Standard Ignition Disc Brake Pad Wear Sensor PWS346
Standard Ignition Disc Brake Pad Wear Sensor PWS346 - view 2
Standard Ignition Disc Brake Pad Wear Sensor PWS346 - view 3
Standard Ignition Disc Brake Pad Wear Sensor PWS346
Standard Ignition Disc Brake Pad Wear Sensor PWS346 - view 2
Standard Ignition Disc Brake Pad Wear Sensor PWS346 - view 3

Standard Ignition Disc Brake Pad Wear Sensor P/N:PWS346

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$24.99
MPN: PWS346
Item Package Quantity: 1
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Standard Ignition Disc Brake Pad Wear Sensor P/N:PWS346
Standard Ignition Disc Brake Pad Wear Sensor P/N:PWS346
$24.99

Keep tabs on rear brake pad thickness with the Standard Ignition Disc Brake Pad Wear Sensor PWS346, a direct-fit replacement that mounts at the brake caliper on the rear axle. It drops in for the 2017-2024 Porsche 718 Boxster [All], 2017-2024 Porsche 718 Cayman [All], 2013-2016 Porsche Boxster [All], and 2014-2016 Porsche Cayman [All]. This sensor rides against the pad and completes a circuit that signals the brake wear system as the friction material thins — if a damaged or worn-out sensor is triggering a dashboard warning, this replaces it.

  • Protective sleeve: shields the wire against chafing and short circuiting.
  • Glass-reinforced plastic resin: resists extreme temperatures and environmental conditions.
  • Grommets and wire clips: included on the harness for proper mounting and routing within the chassis.
  • OE-matching connectors and terminals: provide a water-tight connection to the wire harness.

It uses a single oval female connector with two male alligator terminals and a 9 in (228.6 mm) harness. Quantity varies by application; the listed vehicles use two, so order 2 for a complete rear-axle replacement. Country of origin: Poland.

Interchange: WS546 · 98160916300

This part cross-references / interchanges with the following part numbers:

WS546, 98160916300, PWS346

Frequently Asked Questions

What does this brake pad wear sensor do?

It mounts at the caliper and completes a circuit as the pad friction material wears down, signaling the vehicle's brake wear warning system so you know the pads may need service.

Does this fit my vehicle?

It's a direct-fit rear-axle sensor for the 2017-2024 Porsche 718 Boxster, 2017-2024 718 Cayman, 2013-2016 Boxster, and 2014-2016 Cayman [All]. See the Buyer's Guide tab to confirm.

How many sensors do I need?

Quantity varies by application; the listed Porsche vehicles use two, so order 2 for a complete rear-axle replacement.

What numbers does PWS346 interchange with?

It cross-references WS546 and 98160916300.

What is the harness length and connector type?

The harness measures 9 in (228.6 mm) and uses a single oval female connector with two male alligator terminals for a water-tight connection.

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