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Lawn mower ratchet return spring. Helps allow drive wheel to move backwards when forward drive is not engaged

Extension spring, .380 x 2.500

Lawn mower idler return spring.

Spring-extension

Spring, traction idler

Small engine governor spring. If the engine does not maintain a consistent speed, then the governor spring may be stretched out or damaged.

Spring kit, motor slide-plate

Spring-return

Spring-spool

Spring-extension (brake)

Mower Deck Idler Arm Return Spring

Husqvarna lawn mower extension spring.

Spring, select lever

Briggs & Stratton air vane spring.

Throttle Return Spring
Springs are hidden heroes in your lawn mower—they control blade engagement, manage throttle response, hold levers in place, and absorb shock during operation. When a spring breaks, stretches, or loses tension, you'll notice sluggish controls, blades that won't stay engaged, or handles that feel loose. Repair Clinic stocks genuine OEM lawn mower springs for every major brand and model, ensuring your mower's control systems work with precision and safety every time you mow.
Common spring failures include broken return springs on throttle cables, worn-out PTO blade engagement springs, and damaged deck lift springs that make deck height adjustment difficult. Replace springs promptly—they're affordable and prevent cascading damage to control linkages. Find your lawn mower spring parts by model number and restore smooth operation.
The throttle lever will stick in the full-throttle position or fail to return to idle when you release it. This forces the engine to run at constant high speed, wasting fuel and increasing wear. A broken throttle return spring is unsafe and should be replaced immediately—order the OEM spring for your model to restore normal throttle response.
If your blades disengage unexpectedly during mowing, engage slowly or inconsistently, or require repeated lever pulling to stay active, the PTO engagement spring is likely worn. Weak springs lose their tension and can't hold the blade clutch in the engaged position. Replacing this spring is a straightforward fix that dramatically improves cutting reliability.
Deck lift springs deteriorate under constant load and vibration. When they weaken, you'll struggle to move the deck up or down, or the deck may sag on one side. Broken springs can't support the deck weight, making safe, level mowing impossible. Replace all deck lift springs together—OEM parts ensure balanced support and even cutting height across the full deck width.
Enter your mower's brand and model number—found on the main chassis badge or engine housing—into our parts finder. We'll show all available spring assemblies and individual springs compatible with your machine, labeled by function (throttle, blade engagement, deck lift, etc.). If you need help identifying your model, our experts are ready to assist.


Ensure your Lawn Mower operates smoothly with genuine OEM spring replacement parts from Repair Clinic. Lawn mower springs are important for maintaining tension and functionality in various mower parts, ensuring reliable operation. Use our model number lookup to find the precise spring part for your lawn mower, and benefit from same-day shipping and our Price Match Guarantee. Need installation help? Visit our Lawn Mower Repair Help page for expert guidance or find additional Lawn Mower Spring Parts for more solutions.
Check the engine housing, mower frame near the blade deck, or the area under the seat for a label or stamped plate showing your lawn mower's model number. Write down the complete number, including letters, numbers, and hyphens, because similar-looking mowers can use different parts. Enter it in the model number search to pull up the parts matched to your unit. The results narrow the full lawn mower catalog, not just the spring selection, to parts listed for your specific machine. With the correct model identified first, you can compare compatible parts quickly and avoid ordering based on appearance alone. That means fewer wrong orders and a faster repair.

Lawn Mower problems usually trace back to a handful of common causes, and Repair Clinic's online resources help you find them fast. Symptom articles, diagnostic videos, and part testing walkthroughs guide you through the checks that isolate the failed part. Once identified, look it up by model number and follow the installation guide to complete the fix.

Repair Clinic has five ways for you to stop your lawn mower from leaking gas. Before we get to those, let's review how the gasoline you pour into the tank powers the mower.

Why does your lawn mower battery keep dying? Repair Clinic has done the research and this article will provide some answers, starting with what a battery's purpose is on a gas-powered lawn mower.

What's causing that black smoke to billow out of the engine? There are three likely reasons and they are all related to how a gas-powered lawn mower engine operates.