Heavy Duty Alternator

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Equivalent Replacement Parts for AC DELCO Part Number 323-791

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Part Number	Description	Brochure (English)	Brochure (Spanish)
1990379 1990379 42MT New Starter Status: Obsolete Type: New Mount Type: SAE 3 OCP: No	42MT New Starter
10461051 10461051 42MT Reman Starter Status: Obsolete Type: Reman Mount Type: SAE 3 OCP: No	42MT Reman Starter
10461051 10461051 42MT Reman Starter Status: Obsolete Type: Reman Mount Type: SAE 3 OCP: No	42MT Reman Starter
1990220 1990220 40MT Reman Starter Status: Obsolete Type: Reman Mount Type: SAE 3 OCP: No	40MT Reman Starter
1990220 1990220 40MT Reman Starter Status: Obsolete Type: Reman Mount Type: SAE 3 OCP: No	40MT Reman Starter
10461051 10461051 42MT Reman Starter Status: Obsolete Type: Reman Mount Type: SAE 3 OCP: No	42MT Reman Starter
10461051 10461051 42MT Reman Starter Status: Obsolete Type: Reman Mount Type: SAE 3 OCP: No	42MT Reman Starter
1990379 1990379 42MT New Starter Status: Obsolete Type: New Mount Type: SAE 3 OCP: No	42MT New Starter
1990379 1990379 42MT New Starter Status: Obsolete Type: New Mount Type: SAE 3 OCP: No	42MT New Starter
10461051 10461051 42MT Reman Starter Status: Obsolete Type: Reman Mount Type: SAE 3 OCP: No	42MT Reman Starter
10461051 10461051 42MT Reman Starter Status: Obsolete Type: Reman Mount Type: SAE 3 OCP: No	42MT Reman Starter
1990220 1990220 40MT Reman Starter Status: Obsolete Type: Reman Mount Type: SAE 3 OCP: No	40MT Reman Starter
1990220 1990220 40MT Reman Starter Status: Obsolete Type: Reman Voltage: 12 Mount Type: SAE 3 Pinion Teeth: 12 Pinion Pitch: 8/10 Sol Posn: 308 Rotation: CW Polarity: Insulated OCP: No	40MT Reman Starter
10461051 10461051 42MT Reman Starter Status: Obsolete Type: Reman Voltage: 12 Mount Type: SAE 3 Pinion Teeth: 12 Pinion Pitch: 8/10 Sol Posn: 308 Rotation: CW Polarity: Insulated OCP: No	42MT Reman Starter
10461051 10461051 42MT Reman Starter Status: Obsolete Type: Reman Voltage: 12 Mount Type: SAE 3 Pinion Teeth: 12 Pinion Pitch: 8/10 Sol Posn: 308 Rotation: CW Polarity: Insulated OCP: No	42MT Reman Starter
1990379 1990379 42MT New Starter Status: Obsolete Type: New Voltage: 12 Mount Type: SAE 3 Pinion Teeth: 12 Pinion Pitch: 8/10 Sol Posn: 308 Rotation: CW Polarity: Insulated OCP: No	42MT New Starter

Upgrade Options

Part Number	Description	Amps	Feature	Brochure (English)	Brochure (Spanish)	Notes
8200433 8200433 39MT Starter Motor Status: Active Type: New Voltage: 12 Mount Type: SAE 3 Pinion Teeth: 12 Pinion Pitch: 8/10 Sol Posn: 082 Rotation: CW Polarity: Insulated OCP: Yes	39MT Starter Motor			Download PDF	Download PDF	Best Replacement, 39MT All-Makes / Tech Tip Videos ALL-MAKES 39MT STARTERS * Are equipped with Over Crank Protection (OCP) - protects starter against thermal damage Tech Tip Video: * Are equipped with an Integral Magnetic Switch (IMS) - reduces voltage drop, ensures the solenoid receives the maximum available voltage in all starting conditions (DO NOT REMOVE THE IMS SWITCH WHEN INSTALLING THIS STARTER) * Utilize a Rotatable Flange Design to expand application coverage and P/N consolidation - reduces SKU's up to 50% Tech Tip Video: * Have a 3 year / unlimited miles warranty (Applicable to U.S., Canada & Mexico only) It is important to understand the application before recommending this model as a replacement. Please contact our Technical Assistance Team with ANY questions.