Multiquip 1G91105203 Breather Valve Complete

The Multiquip 1G91105203 is a genuine OEM Breather Valve Complete designed for DA7000SSA2, DA7000SSA2GH, DAC7000SS, DAC7000SSW, DAC7000SSA, DLW400ES, and DLW300ES series diesel generators and arc welders. As a direct Multiquip OEM part, 1G91105203 is manufactured to the same specification as the original component, ensuring a correct installation without modification. This valve is a critical engine component — replacing a worn or failed breather valve promptly protects the engine and keeps your equipment running at full capacity. DHS Equipment stocks genuine Multiquip parts so you can get back to work with confidence.

Key Features

• Genuine OEM Crankcase Sealing Integrity — Manufactured to exact Multiquip OEM specification, maintaining correct crankcase pressure balance and preventing oil contamination in the breather circuit.
• Direct-Fit Installation — Engineered to match the original breather valve mounting points and port dimensions on compatible Multiquip engines, allowing straightforward bolt-in replacement.
• Broad Series Compatibility — Fits DA7000SSA2, DA7000SSA2GH, DAC7000SS, DAC7000SSW, DAC7000SSA, DLW400ES, and DLW300ES series units; verify your model before ordering.
• Engine Health Protection — A functioning breather valve prevents excessive crankcase pressure buildup that can force oil past seals, cause blue exhaust smoke, and accelerate internal engine wear.
• Fuel and Emissions System Safety — A properly seated breather valve keeps crankcase vapors properly routed, reducing the risk of uncontrolled vapor discharge in enclosed or sensitive work environments.

A breather valve — also called a crankcase breather or PCV-style valve — regulates pressure inside the engine crankcase by venting combustion blow-by gases in a controlled manner. Without it, pressure builds up inside the crankcase, forcing oil past gaskets and seals and leading to oil leaks, increased oil consumption, and premature wear on internal components. When the breather valve sticks, clogs, or cracks, you may notice oil leaks around seals, excessive smoke from the exhaust, or rough idle behavior — all signs that the valve needs to be replaced to restore proper engine function.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

Why Buy From DHS Equipment

Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.

Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.