What is better Mellling vs. GM oil pump?

Both Melling and GM oil pumps are reputable brands and offer quality products. The better choice between the two depends on factors such as the specific application, compatibility, and personal preference.

GM Genuine Parts 321-39 | Alternator

Part Number

321-39

Alternator

Fits various model years of the following vehicles: Buick, Cadillac, Chevrolet, GMC, Oldsmobile, Pontiac

Special Price $96.29 Regular Price $106.99

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Product Information

Description

GM Genuine Parts Remanufactured Alternators are designed, engineered, and tested to rigorous standards, and are backed by General Motors. Remanufacturing alternators is an industry standard practice that involves disassembly of existing units, and replacing components that are most prone to wear with new components. Damaged and obsolete parts are replaced and are end of line tested to ensure they perform to GM specifications. In addition, remanufacturing returns components back into service rather than processing as scrap or simply disposing of them. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Features

Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
Remanufacturing is an industry standard practice that returns parts into service rather than scrapping them
Tested to ensure they perform to GM specifications

Specifications

Alternator Case Material:	Aluminum
Amperage Rating:	63
DE to Pulley 1st Groove (mm):	24mm
DE to Rotor Shaft End (mm):	29
External Fan Included:	Yes
Family:	Delco 10 SI
Fan Type:	External
Finish:	Same as OE
Ground Type:	Negative
Height (in):	10.25
Length (in):	13.88
Meets or Exceeds Original Equipment Manufacture Specifications:	Yes
Mounting Type:	1 Pivot Foot
Pulley Belt Type:	V-belt
Pulley Groove Quantity:	1
Pulley Included:	Yes
Pulley Outside Diameter (mm):	66
Regulator Type:	Internal
Rotation Direction:	Clockwise
Terminal Connection Quantity:	2
Voltage:	12 VDC
Weight (lb):	10.1
Width (in):	13.25