1. Lock Hardware Deals
  2. sku: 31216293712298604
  3. FORD TRUCK EXCURSION

FORD TRUCK 643.FD8S04 Passenger Right Rear Door Lock Actuator

fits model: Excursion. make: Ford. year: 2000–2005.

643.fd8s04 Ford Truck Excursion Passenger Right Rear Door Lock Actuator Fits 2000-2005 00 01 02

( Brand: Ford Truck ), ( Part Type: Actuator Door Lock ), ( Conditions Options: Suv, U42 ), ( Genuine Oem: Yes ), ( Ipn: 643.fd8s04 ), ( Year: 2004 ), ( Manufacturer Warranty: 60 Day )

Review FORD TRUCK Passenger Right Rear Door Lock Actuator fits EXCURSION 2000–2005

The **Ford 643.FD8S04 Excursion Passenger Right Rear Door Lock Actuator (2000 2005 models, including the 2001 and 2002 years)** is a precision-engineered component designed to seamlessly integrate with the advanced power-locking system of the Ford Excursion, one of the most robust and feature-rich full-size SUVs of its era. This actuator is a critical part of the vehicle s door-lock mechanism, responsible for smoothly and reliably engaging or disengaging the passenger-side rear door lock when activated by the driver or via remote control. Crafted from high-quality, durable materials, it is built to withstand the demands of frequent use, harsh weather conditions, and the heavy-duty nature of the Excursion s construction, ensuring long-lasting performance even in demanding environments.

The **643.FD8S04** actuator is engineered with a compact yet robust design, featuring a motorized drive system that delivers precise, silent operation eliminating the rattles and squeaks often associated with older or lower-quality door lock actuators. Its internal components, including the gearing and electrical connections, are optimized for efficiency, allowing for quick response times and smooth transitions between locked and unlocked states. The actuator is compatible with Ford s **EEC-IV** (Electronic Engine Control) and **CAN (Controller Area Network)** systems, ensuring seamless integration with the vehicle s advanced electronics, including the power door lock switches, keyless entry, and remote control functions.

For the **2000 2005 Ford Excursion models**, this specific part is essential for maintaining the integrity of the vehicle s security and convenience features. Whether installed in a daily driver, a fleet vehicle, or a heavily used off-road SUV, the **643.FD8S04** ensures that the passenger rear door operates with the same reliability as the driver s side, preventing common issues like stuck locks, erratic engagement, or premature wear. Its direct-fit design means no modifications are required, making installation straightforward for both professional mechanics and experienced DIY enthusiasts. When sourced from a reputable supplier, this actuator is backed by rigorous quality testing to guarantee compatibility, durability, and performance consistency, making it an indispensable replacement for worn-out or malfunctioning original components.

### **Pros and Cons of buying a Ford 643.FD8S04 Excursion Passenger Right Rear Door Lock Actuator (2000 2005 Models)**

#### **Pros:**

1. **Direct Compatibility** This part is specifically designed for the 2000 2005 Ford Excursion, ensuring a proper fit without modifications.

2. **OEM Quality** If sourced from a reputable supplier (e.g., Ford dealership, authorized remanufacturer, or trusted aftermarket brand), it should meet or exceed original equipment standards.

3. **Reliability** Door lock actuators are mechanical components that, when functioning correctly, provide consistent operation, reducing the risk of sudden failures.

4. **Ease of Installation** The actuator is a straightforward replacement, typically requiring only basic tools and minimal disassembly of the door panel.

5. **Prevents Further Damage** A failing actuator can cause misalignment, electrical issues, or even door panel damage if ignored. Replacing it early avoids compounded problems.

6. **Warranty Coverage** Some suppliers offer warranties, providing peace of mind against defects or premature failure.

7. **Cost-Effective Alternative** Compared to labor-intensive repairs (e.g., rewiring or door panel replacement), this is a relatively inexpensive fix.

#### **Cons:**

1. **Potential Counterfeit Parts** Purchasing from untrusted sellers (e.g., unverified eBay, Amazon, or generic online marketplaces) risks receiving low-quality or fake parts that fail quickly.

2. **Electrical Compatibility Issues** If the wiring harness or connectors are damaged, the new actuator may not function properly, requiring additional diagnostics or repairs.

3. **Door Panel Wear** Over time, the door seal, hinges, or trim may degrade, making installation slightly more difficult or requiring additional maintenance.

4. **Limited Availability** As older Ford models go out of production, finding genuine OEM parts may become harder, increasing reliance on remanufactured or aftermarket options.

5. **Skill Dependency** While the replacement is manageable for DIYers, those without mechanical/electrical experience may struggle with wiring or alignment, potentially voiding warranties.

6. **Price Variability** Prices can fluctuate based on supplier, demand, and part condition (new vs. used/remanufactured), sometimes making it harder to justify the cost.

7. **Hidden Issues** The door lock mechanism itself (e.g., internal gears, springs) may still be worn, leading to premature failure of the new actuator if not addressed.

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### **Conclusion**

The **Ford 643.FD8S04 passenger right rear door lock actuator** is a **practical and necessary replacement** for Excursion models experiencing lock malfunctions, provided it is sourced from a **trusted supplier**. The benefits direct compatibility, reliability, and ease of installation outweigh the risks if you verify the part s authenticity and address any underlying electrical or mechanical issues. However, the cons (counterfeit parts, potential wiring problems, or door panel wear) underscore the importance of **researching suppliers, checking reviews, and ensuring a thorough installation**.

---

### **Recommendation**

1. **Buy from a Reputable Source** Purchase from **Ford dealerships, authorized remanufacturers (e.g., Dorman, Snap-on), or well-reviewed online retailers** (e.g., RockAuto, PartsGeek, or eBay with seller feedback).

2. **Verify Part Number Accuracy** Double-check the **exact model year and trim** to confirm compatibility, as slight variations exist between 2000 2005 models.

3. **Inspect Wiring and Connectors** Before installation, test the **electrical connections** and **grounding** to ensure the new actuator receives proper power.

4. **Consider Professional Installation** If unsure about wiring or door panel removal, consult a **Ford-certified mechanic** to avoid voiding warranties or causing further damage.

5. **Test After Installation** Fully operate the door lock mechanism (both manual and electrical) to confirm proper function before finalizing the repair.

6. **Keep a Backup Plan** If the issue persists, have a **diagnostic scan** (e.g., for electrical faults) or consider **replacing the entire door lock assembly** if the actuator is still problematic.

**Final Verdict:** This is a **worthwhile replacement** for functional failures, but **due diligence in sourcing and installation** is critical to ensure long-term reliability. For most DIYers with basic mechanical skills, it is a manageable repair that avoids more costly door panel replacements.

Details:

Miles: 253000 - N/A or Unknown. Ford Excursion Passenger Right Rear Door Lock Actuator Fits 2000 2005 01 02: Review photos this is your actual part. These extra attached parts are not covered by any warranty. Many electronic modules and components require programming.

Warranty covers the base component and none of other attached parts. Major components are stamped and may have heat sensitive tabs attached to indicated overheating that would void warranty. Stock #: 260645. Parts are not covered for external fluid leaks.

Video: Go to YouTube and search for: Playground PAR 260645 Part Detail: Placement. Passenger Right Rear Door Lock Actuator. Donor Vehicle: model: EXCURSION.

specifications carlockiio:

  • for models: Excursion
  • for makes: Ford
  • for years: 2000-2005
  • brand: Ford Truck
  • part type: Actuator Door Lock
  • conditions options: Suv, U42
  • genuine oem: Yes
  • ipn: 643.fd8s04
  • year: 2004
  • manufacturer warranty: 60 Day

offer carlockiio:

  • quantity: 1
  • sold: 0
  • availability: In Stock
  • started: April 29, 2026
  • options: Ship-to-home
  • best offers: True

seller carlockiio:

  • city: Port Washington, Wisconsin
  • # reviews: 12056
  • rating: 99.4%

payments carlockiio:

  • wallet: Google-pay
  • other
  • credit card: Visa

shipping carlockiio:

  • transit: 3-6 Days
  • class: Standard
  • cost: $15.99
  • type: Fixed
  • service: Standard

general carlockiio:

  • Car Truck Parts Accessories > Exterior Parts Accessories > Exterior Locks Lock Hardware
  • condition: Used

returns carlockiio:

  • policy: Returns Accepted
  • time: 30 Days
  • paid by: Buyer
for models: excursion, for makes: ford, for years: 2000-2005, part type: actuator door lock, conditions options: suv, u42, genuine oem: yes, year: 2004, manufacturer warranty: 60 day,
manufacturer: ford, category: auto parts > car truck parts accessories > exterior parts accessories > exterior locks lock hardware, sku: 31216293712298604,
Ford Truck Is Similar To:
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3 offers $54.87–$79.87 USD
  • Used. Offer #1 priced at $54.87 + $15.99 shipping estimate = $70.86* total. These extra attached parts are not covered by any warranty. Model: EXCURSION.+$15.99 shipping
  • Used. Offer #2 priced at $79.87 + $0.00 shipping estimate = $79.87* total. New Arrivals Rear Center Deck Lid Latch.FREE SHIPPING
  • Used. Offer #3 priced at $54.87 + $15.99 shipping estimate = $70.86* total. Passenger Right Rear Door Lock Actuator.+$15.99 shipping

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