Air Cooled VW 1958-1979 Woodruff Key for Generator Alternator Pulley 3x5x12mm N127051

1958-1979 Woodruff Key for Generator Alternator Pulley 3x5x12mm N127051 - OEM Number(s) (N127051)

Prevent pulley slippage and costly alternator or generator damage.

A missing or worn Woodruff Key can quickly lead to pulley misalignment, slippage, and severe damage to your alternator, generator, or pulley itself. This reproduction key is machined to exact factory dimensions for a direct fit. Small but essential, it ensures the pulley and fan spin securely with the shaft, keeping your VW reliable.

Fits the Following Volkswagen Models:

• Beetle, Standard 1958–1977

• Beetle, Super 1971–1979

• Bus 1958–1979

• Karmann Ghia 1958–1974

• Thing 1973–1974

• Type 3 1962–1973

Material/Finish

• Hardened steel construction

• OE-style reproduction finish

Dimensions

• 1/2" (12mm) length

• 3/16" (5mm) height

• 1/8" (3mm) width

Features/Benefits

• VW reference part number N127051

• Aligns pulley and fan with generator/alternator shaft

• Prevents slippage and protects from costly damage

• Precisely machined for factory-correct fit

• Commonly lost due to small size—keep spares on hand

• Sold individually, 1 required per Volkswagen

Because Details Matter

It’s one of the smallest parts on your VW, but its job is critical. The Woodruff Key locks pulley to shaft, allowing smooth, synchronized rotation. Without it, your charging system is at risk. Trust the correct replacement to keep your Volkswagen turning true—because details matter.

Parts We Recommend

• 

  1967-1979 Generator or Alternator Pulley 12V 043903109

• 

  1950-1979 Cooling Fan Hub Mounting Kit Generator or Alternator 111198123A

Also known under these part numbers: (For reference only)

• 707924249576
• 98-0111-B
• N127051