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Side Sill Seals
By OE Match
- Porsche 356 1950-55
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Fits:
Porsche 356 Speedster
Porsche 356B 1960-63
Porsche 356C 1964-65
Click 'Zoom in' for large parts diagram.
Diagram ref no 1.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PCG55901107
The product you are viewing cross references to these numbers
- Porsche 356 1950-55
- Porsche 356A 1955-59
Fits:
Porsche 356
Porsche 356A 1950-59
Click 'Zoom in' for large parts diagram.
Diagram ref no 13, 14.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
64455901100
The product you are viewing cross references to these numbers
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
The OE Match mounting strip is a U-shaped metal mounting channel designed for the door step threshold rubber seal on Porsche 356 models. This component sits beneath the rubber door threshold seal and helps hold it securely in place along the door opening.
Sold each, 2 required per car (one for each door)
Fits:
Porsche 356 - 1950 to 1955
Porsche 356A - 1955 to 1959
Porsche 356B - 1959 to 1963
Porsche 356C - 1963 to 1965
U-shaped, metal threshold rubber seal mounting strip finished in stove enamelled, gloss black
Diagram ref no 26
The mounting strip supports the door threshold rubber seal and ensures it stays firmly attached to the body.
By holding the seal securely, it helps prevent movement, protects the sill area and contributes to a clean and finished appearance of the door opening.
Replacing worn or corroded mounting strips restores the proper installation of the threshold rubber and helps maintain the integrity of the door sill trim.
Function
• Seal Retention: Holds the door threshold rubber seal securely in place
• Mounting Support: Provides a metal channel for attaching the rubber step seal
• Body Protection: Helps protect the door sill area from wear and moisture
• Restoration Fit: OE-style design ensures correct installation in classic Porsche 356 models
Threshold mounting strips are exposed to moisture, road dirt and decades of use. Over time they may corrode, bend or lose their ability to hold the rubber seal correctly. Replacing them ensures the door threshold rubber remains properly secured and helps preserve the original appearance and protection of the door sill area.
Consider replacing the mounting strip if you notice:
• Loose or poorly fitted door threshold rubber seal
• Corrosion or damage to the metal channel
• Missing or bent mounting strips
• During interior or body restoration of a Porsche 356
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
64455191700
The product you are viewing cross references to these numbers
OEMatch Side Sill Seals — Fit, Finish, Clarity
Side sill seals form a protective barrier along the door threshold and lower body, keeping water, grit and road debris away from the sill cavity and cabin. OEMatch supplies a selection of rubber sill seals for Porsche models suitable for restoration, repair and routine maintenance.
Available Types- Extruded EPDM profiles for continuous sill runs
- Pre-formed sill weatherstrips shaped for specific model contours
- Adhesive-backed edge seals and trim pieces for local repair
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original side sill seals.
OE (Original Equipment) refers to parts matching original specifications for the side sill seals and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM side sill seals engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models. Fitted along the sill flange and door threshold, these seals block moisture and contaminants, limit wind noise and support door sealing. Correct material resistance, section profile and secure attachment are important for lasting performance.
- Prevents water ingress and sill cavity corrosion
- Reduces wind noise and vibration at the door threshold
- Protects paint edges and interior trim from grit and moisture
- Supports consistent door sealing and cabin comfort
- Prolonged UV and ozone exposure causing hardening or cracking
- Repeated compression from door closing leading to fatigue
- Abrasion from trapped dirt and road debris
- Misalignment, damaged mounting channels or corroded sill flange reducing contact
Replacing degraded sill seals reduces the risk of water entering the bodywork and helps prevent corrosion that can spread to structural areas. New seals restore acoustic insulation and maintain door fit and weatherproofing, contributing to long-term preservation of Porsche body panels.
Advantages- Made from weather-resistant rubber compounds such as EPDM
- Retains flexibility and sealing contact across normal temperature ranges
- Available in pre-formed and extruded profiles to suit specific model contours
Fitting can appear straightforward but may require specific procedures such as correct positioning, sealing detail and careful reassembly to avoid panel damage. If you lack the right tools or experience, or if the vehicle includes hidden fasteners or sensors, seek professional installation. Recheck fasteners and seal compression after initial use.
