Prestolite Alternator 12V 185A SCJ2227 Twin Leg New

The Prestolite SCJ2227 is a new 12V alternator rated at 185A, supplied as a single unit for rotating electrical applications. It is an above ground, self-exciting unit with an internal regulator, making the key identification points clear for buyers comparing alternators by voltage, output, and mounting arrangement.

This alternator is fitted with a twin leg mount, 101mm inside mounting legs, a 212mm mount centre to centre measurement, and a 13mm pivot hole diameter. The adjusting hole is 1/2 UNC, the shaft diameter is 22mm, and rotation is clockwise, so those dimensions should be checked carefully against the existing unit before ordering.

The listed part number is SCJ2227, the series is SCJ, and the unit is described as Prestolite Alternator 12V 185A. The alternator is a new unit, weighs 11.84kg, and carries a one year warranty.

Key Features

• 12V alternator with 185A output
• New unit, not remanufactured
• Internal regulator
• Self-exciting design
• Twin leg alternator mount
• Clockwise rotation

Specifications

• Brand: Prestolite
• Part No.: SCJ2227
• Series: SCJ
• Power rating: 185A
• Voltage: 12V
• Rotation: CW
• Alternator mount: Twin Leg
• Inside mounting legs: 101mm

Fitment guidance

• Supported application families include CASE IH, JOHN DEERE, and NEW HOLLAND.
• Listed examples include CASE IH 5140, 8120, 8230, 8240, 9120, 9230 and 9240.
• Listed examples include JOHN DEERE 7460, 9660 CWS, 9660 STS, 9750, 9750 STS, 9760 STS and 9860 STS.
• Listed examples include NEW HOLLAND CR10.90, CR7.90, CR8.90, CR8090, CR9.90, CR9070, CR960 and CR970.
• Some applications are shown with year references, including 2014, 2010, 2009, 2004, 2003, 2001, 1998, 2012 and 2007.
• Fitment should still be checked against the existing alternator dimensions, mount type and part number before purchase.

Application and Buying Notes

For a correct replacement, compare the part number SCJ2227, the 12V / 185A rating, and the physical mounting details before ordering. The critical dimensions here are the twin leg mount, 101mm inside mounting legs, 212mm mount centre to centre, 13mm pivot hole, 1/2 UNC adjusting hole, and 22mm shaft diameter.

The alternator is clockwise rotation and has an internal regulator, so both electrical setup and mechanical fit need to line up with the machine. If the original unit differs in rotation, mount style, or shaft size, do not assume interchangeability just because the output rating is similar.

This unit is described as above ground and self exciting, with insulated return set to Yes. Those details matter when you are matching the charging system configuration rather than just replacing a worn alternator by appearance.

Before supply, the safest approach is to confirm the original unit details against the listed part number, voltage, output rating, mounting arrangement, and pulley configuration. That checking process is standard practice in the parts trade because visually similar units can still differ in service-critical ways.

For workshop, fleet, and equipment applications, accurate identification of part number SCJ2227 helps avoid unnecessary freight, additional labour, and vehicle or machine downtime. Where the application is not straightforward, the original unit, OEM reference, or workshop records should be used as the primary confirmation point.

Relevant published details for this unit include Type ALTERNATOR, Unit of Measure EACH, Warranty One Year, Inside Mounting Legs 101mm, Pivot Hole Diameter 13, Pulley Section Not Applicable, Rotation CW, Shaft Diameter 22mm, Voltage 12, Alternator Mount Twin Leg.

Additional published details for cross-checking include New / Reman. New, Shaft Dimension 22, Product Group 2 ALTERNATORS, Part No. SCJ2227, Brand PRESTOLITE, Description Prestolite Alternator 12V 185A, Adjusting Hole Diameter 1/2 UNC, Pin Code IR209, Power Rating (Amp) 185.

Prestolite Alternator 12V 185A. Part number SCJ2227 should be checked first. Listed voltage is 12. Listed output rating is 185. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Twin Leg. Regulator type is Internal. Pulley configuration is Not Applicable. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number SCJ2227, the normal identification sequence is part number, electrical rating, mounting arrangement, connector or terminal style, and pulley or drive details. Using those checkpoints helps confirm that the listed unit matches the service requirement rather than only looking similar.

For a alternator in workshop, fleet, trade, agricultural, or construction service, the listed voltage 12 and output 185 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include CASE IH 5140, CASE IH 5140 2014, CASE IH 8120, CASE IH 8120 2010, JOHN DEERE 7460, JOHN DEERE 7460 2004. Even with application listings, final confirmation should still be based on the exact unit being replaced and the service requirements of the vehicle or machine.

Compatibility note: Confirm compatibility using part number SCJ2227, the 12V 185A specification, and the listed mount and shaft measurements. Application listings are a guide only, so the existing alternator should be matched by physical dimensions and system details before purchase.

FAQ

What is the part number for this Prestolite alternator?

The part number is SCJ2227. It is also listed in the SCJ series. For this listing, part number SCJ2227 is the main reference point. Listed voltage is 12. Listed output rating is 185. Published fitment references include CASE IH 5140, CASE IH 5140 2014, CASE IH 8120. These details should still be checked against the original unit before ordering.

What voltage and output does it have?

It is a 12V alternator with a 185A power rating. For this listing, part number SCJ2227 is the main reference point. Listed voltage is 12. Listed output rating is 185. Published fitment references include CASE IH 5140, CASE IH 5140 2014, CASE IH 8120. These details should still be checked against the original unit before ordering.

Is this a new or remanufactured unit?

It is listed as new, not remanufactured. For this listing, part number SCJ2227 is the main reference point. Listed voltage is 12. Listed output rating is 185. Published fitment references include CASE IH 5140, CASE IH 5140 2014, CASE IH 8120. These details should still be checked against the original unit before ordering.

What mounting details should I check before buying?

Check the twin leg mount, 101mm inside mounting legs, 212mm mount centre to centre, 13mm pivot hole diameter, and 1/2 UNC adjusting hole diameter. For this listing, part number SCJ2227 is the main reference point. Listed voltage is 12. Listed output rating is 185. Published fitment references include CASE IH 5140, CASE IH 5140 2014, CASE IH 8120. These details should still be checked against the original unit before ordering.

Which way does it rotate?

The alternator rotation is clockwise, shown as CW. For this listing, part number SCJ2227 is the main reference point. Listed voltage is 12. Listed output rating is 185. Published fitment references include CASE IH 5140, CASE IH 5140 2014, CASE IH 8120. These details should still be checked against the original unit before ordering.

What applications are listed for this alternator?

Listed application families include CASE IH, JOHN DEERE and NEW HOLLAND, with examples such as CASE IH 5140, JOHN DEERE 9660 STS and NEW HOLLAND CR10.90. Fitment should still be confirmed against the existing unit before purchase. For this listing, part number SCJ2227 is the main reference point. Listed voltage is 12. Listed output rating is 185. Published fitment references include CASE IH 5140, CASE IH 5140 2014, CASE IH 8120. These details should still be checked against the original unit before ordering.