Delco Remy Starter Motor 12V 12T CW 42MT Part No. 1990379

The Delco Remy starter motor listed here is a 12V unit with 12 teeth, clockwise rotation and the 42MT note, identified by part number 1990379. It is a new starter motor for Delco applications and is supplied as an each item, with a 3 hole starter mount type and insulated return.

Key physical details include mount centres A, B and C all listed at 126mm, a flange diameter of 92mm, a mount hole diameter of 16mm and an overall length of 490mm. The pinion diameter is 46mm and the pinion at rest measurement is 48mm, so those dimensions should be checked against the existing starter arrangement before ordering.

The power rating is 7.8kW, which makes this a substantial starter assembly rather than a small light-duty unit. It weighs 27.7kg and is listed for wet or dry clutch use, so matching the application and mounting dimensions is just as important as matching voltage and tooth count.

Key Features

• 12V starter motor
• 12 tooth pinion
• Clockwise rotation
• 42MT note
• Insulated return
• New unit

Specifications

• Part No.: 1990379
• Brand: Delco Remy
• Voltage: 12V
• Power rating: 7.8kW
• Number of teeth: 12
• Rotation: CW
• Starter mount type: 3 hole
• Mount centres A/B/C: 126mm

Confirmed fitment references

• CASE 4994
• CASE 9150
• CATERPILLAR 3176
• CATERPILLAR 3306
• CATERPILLAR 3306T
• JOHN DEERE 5730
• JOHN DEERE 5830
• NEW HOLLAND 1895

Application and Buying Notes

Before ordering, compare the part number 1990379 with the starter already fitted to the machine. The critical match points here are 12V, 12 teeth, clockwise rotation, 42MT note, 3 hole mount type and the 126mm mount centres, because those details affect whether the unit will bolt up and engage correctly.

The dimensions matter on this starter. With a 92mm flange diameter, 490mm overall length, 46mm pinion diameter and 48mm pinion at rest measurement, a visual match is not enough. Confirm the space available around the housing and the position of the mounting holes before you buy.

This is a 7.8kW starter motor, so it is intended for applications that need a heavier-duty starting system than a small engine starter. The unit is listed as new and suitable for wet or dry clutch use, but the actual application still needs to be checked against the machine serial, starter mounting pattern and existing electrical setup.

If you are replacing a failed starter, the safest approach is to compare the old unit side by side with this one. Match the mount centres, tooth count, rotation, voltage and pinion dimensions first, then confirm the machine reference against the compatible applications where available. That is the best way to reduce the chance of ordering the wrong starter and having to rework the job.

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 1990379 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 STARTER MOTOR, Unit of Measure EACH, Warranty One Year, Mount Centres A 126mm, Mount Centres C 126mm, Number of Teeth 12, Pinion at Rest 48mm, Power Rating 7.8kW, Suits Unit Make Delco, Note 42MT.

Additional published details for cross-checking include New / Reman. New, Wet / Dry Clutch Wet or Dry, Product Group 2 STARTER MOTORS, Part No. 1990379, Brand DELCO REMY, Description Delco Remy Starter Motor 12V 12Th CW 42MT, Flange Diameter 92mm, Mount Centres B 126mm, Mount Hole Diameter 16.

Delco Remy Starter Motor 12V 12Th CW 42MT. Part number 1990379 should be checked first. Listed voltage is 12. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number 1990379, 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 starter motor in workshop, fleet, trade, agricultural, or construction service, the listed voltage 12 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include CASE 4994, CASE 4994 1985, CASE 4994 1986, CASE 4994 1987, CATERPILLAR 3176, CATERPILLAR 3176 1997. 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: Please confirm fitment by checking part number 1990379, the 12V clockwise 12 tooth specification, and the 3 hole mounting dimensions against the existing starter and machine application before purchase.

FAQ

Is this starter motor new or remanufactured?

It is listed as new. For this listing, part number 1990379 is the main reference point. Listed voltage is 12. Published fitment references include CASE 4994, CASE 4994 1985, CASE 4994 1986. These details should still be checked against the original unit before ordering.

What is the voltage and rotation of this starter?

It is a 12V starter motor with clockwise rotation. For this listing, part number 1990379 is the main reference point. Listed voltage is 12. Published fitment references include CASE 4994, CASE 4994 1985, CASE 4994 1986. These details should still be checked against the original unit before ordering.

How many teeth does the pinion have?

The pinion is listed with 12 teeth. For this listing, part number 1990379 is the main reference point. Listed voltage is 12. Published fitment references include CASE 4994, CASE 4994 1985, CASE 4994 1986. These details should still be checked against the original unit before ordering.

What mounting details should I check before ordering?

Check the 3 hole starter mount type, mount centres A, B and C at 126mm, flange diameter of 92mm and mount hole diameter of 16mm. For this listing, part number 1990379 is the main reference point. Listed voltage is 12. Published fitment references include CASE 4994, CASE 4994 1985, CASE 4994 1986. These details should still be checked against the original unit before ordering.

What is the power rating?

The listed power rating is 7.8kW. For this listing, part number 1990379 is the main reference point. Listed voltage is 12. Published fitment references include CASE 4994, CASE 4994 1985, CASE 4994 1986. These details should still be checked against the original unit before ordering.

What warranty is supplied?

The warranty listed is one year. For this listing, part number 1990379 is the main reference point. Listed voltage is 12. Published fitment references include CASE 4994, CASE 4994 1985, CASE 4994 1986. These details should still be checked against the original unit before ordering.