Week Parts Sale, ends Saturday Sale prices shown on every part.

NUT, 1/4-10 Speed J

Name: 578109MA NUT, 1/4-10 SPEED J
Brand: Briggs & Stratton
SKU: 578109MA
Price: 5.52 USD
Availability: InStock

Genuine Briggs & Stratton OEM · Part number 578109MA

The NUT, 1/4-10 Speed J is a genuine Briggs & Stratton hardware part, OEM part number 578109MA. Dykes Motors sells it for $5.52. It is in stock to order online, or you can pick it up at our store. Not sure it fits your machine? Send the model and serial number to the parts desk before you order. Dykes Motors is an authorized Bobcat, LS Tractor, and Ferris dealer with genuine parts and service on site.

Price and availability checked Oct 10, 2026

~~Regular price $11.02~~ Week sale: Save 50%

$5.52

We accept Visa, Mastercard, American Express, Discover, Apple Pay, Google Pay, Amazon Pay, PayPal, Venmo, and Klarna.

In stock. Ships within 1 business day, arrives in 1 to 2 more — by Thu, Oct 15. Free shipping on every parts order. Free pickup at 3069 Hwy 49.

Genuine OEM part. Manufacturer warranty honored at our dealership.

Authorized Briggs and Stratton Dealer

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Fits these models

160 more models in the OEM parts diagram, unverified

Plus 100 more models. Text your model and serial number below and we confirm the exact fit.

Details

This is a genuine Briggs & Stratton 1/4-10 speed nut, OEM part number 578109MA. It's a fastener used in engine assembly and component attachment. Confirm your specific engine or equipment model number before ordering, as fitment varies—a detailed compatibility list is available on this page.

Verify your fitment before you order

Text your equipment model and serial number to 601.516.7255 and we confirm the exact part before you pay. Prefer to talk? Call (601) 516-7255.

Questions about part 578109MA

What machines does part 578109MA fit?

We do not list a confirmed fitment for part 578109MA on this page. Send the model and serial number of your machine to the parts desk and we will check it before you order.