Carlson Disc Brake Caliper Piston P/N:7739

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$9.99

MPN: 7739

Item Package Quantity: 1

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Carlson Disc Brake Caliper Piston P/N:7739

$9.99

Description

Keep the hydraulic clamping force moving to your brake pads with the Carlson Disc Brake Caliper Piston 7739. Inside the caliper bore, this piston is driven outward by brake-fluid pressure to press the pad against the rotor every time you hit the brakes — a corroded, pitted, or seized piston can drag, leak fluid past its seal, or cause uneven pad wear. It is cataloged for both the front and rear positions on a range of classic Mercedes-Benz and Volvo models.

Core hydraulic job: transfers fluid pressure from the caliper bore to the brake pad so it clamps the rotor.
Front and rear application: listed for front and rear caliper positions on the covered vehicles.
Signs it may need replacing: a sticking or dragging brake, fluid weeping at the caliper, or uneven pad wear can point to a scored or seized piston.
Quantity note: the listed applications call for two pistons — confirm your caliper's requirement before ordering.

Fits applications including the 1968-1969 and 1974-1978 Mercedes-Benz 230, 1975-1980 300D, 1968-1973 280SE, and 1979-1989 Volvo 244 and 245. See the Buyer's Guide tab for the full list of covered Mercedes-Benz and Volvo models.

Manufacturer's Description

Product Specs

Buyer's Guide

Interchange Part Numbers

Frequently Asked Questions

What does this disc brake caliper piston do?

When you apply the brakes, fluid pressure pushes this piston out of the caliper bore, clamping the brake pad against the rotor. It converts hydraulic pressure into the mechanical force that stops the wheel.

How do I know if my caliper piston is bad?

A brake that sticks or drags, fluid weeping around the caliper, or uneven pad wear can indicate a scored, corroded, or seized piston. Diagnose the cause before replacing, as these signs can have other sources.

Does this piston fit the front or the rear brakes?

It is cataloged for both the front and rear caliper positions on the listed Mercedes-Benz and Volvo applications. Match it to the correct caliper on your vehicle.

Which vehicles does the Carlson 7739 fit?

It fits many classic Mercedes-Benz models such as the 230, 240D, 280SE, and 300D, plus the Volvo 240, 242, 244, and 245. Check the Buyer's Guide tab for the full year and model list.

How many pistons do I need?

The listed applications call for two pistons. Confirm the count your specific caliper setup requires before ordering, since this listing quantity may differ from what your job needs.