HELLA 2026BULK Cab Marker Light Amber LED 12 or 24V Pack of 4

HELLA 2026BULK Cab Marker Light Amber LED 12 or 24V Pack of 4

ADR 6/00 Category 5 compliant amber LED cab marker lights in a pack of 4, featuring a stealth clear-until-illuminated lens, fully sealed IP67 construction, and 5-year warranty — purpose-built for trucks, semi-trailers, and heavy commercial vehicles requiring compliant cab and roof marker illumination across 8–28V electrical systems.

Product Overview

The HELLA 2026BULK is a bulk pack of four amber LED cab marker lights delivering ADR 6/00 Category 5 compliant cab and roof marker illumination for trucks, semi-trailers, and heavy commercial vehicles. Cab marker lights serve a distinct function from side and front marker lamps — mounted along the roofline or cab upper structure, they indicate the overall width and height profile of the vehicle to oncoming traffic and other road users, a legal requirement for heavy vehicles exceeding specific width thresholds under Australian road regulations. The 2026BULK features HELLA's stealth clear-until-illuminated optical design, where the lens appears completely clear and uncoloured when the light is off, only revealing its amber illumination when powered on. This provides a clean, modern cab appearance during daylight hours while delivering bright, compliant amber cab marker output when required — a premium aesthetic widely specified for new truck builds and fleet refurbishment projects. The compact 60 x 38 x 32mm surface mount body shares the same footprint as other HELLA marker lamps in the range, allowing consistent installation across multiple marker light applications on the same vehicle using uniform mounting hardware. Each light is fully sealed to IP67 against dust and moisture ingress, and the pre-wired connector simplifies wiring into the cab roof loom or upper body wiring circuit. HELLA's five-year warranty provides long-term confidence for fleet operators, truck manufacturers, and transport companies. Universal 8–28V input ensures compatibility with both 12V and 24V heavy vehicle electrical systems in a single unit.

Features & Benefits

Clear-Until-Illuminated Stealth Lens — The lens appears completely clear and uncoloured when the light is off, providing a clean and modern cab profile during daylight. When powered, the optics produce bright amber cab marker illumination — a premium stealth finish widely specified for modern truck builds and fleet refurbishments.

ADR 6/00 Category 5 Compliant — Meets Australian Design Rule 6/00 Category 5 for direction indicator lamps and marker lamps on heavy vehicles, confirming the 2026BULK is road-legal for cab and roof marker applications on trucks and trailers operating on Australian roads.

Amber LED Light Output — Delivers bright amber cab marker illumination with maintenance-free LED technology, providing a significantly longer operational lifespan than incandescent cab marker alternatives and reducing fleet maintenance and replacement costs.

Fully Sealed IP67 — Fully dust-tight and protected against temporary water immersion, providing robust moisture and ingress protection for the exposed roofline and upper cab environments subject to rain, road spray, and washdown.

Pack of 4 — Bulk pack of four cab marker lights simplifies procurement for truck builds, fleet fit-outs, and trailer refurbishments requiring multiple units across the cab or roofline in a single purchase.

Surface Mount Design — Compact surface mount installation fits cleanly onto cab rooflines, upper body panels, and trailer front structures without excessive protrusion, maintaining a streamlined vehicle profile.

Pre-Wired Connector — Factory-fitted pre-wired connector eliminates the need for additional connectors at the light unit, simplifying connection into the cab roof wiring loom or upper body circuit.

8–28V Universal Input — Single light unit compatible with both 12V and 24V heavy vehicle electrical systems, covering the full range of truck and trailer electrical configurations without requiring separate voltage variants.

HELLA 5-Year Warranty — Backed by HELLA's five-year warranty, providing long-term confidence for fleet operators, truck manufacturers, and transport companies specifying quality lighting for extended service life.

Technical Specs

Compatible With / Goes Well With

The HELLA 2026BULK is suited to any 12V or 24V truck, semi-trailer, or heavy commercial vehicle requiring ADR-compliant LED cab and roof marker lighting. Primary applications include prime movers and semi-trailers requiring roofline cab marker compliance, rigid trucks and bus bodies with upper cab marker requirements, curtainsider and refrigerated trailers with front cab or roof marker fitment, car carriers and high-deck trailers, livestock trailers and coach builders, and any heavy vehicle exceeding width thresholds that triggers a legal cab marker light requirement under Australian road rules.

Pairs well with the HELLA 2051BULK amber front marker pack, 2053BULK red/amber side marker pack, and 2054BULK clear front marker pack for a complete matched HELLA truck and trailer marker lighting solution, LED rear combination lamps, trailer wiring looms and junction boxes, and waterproof cable connectors and heat-shrink terminals for sealed roofline wiring installations.

Frequently Asked Questions

What is the purpose of cab marker lights and when are they legally required?

Cab marker lights are mounted along the upper roofline or cab structure of heavy vehicles to indicate the vehicle's overall width and height profile to oncoming traffic and other road users. Under Australian road regulations, vehicles exceeding certain width thresholds are legally required to fit cab or clearance marker lights. ADR 6/00 Category 5 compliance on the 2026BULK confirms it meets the prescribed requirements for this application. Consult the relevant state or territory heavy vehicle regulations to confirm the specific width and vehicle type thresholds applicable to your vehicle.

What does "clear until illuminated" mean on the 2026BULK lens?

The 2026BULK uses a stealth optical design where the lens appears completely clear and uncoloured when the light is off, giving the cab roofline a clean and modern appearance during daylight. When powered on, the LED optics produce bright amber cab marker illumination through the clear lens. This finish is popular with fleet operators and truck builders seeking a polished, uncluttered vehicle appearance without compromising compliant amber cab marker output.

How does the 2026BULK differ from the HELLA 2051BULK front marker pack?

Both packs share the same body dimensions, clear-until-illuminated amber LED output, IP67 rating, surface mount design, and 5-year warranty. The key difference is the compliance standard and intended application — the 2026BULK is ADR 6/00 Category 5 compliant for cab and roof marker lamp applications, while the 2051BULK is ADR 49/00 compliant for front position and outline lamp applications. Always select the appropriate part for the specific lighting function required to ensure ADR compliance for your vehicle type.

Can these cab marker lights be used on both 12V and 24V vehicles?

Yes. The 2026BULK operates across an 8–28V input range, making it fully compatible with both 12V light commercial vehicle electrical systems and standard 24V heavy truck and trailer systems. A single light unit works across both voltages without modification, making the bulk pack suitable for workshop and fleet use across mixed vehicle types.

How many cab marker lights are typically required per vehicle?

The number of cab marker lights required depends on the vehicle type, width, and applicable state or territory regulations. Most prime movers and wide-body trailers are commonly fitted with three to five cab marker lights evenly spaced across the roofline or cab upper structure. The 2026BULK pack of four provides a convenient quantity for standard installations, though additional packs may be required for larger configurations. Consult the applicable heavy vehicle standards or a qualified vehicle inspector to confirm the correct number and spacing for your specific vehicle.