HomeBody > Gaskets and Sealing SystemsURO 123SEALKIT Body Seal Kit
Part #: 123SEALKIT

URO 123SEALKIT Body Seal Kit

9 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$410.31Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Mercedes-Benz, 300D
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Body Seal Kit for Mercedes-Benz 300D

Restore sealing performance on 1977-1985 Mercedes-Benz 300D models with this URO body seal kit. It replaces aged, cracked body seals that can let in water, dust, and wind noise while helping protect the interior from long-term damage.

  • Fits 1977-1985 Mercedes-Benz 300D
  • OE-style seal profiles help reduce squeaks and wind intrusion
  • Long-life EPDM rubber resists heat, UV exposure, water, and airborne debris
  • Direct replacement for worn body seals on classic Mercedes-Benz 300D applications
  • URO part number 123SEALKIT for streamlined ordering and lookup

Sealing Performance and Fit

URO 123SEALKIT is a body seal kit built for the Mercedes-Benz 300D platform, with fitment coverage for 1977-1985 models. The seal material is formulated to maintain flexibility and sealing integrity over time, helping close gaps that can allow moisture and contaminants into the cabin. This part cross-references URO-015528 for the same application.

Common Problems This Kit Addresses

  • Water leaks around deteriorated body seals
  • Wind noise caused by hardened or flattened sealing surfaces
  • Dust and debris entering through worn perimeter seals
  • Interior damage linked to cracked or missing seals
  • Squeaks from poor seal contact on aging body openings

Installation Notes and Tips

Before installation, inspect the sealing channel and surrounding body surfaces for old adhesive, corrosion, or deformation. Clean and dry the mounting area thoroughly so the new seal can seat evenly. Verify the profile and placement against the original seal before final installation on your Mercedes-Benz 300D.

Quality Assurance

This URO body seal kit uses heat- and UV-resistant EPDM rubber and is backed by a 24 Month Unlimited Mileage Warranty.

This part fits 9 vehicles. Search below:

YearMakeModelPositionNotes
1985Mercedes-Benz300DN/A9 pc kit
1984Mercedes-Benz300DN/A9 pc kit
1983Mercedes-Benz300DN/A9 pc kit
1982Mercedes-Benz300DN/A9 pc kit
1981Mercedes-Benz300DN/A9 pc kit
1980Mercedes-Benz300DN/A9 pc kit
1979Mercedes-Benz300DN/A9 pc kit
1978Mercedes-Benz300DN/A9 pc kit
1977Mercedes-Benz300DN/A9 pc kit

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

123SEALKITURO-015528

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.