2PK Genuine OEM Wright 13990023 Caster Bushing Stander 32" 36" 48" WSS Mowers

What It Is

This is a genuine OEM caster bushing set (2-pack, part #13990023) designed specifically for Wright Stander ZTR mowers with 32", 36", or 48" decks. It replaces worn bushings in the front caster wheels to reduce wobble, improve steering stability, and extend caster assembly life.

Fitment & Compatibility

• Exact fit for: Wright Stander models with 32", 36", and 48" cutting decks (WSS series). Not compatible with Wright Sentar or other non-Stander models.
• OEM vs aftermarket: This is genuine Wright OEM, so it matches factory specs exactly. Aftermarket equivalents may vary in material density and fit tolerance.
• What to measure: Before buying, remove one caster bushing and measure its inner diameter (ID) and outer diameter (OD). The OEM spec is approx. 0.75" ID x 1.25" OD x 0.75" height. Verify your caster fork and wheel bolt are not also worn—bushings alone won’t fix a bent fork or stripped bolt.
• Check deck size: Confirm your mower’s deck is one of the listed sizes. The part number 13990023 is shared across these decks, but verify your serial number against Wright’s parts diagram.

Key Things to Know

• Quality: Genuine OEM construction uses oil-impregnated bronze for durability. Aftermarket nylon or plastic bushings wear faster and may cause steering play within a season.
• Installation difficulty: Easy—no special tools needed. Remove caster wheel, press out old bushing (use a punch or socket), tap in new one with a mallet. Expect 15–20 minutes per side.
• Common gotcha: If your caster wheel is seized or the bolt is rusted, you may need penetrating oil and a breaker bar. Bushings only fix wobble from wear, not from a bent axle or damaged bearing race.
• Pack size: You get two bushings—enough for both front casters. No need to buy extras unless you have a 4-wheel model (Wright Stander uses 2 front casters).

Should You Buy It

If your Wright Stander has steering wobble, wandering, or uneven tire wear, this OEM bushing kit is the correct, cost-effective fix. It’s ideal for DIY owners who want factory-grade durability and a straightforward swap. Skip it if your caster fork or wheel bolt is damaged—bushings alone won’t solve structural issues.