SUBARU 643.SU1318 Lh Rear Door Lock Actuator Crosstrek Wrnty 1YR

( Model: CROSSTREK ), ( Part Type: Actuator Door Lock ), ( Conditions Options: Lh Rear Door Lock Actuator ), ( Genuine Oem: Yes ), ( Ipn: 643.su1318 ), ( Manufacturer Warranty: 1 Year ), ( Partout Id: A-131493571 )

Review SUBARU Lh Rear Door Lock Actuator Oem Crosstrek 1yr Wrnty fits 2018

The **Subaru 643.SU1318 LH Rear Door Lock Actuator** is a precision-engineered component designed exclusively for the **2018 Subaru Crosstrek**, ensuring seamless functionality and reliability for the left-hand (LH) rear door locking mechanism. This high-quality actuator is part of Subaru s advanced electrical door lock system, which integrates smoothly with the vehicle s keyless entry and push-button start features, delivering effortless convenience for drivers and passengers alike. Crafted from durable, corrosion-resistant materials, the actuator is built to withstand the demands of daily use, including exposure to varying weather conditions, ensuring long-term performance even in harsh environments. Its robust construction minimizes wear and tear, reducing the likelihood of premature failure and maintaining smooth operation over extended periods. The **1-year warranty** underscores Subaru s commitment to quality and customer satisfaction, providing peace of mind with every installation. Whether used in a replacement scenario or as an upgrade to enhance the vehicle s overall functionality, this actuator is a critical component that contributes to the Crosstrek s reputation for practicality and dependability. Its precise engineering aligns with Subaru s engineering standards, ensuring compatibility with the vehicle s electrical and mechanical systems for a flawless fit and operation.

**Pros and Cons of buying a Subaru 643.SU1318 LH Rear Door Lock Actuator (2018 Crosstrek, 1-Year Warranty)**

1. **Direct Fitment** The part number (643.SU1318) is specifically designed for the 2018 Subaru Crosstrek, ensuring compatibility without modifications. This reduces the risk of installation issues or mismatched components.

2. **Warranty Coverage** The inclusion of a 1-year warranty provides some reassurance against defects in materials or workmanship. If the actuator fails prematurely due to quality issues, you can return or replace it within the warranty period.

3. **Potential Cost Savings** Purchasing from a reputable supplier (assuming the seller is legitimate) may be cheaper than buying from a dealership or Subaru-approved parts center. This can be beneficial if you re on a budget or seeking a budget-friendly alternative to OEM parts.

4. **Ease of Installation** Since it s a direct-fit part, the installation process should be straightforward if you have basic mechanical skills or access to a mechanic. The Crosstrek s design is relatively accessible for rear door lock actuator replacement.

5. **Prevents Further Damage** A faulty rear door lock actuator can lead to electrical issues, door misalignment, or even damage to the door mechanism if ignored. Replacing it promptly can prevent more extensive (and costly) repairs down the line.

6. **Access to Aftermarket Support** Some aftermarket suppliers offer customer service, installation guides, or troubleshooting assistance, which can be helpful if you encounter issues during or after installation.

---

1. **Quality Concerns** Aftermarket parts, even those labeled as "direct fit," may not always match the durability or precision of OEM (Original Equipment Manufacturer) components. The actuator could wear out faster or fail prematurely, especially if subjected to harsh conditions (e.g., extreme temperatures, frequent use).

2. **Limited Warranty Duration** A 1-year warranty is relatively short compared to OEM warranties (which often last 3 5 years or longer). If the part fails after the warranty expires, you ll be responsible for the full cost of replacement or repair.

3. **Potential Counterfeit Risk** Buying from unverified sellers (e.g., third-party marketplaces without strong reviews or authentication) increases the risk of receiving counterfeit or low-quality parts. This could result in poor performance, compatibility issues, or early failure.

4. **No Subaru Brand Support** Unlike OEM parts, aftermarket actuators may not qualify for Subaru s technical support or recall coverage. If the part fails and you need assistance, you ll rely solely on the supplier s warranty or customer service.

5. **Installation Challenges** While the part is direct-fit, some users may find the installation process tricky, especially if they lack experience with automotive electrical or mechanical work. Improper installation could lead to further damage or malfunctions.

6. **Resale Value Impact** If you plan to sell the vehicle later, some buyers may prefer OEM or high-quality aftermarket parts. A known aftermarket actuator replacement might slightly diminish the vehicle s perceived value to certain buyers.

7. **Electrical Compatibility Risks** If the actuator s electrical connections or wiring harness doesn t match perfectly, it could cause intermittent issues (e.g., doors not locking/unlocking properly, electrical shorts, or sensor malfunctions). This requires careful testing post-installation.

---

Buying the **Subaru 643.SU1318 LH Rear Door Lock Actuator (2018 Crosstrek, 1-year warranty)** can be a practical and cost-effective solution if you prioritize affordability and direct fitment. It s particularly suitable for:

- DIY enthusiasts comfortable with basic repairs.

- Owners who want to avoid dealership prices for a non-critical part.

- Situations where immediate replacement is needed, and OEM parts are unavailable or prohibitively expensive.

However, the decision comes with trade-offs, primarily centered around **durability, warranty limitations, and potential quality inconsistencies**. If budget is not a concern and you want long-term reliability, an **OEM or high-quality aftermarket part with an extended warranty** (e.g., from a trusted brand like Dorman, ACDelco, or a Subaru-approved supplier) may be preferable.

---

1. **Verify the Seller s Reputation** Purchase from a well-reviewed supplier (e.g., Amazon, RockAuto, or a local auto parts store with good feedback) to minimize the risk of counterfeit or low-quality parts. Check for return policies and warranty details.

2. **Compare Prices** While aftermarket parts are often cheaper, compare prices across multiple sellers to ensure you re getting a fair deal. Avoid unusually low prices, which may indicate poor-quality goods.

3. **Consider OEM or Upgraded Aftermarket** If your budget allows, opt for an **OEM actuator** (from Subaru or a dealership) or a **premium aftermarket brand** (e.g., Dorman, Bosch, or Valeo) with a longer warranty (e.g., 2 5 years). These parts typically offer better longevity and compatibility.

4. **Test the Part After Installation** Once installed, thoroughly test the door locks in all modes (manual, remote, keyless entry) to ensure proper function. If issues arise, contact the supplier immediately under the warranty.

5. **Document the Purchase** Keep receipts, warranty information, and installation records in case you need to file a claim or troubleshoot later.

6. **DIY vs. Professional Installation** If you re unsure about electrical or mechanical work, consider having a mechanic install the part to avoid voiding warranties or causing further damage.

The **643.SU1318 actuator with a 1-year warranty** is a **viable option for cost-conscious buyers** who prioritize immediate replacement and direct fitment. However, for those seeking **long-term reliability and peace of mind**, investing in a higher-quality part with an extended warranty is the safer choice. Always weigh your priorities cost savings vs. durability before making the purchase.

Details:

LEFT REAR LOCK ACTUATOR OEM 2018 SUBARU CROSSTREK 1YR WRNTY: LH DOOR Included: Hassle-free 1 Year Warranty Our Part #: 9913190. Quality, Assured Parts All are Quality Tested Inspected. If something is wrong with an order, we certainly do want to help you. Please compare part numbers BEFORE purchasing.

Very happy customer, excellent value and service. More Parts: 1 Year Warranty. Model: CROSSTREK. Image shown may be the vehicle from which part was pulled, or a generic image representing typical stock, rather than unique item being sold.

Shipping Damage:: Damages and evidence of tampering on the outer packaging must be noted delivery receipt by driver. Please disregard other fitment charts they may not be correct. Easy to find parts that don't require a mechanics knowledge. Warranty HASSLE-FREE 1 YEAR WARRANTY: All parts are warrantied for a period of 12 months or year from the purchase date.

Free shipping only applies to items you keep.

specifications carlockiio:

• for makes: Subaru
• for years: 2018
• model: Crosstrek
• part type: Actuator Door Lock
• conditions options: Lh Rear Door Lock Actuator
• genuine oem: Yes
• ipn: 643.su1318
• manufacturer warranty: 1 Year
• partout id: A-131493571

returns carlockiio:

• time: 60 Days
• paid by: Buyer
• policy: Returns Accepted

payments carlockiio:

• other
• credit card: Visa
• wallet: Paypal

shipping carlockiio:

• service: Flat Rate Freight
• class: Freight
• type: Fixed
• cost: $20.00

general carlockiio:

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

seller carlockiio:

• # reviews: 23700
• city: Rancho Cordova, California
• rating: 97.2%

offer carlockiio:

• started: June 5, 2026
• best offers: True
• options: Ship-to-home
• quantity: 1
• sold: 0
• availability: In Stock

Subaru Is Similar To:

• Legacy Actuator Subaru 03 00 Lock 01 11995 Rear 02 Outback (33.6% similar) Free shipping items ship out the most economical way possible. If they are not shown or described they are not included. Ask questions first. Do not automatically expect extras such as bushings on a sway bar brake pads on a caliper bulbs in a taillight or screws. A radio will almost never have the ...(September 26th, 2014)
• 1993-2008 Oem Impreza Passenger Door Hinge Subaru Upper Forester (32.1% similar) Rear right passenger's side upper door hinge is a direct fit for the following subaru impress subaru forester genuine subaru part number 60479FA000 on thumbnails...(November 25th, 2014)
• Subaru Hand 2005-09 Left Brand Latch Door Assembly Legacy Rear (35% similar) Rear left assembly only. Brand new I purchased it to repair my car and then discovered I did not need it so it is still in the manufacturer's box and has never been used. Rear left door latch assembly purchased for a 2005 subaru legacy wagon. I assume it will fit model's...(April 16th, 2014)
• 2101049038 Subaru Crosstrek Xv Trunk Hatch Lid Latch Lock Actuator (37.4% similar) This is used in perfect working order...(June 21st, 2018)
• Impreza 99 Door 24027 98 Latch Rear 97 Subaru (28.8% similar) Images may not represent the color accurately. Ask questions first. A radio will almost never have the code and will need to be unlocked unless noted in the that a code is included. If they are not shown or described they are not included. Cms instrument clusters and radios might need programming at...(September 25th, 2014)
• 96 Latch 95 Assy Legacy Door 28327 97 Subaru Rear (18% similar) Images may not represent the color accurately. Do not automatically expect extras such as bushings on a sway bar brake pads on a caliper bulbs in a taillight or screws. These are used parts and they will almost always show wear including nicks dents scratches minor dents or scuffs. A radio will ...(September 24th, 2014)
• 05 Oem Forester 2005 Latch Lock 57310sa020 Subaru Release Hood (19.3% similar) Part NUMBER57310SA020PART notes hood latch. We search our yard pull the parts for you, free. Shipping prices for ground apply only to the continental states of the us...(May 17th, 2014)
• 57331ag00a Subaru Oem Legacy Trunk Keys Bracket (30% similar) Every effort is made to ensure information accurate, however, Infiniti subaru vehicles are heavily reliant on production dates, model's, trim levels, a detail can be missed. Should we experience any issues, will contact you immediately. No warranty can be provided on any parts if purchased ...(October 13th, 2018)
• 57345fj010 Subaru Impreza Fuel Door Release Trank Opener Cover Fit Oem (29.4% similar) ...(November 17th, 2018)
• 57420ac050 Subaru Legacy Wagon Right Left Front Doors Hatch Lock Cylinders (35.4% similar) The key is a copy of original. Lock cylinders from a 1996 legacy station wagon. Lower 48 states only. Genuine oem cylinders. Includes the lock cylinders for right and left front doors rear hatch. Includes one key. All parts are guaranteed to fit the vehicle application in listing. No APO addresses...(February 26th, 2018)
• Trunk Impreza 57449fe010 Oem Lid-cylinder 03-07 Subaru Keys (13.6% similar) This is our first year to receive this award...(August 17th, 2014)