2 Pack Tension Spring 08320300 for ZTX ZT XL Ikon Zoom Ariens Gravely | Deck Spring Lawn Mower,Replace 08317600 039175 Review

Overview

This isn’t a lawn mower—it’s a critical replacement part for zero-turn mowers. The 2 Pack Tension Spring 08320300 is a pair of heavy-duty deck springs designed to fit ZTX, ZT, XL, Ikon, Zoom, Ariens, and Gravely models. It replaces older part numbers 08317600 and 039175, and it’s built for owners who need to restore proper belt tension on their mower deck after the original spring sags or snaps. If your deck belt is slipping, flopping, or making a racket, this kit is your fix.

Who Should Buy This

• Zero-turn owners with 1–5 acre properties – If you’re running a 48- to 72-inch deck on an Ariens or Gravely, this spring is a direct swap to keep your blades spinning true.
• DIY mechanics tired of dealer markups – Instead of paying $30+ for a single spring at a shop, this two-pack gives you a spare for the same cost as one OEM part.
• Homeowners who mow weekly and want consistent cut quality – A worn spring lets the belt slack, which reduces blade speed and leaves ragged grass. This restores factory tension.
• Fleet managers or rental property owners – Having a spare on hand means less downtime when a spring fails mid-season.

Key Features Breakdown

• Compatibility with ZTX, ZT, XL, Ikon, Zoom, Ariens, Gravely – This covers the most popular zero-turn chassis from the last decade. Check your model number (e.g., ZTX-48, ZT-52, Ikon XD) to confirm fitment.
• Replaces 08317600 and 039175 – These older part numbers were prone to stretching. The 08320300 revision uses slightly thicker wire gauge for longer life.
• 2-pack for $15.99 – That’s about $8 per spring. Most OEM singles run $12–18, so you’re getting a deal and a backup.
• Heavy-duty steel construction – The spring is coated to resist rust, which matters if you store your mower in a damp shed or wash the deck frequently.
• Pull-to-attach design – No tools needed for installation. Hook one end to the deck bracket, stretch it over the idler arm, and you’re done.
• Pre-stretched for consistent tension – Unlike cheap off-brands, these springs are factory-set to the correct free length, so you don’t have to guess.

Pros

1. Direct fit on most Ariens/Gravely decks – No bending, cutting, or drilling. Hook it on and go.
2. Two springs for the price of one OEM – You get a spare for the same money, which is smart if you mow a lot of acres.
3. Restores blade engagement – A weak spring causes the belt to slip under load, especially in thick grass. This fixes that.
4. Rust-resistant coating – Holds up better than bare steel springs in humid climates.
5. Easy installation – Even if you’ve never touched a mower deck, you can swap this in under 10 minutes.
6. Higher tension than old part numbers – The 08320300 is slightly stiffer, which reduces belt flutter at high RPM.

Cons

1. Not universal – This only fits the specific zero-turn models listed. Won’t work on John Deere, Cub Cadet, or Toro decks without modification.
2. Coating can chip over time – The black paint finish is decent, but it will wear off after a season of heavy use in wet grass.
3. One spring may be too tight for older decks – If your idler arm has worn bushings, the extra tension can accelerate wear. Check your arm pivot before installing.
4. Packaging is basic – They come loose in a poly bag. Not a dealbreaker, but don’t expect a branded box.

Bottom Line

If you own an Ariens or Gravely zero-turn and your deck belt is getting loose, the 2 Pack Tension Spring 08320300 is a no-brainer upgrade. It’s cheaper than buying OEM singles, fits without fuss, and restores the belt tension that keeps your cut clean. The only caveat is compatibility—double-check your model number before buying. For most ZTX, ZT, XL, Ikon, and Zoom owners, this is the exact fix you need. I’d buy it for the spare alone.

Frequently Asked Questions

Will this spring fit my Ariens Ikon XD 52?
Yes, if your deck uses the 08320300 part number. This applies to most Ikon XD models from 2015 onward. Verify by checking your deck’s idler arm setup—if it has a single spring pulling the tensioner pulley, this is likely the right one.

How do I know if my spring is actually worn out?
Measure the free length of your old spring (uninstalled). A new 08320300 spring is about 4.5 inches long at rest. If yours is stretched to 5 inches or more, it’s lost tension. Also, if the belt slips when you engage the blades in tall grass, replace the spring first.

Can I use just one spring from this pack?
Yes. The pack is two identical springs, but your deck only needs one. Keep the second as a spare or use it if you have a dual-spring setup on a wider deck (rare, but check your manual).