How do I confirm pilotpart387057 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 Replacement For Chevy GMC Olds Isuzu Blazer Astro Jimmy Sonoma S10 V6 4.3L 10464433 10480254 321-1793 334-2475 321-1432, ADR0129, 2105120, 40012112, 40012112R, 40012245

For GMC Alternator

Alternator 40012112R for GMC V6 4.3L Engine

OEM / REF: 40012112RSKU: pilotpart387057

New Alternator Replacement For Chevy GMC Olds Isuzu Blazer Astro Jimmy Sonoma S10 V6 4.3L 10464433 10480254 321-1793 334-2475 321-1432, ADR0129, 2105120, 40012112, 40012112R, 40012245 is a Alternator replacement part indexed for Part Number and OLDSMOBILE Bravada · V6 4.3L · 1998-2000, with 3 application records on...

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

$170.07USD/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; OLDSMOBILE Bravada · V6 4.3L · 1998-2000; ISUZU Hombre · V6 4.3L · 1998-2000; GMC Sonoma · V6 4.3L · 1998-2000. Compare reference number 40012112R against the label on your existing GMC component before ordering.

Additional cross references on file: 40012245. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

40012112R 40012245

Applications

Part Number
OLDSMOBILE Bravada · V6 4.3L · 1998-2000
ISUZU Hombre · V6 4.3L · 1998-2000
GMC Sonoma · V6 4.3L · 1998-2000
GMC Safari · V6 4.3L · 2000-2000
GMC Jimmy · V6 4.3L · 1998-2000
CHEVROLET S10 · V6 4.3L · 1998-2000
CHEVROLET Blazer · V6 4.3L · 1998-2000
CHEVROLET Astro · V6 4.3L · 2000-2000

Specifications

Part Number	40012112R, 40012245
SPECIFICATIONS	105 Amp/12 Volt, CW, 6-Groove Pulley, 05: 00 Plug Clock
DESIGN	IR/IF
VOLTAGE	12
AMPERAGE	105
ROTATION	CW
PULLEY CLASS	S6
FEATURE 1	100% Top-rated
FEATURE 2	OE performance output curve
FEATURE 3	premium rectifier featuring press-fit avalanche diodes

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.