Knob Ext Thr .312-18X

Name: 1726839SM KNOB-EXT THR .312-18X
Brand: Briggs & Stratton
SKU: 1726839SM
Price: 6.76 USD
Availability: InStock

Genuine Briggs & Stratton OEM · Part number 1726839SM

The Knob Ext Thr .312-18X is a genuine Briggs & Stratton seats & controls part, OEM part number 1726839SM. Dykes Motors sells it for $6.76. 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.

Price and availability checked Oct 19, 2026

~~Market price $9.79~~ Save 31%

$6.76

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

In stock. Ships in 2 to 3 business days, arrives in 1 to 2 more — by Mon, Oct 26. Free shipping on every parts order. Free pickup at 3069 Hwy 49.

Genuine OEM part. Manufacturer warranty honored at our dealership.

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Fits these models

87 more models in the OEM parts diagram, unverified

Plus 27 more models. Text your model and serial number below and we confirm the exact fit.

Details

This is a genuine Briggs & Stratton OEM external threaded knob (.312-18X) used as a control or adjustment knob on small engines and equipment. Confirm your specific engine or equipment model number before ordering, as fitment varies by application. Briggs & Stratton OEM part number 1726839SM.

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 1726839SM

What machines does part 1726839SM fit?

We do not list a confirmed fitment for part 1726839SM on this page. Send the model and serial number of your machine to the parts desk and we will check it before you order.