The Story
The front left-hand sill panel is one of the most vulnerable structural body components on the Land Rover Defender. Positioned low on the vehicle and fully exposed to road debris, water, mud, and corrosive road salts, the front sill is one of the first areas to show rot, impact damage, or perforation over the long service life these Rovers are known for. Part number RTC6206 is the direct replacement for the left-hand front sill panel, engineered to restore the structural integrity and clean lines of the lower body on Defender 90, 110, and 130 variants across all chassis generations.
The sill runs along the lower section of the A-pillar to B-pillar area of the Defender, forming the lower threshold of the front door aperture and contributing to the overall rigidity of the body superstructure. When this panel corrodes or sustains damage, it can compromise door fit and alignment, allow moisture ingress into the floor area, and create a safety concern in the event of a side impact. Replacing it promptly is essential for maintaining both the cosmetic appearance and the structural soundness of your Rover.
This replacement panel is manufactured to match the original profile and dimensions of the factory sill, ensuring correct fitment and alignment with adjacent body panels, door seals, and the door aperture itself. The steel construction is consistent with the original specification and is designed for direct swap-in during a restoration or repair. This part is sold as an individual panel for the left-hand front position. For a complete sill replacement on both sides, pairing RTC6206 with the right-hand equivalent RTC6205 is recommended.
Installation is typically performed during bodywork restoration and involves cutting out the old corroded panel, preparing the mating surfaces, welding or bonding the new panel in place, and applying appropriate rust protection and sealant to the seams. Professional fitting or fabrication experience is strongly recommended, as precise panel alignment is critical to door operation and long-term weather sealing. Rust-proofing the interior of the sill cavity following installation will significantly extend the service life of the new panel.
This panel supersedes the earlier part number ALR3363, which is no longer available from Land Rover. RTC6206 is the current valid part number covering all Defender 90, 110, and 130 variants built from the earliest series through to the end of Defender Classic production.
Fits:
• Defender 90 L316 (1983 to 2016) 2.25-liter Petrol/Gas, 2.5-liter 200Tdi Diesel, 2.5-liter 300Tdi Diesel, 2.5-liter TD5 Diesel, 2.4-liter Puma TDCi Diesel
• Defender 110 L316 (1983 to 2016) 2.25-liter Petrol/Gas, 2.5-liter 200Tdi Diesel, 2.5-liter 300Tdi Diesel, 2.5-liter TD5 Diesel, 2.4-liter Puma TDCi Diesel
• Defender 130 L316 (1985 to 2016) 2.5-liter 300Tdi Diesel, 2.5-liter TD5 Diesel, 2.4-liter Puma TDCi Diesel
Part Number: RTC6206
Free shipping to the lower 48!
Supersessions ALR3363
FAQ
Does RTC6206 fit all Defender body styles including the 90, 110, and 130?
Yes. RTC6206 is the left-hand front sill panel and fits the Defender 90, 110, and 130 across all L316 chassis production from 1983 through 2016, regardless of wheelbase or cab configuration. The sill panel geometry is consistent across all three body lengths since it spans only the front door aperture section, which is the same on all variants.
What does this panel include, and does it come primed or ready to paint?
RTC6206 is supplied as a single pressed steel sill panel for the left-hand front position. It typically arrives in bare steel or with a light anti-corrosion coating and will require preparation, priming, and painting prior to or following installation. It does not include hardware, sealant, or related fixings, which should be sourced separately to complete the job correctly.
Is welding required to install this sill panel, or can it be bolted in place?
Defender sill panels are typically welded into position as part of the body structure, making this a fabrication repair rather than a straightforward bolt-on replacement. The corroded or damaged original panel is cut away, the mating surfaces are cleaned and prepared, and the new panel is clamped and welded to the surrounding metalwork. Professional bodywork experience is strongly recommended, and treating all seams and interior cavities with a rust inhibitor after installation will protect the repair for years to come.
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
The front left-hand sill panel is one of the most vulnerable structural body components on the Land Rover Defender. Positioned low on the vehicle and fully exposed to road debris, water, mud, and corrosive road salts, the front sill is one of the first areas to show rot, impact damage, or perforation over the long service life these Rovers are known for. Part number RTC6206 is the direct replacement for the left-hand front sill panel, engineered to restore the structural integrity and clean lines of the lower body on Defender 90, 110, and 130 variants across all chassis generations.
The sill runs along the lower section of the A-pillar to B-pillar area of the Defender, forming the lower threshold of the front door aperture and contributing to the overall rigidity of the body superstructure. When this panel corrodes or sustains damage, it can compromise door fit and alignment, allow moisture ingress into the floor area, and create a safety concern in the event of a side impact. Replacing it promptly is essential for maintaining both the cosmetic appearance and the structural soundness of your Rover.
This replacement panel is manufactured to match the original profile and dimensions of the factory sill, ensuring correct fitment and alignment with adjacent body panels, door seals, and the door aperture itself. The steel construction is consistent with the original specification and is designed for direct swap-in during a restoration or repair. This part is sold as an individual panel for the left-hand front position. For a complete sill replacement on both sides, pairing RTC6206 with the right-hand equivalent RTC6205 is recommended.
Installation is typically performed during bodywork restoration and involves cutting out the old corroded panel, preparing the mating surfaces, welding or bonding the new panel in place, and applying appropriate rust protection and sealant to the seams. Professional fitting or fabrication experience is strongly recommended, as precise panel alignment is critical to door operation and long-term weather sealing. Rust-proofing the interior of the sill cavity following installation will significantly extend the service life of the new panel.
This panel supersedes the earlier part number ALR3363, which is no longer available from Land Rover. RTC6206 is the current valid part number covering all Defender 90, 110, and 130 variants built from the earliest series through to the end of Defender Classic production.
Fits:
• Defender 90 L316 (1983 to 2016) 2.25-liter Petrol/Gas, 2.5-liter 200Tdi Diesel, 2.5-liter 300Tdi Diesel, 2.5-liter TD5 Diesel, 2.4-liter Puma TDCi Diesel
• Defender 110 L316 (1983 to 2016) 2.25-liter Petrol/Gas, 2.5-liter 200Tdi Diesel, 2.5-liter 300Tdi Diesel, 2.5-liter TD5 Diesel, 2.4-liter Puma TDCi Diesel
• Defender 130 L316 (1985 to 2016) 2.5-liter 300Tdi Diesel, 2.5-liter TD5 Diesel, 2.4-liter Puma TDCi Diesel
Part Number: RTC6206
Free shipping to the lower 48!
Supersessions ALR3363
FAQ
Does RTC6206 fit all Defender body styles including the 90, 110, and 130?
Yes. RTC6206 is the left-hand front sill panel and fits the Defender 90, 110, and 130 across all L316 chassis production from 1983 through 2016, regardless of wheelbase or cab configuration. The sill panel geometry is consistent across all three body lengths since it spans only the front door aperture section, which is the same on all variants.
What does this panel include, and does it come primed or ready to paint?
RTC6206 is supplied as a single pressed steel sill panel for the left-hand front position. It typically arrives in bare steel or with a light anti-corrosion coating and will require preparation, priming, and painting prior to or following installation. It does not include hardware, sealant, or related fixings, which should be sourced separately to complete the job correctly.
Is welding required to install this sill panel, or can it be bolted in place?
Defender sill panels are typically welded into position as part of the body structure, making this a fabrication repair rather than a straightforward bolt-on replacement. The corroded or damaged original panel is cut away, the mating surfaces are cleaned and prepared, and the new panel is clamped and welded to the surrounding metalwork. Professional bodywork experience is strongly recommended, and treating all seams and interior cavities with a rust inhibitor after installation will protect the repair for years to come.
