Stewart Warner Deluxe Voltmeter 2-1/16" 10-16V - 82309
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The Stewart Warner 82309 Deluxe Voltmeter is a 12V electrical analog gauge designed to monitor battery and charging-system voltage in compatible automotive, fleet, heavy-duty equipment, industrial, and protected dashboard applications. It uses Stewart Warner's classic Deluxe styling with a black face, white pointer, white markings, and polished stainless steel bezel.
This gauge displays system voltage across a 10–16V DC range and fits a standard 2-1/16 in. / 52 mm instrument opening.
Key Features
- Stewart Warner Deluxe Series voltmeter.
- Part number: 82309.
- Common catalog formatting: SWA82309 and SWW-82309.
- Gauge type: electrical voltmeter.
- Scale range: 10–16V DC.
- Sweep style: 90° short sweep.
- Gauge diameter: 2-1/16 in. / 52 mm.
- Black face with white pointer and white graphics.
- Polished stainless steel bezel.
- Plated steel case construction.
- Rear connections: #8-32 threaded studs.
- Integrated 12V light kit for backlighting.
- 24V bulb options may be available separately where required.
- Operating temperature reference: -40°C to +85°C.
- Front-sealed IP66-style construction with dust-resistant rear design.
Application Compatibility
Common application context includes 12V DC instrument panels where a 2-1/16 in. voltmeter is required, including:
- Automotive dashboards.
- Heavy-duty truck and fleet panels.
- Industrial equipment instrument clusters.
- Generator, utility, and service-equipment panels.
- Custom hot rod and restoration dashboards.
- Protected helm or equipment panels where plated steel construction is suitable.
- Matching Stewart Warner Deluxe Series gauge layouts.
Use this voltmeter only where the system voltage, panel cutout, rear clearance, terminal layout, lighting circuit, and environmental exposure match the installation.
Fitment Notice
Confirm compatibility by system voltage, dash opening, mounting depth, terminal clearance, panel exposure, and lighting voltage before ordering. The 82309 uses a plated steel case and polished stainless steel bezel, making it different from the brass-cased marine-specific Deluxe Marine 82112 voltmeter. For exposed saltwater helm installations, confirm whether the marine brass-case version is the better match.
When This Product Needs Replacement
Replace the voltmeter if the needle sticks, reads incorrectly against a known-good multimeter, has failed illumination, corroded terminals, a cracked lens, damaged bezel, water intrusion, or intermittent readings caused by internal gauge failure. Before replacing the gauge, inspect battery voltage, alternator output, ignition feed, ground quality, and panel wiring.
Installation Notes
Disconnect battery power before working behind the panel. Mount the gauge in a clean 2-1/16 in. opening and secure it with the proper bracket and hardware. Connect the positive, ground, and lighting terminals according to the Stewart Warner wiring instructions.
For accurate readings, use clean terminals and a solid ground path. After installation, compare the gauge reading against a digital multimeter at the battery and at the gauge feed. A large difference usually points to voltage drop, poor grounding, or wiring resistance rather than a gauge problem.
Alternate / Cross-Reference Part Numbers
- Stewart Warner 82309 — manufacturer part number
- SWA82309 — common catalog/reference formatting
- SWW-82309 — common performance catalog formatting
- STW82309 — industrial catalog formatting
- Stewart Warner Deluxe Voltmeter — product description reference
- Stewart Warner 82112 — related marine brass-case Deluxe Marine voltmeter reference; verify environment and panel requirements before substitution
Parts Desk Insight
The key difference between 82309 and the marine 82112 is construction. Both are 10–16V Deluxe-style voltmeters, but the 82309 is aimed more at automotive, fleet, and equipment panels with a plated steel case, while the 82112 is the better match when a brass marine case is required. For any voltmeter replacement, check voltage at the gauge before replacing the instrument.
Shipping: Ships same or next day for fast Canada wide shipping. ⚓
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.