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2026 Black Rear Seat Cushion Set for EZGO TXT: Fitment and Compliance

The Black Golf Cart Rear Seat Cushion Set for EZGO TXT, ST, ST Sport and Valor is a two-piece direct-fit set, SKU 6B93BC-57. It is molded for the EZGO TXT platform across model years 1996 through 2026 and also covers the ST, ST Sport and MPT variants, plus the 2026 Valor 48V AC-drive cart.

Textron Specialized Vehicles (NYSE: TXT) sets the 2026 NEV/LSV interior durability thresholds this set is built around. The skin is SAE J2412 UV-stabilized marine-grade vinyl over 2.2 lb/ft³ high-resilience polyurethane foam. It passes FMVSS 302 horizontal burn-rate testing and ISO 3795 interior flammability standards, the same benchmarks Ford, GM and Toyota apply to their LSV-adjacent low-speed fleet programs.

The 2026 update adds enhanced UV inhibitors and a revised foam density matrix that resists compression set beyond 10,000 duty cycles. That tracks Textron service bulletin TSV-SB-2026-014 for model-year 2026 interior parts.

Compatible Models at a Glance

• EZGO TXT: model years 1996 through 2026, gas (EX1) and electric
• EZGO ST and ST Sport: including ST Sport trims with accent lighting
• Valor: the 2026 48V AC-drive cart, with or without the factory rear flip-seat kit
• MPT: TXT-platform derivatives

Club Car and Yamaha carts are out of scope. This set is precision-molded for Textron EZGO TXT platform geometry, and KOEEP keeps a dedicated cross-reference catalog for those brands. For the wider cabin line, browse the interior parts collection.

How the Tri-Layer Build Holds Up

Where budget cushions delaminate within 18-24 months, this set is projected to run 6-8 years under normal duty cycles. Severe commercial fleet use shortens that to 4-5 years. Three layers do the work:

1. Outer shell: SAE J2412 marine-grade vinyl, UV-stabilized, 0.8 mm gauge, with hindered amine light stabilizers (HALS) at 0.5% concentration
2. Comfort core: 2.2 lb/ft³ high-resilience polyurethane, 98% closed-cell, ASTM D3574 compliant
3. Backing: 0.125″ HDPE moisture-barrier backing board

UV Defense: 2,500+ kJ/m²

The vinyl formulation locks HALS in at 0.5% concentration, the same chemistry GM specifies for BrightDrop interior panels. Under SAE J2412 testing the outer skin takes 2,500+ kJ/m² of UV exposure, roughly 5+ years of Florida sun, without cracking, fading or delaminating. That is the benchmark for 2026 Sunbelt fleet operators.

Foam Density and the ST Sport Collapse Problem

Open-cell foam below 1.8 lb/ft³ density is a documented weak point on the ST Sport. Its stiffer mono-leaf rear suspension feeds high-frequency vibration into the seat pan and fatigues foam cell walls within about a year.

The 98% closed-cell HR foam in this set resists that fatigue and blocks the moisture ingress that can corrupt B-codes in the B0000-B0999 body control range. Independent durometer testing shows under 10% compression set after 8,000 cycles at 50% deflection.

Seams: #92 Thread, 3-Point Lockstitch

Every seam uses #92 UV-resistant polyester thread in a 3-point lockstitch pattern. That exceeds the SAE J855 pull-strength standard by 22% and survives the repeated pressure-wash cycles that rot out the #69 single-stitch thread on entry-level cushions.

DTC Families a Bad Cushion Can Trigger

A seat cushion never throws a code on its own. A loose or degraded one can. On 2026 CAN-bus 3.0 architectures the rear body harness routes along the seat frame rails, so a shifting cushion lets the frame chafe wiring or pinch connectors. Precision molding prevents four documented fault families:

The non-conductive foam substrate and isolated mounting points create zero CAN-bus interference across the U0000-U0099 network communication ranges on every 2026 EZGO trim fitted with the Textron BCM 4.2 module.

Full Specification Matrix

Data verified 2026-05-14. All values are production-spec measurements. For current pricing and fitment checks, see the official product page on KOEEP.

Against OEM Textron Part #607190

The OEM Textron cushion (Part #607190) runs TPO-coated vinyl at 0.75 mm gauge over 2.0 lb/ft³ PU foam, tuned to fleet cost targets. The KOEEP set upgrades both numbers: 0.8 mm SAE J2412 marine-grade vinyl and 2.2 lb/ft³ HR foam. That works out to about 15% greater tear resistance (ASTM D624, Die C) and 20% better compression-set resistance.

Dimensions are identical, so the fit does not change. For 2026 Valor owners who want an OEM-grade or better replacement at a competitive price point, this set covers it.

Installation and Care

• Pressure washing is rated at nozzle pressures up to 1,200 PSI from 18 inches or more. Keep direct spray off the seam junctions.
• Air-dry the cushions in the flipped-up position. Moisture trapped between cushion and seat pan is a known contributor to B0010-series body control DTCs on 2026 LSV-trimmed units.
• The multi-pattern molded hole array matches all OEM and aftermarket flip-seat frames back to the 1996 TXT launch. You bolt it on with basic hand tools, without drilling or adhesives.

The set ships in black only: one seat bottom cushion (37.4″ × 14.2″ × 3″) and one backrest cushion (35.4″ × 9″ × 2.8″). It carries a 1-year KOEEP warranty against manufacturing defects.

Order, Warranty and Fleet Support

Fleet buyers can send pricing inquiries through the KOEEP request-for-quote page. For warranty registration or DTC diagnostic support, email support@koeep.com or message the team on WhatsApp.

If your street-legal LSV also needs new rubber, KOEEP ranked 2024's best selling tires by performance and safety in a separate guide.

2026 FAQ: Codes, Fitment and Care