
DA4065N Bulkhead Upper Repair Panel LHS Britpart
The bulkhead on a Land Rover Defender or Series Rover is one of the most structurally important body assemblies on the vehicle, acting as the firewall between the engine bay and the cab while also serving as the primary mounting point for the windscreen, door hinges, and numerous interior components. Unfortunately, it is also one of the first areas to suffer from corrosion. Moisture collects in the upper corners of the bulkhead around the vent apertures, trapped behind seals and in panel folds where it cannot easily escape, and over time the steel in that area begins to thin, pit, and eventually perforate. The DA4065N from Britpart is a precision-formed steel repair panel that addresses exactly this location, covering the left hand upper section of the bulkhead and providing a sound base for welding in a clean, solid replacement for the corroded original material.
This panel is manufactured by Britpart, one of the most established names in Land Rover parts production with over 40 years of experience in the aftermarket. The DA4065N is pressed to the correct profile and includes the necessary contours and flanges to align with the surrounding bulkhead structure, making it suitable for a competent welder to fit with a good result. The steel gauge matches the original specification, ensuring that the repaired area has the correct rigidity and does not create stress points where a thicker or thinner panel would meet the parent metal. Britpart backs this panel with their standard 24-month guarantee.
This panel covers the left hand side only, which on right hand drive vehicles corresponds to the passenger side and on left hand drive vehicles corresponds to the driver side. The companion right hand side panel is available separately under part number DA4065O. Owners whose bulkhead vent surrounds are also corroded should note that a separate vented repair panel is available as DA4597N, which includes the vent aperture pressing and is suited to vehicles where the damage extends further into the vent area itself.
The DA4065N fits all Defender 90 and Defender 110 L316 models across the production run, as well as Series II, IIA, and III short wheelbase and long wheelbase models, making it one of the most broadly applicable bulkhead repair panels in the classic Land Rover catalog. Whether the Rover is being prepared for an MoT inspection, restored to a high standard, or simply kept structurally sound for continued use, this panel is the correct starting point for a lasting repair.
Fits:
Defender 90 L316 (1983 to 2016) All Engines Petrol/Gas and Diesel
Defender 110 L316 (1983 to 2016) All Engines Petrol/Gas and Diesel
Series II 88in SWB and 109in LWB (1958 to 1961) 2.25-liter Petrol/Gas and Diesel
Series IIA 88in SWB and 109in LWB (1961 to 1971) 2.25-liter Petrol/Gas and Diesel
Series III 88in SWB and 109in LWB (1971 to 1985) 2.25-liter Petrol/Gas and Diesel
Part Number: DA4065N
Free shipping to the lower 48!
No supersessions found.
[FAQ]
What area of the bulkhead does the DA4065N repair panel cover?
The DA4065N covers the upper left hand corner of the bulkhead, specifically the section surrounding and adjacent to the forward-facing vent aperture. This is the area most commonly affected by corrosion on both Defender and Series models, as moisture becomes trapped in the panel folds and behind the vent seal over many years of use. The panel is designed to be cut into the existing bulkhead to replace the corroded material, and it is pressed to match the original profile so that the surrounding structure aligns correctly once welded in place. It does not include the vent surround pressing itself; owners who need to replace the vent aperture area as well should consider the DA4597N vented repair panel instead.
Is the DA4065N specific to right hand drive or left hand drive vehicles?
The designation of left hand side and right hand side on Land Rover bulkhead panels refers to the side of the vehicle as viewed from the driver's seat, not the orientation of the steering wheel. On a right hand drive Rover, the left hand side is the passenger side. On a left hand drive Rover, the left hand side is the driver side. The DA4065N fits either configuration, as the bulkhead profile is the same regardless of drive orientation. The companion right hand side panel is sold separately as DA4065N.
Does this panel require professional welding to fit correctly?
Yes. The DA4065N is a weld-in repair panel and requires MIG or equivalent welding equipment and the skill to cut out the corroded area cleanly, trim the new panel to suit, and weld and finish it to a sound standard. It is not a bolt-on or adhesive-fit part. Owners without welding experience are advised to have the panel fitted by a body shop or specialist with experience in Land Rover restoration. The panel is designed to make the welder's job straightforward, but the quality of the finished repair depends on the preparation and welding technique applied on the day.
The bulkhead on a Land Rover Defender or Series Rover is one of the most structurally important body assemblies on the vehicle, acting as the firewall between the engine bay and the cab while also serving as the primary mounting point for the windscreen, door hinges, and numerous interior components. Unfortunately, it is also one of the first areas to suffer from corrosion. Moisture collects in the upper corners of the bulkhead around the vent apertures, trapped behind seals and in panel folds where it cannot easily escape, and over time the steel in that area begins to thin, pit, and eventually perforate. The DA4065N from Britpart is a precision-formed steel repair panel that addresses exactly this location, covering the left hand upper section of the bulkhead and providing a sound base for welding in a clean, solid replacement for the corroded original material.
This panel is manufactured by Britpart, one of the most established names in Land Rover parts production with over 40 years of experience in the aftermarket. The DA4065N is pressed to the correct profile and includes the necessary contours and flanges to align with the surrounding bulkhead structure, making it suitable for a competent welder to fit with a good result. The steel gauge matches the original specification, ensuring that the repaired area has the correct rigidity and does not create stress points where a thicker or thinner panel would meet the parent metal. Britpart backs this panel with their standard 24-month guarantee.
This panel covers the left hand side only, which on right hand drive vehicles corresponds to the passenger side and on left hand drive vehicles corresponds to the driver side. The companion right hand side panel is available separately under part number DA4065O. Owners whose bulkhead vent surrounds are also corroded should note that a separate vented repair panel is available as DA4597N, which includes the vent aperture pressing and is suited to vehicles where the damage extends further into the vent area itself.
The DA4065N fits all Defender 90 and Defender 110 L316 models across the production run, as well as Series II, IIA, and III short wheelbase and long wheelbase models, making it one of the most broadly applicable bulkhead repair panels in the classic Land Rover catalog. Whether the Rover is being prepared for an MoT inspection, restored to a high standard, or simply kept structurally sound for continued use, this panel is the correct starting point for a lasting repair.
Fits:
Defender 90 L316 (1983 to 2016) All Engines Petrol/Gas and Diesel
Defender 110 L316 (1983 to 2016) All Engines Petrol/Gas and Diesel
Series II 88in SWB and 109in LWB (1958 to 1961) 2.25-liter Petrol/Gas and Diesel
Series IIA 88in SWB and 109in LWB (1961 to 1971) 2.25-liter Petrol/Gas and Diesel
Series III 88in SWB and 109in LWB (1971 to 1985) 2.25-liter Petrol/Gas and Diesel
Part Number: DA4065N
Free shipping to the lower 48!
No supersessions found.
[FAQ]
What area of the bulkhead does the DA4065N repair panel cover?
The DA4065N covers the upper left hand corner of the bulkhead, specifically the section surrounding and adjacent to the forward-facing vent aperture. This is the area most commonly affected by corrosion on both Defender and Series models, as moisture becomes trapped in the panel folds and behind the vent seal over many years of use. The panel is designed to be cut into the existing bulkhead to replace the corroded material, and it is pressed to match the original profile so that the surrounding structure aligns correctly once welded in place. It does not include the vent surround pressing itself; owners who need to replace the vent aperture area as well should consider the DA4597N vented repair panel instead.
Is the DA4065N specific to right hand drive or left hand drive vehicles?
The designation of left hand side and right hand side on Land Rover bulkhead panels refers to the side of the vehicle as viewed from the driver's seat, not the orientation of the steering wheel. On a right hand drive Rover, the left hand side is the passenger side. On a left hand drive Rover, the left hand side is the driver side. The DA4065N fits either configuration, as the bulkhead profile is the same regardless of drive orientation. The companion right hand side panel is sold separately as DA4065N.
Does this panel require professional welding to fit correctly?
Yes. The DA4065N is a weld-in repair panel and requires MIG or equivalent welding equipment and the skill to cut out the corroded area cleanly, trim the new panel to suit, and weld and finish it to a sound standard. It is not a bolt-on or adhesive-fit part. Owners without welding experience are advised to have the panel fitted by a body shop or specialist with experience in Land Rover restoration. The panel is designed to make the welder's job straightforward, but the quality of the finished repair depends on the preparation and welding technique applied on the day.
Original: $145.91
-65%$145.91
$51.07Description
The bulkhead on a Land Rover Defender or Series Rover is one of the most structurally important body assemblies on the vehicle, acting as the firewall between the engine bay and the cab while also serving as the primary mounting point for the windscreen, door hinges, and numerous interior components. Unfortunately, it is also one of the first areas to suffer from corrosion. Moisture collects in the upper corners of the bulkhead around the vent apertures, trapped behind seals and in panel folds where it cannot easily escape, and over time the steel in that area begins to thin, pit, and eventually perforate. The DA4065N from Britpart is a precision-formed steel repair panel that addresses exactly this location, covering the left hand upper section of the bulkhead and providing a sound base for welding in a clean, solid replacement for the corroded original material.
This panel is manufactured by Britpart, one of the most established names in Land Rover parts production with over 40 years of experience in the aftermarket. The DA4065N is pressed to the correct profile and includes the necessary contours and flanges to align with the surrounding bulkhead structure, making it suitable for a competent welder to fit with a good result. The steel gauge matches the original specification, ensuring that the repaired area has the correct rigidity and does not create stress points where a thicker or thinner panel would meet the parent metal. Britpart backs this panel with their standard 24-month guarantee.
This panel covers the left hand side only, which on right hand drive vehicles corresponds to the passenger side and on left hand drive vehicles corresponds to the driver side. The companion right hand side panel is available separately under part number DA4065O. Owners whose bulkhead vent surrounds are also corroded should note that a separate vented repair panel is available as DA4597N, which includes the vent aperture pressing and is suited to vehicles where the damage extends further into the vent area itself.
The DA4065N fits all Defender 90 and Defender 110 L316 models across the production run, as well as Series II, IIA, and III short wheelbase and long wheelbase models, making it one of the most broadly applicable bulkhead repair panels in the classic Land Rover catalog. Whether the Rover is being prepared for an MoT inspection, restored to a high standard, or simply kept structurally sound for continued use, this panel is the correct starting point for a lasting repair.
Fits:
Defender 90 L316 (1983 to 2016) All Engines Petrol/Gas and Diesel
Defender 110 L316 (1983 to 2016) All Engines Petrol/Gas and Diesel
Series II 88in SWB and 109in LWB (1958 to 1961) 2.25-liter Petrol/Gas and Diesel
Series IIA 88in SWB and 109in LWB (1961 to 1971) 2.25-liter Petrol/Gas and Diesel
Series III 88in SWB and 109in LWB (1971 to 1985) 2.25-liter Petrol/Gas and Diesel
Part Number: DA4065N
Free shipping to the lower 48!
No supersessions found.
[FAQ]
What area of the bulkhead does the DA4065N repair panel cover?
The DA4065N covers the upper left hand corner of the bulkhead, specifically the section surrounding and adjacent to the forward-facing vent aperture. This is the area most commonly affected by corrosion on both Defender and Series models, as moisture becomes trapped in the panel folds and behind the vent seal over many years of use. The panel is designed to be cut into the existing bulkhead to replace the corroded material, and it is pressed to match the original profile so that the surrounding structure aligns correctly once welded in place. It does not include the vent surround pressing itself; owners who need to replace the vent aperture area as well should consider the DA4597N vented repair panel instead.
Is the DA4065N specific to right hand drive or left hand drive vehicles?
The designation of left hand side and right hand side on Land Rover bulkhead panels refers to the side of the vehicle as viewed from the driver's seat, not the orientation of the steering wheel. On a right hand drive Rover, the left hand side is the passenger side. On a left hand drive Rover, the left hand side is the driver side. The DA4065N fits either configuration, as the bulkhead profile is the same regardless of drive orientation. The companion right hand side panel is sold separately as DA4065N.
Does this panel require professional welding to fit correctly?
Yes. The DA4065N is a weld-in repair panel and requires MIG or equivalent welding equipment and the skill to cut out the corroded area cleanly, trim the new panel to suit, and weld and finish it to a sound standard. It is not a bolt-on or adhesive-fit part. Owners without welding experience are advised to have the panel fitted by a body shop or specialist with experience in Land Rover restoration. The panel is designed to make the welder's job straightforward, but the quality of the finished repair depends on the preparation and welding technique applied on the day.




















