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Airtex 4V1066 Distributor Vacuum Advance Unit

(Dodge Charger 1974-78, Challenger 1974, Dart 1974-76, Ramcharger 1974-90, Magnum 1978-79, D150 1977-90, W250 1981-90, W150 1977-90 + 59 more models)

Manufacturer

Picture for manufacturer Airtex Automotive Division

Part Number

4V1066
12 reviews
Sale Price

$33.01

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Product Details

The Airtex 4V1066 is a direct-fit replacement distributor vacuum advance unit designed to restore proper ignition timing advance on classic vehicles equipped with point-style distributors. The vacuum advance canister connects to the distributor breaker plate and uses engine vacuum to advance ignition timing under light-to-moderate throttle conditions, improving fuel economy and throttle response.

When manifold or ported vacuum is applied to the canister, the diaphragm inside the unit pulls the breaker plate to advance timing beyond the mechanical advance curve. As engine load increases and vacuum drops, timing returns to its base setting — helping prevent detonation under heavy throttle.

Key Features:

  • Direct replacement for original equipment vacuum advance canister
  • Restores correct ignition timing advance characteristics
  • Precision-calibrated diaphragm for accurate vacuum response
  • Durable construction for long service life
  • Compatible with Chrysler, Dodge, and Plymouth point-style distributors

Cross-Reference Part Numbers:

  • Chrysler OEM: 3755474
  • ACDelco: 12338254, 19162141, C1314, C1387
  • BWD: V345
  • Echlin / NAPA: VC3032
  • Duralast: CV3032
  • CARQUEST Premium by Wells: 57-7512
  • KEM: VC229

Airtex is headquartered in Fairfield, IL, and holds multiple quality certifications including ISO/TS 16949 and ISO 14001, ensuring consistent manufacturing standards across their ignition product line.

Products specifications

Fits

Dodge Charger 1974-78, Challenger 1974, Dart 1974-76, Ramcharger 1974-90, Magnum 1978-79, D150 1977-90, W250 1981-90, W150 1977-90, Coronet 1974-76, D250 1981-90, D100 1975-79, 1986-89, D100 Pickup 1974-79, 1986-89, B250 1981-90 + 54 more models

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Great price,fast shipping, will buy from again. Thanks

Great Clutch kit I got, did have to contact customer sevice to see if my item shipped but was very nice about it. I would do business with them again. Item shipped quickly. Great price to.

great price and extremely fast shipping.<br><br>thank you

Great

thanks, didn't know these are rare

Ordered a cover for my Jeep. Price was extemely fair and shipped the next morning. Plus I like the variety of products that they have.

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