PMO Venturi Set 40mm x 38mm (6pcs) — Brass, 6-Piece Set | Porsche 911 (1965-1989) (PM-O180-5)

The Venturi Set 40mm x 38mm (6pcs) is a genuine PMO (Performance Machined Originals) component for the air-cooled Porsche 911 — the same precision parts trusted on show engines and race motors. Part number PM-O180-5. Imported.

• Genuine PMO / Performance Machined Originals manufacture
• Engineered for PMO and Weber carbureted air-cooled Porsche 911 induction
• Brass, 6-Piece Set
• Sold and shipped by an authorized PMO dealer

Fitment: Fits air-cooled Porsche 911 (1965–1989) running PMO or Weber carburetion. Confirmed: Porsche 911. If you are unsure of your carburetor size or setup, contact us with your engine build before ordering.

Specifications:

• Part number: PM-O180-5
• Manufacturer: PMO (Performance Machined Originals)
• Boxed dimensions: 8 x 6 x 2 in
• Shipping weight: 0.724 lb
• Origin: Imported

Questions & Answers

Does this fit my Porsche? Fits air-cooled Porsche 911 (1965–1989) running PMO or Weber carburetion.

What is the part number? This is PMO PM-O180-5.

Are you an authorized dealer? Yes — Washburn's Metal is an authorized PMO dealer, so this is a genuine PMO part, not a copy.

How does it ship? Standard ground from our Orange, California shop; no hazmat restrictions on this item.

Quick spec: Genuine PMO Venturi Set 40mm x 38mm (6pcs) (PM-O180-5), Brass, 6-Piece Set, for air-cooled Porsche 911 carbureted induction.

⚠ California Proposition 65 Warning: This product can expose you to chemicals including lead, known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Tuning Notes

Venturi size is one of the primary levers for matching PMO or Weber carburetors to a specific engine's displacement and cam profile — going too large can hurt off-idle response and too small can restrict top-end breathing. If you are not certain which venturi size your current jetting was built around, check your carburetor tag or reach out with your engine specs before ordering, since venturis are a precision fit item and are not typically returnable once installed.

The Washburn's Metal Difference

Washburn's Metal is a family-run air-cooled VW & Porsche specialist shop — every part we sell is inspected before it ships, and our team is on hand by phone or email if you have a fitment question before or after you order. We stand behind what we sell: if a part doesn't fit as described, reach out and we'll make it right.