120-7037-03 Left Hand Deck Adjustment Hoc Plate & 120-7043 Arm Spring & 120-9535 Lever Grip Set Compatible with Toro 30" TimeMaster Mowers, Replace 120703703 120-7037-03

What It Is

This is a three-piece repair kit for the deck adjustment system on Toro 30" TimeMaster mowers. It includes the left-hand height adjustment hoc plate (120-7037-03), the arm spring (120-7043), and the lever grip set (120-9535), used to restore smooth, accurate cutting height changes on decks that have worn or broken components.

Fitment & Compatibility

Before buying, confirm your mower is a Toro 30" TimeMaster model (e.g., 20067, 20068, 20199, 20200, or 21199). This kit replaces OEM part numbers 120-7037-03, 120-7043, and 120-9535. Check your deck’s left-hand side—the plate mounts where the height adjustment lever connects to the deck. Measure the existing plate’s mounting hole spacing (typically ~2.5 inches center-to-center) to ensure match. Not compatible with 21" or 22" Toro mowers, or non-TimeMaster models. Aftermarket kit, not genuine Toro.

Key Things to Know

• Quality: Aftermarket steel plate and plastic grips are generally durable, but the spring may be slightly lighter than OEM—test tension during installation.
• Installation difficulty: Moderate. Requires removing the deck from the mower, detaching the old plate and spring, and reassembling. Basic hand tools (wrenches, pliers) and a bit of patience needed.
• Common gotchas: The lever grip can be tight to press onto the rod—use a rubber mallet or heat the grip with a hair dryer to soften it. The spring hooks must seat fully into the plate and deck bracket to avoid slipping.
• Check for rust: If the old plate is rusted or seized, penetrating oil (like WD-40) on bolts before removal saves frustration.

Should You Buy It

Buy this if your Toro 30" TimeMaster’s height adjustment lever is loose, won’t stay in position, or the plate is bent or cracked. It’s a cost-effective fix (under $25) that restores full adjustability without buying a new deck assembly. Skip it if you need a genuine Toro part (OEM is ~$40) or if your deck has major structural damage beyond these components.