Sierra 82303P Diesel Magnetic Pickup Tachometer, 3 Inch, 0-3500 RPM, 90-180 Teeth

The Sierra 82303P is a 3 inch electric tachometer built for diesel engines using a magnetic pickup sender. It reads engine speed across a 0-3500 RPM range and is designed to work with magnetic pickup senders in the 90-180 teeth range, matching the tooth count of the diesel flywheel or drive plate it is paired with. As a magnetic pickup tachometer, the 82303P reads engine RPM directly from the pulses generated by the pickup sender rather than from an alternator or points signal, which makes it suited to diesel powerplants that do not generate a standard tach signal on their own.

The gauge is built into a 3 inch housing sized to match standard helm gauge cutouts, so it drops into existing diesel-tach openings without modification. It is intended for use on diesel-powered boats where the helm calls for direct, panel-mounted RPM readout paired with a compatible magnetic pickup sender.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 82303P
• Product Type: Diesel Magnetic Pickup Tachometer
• Gauge Diameter: 3 inches
• RPM Range: 0-3500 RPM
• Sender Compatibility: 90-180 teeth magnetic pickup
• Sender Requirement: Requires "B" designation
• Material: Nylon housing
• Item Package Dimensions: 4.5 inches L x 6.0 inches W x 8.0 inches H
• Weight: 0.7 pounds
• Country of Origin: United States
• UPC: 731957351364

Fitment

Diesel engines equipped with a magnetic pickup sender in the 90-180 teeth range and a "B" designation sender configuration.

Replaces (OEM)

No OEM cross-reference numbers are specified for this part.

Frequently Asked Questions

What engines is the Sierra 82303P tachometer designed for? The Sierra 82303P is designed for diesel engines that use a magnetic pickup sender, reading engine speed from 0 to 3500 RPM.

What size is the 82303P gauge? It is a 3 inch diameter gauge, sized to fit standard 3 inch helm gauge cutouts.

What RPM range does the 82303P tachometer read? The gauge reads from 0 to 3500 RPM, part number 82303P.

What sender is compatible with the 82303P? The 82303P is compatible with a magnetic pickup sender in the 90 to 180 teeth range.

Does the 82303P require a specific sender configuration? Yes, the Sierra 82303P requires a "B" designation sender configuration to operate correctly.

Is the 82303P an electric or mechanical tachometer? It is an electric tachometer, driven by pulses from a magnetic pickup sender rather than a mechanical cable.

What is the 82303P housing made of? The 82303P tachometer has a nylon housing.

How much does the Sierra 82303P weigh? The 82303P weighs 0.7 pounds.

What are the package dimensions of the 82303P tachometer? The item ships in a package measuring 4.5 inches long by 6.0 inches wide by 8.0 inches high.

Where is the Sierra 82303P made? The 82303P tachometer's country of origin is the United States.

Can the 82303P be used with a gas outboard engine? No, the 82303P is built for diesel engines using a magnetic pickup sender in the 90-180 teeth range; it is not the gas outboard tachometer variant.

What does "magnetic pickup" mean for this tachometer? It means the 82303P reads engine RPM from pulses generated by a magnetic pickup sender mounted near the flywheel or drive plate teeth, rather than from an alternator signal.