ATC50000 7-Piece Inspection Sight Glass Kit – Sizes #4 to #12 with Adapters

ATC50000 Inspection Sight Glass Kit,  is a precision-machined viewing port designed for high-visibility, in-line diagnostics of fluids (Diesel Fuel) in heavy-duty equipment. Allowing for easy visual confirmation of flow and air in fuel. This kit includes sight glasses in sizes #4, #6, #8, #10, #12 (with included adapters) all housed in a durable carrying case—giving technicians a ready-to-go solution for multiple Fuel Line sizes.

Each sight glass features a 45° flare design which enhances visibility and allows for easier reading from various angles—ideal for observing oil, fuel, coolant or other fluids in field or shop environments. The sizes included cover a broad range of applications, making this kit especially valuable for engine rebuilders, heavy-duty service technicians, remanufacturers, and maintenance professionals.

Key Features & Benefits

• Includes sizes: #4 (¼″), #6 (⅜″), #8 (½″), #10 (⅝″) and #12 (¾″) via adapters.

• 45° flared glass design enhances visibility and safe fluid diagnostics

• Supplied in a rugged carrying case for organized transport and storage.

• Serves multiple mounting thread sizes, providing the most common fuel line sizes

• Improves shop efficiency by providing quick access to proper sight glass size for varied equipment.