Spring Torsion Lfthd

Name: 166X40MA SPRING TORSION LFTHD
Brand: Briggs & Stratton
SKU: 166X40MA

Genuine Briggs & Stratton OEM · Part number 166X40MA

The Spring Torsion Lfthd is a genuine Briggs & Stratton hardware part, OEM part number 166X40MA. Dykes Motors sells it for $5.60. 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 18, 2026

$5.60

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 Fri, Oct 23. 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

769 more models in the OEM parts diagram, unverified

Plus 709 more models. Text your model and serial number below and we confirm the exact fit.

Details

This is a genuine Briggs & Stratton OEM torsion spring (left-hand lift) used in the overhead valve mechanism of compatible engines. Before ordering, confirm your specific engine or equipment model number matches the fitment list on this page, as this part is model-specific. Part number 166X40MA.

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 166X40MA

What machines does part 166X40MA fit?

We do not list a confirmed fitment for part 166X40MA on this page. Send the model and serial number of your machine to the parts desk and we will check it before you order.