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Bosch Temperature Gauge: Reliable oil and water temperature monitoring

Bosch SP0F000049 Style Line 2" Electrical Water/Oil Temperature Gauge (Black Dial Face, Black Bezel)
4.6
[Standard 2" Dial]  Fits 2-1/16" opening; classic black dial design.
[Wide Temperature Range]  Measures 100–280°F for versatile monitoring in varied applications.
[Removable Mounting Panel]  Black bezel with removable panel for easy installation and access.
[Included Mounting Hardware]  Supplies mounting hardware and 12V internal backlighting for clear visibility.
[12V Negative Ground Only]  Designed exclusively for 12V negative-ground electrical systems.
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Automotive gauge for clear engine-fluid monitoring, the Bosch Electrical Water/Oil Temperature Gauge gives direct temperature readings for oil and coolant. Drivers and home mechanics gain reassurance from a simple, readable display that helps spot overheating early. Is compatibility with older or positive-ground vehicles a concern?

⚡ At a Glance
  • Temperature Range: 100-280 degrees Fahrenheit, suited to typical petrol engine needs
  • Best for: Classic car owners, kit-car builders and DIY mechanics seeking compact monitoring
  • Not ideal for: Vehicles with positive ground or non-12-volt electrical systems

Standard 2" black dial designed for a 2-1/16" opening with a removable mounting panel. Includes mounting hardware and 12 volt internal back lighting, and is calibrated to read 100–280°F for oil and water.


Accurate engine temperature reading - with a calibrated 100–280°F range

Calibrated across 100–280°F, the dial shows increments aligned to common operating temperatures for oil and water. The 2" black face is sized to fit a 2-1/16" dash opening for consistent gauge placement.

Quickly identify overheating or abnormal low temperatures so corrective action can be taken before damage. Clear markings make monitoring while driving straightforward.

Neat dash installation - with a removable black mounting panel and included hardware

Black bezel and removable mounting panel allow a flush fit in standard openings, while supplied mounting hardware supports a tidy, repeatable fit. Panel design conceals fixings for a finished appearance.

Fitment into the dashboard looks professional and reduces installation time, ideal for restorations and custom builds. A neat finish helps maintain interior aesthetics.

Good visibility at night - with 12 volt internal back lighting

Internal back lighting runs on 12 volt systems, illuminating the black dial for low-light readability. Lighting matches common vehicle electrical supplies for straightforward wiring.

Readings remain clear during night driving or late-night garage checks without needing extra lamps. Suits drivers who use their vehicle after dark or service vehicles in low light.

✨ The 4 Key Reasons for Bosch Electrical Water/Oil Temperature Gauge
  1. Wide 100–280°F range – Detects overheating and cold starts before engine damage occurs
  2. Standard 2" dial fit – Installs into common 2-1/16" dash openings for tidy mounting
  3. Internal 12V back lighting – Clear night-time readability without extra wiring or lamps
  4. Included mounting hardware – Ready to fit straight from the box, saves installation time
📋 Technical Details at a Glance
  • Category: Automotive gauge
  • Display: 2" black dial for a 2-1/16" opening
  • Temperature Range: 100–280°F
  • Bezel: Black bezel with removable black mounting panel
  • Backlighting: 12 volt internal back lighting
❓ Frequently Asked Questions

Q: Is the gauge compatible with positive-ground vehicles?

A: No, only suitable for 12 volt negative ground systems.

Q: What opening size is required for installation?

A: A standard 2" black dial is designed for a 2-1/16" opening.

Q: Does the gauge include lighting and mounting hardware?

A: Includes mounting hardware and 12 volt internal back lighting.

🏆 Our Verdict

The Bosch Electrical Water/Oil Temperature Gauge suits classic car owners, kit-car builders and home mechanics who need compact, reliable temperature monitoring. A clear 2" black dial, calibrated 100–280°F range and internal lighting make readings easy to check at a glance. The included mounting hardware and simple dash fit deliver practical, long-term utility for regular road and workshop use.