EMPI Main Jet for HPMX / IDF / IDA / DCOE Carburetors — 1.90mm calibrated brass | Porsche 914 (1970-1976) (43-5317-0)

There is a moment near the top of the rev range where a properly jetted engine keeps pulling and a lean one falls flat, and the whole difference lives in one brass orifice. This genuine EMPI 1.90mm main jet meters the high-speed circuit of your HPMX, IDF, IDA, or DCOE, setting the fuel curve from cruise to wide-open throttle.

• Genuine EMPI calibrated main jet, 1.90mm orifice, sold individually
• Meters fuel through the main high-speed circuit at cruise and wide-open throttle
• Fits 40/44 HPMX, Weber 40/44/48 IDF, 48 IDA, EPC 48/51, and Dellorto DCO/DCOE
• Machined brass body with a precision-drilled orifice for repeatable flow
• Size up to richen a lean top end, size down to lean out a rich mixture

Fitment: Fits EMPI 40/44 HPMX, Weber 40/44/48 IDF and 48 IDA, EPC 48/51, and Dellorto DCO/DCOE carburetors, including those on the 1970-1976 Porsche 914. If you are unsure this fits your car, contact us with your year and model before ordering.

Specifications:

• Part number: 43-5317-0
• Manufacturer: EMPI
• Boxed dimensions: 2 x 1 x 1 in
• Shipping weight: 0.024 lb

Questions & Answers

Does this fit my Porsche? Fits 40/44 HPMX, Weber 40/44/48 IDF, 48 IDA, EPC 48/51, and Dellorto DCO/DCOE carbs, including the 1970-1976 Porsche 914.

What is this part? A genuine EMPI 1.90mm main jet — the brass metering jet that controls fuel flow through the carburetor's main high-speed circuit.

What is the part number? EMPI part number 43-5317-0, a calibrated 1.90mm main jet sold individually; grab the sizes on either side to bracket your tune.

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

How does it ship? ships standard ground from our Orange, California shop

⚠ California Proposition 65 Warning: This product can expose you to chemicals 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.