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What the 2026 Rear Seat Cushion Set Delivers

The Black Golf Cart Rear Seat Cushion Set for EZGO TXT, ST, ST Sport, and Valor models is a direct-fit aftermarket replacement built to 2026 OEM material protocols. You get two cushions: a seat bottom at 37.4″ × 14.2″ × 3″ and a backrest at 35.4″ × 9.9″ × 3″.

The outer skin is marine-grade vinyl with integrated UV inhibitors rated to ASTM G154 Cycle 1. The core is high-density polyurethane foam at 1.8–2.5 lb/ft³, matching the density envelope specified by FMVSS 302 for flammability compliance and SAE J369 durability benchmarks. Waterproof stitching, a moisture-barrier substrate layer, and heat-sealed stitch-free seams keep mildew out of the foam.

Quick Specs: KOEEP SKU 3452

All figures below come straight from the product data for SKU 3452.

Ordering note: the identical set also lives under two alternate catalog entries — the same cushion set for EZGO TXT, ST, ST Sport, and Valor and a second listing for the same fitment — so you can order the same SKU 3452 set from whichever page you land on.

Fitment: The TXT Heritage Lineage

If your cart sits on the TXT platform, this set bolts on. The 2026 Valor is E-Z-GO's entry-level 48V AC-drive personal cart at roughly $9,500–$11,500 delivered, and it carries the lineage Textron Inc. (NYSE: TXT) launched with the 1996 TXT.

• EZGO TXT — 1996 to present. The original platform launch.
• EZGO ST — 2003 through 2013.
• EZGO ST Sport — 2008 through 2013.
• EZGO Valor — 2014 through 2026. Same rear seat geometry as the TXT.

All four models share identical rear seat mounting geometry, the same flip-seat hinge assembly, and the same bolt-pattern dimensions. Bodies and seat frames are fully interchangeable — one reason fleet operators with mixed TXT/Valor inventories keep SKU counts down.

What it does not fit: the 2026 RXV (the flagship) and the Liberty (4-forward). Those two run different seat architecture, and no adapter changes that.

No Electronics Involved

The set is purely mechanical with no electronic interface, so CAN-bus generation is irrelevant — including the 2026 RXV CAN-bus 3.0 architecture. Physical seat architecture is the only fitment limit.

Materials: Vinyl, Seams, and Foam

Marine-Grade Vinyl and UV Resistance

The outer skin uses marine-grade vinyl with UV-absorbing benzotriazole stabilizers. In 2026 aftermarket testing it shows a 4:1 service-life ratio versus standard automotive vinyl under 2,000+ hours of ASTM G154 UV-B radiation. In Arizona, Florida, Texas, or California, that ratio is the difference between seasonal replacements and a 5–7 year cushion.

Heat-Sealed Seams and the Moisture Barrier

Stitched vinyl fails predictably: moisture wicks through needle holes into the foam and drives hydrolytic degradation. Heat-sealed, stitch-free seams remove that path, and the moisture-barrier film over the plywood prevents delamination — matching Textron's 2026 E-Z-GO RXV material upgrade philosophy of zero-maintenance longevity for fleet operators.

High-Density Foam Core

The 3-inch cushions use open-cell polyurethane at 1.8–2.5 lb/ft³ with an ILD (indentation load deflection) of roughly 33–45 lbs — the sweet spot that balances initial plushness with compression-set resistance. Entry-level fleet carts run 1.2–1.5 lb/ft³ foam that bottoms out in 18–24 months, putting the plywood under the passenger.

On chemistry: PLA-derived bio-polyols (led by Synbra Technology B.V. patent families) are monitored for 2026 but not yet cost-viable for the golf cart aftermarket — petroleum-based PU remains the standard through 2026–2030.

Head-to-Head: KOEEP vs 2026 OEM vs Generic

The practical read: seams decide how water gets in, foam density decides when you feel the plywood, and the barrier decides whether the plywood survives. Generic "universal" sets often need modification and carry only 30–90 day warranties.

Maintenance: Reaching the Full 5–7 Year Life

The 5–7 year projection through the 2026–2030 window holds only with basic care. Four habits do most of the work:

• Apply a marine-grade vinyl protectant (e.g., 303 Aerospace Protectant) every 90 days to replenish UV inhibitors.
• Clean with pH-neutral soap and water only — never petroleum-based cleaners.
• Store outdoor carts under a breathable 600-denier cover; non-breathable covers trap condensation and feed mildew.
• Inspect mounting bolts annually. The 2026 Valor's steel frame can transfer galvanic corrosion to bolt threads in coastal air — swap to stainless steel hardware if corrosion shows.

Seat foam handles most of the ride, but not all of it — what reaches the frame also depends on tires. If vibration is on your list, see KOEEP's ranking of 2024's best-selling tires by performance and safety. For other cabin parts, browse the KOEEP interior collection.

Fleet Notes: One SKU, Three Decades of Carts

This single SKU covers the entire TXT-lineage rear seat across a 30-year production span — a 1996 TXT and a 2026 Valor take the same cushions, with interchangeability through at least the 2030 model cycle. That turns a mixed fleet's seat inventory into one line item.

Bulk orders run through KOEEP's request-for-quote page. For fitment questions, reach the team at support@koeep.com or on WhatsApp.

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