Springs

Springs

Springs are small parts that do big work—maintaining tension, returning linkages, controlling valve motion, and keeping assemblies stable under vibration. Worn, stretched, or broken springs can cause noise, poor engagement, leaks, misfires, unsafe braking, or premature wear in connected components.

For related hardware, clamps, seals, and fastening essentials, see our Sealing & Fastening Parts category.

Common Spring Types

1. Valve Springs (Engine)

Designed to control valve closing force at RPM and temperature. Typically sold in sets (e.g., 12 pcs) for specific engines.

Typical symptoms: valve float, misfire, loss of power, and abnormal valvetrain noise.

2. Extension / Return Springs (Linkages & Controls)

Used to return levers, pedals, brake arms, and engagement mechanisms to a default position.

Typical symptoms: sluggish return, inconsistent engagement, binding, uneven feel, sudden loss of tension.

3. Deck Engagement / Mower Springs

Support belt tensioning and engagement/disengagement on lawn & garden equipment.

Typical symptoms: belt slip, poor engagement, vibration, and frequent belt wear.

4. Exhaust Springs (Powersports / Small Engines)

Hold exhaust components under vibration and thermal cycling.

Typical symptoms: rattling, exhaust leaks at joints, broken mounts, and frequent fastener loosening.

Find the Right Spring

Springs are easy to “almost match” and still be wrong. Use this checklist to get the correct fit:

1. Equipment/engine model (and year/series if applicable)

2. OEM / part number (best match method)

3. Spring specs (as needed):

• spring type (extension/compression/torsion)
• free length, outer diameter, wire diameter
• hook/end style (loop, swivel, tang, etc.)
• quantity per set (2-pack, 4-pack, 10-pack, 12-pack)

For complementary items like seals, clamps, and fastening hardware, browse Sealing & Fastening Parts.