
Brake reducing valve for Volvo Amazon 1969-70, 1800
Amazon, 1800, 140, 164
- Position:
- Left and right
- Engine:
- B16, B18, B20
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A leak in the early single-circuit cylinder meant total pressure loss and brake failure – that is exactly the weakness this dual-circuit solution from Wagner addresses on the B18 cars. The circuit split lets a front or rear circuit retain braking action even if the other springs a leak, which is clearly noticeable when restoring an older 1800 still running with the original system.

Amazon, 1800, 140, 164




1800

Amazon, 1800

239

Amazon, 1800, 140, 164


232

PV 444, PV 544, Amazon, 1800, 240, 260

Amazon, 1800


237



Amazon, 1800


Amazon, 1800, 140, 164

Amazon, 1800, 164


Amazon, 1800, 140, 240, 260, 740, 780, 760, 960, 940, 850, V70, XC70, S70, S40, V40, S80

PV 444, PV 544, Amazon, 1800, 164

PV 544, Duett, Amazon, 1800, 164
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This group brings together master cylinders in dual-circuit design along with surrounding parts for the installation. The selection includes copper washers for the connectors, clevis pins and nuts for mounting, plus a strainer, plastilube and grease for the gasket and piston seal. During the swap, leakage around the connectors, a worn piston seal and corroded brake pipe threads are typical inspection points – the copper washers are single-use parts and should always be replaced when disconnected.