---
product_id: 854988432
title: "New Hot Rod Starter Relay Solenoid 12V Heavy Duty SW3 Compatible with 1956-up and B-6A-11450A C6AF C7AF C3912 C9AF D2AF11450AA 50-430"
price: "$84.55"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/854988432-new-hot-rod-starter-relay-solenoid-12v-heavy-duty-sw3
store_origin: US
region: United States of America
---

# New Hot Rod Starter Relay Solenoid 12V Heavy Duty SW3 Compatible with 1956-up and B-6A-11450A C6AF C7AF C3912 C9AF D2AF11450AA 50-430

**Price:** $84.55
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** New Hot Rod Starter Relay Solenoid 12V Heavy Duty SW3 Compatible with 1956-up and B-6A-11450A C6AF C7AF C3912 C9AF D2AF11450AA 50-430
- **How much does it cost?** $84.55 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/854988432-new-hot-rod-starter-relay-solenoid-12v-heavy-duty-sw3)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Product Details

- **Brand:** MRELC
- **Material:** Zink alloy, Iron, Copper
- **Item Weight:** 0.29 Kilograms
- **Amperage:** 11450 Amps
- **Voltage:** 12 Volts

## Questions & Answers

**Q: does this have the push button**
A: No, this does not have a separate push on/off button. The smaller gauge 12V trigger wire hot lead with an inline on/off switch (or button) is attached to one of the smaller silver terminals, a ground wire is attached to the other silver terminal, the heavy gauge 12V hot lead is attached to one of the larger copper terminals, and the heavy gauge wire leading to the starter is attached to the other heavy copper terminal.

**Q: stud size connections?**
A: Standard size on any starter solenoid should be the same size of the one you're taking off

**Q: Will this replace a 307-2570?**
A: I don’t see why it wouldn’t.  The mounting bracket and terminals look the same.  I installed it on a 1983 Ford F-150.  Works great!

**Q: Does this replace the solenoid for the Lincoln portable welder "Weldanpower"? this welder uses a wired ground, not a grounded base. thank you!**
A: I couldn't say for your case ??  There is a ground post on this unit though, if that helps.  I used this for aviation purposes

## Frequently Bought Together

- MRELC New Hot Rod Starter Relay Solenoid 12V Heavy Duty SW3 Compatible with 1956-up and B-6A-11450A C6AF C7AF C3912 C9AF D2AF11450AA 50-430
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**Shop now:** [https://www.desertcart.us/products/854988432-new-hot-rod-starter-relay-solenoid-12v-heavy-duty-sw3](https://www.desertcart.us/products/854988432-new-hot-rod-starter-relay-solenoid-12v-heavy-duty-sw3)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-26*