PARTSRUN

PARTSRUN Spark Plug Boot 7MM Replaces Briggs & Stratton 66538S | Fits Most B&S Mowers 135-081 ZF015

High-performance patio lawn and garden made for confident daily results

$11.21

3 shoppers currently have this item in cart.

Low stock: only 5 left in inventory. Add to cart before it's gone.

Shop Pay installment options may appear at checkout where eligible.

Free shipping Secure checkout 100% refund eligible
Bundle & save Buy 2 and save checkout time

Premium patio lawn and garden quality selected for United States (USA) customers.

Routine pack Build your routine pack (3)

Fast dispatch with always-free shipping and secure checkout on every order.

Free shipping

i

Free shipping on every order. Fast dispatch, tracked delivery, and secure checkout included.

Easy returns

i

Simple return flow and responsive support for eligible items.

Peak-demand shipping delays

i

During high demand, deliveries may experience short carrier delays. Tracking updates remain active for every order.

24/7 customer support

Questions before checkout? Our team is available and ready to help.

Share

Why customers choose PatioZora Garden

Meet PARTSRUN Spark Plug Boot 7MM

The PARTSRUN Spark Plug Boot 7MM is built for everyday lawn care, delivering a dependable connection for 7mm spark plug wires. It’s designed to slot into Briggs & Stratton ignition systems and serves as a practical replacement for several OEM boots, including 4124, 493880, 493880S, 66538, and 66538S. This compatibility opens up opportunities to keep your mower in regular use without the hassle of hunting down hard-to-find components.

Key compatibility

Engineered to work with Briggs & Stratton engines commonly found on residential mowers, including models associated with the 135-081 and ZF015 references. The 7MM wire design supports a broad range of ignition setups, making it a solid option for routine maintenance on many B&S machines.

  • Replaces a broad set of OEM boot numbers for fewer part searches.
  • 7MM wire compatibility supports standard lawnmower ignition layouts.
  • Designed for use on typical home and small-business mowing equipment.

Why PARTSRUN

  • Ships fast from the USA, helping you minimize downtime during mowing season.
  • The PARTSRUN team responds to questions within 24 hours, helping you get back on track quickly.
  • Easy-to-handle replacement that fits common Briggs & Stratton ignition configurations.

Real-world use scenarios

Imagine swapping in a fresh boot on a busy weekend to restore reliable starts. In seasonal maintenance, replacing a worn boot can help ensure consistent spark delivery on Briggs & Stratton engines, potentially supporting smoother operation across various mower tasks from edging to power raking.

Notes on benefits

Results can vary by mower and usage, but the boot’s compatibility with 7MM wiring and Briggs & Stratton ignition layouts makes it a practical part of routine maintenance. Consider it as a thoughtful addition to a mower parts kit, especially if you service models tied to 135-081 or ZF015 references.

FAQ

Q: What OEM parts does the PARTSRUN Spark Plug Boot 7MM replace?

A: Replaces Briggs & Stratton OEM 4124, 493880, 493880S, 66538, and 66538S.

Q: Is this boot compatible with most Briggs & Stratton lawn mowers?

A: Yes, it is designed for 7mm wire and fits models such as 135-081 and ZF015.