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24V Starter Solenoid for Delco 37MT | 1115594 1115604 1115605 D901A 66-105

24V Starter Solenoid for Delco 37MT | 1115594 1115604 1115605 D901A 66-105

SKU:245-12217

Regular price £67.80 GBP
Regular price £81.36 GBP Sale price £67.80 GBP
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24V Solenoid for Delco 37MT

SKU: 1115594 | Heavy-Duty Performance

Restore your vehicle's cranking power with this high-performance 24-volt starter solenoid. Specifically designed for Delco 37MT series heavy-duty starters, this unit is engineered to manage high-current electrical flow reliably under demanding conditions. Ideal for commercial, industrial, and agricultural machinery.

RELIABILITY: Built to meet or exceed OEM specifications with a high-durability insulated base and precision-threaded terminals.

Key Features

  • ✔ 24-Volt Heavy Duty Operation
  • ✔ Insulated Base for enhanced safety
  • ✔ 4-Terminal Configuration (S-G-B-M)
  • ✔ Removable Plunger design
  • ✔ Direct fit for 37MT Series starters

Technical Specs

Voltage 24V
Body OD 68mm
Mount Type 3-Hole Flange
Batt Terminal 1/2-13
Motor Terminal 1/2-13
Switch Term. 10-32 (RH)
Ground Term. 10-32 (LH)

Compatibility / Fitment Guide

Make/Application Model Details Engine / Years
Caterpillar Graders 12G, 120G, 130G, 140G Cat 3304 / 3306 (1985-1986)
Caterpillar 963 Track Loader Cat 3304 (1985)
Cummins C Series Medium Duty 8.3L (1983-1986)
Dresser Loaders 510B, 515B, 520, 520B Cummins 6BT 5.9L (1984-1992)
Case 35D Excavator 336 Diesel (1979-1985)
Lister-Petter ST1, ST2, ST3, TS1, TS2, TS3 All Series (1986-1988)

OEM Cross Reference

Delco Remy 1115594, 1115604, 1115605, D901A
WAI / Transpo 66-105
Unipoint SNLS-D38
ZM Solenoids 459, 461
NAPA ST146

Questions & Answers

Is this a genuine original part?

This is a premium quality aftermarket replacement part from 4Drive, manufactured to meet or exceed original equipment (OE) standards for heavy-duty fitment and longevity.

What does "Insulated Base" mean for this solenoid?

An insulated base means the solenoid is designed with a separate ground terminal. Unlike grounded base units that ground through the mounting bracket, this 4-terminal version allows for a dedicated ground connection, common in specific vehicle electrical systems for Caterpillar and Cummins applications.

Will this work on a 12V system?

No. This solenoid is strictly for 24-volt systems. Installing this on a 12-volt system will result in insufficient power to engage the plunger correctly.

Note: 4drive.co.uk recommends verifying your original starter model (e.g., Delco 37MT) and your current solenoid part number against the cross-reference list before purchasing.

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Shipping calculated at checkout. Free shipping over £150. Terms apply