Alternator illustration – not the actual part
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Alternator illustration – not the actual partDiesel Parts Direct logo

Aftermarket parts may appear slightly different, including the packaging.

AccessoriesStarters and Alternators12V 61A and Above

DS-9X-6796 Alternator For 21SI Caterpillar Diesel Engines

(12V, 130A, Internal Regulator, External Fan)

OEM #: 9X6796SKU: DS9X6796
$442.53 $502.88

Taxes and Shipping are calculated at checkout

Special Order Item - not eligible for return

This high quality aftermarket alternator can be used on Caterpillar engines and is guaranteed to meet OEM specifications.

SKU DS9X6796
OEM Number 9X6796
Part Type Alternators
OEM Brand CATERPILLAR

Aftermarket warranty

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Genuine Caterpillar parts warranty

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  • Orders are processed the same or next business day
  • Expedited shipping options available at Checkout
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Call any of our friendly Parts Dept. Specialists with your engine serial number, and we can quickly verify whether this part is the correct part for your engine — no guesswork.

Phone: 888.687.0539

Don't know how to find your engine serial number? Go to our Engine Help Center for assistance.