Cummins Onan 12V Generator Starter Solenoid 307-2570 307-1617 307-0845 307-2586
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
- Cummins Onan RV generator sets using 307-2570
- Cummins Onan RV generator sets using 307-1617
- Cummins Onan RV generator sets using 307-0845
- Cummins Onan RV generator sets using 307-2586
Product Overview
When an RV generator clicks but will not crank—or cranks only after the solenoid is tapped—the contacts may be burned. Battery condition, grounds, control voltage, and the starter should be tested before replacement.
This 12-volt starter solenoid cross-references four commonly listed Cummins Onan numbers. Generator spec letters matter, so compare the original label, stud arrangement, small-terminal layout, and mounting bracket.
Key Features & Performance
- Switches high starter current from a low-current control signal
- 12-volt coil application
- Four published Onan cross-reference numbers
- Compact generator starter-system repair
- New aftermarket solenoid
Replaces Part Numbers
- 307-2570
- 307-1617
- 307-0845
- 307-2586
Common Uses
- Repairing a confirmed click-no-crank condition
- Replacing burned high-current studs
- Correcting intermittent cranking
- Servicing an RV generator starter circuit
Technical Specifications
- Product Type: Starter solenoid
- Voltage: 12V
- Primary Application: Cummins Onan generator starting system
- Condition: New
- Replacement Type: Aftermarket
Installation & Fitment
- Disable automatic generator starting
- Disconnect coach and generator battery sources
- Label all cables and control wires
- Compare terminal placement and mounting before installation
- Test crank and release operation with guards restored
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Model, production date, serial number, dimensions, electrical or mounting configuration, installed options, and previous repairs can affect fitment. Compare the removed part and equipment information before purchase.
Frequently Asked Questions
Q: Why does my generator click but not crank? A: A weak battery, voltage drop, poor ground, failed solenoid, or starter problem can all cause that symptom. Measure voltage at the starter circuit first.
Q: Does the model name alone confirm fit? A: No. Onan generator spec letters and production revisions can change electrical parts, so use the original number and layout.
Q: How do I confirm fitment before ordering? A: Match the original reference number, equipment model and serial number, dimensions, connector or mounting details, and the product photos. Do not rely on appearance alone.
Q: Is this made by the original equipment manufacturer? A: No. This is a new aftermarket part. Brand names and model numbers are used only to identify compatible equipment.
Part Summary
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Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.