Replacement Upper Case Palmrest for DELL Latitude 3420 E3420 - Backlit

Our review of this Replacement Upper Case Palmrest for the DELL Latitude 3420 E3420 series finds it is a straightforward, dependable swap for users needing a like-for-like palmrest with backlit keyboard support. This part delivers the single biggest benefit most owners will care about: restoring a factory-style top cover and functional backlit keyboard mount without replacing the entire chassis. It is aimed at laptop owners or repair technicians who want an original-quality, tested component that fits the Latitude 3420 family and carries a limited warranty.

Key Features

• Compatibility: Designed specifically for the DELL Latitude 3420 E3420 series so fitment and alignment match the original upper case precisely.
• Palmrest Part Number: Matches part numbers 4PX9K and 04PX9K so replacement is straightforward for users tracking OEM part IDs.
• Backlit Top Cover: Supports the backlit keyboard assembly so you retain keyboard illumination and integrated connector placement.
• Condition and Testing: Supplied 100% original brand new and each unit is tested before shipping to reduce the chance of receiving a defective piece.
• Warranty: Includes a 120-day warranty against manufacturer defects, offering short-term assurance after installation.

Who It's For

This palmrest is ideal for owners of a DELL Latitude 3420 or Latitude E3420 whose original upper case is cracked, scratched, or has damaged backlight functionality and who want an OEM-quality replacement. Repair shops and technicians who perform routine chassis repairs will appreciate the part number match and pre-shipping testing.

It is not intended for users with laptops outside the specified series or for those seeking cosmetic upgrade alternatives; buyers who need extended warranty coverage or cosmetic refurbishment may prefer third-party services or new donor units.

Pros & Cons

Pros

• OEM-compatible fit for DELL Latitude 3420 E3420 ensures correct alignment and connector placement.
• Backlit top cover preserves keyboard illumination and original appearance when installed.
• Each unit is tested before packing, reducing the risk of DOA parts arriving.
• Comes with a 120-day warranty against manufacturer defects for basic protection.

Cons

• Warranty covers manufacturer defects only and excludes man-made scratches or damage, which limits returns for cosmetic issues.
• Not a universal part; only fits the specified Latitude 3420/E3420 series so buyers must confirm model compatibility.

Specifications

Product	Upper case palmrest with backlit top cover
Compatible Models	DELL Latitude 3420, Latitude E3420 series
Palmrest Part Numbers	4PX9K, 04PX9K
Condition	100% original brand new, tested
Backlit Support	Yes, supports backlit keyboard assembly
Warranty	120-day warranty against manufacturer defects

Our Verdict

For anyone repairing a DELL Latitude 3420 or E3420, this replacement upper case palmrest is a practical choice that restores form and function without unnecessary extras. Its OEM compatibility, backlit support, and pre-shipping testing make it good value for repairs, though buyers should confirm model fit and understand warranty limits on cosmetic damage.

Frequently Asked Questions

Will this fit my Latitude 3420?
Yes, it is designed for the DELL Latitude 3420 and Latitude E3420 series and matches part numbers 4PX9K and 04PX9K.

Does it support a backlit keyboard?
Yes, the top cover supports the backlit keyboard assembly and retains the original illumination connectors.

What does the warranty cover?
The 120-day warranty covers manufacturer defects but excludes man-made scratches or damage from installation or use.