The right rear flap protects your mower’s undercarriage from debris while reducing dust and grass blowback. This guide highlights five compatible rear flap options for popular 20″ cordless and small gas mowers, helping you choose durable, easy-to-install parts that extend service life and improve cutting efficiency. Below is a quick overview table of the selected products.
| Product | Brand | Model Compatibility | Notes |
|---|---|---|---|
| 534779001 Front/Rear Flap (16″ Skirt) | LEAFLEX | Ryobi 40V 20″ / RY40107, RY40108, RY40109, RY401011, RY401012; Smart Trek RY40LM03, RY40LM30 | Sturdy replacement with updated part numbers |
| 06761-VG3-305 Rear Trail Shield | Rvanv | Honda HRR216, HRS216, HRT216 series | Helps protect undercarriage from debris |
| 534779001 Rear Skirt/Guard Flap (Ryobi) | Rvanv | RY40107, RY40108, RY40109, RY401011, RY401012, Smart Trek RY40LM03 | Designed for Ryobi 40V 20″ mowers |
| 534779001 Rear Skirt Guard Flap (Ryobi)* | SurpLee | RY40107, RY40108, RY40109, RY401011, RY401012, RY40LM03 | Rear shield/guard flap replacement |
| MWEDP 120-5218 Rear Baffle & 115-8420 Shield Flap | MWEDP | Toro 22″ walk-behind / Recycler models | Versatile for multiple Toro models |
Rear Flap Replacement For Ryobi 40V 20″ Mowers

Part Number: 534779001, replaces 527549001. Compatible with Ryobi models including RY40107, RY40108, RY40109, RY401011, RY401012, as well as Smart Trek RY40LM03 and RY40LM30. This flap helps shield the mower’s internal components from debris, reducing blade contact and wear. Material is reinforced plastic designed to withstand regular mowing tasks. Installation is intended to be straightforward for compatible models.
Honda Rear Trail Shield/Guard Flap Kit

Model-specific protection kit for Honda lawn mowers in the Hrr216, Hrs216, and Hrt216 families, including HRR216K2, HRS216K2, HRT216K1. The rear trail shield helps guard the undercarriage against dirt and clippings, supporting longer mower life and reducing maintenance needs. Designed to maintain warranty compliance while offering a secure fit for listed models.
Ryobi Compatible Rear Skirt/Guard Flap

Rear skirt/guard flap designed for Ryobi 40V 20″ cordless mowers, including RY40107, RY40108, RY40109, RY401011, RY401012, and Smart Trek RY40LM03, RY40LM30. This flap measures 16″ long and is built to prevent debris from entering the engine bay while guarding the mower’s exterior from wear. The material emphasizes durability and a secure user-friendly fit, aiming to maintain cutting efficiency.
Ryobi/Smart Trek Rear Guard Flap (SurpLee)

Replaces part 527549001 and targeted at Ryobi 40V 20″ cordless mowers. The flap acts as a rear apron or Fender shield to keep dust and grass from entering the mower’s underside. Constructed from reinforced soft plastic, it emphasizes a balance of flexibility and durability for repeated mowing cycles.
Toro Rear Baffle & Trailing Shield Flap

Compatible with Toro 22″ walk-behind lawnmowers and Recycler models, including 20330, 20331, 20339, 20350, 20351, 20370, and related variants. The kit includes rear baffle parts 120-5218 and trailing shield flap 115-1843, providing robust protection for the mower’s rear area and improving debris deflection for smoother operation.
Buying Guide: Key Purchase Considerations
- Model compatibility: Verify exact mower models and years listed by the seller to ensure proper fit and function.
- Material durability: Look for reinforced plastics or composite materials designed to resist wear from grass, dirt, and moisture.
- Installation ease: Choose flaps with straightforward mounting hardware or clear instructions to minimize downtime.
- Function and protection: Consider whether you need debris deflection, undercarriage protection, or a shield that reduces grass blowback.
- Replacement reliability: Prefer sellers offering verified part numbers and compatibility notes to avoid mismatches.
- Warranty and return policy: Check if the product includes a warranty or flexible return terms for assurance.
- Availability of multiple options: If one flap is unavailable, ensure the alternatives fit your mower model and provide similar protection.
When choosing between these rear flaps, evaluate your mower model’s specific requirements, the local mowing environment, and how often you replace parts. A properly fitting flap can extend mower life, keep debris out of critical areas, and maintain efficient cutting performance across seasons.