Weber 40mm IDF Dual Carburetor Kit | VW Bus, Type 4 & Porsche 914 | Dual Port (43-7347-0)

Weber 40mm IDF Dual Carburetor Kit — VW Type 2, Type 4 & Porsche 914 (43-7347-0)

Upgrade your dual-port air-cooled engine with the complete Weber 40mm IDF Dual Carburetor Kit. This bolt-on induction system replaces restrictive factory fuel delivery with genuine Weber 40 IDF carburetors for crisp throttle response and improved performance on VW Type 2, Type 4, and Porsche 914 engines.

Vehicle Fitment

• VW Type 2 (Bus): 1972–1979 (dual port)
• VW Type 4: 1972–1974 (dual port)
• Porsche 914: 1972–1975

Key Features & Benefits

• Genuine Weber 40 IDF Carburetors: Dedicated induction per cylinder pair for strong, tunable performance.
• Complete Bolt-On Kit: Everything needed to replace the factory setup in one package.
• High-Flow Filtration: Air cleaners with a high-flow gauze element.

Kit Includes

• Carburetor Linkage
• Aluminum Intake Manifolds
• Air Cleaners
• High-Flow Gauze Element
• Fuel Line
• Hardware and Gaskets

Technical Specifications

• Part Number: 43-7347-0
• Carburetor: Weber 40mm IDF (dual)
• Configuration: Dual carburetor, dual port

Frequently Asked Questions

• What's included in the kit? Carburetor linkage, aluminum intake manifolds, air cleaners, a high-flow gauze element, fuel line, and hardware and gaskets.
• Which engines does this fit? Dual-port VW Type 2 (Bus), VW Type 4, and Porsche 914 engines.

Explore Related Categories

Browse more induction upgrades in our Fuel & Intake collection, explore All VW Air-Cooled, or shop All Porsche.

Tuning & Setup Notes

A progressive or dual carburetor swap changes the fuel curve of your engine, so plan on a proper jetting check and idle/mixture sync once the kit is installed — every engine's compression, cam, and exhaust combination is a little different. We recommend a mechanical fuel pump or a regulated low-pressure electric pump sized for carburetor use, fresh fuel line rated for ethanol-blended gas, and a check of your linkage geometry before first start-up.

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.

⚠ WARNING (California Proposition 65): This product can expose you to chemicals including lead, which is 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. Parts are legal for use on pre-pollution-controlled vehicles only.