect compatibility.
This damper installs on the rear left (driver-side) of the tailgate. Most F150s use two dampers (one per side), so if both have failed, you'll need to order a second unit for the passenger side.
APDTY 143101 Specifications and Cross-Reference Numbers
This replacement damper meets or exceeds OE specifications for the Ford F150 application:
| Specification | Detail |
|---|---|
| Part Number | APDTY 143101 |
| Position | Rear Left (Driver-Side) |
| Type | Viscous Shock Absorber / Hydraulic Damper |
| Vehicle Compatibility | 2015-2023 Ford F150 (No Power Tailgate) |
| Replaces OE Numbers | FL3Z-99406A10-A, FL3Z99406A10A, DZ43204, GL2008 |
| Installation Time | Less than 30 minutes |
| Condition | Brand New |
When searching for this part, you may encounter these OE and aftermarket numbers that cross-reference to APDTY 143101:
- FL3Z-99406A10-A / FL3Z99406A10A: Ford original equipment part number
- DZ43204: Aftermarket cross-reference
- GL2008: Alternate supplier reference
All these numbers identify the same left-side damper application for F150 models within the specified year range.
How to Install the APDTY 143101 Tailgate Damper
Installation of the APDTY 143101 damper is straightforward and requires only basic hand tools. Most DIYers complete the job in under 30 minutes per damper. Here's the general process:
Tools needed:
- 10mm socket and ratchet (or appropriate size for mounting hardware)
- Flathead screwdriver (for trim panel removal if applicable)
- Helper (optional but recommended to support tailgate)
Installation overview:
- Support the tailgate: Have a helper hold the tailgate or use a support stand. With a failed damper, the tailgate will drop uncontrolled when released.
- Open the tailgate fully: Lower it to the horizontal position to access the damper mounting points.
- Locate the old damper: The driver-side damper mounts near the left hinge area, typically with one end on the tailgate inner structure and the other on the bed rail.
- Remove mounting hardware: Unbolt both ends of the old damper. Note the orientation and mounting position.
- Install APDTY 143101: Position the new damper in the same orientation as the original, aligning the mounting holes.
- Secure both ends: Thread and tighten mounting bolts to secure the damper. Do not overtighten.
- Test operation: Carefully release the tailgate and verify smooth, controlled descent. The damper should provide consistent resistance throughout the opening motion.
Safety notes: Never work under an unsupported tailgate. The damper is a wear item—if one side has failed, the opposite damper may be close to failure as well. Consider replacing both sides simultaneously to ensure balanced operation and avoid a second repair job shortly after.
Frequently asked questions
Do I need to replace both tailgate dampers at once?
While you can replace just one failed damper, both dampers typically wear at similar rates. If the left damper has failed, the right side is likely due for replacement soon. Replacing both ensures balanced tailgate operation and saves you from repeating the repair within months.
Will APDTY 143101 work on F150 trucks with power tailgate systems?
No. This damper is specifically designed for F150 models WITHOUT factory power tailgate systems. Trucks with electric tailgate operation use different components and control mechanisms. Always verify compatibility using the product page chart before ordering.
How long do tailgate dampers typically last?
Tailgate dampers are wear items with lifespan varying by usage frequency and environmental conditions. Heavy daily use, extreme temperatures, and exposure to road salt can accelerate wear. Most dampers last 5-10 years or 50,000-100,000+ tailgate cycles before hydraulic seals begin to leak.
Can I drive my F150 with a failed tailgate damper?
Yes, but the uncontrolled tailgate drop creates safety risks and accelerates wear on hinge and cable components. Avoid carrying items in the bed near the tailgate that could be damaged by the slamming motion, and be extra cautious when opening the tailgate to prevent hand/finger injuries from the rapid descent.
The APDTY 143101 tailgate damper restores safe, controlled tailgate operation on 2015-2023 Ford F150 trucks without power tailgate systems. This direct-replacement viscous shock absorber eliminates tailgate slamming, protects bed components, and prevents potential injury from uncontrolled drops. With simple 30-minute installation and OE-equivalent quality, this damper is an essential repair for any F150 experiencing tailgate control issues. Match your vehicle to the compatibility chart to confirm fitment, and consider replacing both left and right dampers simultaneously for balanced performance and long-term reliability.