Genuine Alternator 12V 150A Mitsubishi SHMW18300

This Genuine Products alternator is a new 12V, 150A unit for Mitsubishi applications, supplied under part number SHMW18300. It is a rotating electrical component sold each, with a 12-month warranty and a stated weight of 6.02kg.

Key physical details include a 6 groove pulley, 51mm pulley outside diameter, 10mm pivot hole diameter with M10x1.25 threading, and an internal regulator. Those details matter when matching the unit to the vehicle and checking the existing installation before purchase.

The listed pin code is IR140, and the alternator is described as a genuine product rather than a remanufactured unit. For buyers replacing a charging system component, the combination of voltage, amperage, pulley style, mounting details, and part number should be checked carefully against the original unit.

Key Features

• New alternator, not remanufactured
• 12V system voltage
• 150A power rating
• Internal regulator type
• 6 groove pulley
• 51mm pulley outside diameter

Specifications

• Brand: Genuine Products
• Product type: Alternator
• Unit of measure: Each
• Voltage: 12
• Power rating: 150A
• New / remanufactured: New
• Regulator type: Internal
• Pulley section: 6 groove

Fitment

• Suits unit make: Mitsubishi
• Fitment data supplied with Mitsubishi as the unit make
• No verified model-specific applications are listed beyond the supplied Mitsubishi make reference

Application and Buying Notes

When replacing an alternator, the safest match is the original part number and the electrical and mounting details. For this unit, the key identifiers are SHMW18300, 12V, 150A, internal regulator, 6 groove pulley, and 51mm pulley outside diameter. If any of those points differ from the removed alternator, stop and verify before ordering.

The pivot hole is listed as 10 / M10x1.25, which is an important check for physical fitment at the mounting point. Even when the vehicle make is Mitsubishi, the mounting arrangement and pulley setup need to line up with the existing unit to avoid installation issues.

The alternator is new and covered by a 12-month warranty, but warranty cover does not replace the need to confirm fitment. Compare the part number, pin code IR140, and pulley configuration with the vehicle’s original alternator or service information before fitting.

Because alternators can vary within the same make range, it is worth confirming the charging system specification, connector style, and bracket arrangement on the vehicle before purchase. The 150A rating and internal regulator are useful reference points, but they should be matched to the exact application rather than assumed from the make alone.

If you are replacing a failed unit, keep the old alternator on hand until the new one is checked against it. Matching the 6 groove pulley, 51mm outside diameter, M10x1.25 pivot hole, and SHMW18300 part number gives a much better chance of getting the correct replacement the first time.

This alternator is supplied as a single each item and is listed at 6.02kg, so it is a substantial rotating electrical component. Handle it carefully during comparison and installation, and make sure all mounting and electrical points are consistent with the existing setup before final tightening.

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 SHMW18300 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 12 Months, Pivot Hole Diameter 10 / M10x1.25, Pulley Outside Diameter 51mm, Regulator Type Internal, Voltage 12, New / Reman. New, Product Group 2 ALTERNATORS.

Additional published details for cross-checking include Part No. SHMW18300, Brand GENUINE PRODUCTS, Description Genuine Alternator 12V 150A Mitsubishi, Pin Code IR140, Power Rating (Amp) 150, Pulley Section 6 Groove, Suits Unit Make Mitsubishi, Item Type Alternator, Weight 6.02kg, Product Group 1 ROTATING ELECTRICAL.

Genuine Alternator 12V 150A Mitsubishi. Part number SHMW18300 should be checked first. Listed voltage is 12. Listed output rating is 150. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Regulator type is Internal. Pulley configuration is 6 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number SHMW18300, 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 150 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include MAZDA CX-5, MAZDA CX-5 2017, MAZDA CX-5 2018. 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.

The listed warranty is 12 Months. Warranty terms should be considered alongside correct application and part identification, as warranty does not replace fitment confirmation.

Compatibility note: Confirm fitment by checking the part number SHMW18300, the Mitsubishi application, the 12V/150A specification, the internal regulator, and the 6 groove pulley arrangement against the vehicle’s original alternator before purchase.

FAQ

Is this alternator new or remanufactured?

It is listed as new, not remanufactured.

What vehicle make is it listed for?

The supplied fitment reference lists Mitsubishi as the unit make.

What is the part number?

The listed part number is SHMW18300.

What are the key electrical specifications?

It is a 12V alternator with a 150A power rating and an internal regulator.

What pulley details are provided?

The alternator has a 6 groove pulley with a 51mm pulley outside diameter.

What should I check before ordering?

Confirm the part number SHMW18300, the Mitsubishi application, the 12V/150A rating, the internal regulator, and the mounting details including the 10 / M10x1.25 pivot hole diameter.