Scania truck taillight replacement, Scania card 420 indicator light for 420 series heavy goods vehicle, left-hand or right-hand side plastic lens signal lamp, LZ-S-077 accessory part
Scania Card 420 Series Truck Taillight: Left-Hand or Right-Hand Replacement Unit

For owners and mechanics of Scania 420 series heavy goods vehicles, sourcing a reliable and correct replacement indicator lamp is essential for road safety and compliance. This Scania card 420 taillight, identified by part number LZ-S-077, serves as a direct-fit component designed to restore full rear signalling function. Available specifically for either the left-hand side or right-hand side of the vehicle, this unit provides a practical solution when a single lamp assembly fails, avoiding the need for a full set replacement. Its plastic construction and specified service life offer a balance of durability and straightforward maintenance for commercial fleets and independent operators alike.
Features and Construction

This replacement taillight is engineered to match the fitment and electrical requirements of Scania's 420 series trucks. The construction focuses on providing a functional, compatible part that integrates seamlessly with the vehicle's existing wiring loom and mounting points.
Material and Build
The taillight is constructed from plastic, forming both the outer lens and the main housing. This material choice aligns with industry standards for vehicle lighting, providing a balance of impact resistance and light transmission necessary for clear signal visibility. The plastic components are moulded to the specifications required for the Scania 420 model, ensuring the correct shape and connection points for a secure and weather-resistant fit once installed.
Size and Practical Fit
The product is offered in two distinct styles: 'On The Left' and 'On The Right'. This orientation-specific design is crucial, as truck taillight assemblies are often not symmetrical. Selecting the correct side—left-hand or right-hand—ensures the unit will align with the vehicle's bodywork and connect properly to the designated wiring. The part number LZ-S-077 serves as the definitive identifier for ordering, helping to prevent incorrect purchases for other Scania models or vehicle sides.
Uses and Placement

This product has a clear, singular primary function: to act as a replacement indicator lamp for a specific range of commercial vehicles. Its value is realised in practical, operational scenarios common in the transport industry.
Event or Professional Use
In a fleet maintenance workshop or roadside repair scenario, this taillight enables a swift parts swap to get a vehicle back into service. A failed taillight is a common reason for a truck to fail a roadside safety inspection or be issued a prohibition notice. Having the correct LZ-S-077 part on hand allows mechanics to resolve the issue quickly, minimising vehicle downtime and ensuring the truck remains compliant with mandatory lighting regulations for commercial vehicles on public roads.
Everyday Home Use
For owner-operators or small businesses maintaining their own Scania 420 truck, this product supports proactive vehicle upkeep. Instead of sourcing a part through a main dealer, which may involve longer lead times, this readily available taillight allows the owner to perform the replacement themselves or through a local garage. This can be a more cost-effective and timely approach to general maintenance, ensuring the vehicle's lights remain fully functional between scheduled services.
Benefits and Buying Value

The value of this component lies in its specificity, compatibility, and the practical benefits it delivers to the vehicle owner or operator.
Reuse and Low Maintenance
Once installed, the taillight is designed for long-term use, with a stated service life of 10,000 hours. This rating provides an indicator of expected operational longevity under normal driving conditions. The plastic construction generally requires no ongoing maintenance beyond keeping the lens clean for optimal light output. Should the unit eventually fail, it can be replaced again using the same straightforward process, supporting the vehicle's usability over many years.
Why Choose This Product
Choosing this specific LZ-S-077 taillight over a generic or universal lamp ensures correct fitment, electrical compatibility, and reliable performance on your Scania 420. A mismatched part could lead to poor sealing, electrical faults, or incorrect light output, potentially causing further issues. This product removes that uncertainty by providing a direct, model-specific replacement. The option to select the exact side needed (left or right) further refines the purchase, delivering exactly what is required for an efficient repair with no wasted components.
