Denso Alternator 12V 40A DXA4093

The Denso Alternator 12V 40A is a new alternator supplied as each, with part number DXA4093. It is a rotating electrical component with a 12V system and 40 amp power rating, suited to applications that call for a compact alternator with an internal regulator and single leg mount.

Key physical details include a 69mm pulley outside diameter, 148mm mount centre to centre, 21mm mount leg thickness, 10mm pivot hole diameter and 8mm adjusting hole diameter. The pulley section is A, and the unit is listed with insulated return as No.

This alternator is identified as Denso brand, with a pin code of IR74 and suit unit make Denso. It carries a 12 months 20000km warranty and is described as using premium cores and precise OE assembly benchmarks, with a design aimed at demanding heat and electrical conditions.

Key Features

• New alternator, sold each
• 12V, 40A output
• Internal regulator
• Single leg mount
• Compact and lightweight design
• Premium cores and precise OE assembly benchmarks

Specifications

• Brand: Denso
• Part No.: DXA4093
• Voltage: 12V
• Power rating: 40 amp
• Regulator type: Internal
• Alternator mount: Single leg
• Pulley outside diameter: 69mm
• Pulley section: A

Known fitment references

• AMMANN: 1575 TRENCH, ARX12, ARX16/C, ARX20
• CASE: CX27B
• DOOSAN/DAEWOO: DX27Z, DX30Z
• FIORI: D25RF/RT
• GEHL: 1640E
• HITACHI: ZX26U-5, ZX38U-5A, ZX75US-5
• IHI: 28N, 30NX-2, 30VX, 35N, 35NX
• JOHN DEERE: 1023E, 1025R, 110 TLB, 25, 27 ZTS, 27C ZTS, 27D

Application and Buying Notes

Before ordering, confirm the part number DXA4093 and compare the mounting details against the vehicle or machine already fitted with your old alternator. The 12V system, 40 amp output and internal regulator need to match the charging setup already in place, and the 69mm pulley outside diameter is a useful check where pulley interchange matters.

Mounting points should be checked carefully: this unit is a single leg mount with 148mm centre to centre between mounts, a 21mm mount leg thickness, a 10mm pivot hole and an 8mm adjusting hole. Those measurements matter as much as the brand name, because a close-looking alternator can still be wrong at the brackets or pulley.

The listed fitment references cover a wide mix of compact equipment and machinery, including AMMANN, CASE, DOOSAN/DAEWOO, GEHL, HITACHI, IHI, JOHN DEERE, KOBELCO, KOMATSU, NEW HOLLAND, TAKEUCHI, VOLVO CONSTRUCTION and YANMAR applications. That breadth is helpful, but the correct approach is still to verify the exact application against your machine details, not just the make.

If your original unit is marked differently, compare the pin code IR74, the pulley section A and the internal regulator type before purchase. The alternator is listed as new, not remanufactured, and is supplied with a 12 months 20000km warranty, so it is worth confirming the existing unit’s layout before fitting.

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 DXA4093 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 20000km, Mount Leg Thickness 21mm, Pivot Hole Diameter 10, Pulley Outside Diameter 69mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 148mm, Insulated Return No.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. DXA4093, Brand DENSO, Description Denso Alternator 12V 40A, Adjusting Hole Diameter 8, Pin Code IR74, Power Rating (Amp) 40, Pulley Section A, Suits Unit Make Denso, Alternator Mount Single Leg.

Denso Alternator 12V 40A. Part number DXA4093 should be checked first. Listed voltage is 12. Listed output rating is 40. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Single Leg. Regulator type is Internal. Pulley configuration is A. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number DXA4093, 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 40 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Please confirm compatibility by matching part number DXA4093, the 12V 40A specification, the single leg mount measurements, and the exact application details on your machine before ordering.

FAQ

Is this alternator new or remanufactured?

It is listed as new. For this listing, part number DXA4093 is the main reference point. Listed voltage is 12. Listed output rating is 40. Published fitment references include AMMANN 1575 TRENCH, AMMANN 1575 TRENCH 2013, AMMANN ARR 1575 2015. These details should still be checked against the original unit before ordering.

What is the part number for this alternator?

The part number is DXA4093. For this listing, part number DXA4093 is the main reference point. Listed voltage is 12. Listed output rating is 40. Published fitment references include AMMANN 1575 TRENCH, AMMANN 1575 TRENCH 2013, AMMANN ARR 1575 2015. 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 40 amp power rating. For this listing, part number DXA4093 is the main reference point. Listed voltage is 12. Listed output rating is 40. Published fitment references include AMMANN 1575 TRENCH, AMMANN 1575 TRENCH 2013, AMMANN ARR 1575 2015. These details should still be checked against the original unit before ordering.

Does it use an internal regulator?

Yes. The regulator type is internal. For this listing, part number DXA4093 is the main reference point. Listed voltage is 12. Listed output rating is 40. Published fitment references include AMMANN 1575 TRENCH, AMMANN 1575 TRENCH 2013, AMMANN ARR 1575 2015. These details should still be checked against the original unit before ordering.

What are the main mounting measurements?

The listed mounting details are single leg mount, 148mm mount centre to centre, 21mm mount leg thickness, 10mm pivot hole diameter and 8mm adjusting hole diameter. For this listing, part number DXA4093 is the main reference point. Listed voltage is 12. Listed output rating is 40. Published fitment references include AMMANN 1575 TRENCH, AMMANN 1575 TRENCH 2013, AMMANN ARR 1575 2015. These details should still be checked against the original unit before ordering.

What warranty is supplied?

It carries a 12 months 20000km warranty. For this listing, part number DXA4093 is the main reference point. Listed voltage is 12. Listed output rating is 40. Published fitment references include AMMANN 1575 TRENCH, AMMANN 1575 TRENCH 2013, AMMANN ARR 1575 2015. These details should still be checked against the original unit before ordering.