OEX Alternator 24V 65A Delco 27SI Style DXA9118

The OEX Alternator DXA9118 is a new 24V, 65A unit in Delco 27SI style, supplied as a twin leg alternator with an internal regulator. Key mounting dimensions include 215mm mount centre to centre, 101mm inside mounting legs, and a 22mm shaft diameter, so it is important to match the physical layout as well as the electrical specification before ordering.

This alternator is listed under the OEX brand, with a part number of DXA9118 and a stated Series 27SI designation. It is intended for applications that call for a Delco-style 24V charging unit with 65 amp output, and the unit weight is 8.56kg. Those details are useful when comparing against an existing alternator or checking a machine’s charge system requirements.

OEX states that its products are sourced from market leading original equipment manufacturers and aftermarket suppliers, and that production comes from ISO9001 certified factories. The alternator carries a 3 year passenger / 1 year commercial warranty, which is worth noting when the vehicle or machine uses the alternator in a higher-duty environment.

Key Features

• 24V alternator with 65A output
• Delco 27SI style
• New unit
• Internal regulator
• Twin leg alternator mount
• Part number DXA9118

Specifications

• Brand: OEX
• Product type: Alternator
• Part No.: DXA9118
• Series: 27SI
• Suits unit make: Delco
• Voltage: 24V
• Power rating: 65A
• Regulator type: Internal

Known fitment references supplied

• CATERPILLAR 955K
• CATERPILLAR 955K 1966
• CATERPILLAR 955K 1967
• CATERPILLAR 955K 1968
• CATERPILLAR 955K 1969
• CATERPILLAR 955K 1970
• CATERPILLAR 955K 1971
• CATERPILLAR 955K 1972

Application and Buying Notes

Before ordering, compare the part number DXA9118 and the alternator style against the unit already fitted to the machine. The key checkpoints on this model are 24V voltage, 65A output, Delco suitability, internal regulator type, twin leg mounting, and the 215mm mount centre to centre dimension.

Physical fit is often where the difference is made on rotating electrical parts. This alternator has 101mm inside mounting legs, a 13mm pivot hole diameter, a 1/2 UNC adjusting hole diameter, and a 22mm shaft diameter, so those measurements should be checked against the existing bracketry and drive arrangement rather than relying on appearance alone.

The supplied fitment references include CATERPILLAR 955K, CLARK 175, CLARK 380, CLARK 480, and INTERNATIONAL HARVESTER 250C applications, with year references shown for several of those entries. Use those references as a guide only and confirm the exact application, year, and mounting pattern against the machine in front of you.

This is a new alternator and weighs 8.56kg, so handling, installation, and belt alignment should be approached carefully. If the machine uses a different regulator arrangement or a different case style, the alternator may look similar but still not be a direct match.

Warranty coverage is listed as 3 year passenger and 1 year commercial. That is useful context, but it does not replace a fitment check. For rotating electrical parts, the safest approach is to verify the part number, voltage, amperage, regulator type, and mounting dimensions before purchase.

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 DXA9118 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 3yr Passenger 1yr Commercial, Inside Mounting Legs 101mm, Power Rating (Amp) 65, Series 27SI, Suits Unit Make Delco, Note 27 SI, Mount Cnt to Cnt 215mm, Shaft Dimension 22.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. DXA9118, Brand OEX, Description OEX Alternator 24V 65A Delco 27SI Style, Adjusting Hole Diameter 1/2 UNC, Pivot Hole Diameter 13, Regulator Type Internal, Shaft Diameter 22mm, Voltage 24.

OEX Alternator 24V 65A Delco 27SI Style. Part number DXA9118 should be checked first. Listed voltage is 24. Listed output rating is 65. 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. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number DXA9118, 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 24 and output 65 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include CATERPILLAR 955K, CATERPILLAR 955K 1966, CATERPILLAR 955K 1967, CATERPILLAR 955K 1968, CLARK 175, CLARK 175 1970. 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 3yr Passenger 1yr Commercial. Warranty terms should be considered alongside correct application and part identification, as warranty does not replace fitment confirmation.

Compatibility note: Confirm fitment using part number DXA9118, the Delco 27SI style, and the listed dimensions and application details before ordering. Do not rely on appearance alone, as 24V, 65A, internal regulator, twin leg mount, and the 215mm mount centre to centre measurement all need to match the existing unit.

FAQ

Is this alternator new or remanufactured?

This alternator is listed as new.

What is the voltage and output rating?

It is a 24V alternator with a 65A power rating.

What regulator type does it use?

The regulator type is internal.

What mounting style does it have?

It is listed as a twin leg alternator with 215mm mount centre to centre and 101mm inside mounting legs.

What is the part number?

The part number is DXA9118.

What warranty is listed?

The warranty is 3 year passenger and 1 year commercial.