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Side Sill Seals

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DISPLAYING 17 to 26 (of 26 products)
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90155100030
Product Information
Product Information
Door Threshold Side Sills Protectors.
The OE Match Door Threshold Side Sill Protectors are premium-quality replacement sill trim protectors designed to safeguard the door threshold area on compatible classic Porsche models. Manufactured to OE specifications for fit, finish and durability, these protectors shield the painted sill from scuffs, scratches and everyday wear while restoring the original factory appearance of the vehicle's interior entry point.  

Fits:
  • Porsche 911 1965-1968 2.0L / 912 SWB (F)
  • Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F) 

Manufactured from high-quality automotive-grade material with a durable wear-resistant finish, the side sill protectors are engineered to withstand repeated foot traffic, abrasion, moisture and temperature fluctuations. Precision-manufactured for direct OE-style installation, they fit securely to the original mounting locations, making them ideal for restoration projects or replacing worn, damaged or missing original threshold trims.

What This Product Does:
  • Protects the door threshold and side sill from scuffs and scratches.
  • Restores the original appearance of the door entry area.
  • Covers and protects painted sill surfaces from everyday wear.
  • Helps reduce damage caused by footwear and luggage.
  • Provides factory-style fitment and finish.
  • Enhances the appearance of the vehicle's interior.
  • Replaces worn, damaged or missing sill protectors.
  • Forms an essential part of the interior body trim system.

Symptoms Of Wear Or Failure:
  • Scratched, dented or worn trim.
  • Loose or poorly fitting sill protectors.
  • Cracked or damaged threshold trim.
  • Corrosion or deterioration where applicable.
  • Missing retaining clips or fixings.
  • Exposed paintwork vulnerable to damage.
  • Increased wear to the door sill area.
  • Cosmetic deterioration affecting the interior.
  • Rattling or movement when entering or exiting the vehicle.
  • Reduced originality during restoration.

Why Replacement Matters:

  • The door threshold is one of the most heavily used areas of any vehicle, being subjected to continual foot traffic, luggage movement and repeated entry and exit. Over time, the original sill protectors can become scratched, loose or damaged, reducing their ability to protect the underlying painted bodywork.
  • A worn or missing sill protector leaves the door threshold vulnerable to scuffs, scratches and corrosion, particularly on classic Porsche models where preserving the original bodywork is essential. Damaged trim can also detract from the overall appearance and value of the vehicle.
  • Replacing worn or damaged door threshold side sill protectors restores the factory finish while protecting the painted sill from further wear. The OE Match replacements provide precise OE-style fitment, premium-quality construction and long-lasting durability, making them an ideal choice for Porsche restoration, repair and preventative maintenance.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90155100030
90155111550
90155111650
90155111551
90155111651

The product you are viewing cross references to these numbers
90155911
Product Information
Product Information
Front End Cap For Wide Deco Sill / Rocker.
The OE Match Front End Cap for Wide Deco Sill / Rocker is a premium-quality replacement trim component designed to finish and protect the front section of the wide sill (rocker) moulding on compatible classic Porsche models. Manufactured to OE specifications for fit, profile and durability, these end caps provide a clean factory-style finish while protecting the exposed ends of the rocker trim from dirt, moisture and minor impact damage.  

Fits:
  • Porsche 911 1969 2.0L / 912 SWB (F)
  • Porsche 911 1969-1973 2.2L / 2.4L / 2.7L RS LWB (F)  

Diagram Ref No 28

Manufactured from high-quality automotive-grade material with excellent resistance to UV exposure, weathering and road debris, each end cap is precision-moulded to replicate the original Porsche design. Designed for direct OE-style installation, they integrate seamlessly with the wide decorative sill moulding, restoring both the appearance and functionality of the lower body trim. They are ideal for restoration projects or replacing cracked, damaged or missing original end caps.  

What This Product Does:
  • Finishes the front end of the wide rocker/sill moulding.
  • Protects the sill trim from impact and environmental damage.
  • Helps prevent dirt and moisture from entering the trim assembly.
  • Maintains the original appearance of the lower bodywork.
  • Provides secure OE-style fitment and alignment.
  • Helps stabilise the rocker moulding.
  • Replaces worn, damaged or missing front end caps.
  • Forms an integral part of the vehicle's exterior body trim system.

Symptoms Of Wear Or Failure:
  • Missing or broken end cap.
  • Cracks or impact damage.
  • Loose or poorly fitting rocker trim.
  • Faded, scratched or weathered finish.
  • Visible gaps at the front of the sill moulding.
  • Dirt and moisture collecting behind the trim.
  • Increased vibration or rattling from the rocker moulding.
  • Corrosion developing around the sill trim area.
  • Reduced originality of the vehicle's exterior.
  • Poor cosmetic appearance following restoration.

Why Replacement Matters:

  • The front rocker end caps are continually exposed to road debris, stone impacts, moisture, road salt and UV radiation. Over time, they can become brittle, cracked or detached, leaving the ends of the sill moulding exposed to contaminants and reducing the finished appearance of the vehicle.
  • A damaged or missing end cap can allow moisture and dirt to collect behind the rocker trim, increasing the risk of corrosion while also causing the moulding to loosen or vibrate. This not only detracts from the authentic appearance of a classic Porsche but can also accelerate wear of surrounding trim components.
  • Replacing worn or damaged front end caps restores the original finish of the rocker moulding while helping to protect the sill assembly from environmental damage. The OE Match replacements provide factory-style fitment, durable construction and long-lasting performance, making them the ideal solution for Porsche restoration, repair and preventative maintenance.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90155911
90155911150
90155911250

The product you are viewing cross references to these numbers
90155911
Product Information
Product Information
Rear End Cap For Wide Deco Sill / Rocker.

The OE Match Rear End Cap for Wide Deco Sill / Rocker is a premium-quality replacement trim component designed to finish and protect the rear section of the wide sill (rocker) moulding on compatible classic Porsche models. Manufactured to OE specifications for fit, profile and durability, these end caps provide a neat factory-style finish while helping to shield the ends of the rocker trim from dirt, moisture and impact damage.

Fits:

  • Porsche 911 1965-1968 2.0L / 912 SWB (F)
  • Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)  

Diagram Ref No 29

Manufactured from high-quality automotive-grade material with excellent resistance to UV exposure, weathering and road debris, each end cap is precision-moulded to replicate the original Porsche design. Designed for direct OE-style installation, they fit seamlessly with the wide decorative sill moulding, making them ideal for restoration projects or replacing damaged or missing originals.  

What This Product Does:
  • Finishes the rear end of the wide rocker/sill moulding.
  • Protects the sill trim from impact and environmental damage.
  • Helps prevent dirt and moisture from entering the trim assembly.
  • Completes the factory appearance of the lower bodywork.
  • Provides secure OE-style fitment.
  • Helps maintain correct alignment of the rocker moulding.
  • Replaces worn, damaged or missing end caps.
  • Forms an integral part of the exterior body trim system.

Symptoms Of Wear Or Failure:
  • Missing or broken end cap.
  • Cracks or impact damage.
  • Loose or poorly fitting trim.
  • Faded, scratched or weathered finish.
  • Gaps at the end of the rocker moulding.
  • Dirt and moisture entering behind the sill trim.
  • Increased vibration or rattling from the moulding.
  • Corrosion developing around the sill trim area.
  • Reduced originality of the vehicle's exterior.
  • Poor cosmetic appearance following restoration.

Why Replacement Matters:
  • The rear rocker end caps are continuously exposed to road spray, stone impacts, UV radiation and changing weather conditions. Over time, they can become cracked, worn or detached, leaving the ends of the sill moulding exposed to moisture and debris.
  • A damaged or missing end cap can allow dirt and water to accumulate behind the rocker trim, increasing the risk of corrosion while detracting from the vehicle's factory appearance. Loose trim may also vibrate during driving, potentially causing damage to surrounding bodywork or moulding components.
  • Replacing worn or damaged rear end caps restores the original finish of the rocker moulding while helping to protect the sill assembly from environmental damage. The OE Match replacements provide factory-style fitment, durable construction and long-lasting performance, making them an excellent choice for Porsche restoration, repair and preventative maintenance.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90155911
90155911350
90155911450
911287-03
911287-04

The product you are viewing cross references to these numbers
9115516
Product Information
Product Information
Protect your Porsche 911’s interior with this black rubber door threshold protector, designed to fit precisely along the side sill area to shield the inner entry sills from scuffs, scratches, and moisture while preserving the paintwork and finish. Crafted to replicate the original Porsche profile, material thickness, and texture, it provides an authentic appearance and feel - perfect for restorations or a clean, factory-style upgrade that maintains the car’s classic aesthetic.  


Fits:
Porsche 911 G-Model 1974-89
Porsche 911 (930) Turbo 1975-89

Porsche 964 Carrera 1989-94
Porsche 964 Turbo 1991-94

Porsche 993 Carrera 1994-98
Porsche 993 Turbo 1995-98

NOTE: This product also fits F-Model 911s from 1965 to 1973. However, when replacing the original chrome-metal scuff plates on these models, please be aware that some mounting holes may remain visible. The rubber version’s lip does not extend as far down as the original chrome trim. 

Diagram ref. 15.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9115516
90155111550
90155111650
90155111520
91155111900
91155161900
90155111620
91155112000
91155162000
90155111551
90155111651

The product you are viewing cross references to these numbers
90155901122/1
Product Information
Product Information
Side Sill Moulding + Rubber Seal.
The OE Match Side Sill Moulding with Rubber Seal is a premium-quality replacement exterior trim component designed to restore the original appearance and protection of the side sill on compatible classic Porsche models. Manufactured to OE specifications for fit, profile and durability, this assembly combines the decorative sill moulding with an integrated rubber seal to provide a factory-correct finish while helping protect the bodywork from dirt, moisture and road debris.  

Fits:
  • Porsche 911 1965-1968 2.0L / 912 SWB (F)
  • Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)  

Diagram Ref No 33

Manufactured from high-quality corrosion-resistant materials with a durable finish, the moulding is paired with a premium automotive-grade EPDM rubber seal that offers excellent resistance to UV exposure, ozone, moisture and temperature extremes. Precision-engineered for direct OE-style installation, this complete assembly ensures accurate fitment and is ideal for restoration projects or replacing worn, damaged or missing original trim.

What This Product Does:  
  • Restores the original appearance of the side sill.
  • Protects the sill area from road debris and moisture.
  • Provides a weather-resistant seal between the moulding and body.
  • Helps prevent dirt and water from collecting behind the trim.
  • Reduces vibration and movement of the moulding.
  • Enhances the appearance of the vehicle's lower bodywork.
  • Provides factory-style fitment and alignment.
  • Forms an integral part of the exterior body trim system.

Symptoms Of Wear Or Failure:
  • Loose or detached sill moulding.
  • Cracked, bent or damaged trim.
  • Perished, split or hardened rubber seal.
  • Moisture or dirt trapped behind the moulding.
  • Corrosion developing along the sill.
  • Rattling noises from loose trim.
  • Faded, scratched or deteriorated finish.
  • Visible gaps between the moulding and body.
  • Poor alignment or insecure fitment.
  • Reduced originality and cosmetic appearance.

Why Replacement Matters:

  • The side sill moulding and rubber seal are continually exposed to road spray, stone impacts, moisture, road salt and UV radiation. Over time, the trim can become damaged while the rubber seal may harden, crack or shrink, reducing its ability to protect the bodywork and maintain a secure fit.
  • A deteriorated moulding assembly can allow moisture and debris to accumulate behind the trim, increasing the risk of corrosion and damaging the underlying sill panel. Loose trim may also vibrate during driving and detract from the authentic appearance of a classic Porsche.
  • Replacing the side sill moulding and rubber seal restores the factory appearance, protects the bodywork from environmental damage and ensures secure OE-style fitment. The OE Match replacement provides premium-quality materials, precise construction and long-lasting durability, making it the ideal choice for restoration, repair and long-term preservation of your Porsche.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90155901122
90155901122

The product you are viewing cross references to these numbers
90155910553/1
Product Information
Product Information
Side Sill Moulding + Rubber Seal.
It is a wide type decorative sill panel with a rubber insert that was fitted to the long wheelbase Porsche 911 from 1969 through 1973. The moulding is sized to approximately 59.5″ long and fits either left or right side of the vehicle. This exterior body-trim part sits along the lower rocker (side sill) area below the doors

Fits:
Porsche 911 1969-73 (LWB)
Long Wheel Base Cars

Diagram Ref No. 25

The side sill moulding serves both aesthetic and protective roles on the vehicle’s lower bodywork:
Protects the rocker panel from minor impacts, road debris, and scrapes
 Accentuates the classic body line, contributing to the vehicle’s period-correct look
 The rubber seal helps bridge the gap between the trim and body, reducing moisture ingress behind the moulding and offering a more finished appearance
 Helps maintain authentic exterior style on restored or well-maintained classic vehicles.

Over decades on the road, original sill mouldings and seals can:
 Fade, crack, or warp
 Lose adhesion or proper fit
 Expose underlying rocker panels to corrosion or damage.

Replacing worn or missing sill trim restores the correct visual line and offers renewed protection for the lower bodywork - especially important on restored vehicles or those being prepared for show-quality presentation.

Replace this side sill moulding if:
  The original trim is missing, cracked, split, or faded
   Rubber insert has hardened or detached
   Re-assembling after bodywork or repaint
   During a body restoration or concours detailing project

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90155910553
90155910553

The product you are viewing cross references to these numbers
90155910599
Product Information
Product Information
Side Sill Moulding + Rubber Seal for ST Look or Wide body (price is EACH)

oematch

please note these are longer side sills 62inch, you will need to bend the ends so they fit snug to your wide body arches

Fits:
Porsche 911 1969-73 (LWB)
Long Wheel Base Cars ST Look

Porsche 911 1974-89 ST Look

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90155910599
90155910599

The product you are viewing cross references to these numbers
90155910552/1
Product Information
Product Information
Side Sill Moulding + Rubber Seal.

The OE Match Side Sill Moulding with Rubber Seal is a premium-quality replacement exterior trim component designed to restore the original appearance and protection of the side sill on compatible classic Porsche models. Manufactured to OE specifications for fit, profile and durability, this complete assembly combines the decorative sill moulding with an integrated rubber seal to provide a factory-correct finish while protecting the bodywork from dirt, moisture and road debris.  

Fits:

  • Porsche 911 1965-1968 2.0L / 912 SWB (F)


Diagram Ref No 25

Manufactured from high-quality corrosion-resistant materials with a premium automotive-grade EPDM rubber seal, the moulding is designed to withstand prolonged exposure to UV rays, ozone, moisture, road salt and changing temperatures. Precision-engineered for direct OE-style installation, it ensures an accurate fit and restores the clean lines of the lower bodywork, making it ideal for restoration projects or replacing worn, damaged or missing original trim.  

What This Product Does:

  • Restores the original appearance of the side sill.
  • Protects the sill area from dirt, moisture and road debris.
  • Provides a weather-resistant seal between the moulding and body.
  • Helps prevent water from becoming trapped behind the trim.
  • Reduces vibration and movement of the sill moulding.
  • Maintains correct alignment of the exterior trim.
  • Enhances the appearance of the vehicle's lower bodywork.
  • Forms an integral part of the exterior body trim system.

Symptoms Of Wear Or Failure:
  • Loose or detached sill moulding.
  • Cracked, split or hardened rubber seal.
  • Faded, scratched or damaged trim.
  • Visible gaps between the moulding and body.
  • Moisture or dirt trapped behind the trim.
  • Corrosion developing along the sill.
  • Rattling noises from loose trim.
  • Perished rubber caused by age or UV exposure.
  • Poor trim alignment.
  • Reduced originality and cosmetic appearance.

Why Replacement Matters:
  • The side sill moulding and rubber seal are constantly exposed to harsh environmental conditions, including rain, UV radiation, road debris, salt and temperature fluctuations. Over time, the trim can become damaged while the rubber seal may harden, crack or shrink, reducing its ability to protect the bodywork and maintain a secure fit.
  • A deteriorated moulding assembly can allow moisture and debris to collect behind the trim, increasing the risk of corrosion to the sill and surrounding body panels. Loose or damaged trim may also vibrate during driving, affecting both refinement and the vehicle's appearance.
  • Replacing worn or damaged side sill moulding and rubber seal restores the factory appearance while helping to protect the bodywork from corrosion and environmental damage. The OE Match replacement provides factory-style fitment, premium-quality materials and long-lasting durability, making it the ideal solution for Porsche restoration, repair and preventative maintenance.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90155910552
90155910552

The product you are viewing cross references to these numbers
Special Order item
90155910553
Product Information
Product Information
Side Sill Moulding - Fits left or right hand side
Sold each

Fits:
Porsche 911 - 1969 to 1973 (LWB)
Long Wheel Base Cars

Diagram ref no 25



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90155910553
90155910553

The product you are viewing cross references to these numbers
Special Order item
00004330532
Product Information
Product Information
Weatherstripping adhesive.
Perfect for sealing weatherstripping to door, hood, and trunk panels.

porsche 



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

00004330532
00004320438
00004320438
00004320348
99991529940

The product you are viewing cross references to these numbers
DISPLAYING 17 to 26 (of 26 products)
1 2
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About Side Sill Seals

Porsche Side Sill Seals | Design911 Rubber Weatherstrips for Body Protection & Durability

Side sill seals are essential for protecting your Porsche’s lower body panels from water, dirt, and debris. These precision-moulded rubber seals create a tight barrier along the sill and door threshold area, preventing moisture and corrosion from damaging the body structure. A proper seal also helps reduce wind noise and vibration, ensuring your Porsche remains solid, quiet, and structurally sound through every drive.

At Design911, we supply a premium range of side sill rubber seals and trim components designed for durability, flexibility, and perfect fitment. Manufactured from high-quality EPDM and UV-resistant rubber, our seals deliver long-term resistance to heat, ozone, and environmental wear. Ideal for restoration, repair, or performance detailing, these components preserve your Porsche’s bodywork integrity while enhancing comfort and refinement.

What Do Side Sill Seals Do?

Side sill seals protect the lower body sections of your Porsche, forming a secure barrier between the doors, sills, and underbody panels.

Core Functions:
• Prevent water, mud, and debris from entering the sill area or cabin.
• Reduce vibration and noise at higher speeds.
• Protect painted and structural surfaces from corrosion and impact wear.
• Maintain aerodynamic flow and visual alignment.
• Support door sealing for optimal cabin insulation.

Strong, well-fitted side sill seals ensure lasting protection for both the vehicle’s exterior finish and interior comfort.

Why Do Side Sill Seals Fail or Degrade?

Constant exposure to road spray, temperature extremes, and physical abrasion leads to gradual deterioration of sill seals over time.

Common Causes of Failure Include:
• UV and ozone damage causing hardening or cracking.
• Compression fatigue from door closing pressure.
• Accumulation of dirt or debris degrading rubber flexibility.
• Corrosion or misalignment along the sill edge.
• Age-related shrinkage or loss of sealing contact.

When side sill seals fail, water and dirt can collect inside the sill cavity — accelerating corrosion and reducing sound insulation and comfort.

Why Replace or Upgrade Your Porsche Side Sill Seals?

Replacing old or damaged sill seals restores protection and structural preservation. Upgraded rubber materials offer improved elasticity, UV resistance, and compression recovery for long-lasting sealing performance.

Key Benefits:
• Restores watertight and dustproof sealing around sills and doors.
• Prevents corrosion and moisture build-up in lower body panels.
• Reduces road noise and vibration for a smoother ride.
• Constructed from high-quality, weather-resistant rubber.
• Fits Porsche 911, 944, 968, Boxster, Cayman, and Panamera models.
• Ideal for restorations, performance detailing, or preventative maintenance.

Design911’s Porsche side sill seals are precision-engineered for perfect fitment and endurance — delivering reliable protection and premium refinement for every model.

Highlights

• Premium Porsche side sill rubber seals and trim components.
• Designed for exact fitment and long service life.
• Resistant to UV, ozone, heat, and environmental wear.
• Protects against corrosion and noise intrusion.
• Compatible with both classic and modern Porsche models.
• Perfect for restoration, maintenance, or body protection upgrades.

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