How do I confirm pilotpart390221 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 2002-2004 Mercury Mountaineer & 1999-02 Lincoln Town Car 4.6L V8 XW7U-AA, XW7U-AC, XW7U-AD

For Mercury Alternator

Alternator XW7U-AA for Mercury V8 4.6L Engine

OEM / REF: XW7U-AASKU: pilotpart390221

New Alternator Replacement For 2002-2004 Mercury Mountaineer & 1999-02 Lincoln Town Car 4.6L V8 XW7U-AA, XW7U-AC, XW7U-AD is a Alternator replacement part indexed for Part Number and MERCURY Grand Marquis · V8 4.6L · 1999-2002, with 3 application records on file. Match OEM part number XW7U-AA and confirm fitment for...

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

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$194.88USD/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; MERCURY Grand Marquis · V8 4.6L · 1999-2002; LINCOLN Town Car · V8 4.6L · 1999-2000; FORD Crown Victoria · V8 4.6L · 1999-2000. Compare reference number XW7U-AA against the label on your existing Mercury component before ordering.

Additional cross references on file: XW7U-AC, XW7U-AD. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

XW7U-AA XW7U-AC XW7U-AD

Applications

Part Number
MERCURY Grand Marquis · V8 4.6L · 1999-2002
LINCOLN Town Car · V8 4.6L · 1999-2000
FORD Crown Victoria · V8 4.6L · 1999-2000

Specifications

Part Number	XW7U-AA, XW7U-AC, XW7U-AD
SPECIFICATIONS	130 Amp/12 Volt, CW, 6-Groove/53mm OD Pulley
DESIGN	IR/IF
VOLTAGE	12
AMPERAGE	130
ROTATION	CW
PULLEY CLASS	S6
NOTE 1	331 Plug Code
NOTE 2	Neg. Grd.
NOTE 3	6 sec. LRC
FEATURE 1	100% Top-rated
FEATURE 2	Rectifier features 13mm press-fit diodes
FEATURE 3	Premium, hi-temperature bearings

Fitment Notes

Brand or application signal: Mercury 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.