Proform 141-123 Tall Vacuum Advance Distributor
Proform 141-123 distributor with tall vacuum canister for small block Chevy engines. Mechanical and vacuum advance for precise spark control in spark-ignition systems. Fits HTS 8511.30.00.40 distributor specifications.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If mechanical advance mechanism only
Isolated advance weights/springs classify as transmission shafts/pulleys.
If cut-out switch components
Separate ignition cut-out mechanisms are 'other parts' of 8511.
If speedometer drive included
Distributors with integrated mechanical speed sensors shift to tachometer classification.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Specify vacuum advance curve specs in technical data for classification accuracy
• Mechanical distributors require shaft/gear material documentation
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