How do I confirm pilotpart383018 fits my machine?

Compare the OEM or reference part number, machine model, engine model, and serial number. You can also submit a fitment inquiry before ordering.

In Stock

New Alternator High Output 255 AMP Replacement For Chevy Chevrolet C Silverado Truck Van Isuzu Hummer Saab 6.0L 6.6L 8.1L 99-15 10464405 10464443 10464453 10464456 10464476 15263859 19151921 19244751

For GMC Alternator

Alternator 15263859 for GMC V8 5.3L Engine

OEM / REF: 15263859SKU: pilotpart383018

New Alternator High Output 255 AMP Replacement For Chevy Chevrolet C Silverado Truck Van Isuzu Hummer Saab 6.0L 6.6L 8.1L 99-15 10464405 10464443 10464453 10464456 10464476 15263859 19151921 19244751 is a Alternator replacement part indexed for Part Number and SAAB 9-7x · V8 5.3L · 2005-2006, with 3 application reco...

Stock: In stock
Condition: New
Fitment: GMC Engine Spare Parts
Category: Alternator

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$245.10USD/EA

~~$31,599.00~~Save 99%

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Oct 23 – Oct 30
10	Oct 21 – Oct 28
50	Oct 19 – Oct 26

Estimates from today; confirm exact lead time before payment.

Quantity

Confirm fitment before ordering →

Lead times can vary by freight route and customs. Contact support for expedited shipping.

Alternator Description

This Alternator is indexed for Part Number; SAAB 9-7x · V8 5.3L · 2005-2006; ISUZU Ascender · V8 5.3L · 2003-2006; GMC Yukon XL 2500 · V8 8.1L · 2001-2002. Compare reference number 15263859 against the label on your existing GMC component before ordering.

Additional cross references on file: 19151921, 19244751. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

15263859 19151921 19244751

Applications

Part Number
SAAB 9-7x · V8 5.3L · 2005-2006
ISUZU Ascender · V8 5.3L · 2003-2006
GMC Yukon XL 2500 · V8 8.1L · 2001-2002
GMC Yukon XL 2500 · V8 6.0L · 2000-2002
GMC Yukon XL 1500 · V8 5.3L · 2000-2002
GMC Yukon · V8 5.3L · 2000-2002
GMC Yukon · V8 4.8L · 2000-2002
GMC Sierra 3500 · V8 8.1L · 2001-2005
GMC Sierra 3500 · V8 6.6L · 2001-2005
GMC Sierra 3500 · V8 6.0L · 2001-2005
GMC Sierra 2500 HD · V8 8.1L · 2001-2005
GMC Sierra 2500 HD · V8 6.6L · 2001-2005
GMC Sierra 2500 HD · V8 6.0L · 2001-2005
GMC Sierra 2500 · V8 6.0L · 1999-2004
GMC Sierra 2500 · V8 5.3L · 1999-2000
GMC Sierra 1500 HD · V8 6.0L · 2001-2005
GMC Sierra 1500 · V8 6.0L · 2002-2004
GMC Sierra 1500 · V8 5.3L · 1999-2004
GMC Sierra 1500 · V8 4.8L · 1999-2004
GMC Sierra 1500 · V6 4.3L · 1999-2004
GMC Savana 3500 · V8 8.1L · 2001-2002
GMC Savana 3500 · V8 6.5L · 2001-2002
GMC Savana 3500 · V8 5.7L · 2001-2002
GMC Savana 2500 · V8 6.5L · 2001-2002
GMC Savana 2500 · V8 5.7L · 2001-2002
GMC Savana 2500 · V8 5.0L · 2001-2002
GMC Savana 2500 · V6 4.3L · 2001-2002
GMC Savana 1500 · V8 5.7L · 2001-2002
GMC Savana 1500 · V8 5.0L · 2001-2002
GMC Savana 1500 · V6 4.3L · 2001-2002
GMC Envoy · V8 5.3L · 2005-2006
GMC C3500HD · V8 8.1L · 2001-2002
CHEVROLET Trailblazer · V8 5.3L · 2006-2006
CHEVROLET Tahoe · V8 5.3L · 2000-2002
CHEVROLET Tahoe · V8 4.8L · 2000-2002
CHEVROLET Suburban 2500 · V8 8.1L · 2001-2002
CHEVROLET Suburban 2500 · V8 6.0L · 2000-2002
CHEVROLET Suburban 1500 · V8 5.3L · 2000-2004
CHEVROLET Silverado 3500 · V8 8.1L · 2001-2005
CHEVROLET Silverado 3500 · V8 6.6L · 2001-2005
CHEVROLET Silverado 3500 · V8 6.0L · 2001-2005
CHEVROLET Silverado 2500 HD · V8 8.1L · 2001-2005
CHEVROLET Silverado 2500 HD · V8 6.6L · 2001-2005
CHEVROLET Silverado 2500 HD · V8 6.0L · 2001-2005
CHEVROLET Silverado 2500 · V8 6.0L · 1999-2004
CHEVROLET Silverado 2500 · V8 5.3L · 1999-2000
CHEVROLET Silverado 1500 HD · V8 6.0L · 2001-2005
CHEVROLET Silverado 1500 · V8 6.0L · 2003-2005
CHEVROLET Silverado 1500 · V8 5.3L · 1999-2005
CHEVROLET Silverado 1500 · V8 4.8L · 1999-2004
CHEVROLET Silverado 1500 · V6 4.3L · 1999-2004
CHEVROLET SSR · V8 5.3L · 2003-2004

Specifications

Part Number	15263859, 19151921, 19244751
SPECIFICATIONS	253 Amp/12 Volt, CW, 6-Groove Pulley
DESIGN	IR/IF
VOLTAGE	12
AMPERAGE	253
ROTATION	CW
PULLEY CLASS	S6
FEATURE 1	100% Top-rated

Fitment Notes

Brand or application signal: GMC Engine Spare Parts
Product family: Alternator
System category: Engine Spare Parts > Engine Auxiliary Components > Alternator
Recommended verification: OEM number, engine model, serial number, old part photos, and dimensions.

Shipping & Returns

Availability: InStock
Shipping: Shipping quotes can be confirmed before payment for heavy or urgent orders.
Returns: Returns are easier when fitment is confirmed before ordering.
B2B support: Bulk, fleet, and repair-shop requests can be handled through the inquiry form.

Frequently Asked Questions

How do I confirm this part fits my machine?

Match the OEM or reference number first, then verify machine model, engine model, serial number, connector layout, mounting points, and old part photos.

Can I order if my part number is not listed?

Yes. Send the old part number, machine plate, and photos through the fitment inquiry form. Support can review possible replacements or alternatives.

Is this an OEM part?

Products are indexed as replacement parts unless explicitly marked otherwise. Always compare reference numbers and confirm fitment before purchase.