21SI — Cross-Reference & Replacement

10 parts replace or cross-reference 21SI. Confirm fitment for your exact vehicle, then choose the direct replacement below.

• 24V 50A Alternator, 21SI-StyleSKU · 7642$113.91
• 12V 145A Alternator, 21SI-StyleSKU · 7644$123.41
• 12V 130A Alternator, 21SI-StyleSKU · 7673$123.41
• 12V 145A Alternator, 21SI-StyleSKU · 7685$132.91
• 12V 130A Alternator, 21SI-StyleSKU · 7971$132.91
• 24V 70A Alternator, 21SI-StyleSKU · 8003$113.91
• 12V 160A Alternator, 21SI-StyleSKU · 8020$123.41
• 12V 130A Alternator, 21SI-StyleSKU · 8027$123.41
• 12V 160A Alternator, 21SI-StyleSKU · 8028$123.41
• 24V 70A Alternator, 21SI-StyleSKU · 8030$123.41

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