The underbody and sill areas of the R34 Skyline are constantly exposed to road debris, moisture, and salt, making proper sealing one of the most important aspects of long-term preservation. This genuine Nissan OEM Floor Pan Sill Side Plug Hole Cover is the correct molded rubber plug designed to seal the 20mm access hole in the 74981WB location. With a 30mm overall outer diameter, it provides a secure, flush fit that restores the factory weatherproofing and helps prevent water and contaminants from reaching vulnerable metal surfaces in the floor pan and sill structure.
Precision-molded from durable rubber, these plugs maintain flexibility and sealing performance over time while resisting heat, oil, and environmental degradation. During vehicle assembly, these holes allow access for manufacturing processes; once installed, the plugs play a critical role in corrosion prevention and underbody integrity. With up to 12 required per vehicle, replacing missing or deteriorated plugs is a simple but highly effective step in any restoration, rust-proofing project, or routine maintenance on an R34 Skyline.
At Terra Firma Automotive, we supply this genuine Nissan OEM Floor Pan Sill Side Plug Hole Cover as the authentic, direct-fit solution for R34 owners. Sourced directly from Nissan, it guarantees precise dimensions, correct material, and factory-level quality that aftermarket options cannot match. Whether you are addressing existing rust concerns, completing a full underbody refresh, or simply maintaining originality, these molded rubber covers are essential for protecting your Skyline’s structural integrity and keeping the interior and floor pans dry and clean for years to come.
- Genuine Nissan OEM Floor Pan Sill Side Plug Hole Cover for R34 Skyline
- Seals 20mm access hole in 74981WB location
- 30mm overall outer diameter for secure, flush fit
- High-quality molded rubber construction
- Prevents moisture, dirt, and road debris intrusion
- Critical for rust prevention and underbody protection
- Maintains factory sealing and structural integrity
- Ideal for restorations, rust-proofing, or maintenance
- Up to 12 plugs typically required per vehicle (sold individually)
- Durable material resists heat, oil, and aging
- Simple press-in installation with no special tools needed
- Restores clean, original underbody appearance
- Trusted OEM authenticity from Nissan
- Essential detail for complete R34 preservation
- Helps preserve resale value and long-term condition
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