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12V Starter RE508922 RE540304 for John Deere 4120 4320 4520 313 315 317 320 323
$229.99
Sale price
$229.99
Regular price
Available to Order
This starter motor is a high-quality aftermarket replacement for compatible John Deere equipment that helps restore strong, dependable engine cranking.
Not sure which part fits your equipment?
Our Northline Parts team can help you find the right replacement. Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT | Live Chat: Available 24/7
I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
Edward H. — Verified customer
Product Overview
The starter motor turns the engine during startup. Slow cranking, clicking, intermittent engagement, or no rotation can result from a worn starter as well as battery, cable, relay, or ground problems.
This part matches reference numbers RE508922 and RE540304. Compare the original component’s part number, voltage, tooth count, power rating, rotation, mounting flange, and terminal location before ordering.
Key Features & Performance
- Restores engine-cranking power
- Designed for compatible flywheel and mounting arrangements
- 12V design for compatible electrical systems
- Practical replacement for a worn starter
Fitment & Compatibility
Compatible with select John Deere 4120 4320 4520 313 315 317 320 323 applications. Serial-number breaks, production changes, or equipment options may affect the required part.
Technical Specifications
- Product Type: Starter Motor
- Compatible Brand: John Deere
- Part Number(s): RE508922, RE540304
- Voltage: 12V
Frequently Asked Questions
Q: How do I confirm the correct starter motor? A: Match the voltage, tooth count, rotation, mounting pattern, electrical terminals, and original part number.
Q: Is this an original OEM part? A: This is an aftermarket replacement; brand names and part numbers are used only to identify compatibility.
Compatibility may vary by serial number, production date, or equipment configuration. Verify fitment before purchase.