EMPI 40mm HPMX Dual Carburetor Kit — Type 2/4 & 914 Dual Port | VW Bus, Type 4 & Porsche 914 (47-7347-0)

Weber IDF performance without the Weber price. The EMPI 40mm HPMX Dual Carburetor Kit (47-7347-0) is the bolt-on induction upgrade for your Type 2/4 & 914 engine, built on EMPI's IDF-pattern HPMX carburetor — same 40/44mm bore, same tuning parts, direct Weber IDF interchange for jets and accelerator components. A dual-carb setup for serious, even breathing across the engine.

Why builders pick HPMX

• Genuine EMPI 40mm HPMX carburetors — IDF-pattern casting that accepts standard Weber IDF jets, emulsion tubes, and pump parts, so tuning is easy and cheap.
• Complete bolt-on kit — includes both carburetors, matched intake manifolds, chrome air cleaners, linkage, fuel line, and hardware.
• Even fueling, crisp throttle — a dedicated venturi setup wakes up mid-range and top-end over a tired stock center-mount carb.
• Direct Weber IDF interchange — jets and tuning parts cross straight over, so you're never hunting for oddball components.

Fitment

Confirmed fit (complete bolt-on kit) for dual-port engines in:

• 914 — 1970-1976
• Transporter (Type 4, 1.7-1.8L) — 1972-1974
• 411/412 (Type 4) — 1971-1974

Built for dual-port cylinder heads. Confirm your heads are dual-port before ordering; the HPMX re-jets easily for a hotter cam or larger displacement.

Specifications

• Part number: 47-7347-0
• Carburetor: EMPI 40mm HPMX (IDF-pattern), matched pair
• Configuration: Dual carburetor, dual port
• Air cleaners: chrome air cleaners
• Shipping weight: 20.3 lb · Boxed: 31 x 11 x 9 in
• UPC: 707924281644

Common questions

• Does it use Weber IDF jets? Yes — HPMX is IDF-pattern and accepts standard Weber 40 IDF jets and tuning parts.
• Is this a complete kit? Yes — a matched pair of HPMX carburetors, manifolds, chrome air cleaners, linkage, fuel line, and hardware are included. You supply fuel delivery (a 3–4 psi regulated low-pressure pump is recommended) and jetting for your build.
• What's the part number? EMPI 47-7347-0 (UPC 707924281644).
• Are you an authorized dealer? Yes — Washburn's Metal is an authorized EMPI dealer.

⚠ 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.