Hella 921TB Back Up Light Bulb

Hella 921TB Back Up Light Bulb

The Hella 921TB back up light bulb is a 12V incandescent replacement bulb built for exterior reverse lighting applications. With DOT approval, a wedge base, and T5 bulb type, it is a direct-fit option for many vehicles that use the W16W / W2.1x9.5d style socket.

Use this bulb when you need a reliable reverse light replacement for vehicles such as the Honda Civic, Toyota RAV4, and Nissan Altima. The Hella 921TB part number is also a common reference for drivers searching for OE-style back up light bulb fitment.

Key Features

• 12.00V incandescent back up light bulb
• DOT approved for road use
• Wedge base design for straightforward socket fitment
• T5 bulb type with 16.00W output
• Cross-reference: W16W
• Hella 921TB replacement bulb for exterior reverse lamp applications

Product Details

Hella designs and manufactures automotive lighting and electronic components with a long history in the parts industry. The 921TB back up light bulb follows that OE-style approach with a standard 12V incandescent construction and a wedge base format used across a wide range of late-model vehicles. It is listed across many fitments, including 2018-2022 Honda Civic, 2018-2022 Toyota Camry, 2019-2022 Nissan LEAF, and 2018-2022 Ram 3500 applications, making it a practical choice for reverse light service on many cars, trucks, and SUVs.

This bulb is also searched under W16W and is used in vehicles such as the Chevrolet Silverado 1500, Ford Transit Connect, and Subaru Outback where the reverse lamp uses this style of socket and wattage specification.

What It Helps Fix

• Dim, burned-out, or non-functioning reverse lights
• Failed inspection caused by an inoperative back up lamp
• Poor rear visibility when backing up at night
• Warning messages related to exterior bulb failure on equipped vehicles
• Mismatch between the original bulb specification and the replacement bulb

Installation Notes

• Verify the vehicle uses a W16W / W2.1x9.5d style back up light bulb before installation.
• Match the original bulb type, voltage, and wattage to the vehicle’s lighting requirement.
• Handle the bulb carefully during installation to avoid damage to the glass envelope.
• Confirm proper operation after installation by checking reverse lamp function.

Quality Assurance

Hella is a global automotive lighting supplier known for precision workmanship, reliability, and long-standing OE-focused engineering. The 921TB back up light bulb reflects that product approach with DOT-approved construction and standardized fitment support across a broad range of vehicles.