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Black Golf Cart Rear Seat Cushion Set for EZGO TXT, ST, ST Sport & Valor — 2026 Technical Compliance & Fitment Guide
One Kit for the Whole EZGO TXT Platform
The rear bench catches full sun, sprinkler runoff, and every hose-down. When one cushion goes, the other follows. The Black Golf Cart Rear Seat Cushion Set for EZGO TXT, ST, ST Sport & Valor Models replaces both as a matched 2-piece kit — backrest plus seat bottom.
It is built to 2026 OEM fitment standards across the TXT-heritage platform, including the 2026 E-Z-GO Valor — a 48V AC-drive, 4-passenger PTV on the steel-frame chassis EZGO has run since 1996.
- Fitment: TXT (1994.5+), ST, ST Sport, all Valor trims, RXV rear bench configs.
- Vinyl: marine-grade, UV-stabilized — 1,000+ hours per ASTM G154 — anti-mildew per ISO 846.
- Foam: closed-cell HR polyurethane at 40–50 kg/m³, matching or beating factory Valor and TXT compression specs.
Material: What Changed After 2025
Most 2024–2025 aftermarket cushions used standard automotive vinyl rated 300–500 UV hours. This set clears the 1,000-hour accelerated weathering benchmark (ASTM G154 Cycle 1), and its topcoat carries an anti-fungal agent tested to ISO 846:2019 Method A — the spec that counts in humid coastal and tropical duty.
Closed-Cell HR Foam
The substrate is closed-cell, high-resilience polyurethane with a compression load deflection of 4.5–5.5 kPa at 40% compression — the firm-yet-compliant profile of 2026 MY EZGO factory seating. Open-cell foams soak up moisture and degrade within 2–3 seasons; closed-cell resists the water ingress that kills rear-facing seats.
HDPE Backing, Polymer-Level Color
The black pigment is UV-encapsulated at the polymer level, not surface-coated, so it skips the chalky oxidation that hits economy black vinyl after 18–24 months outside. The backing is HDPE — not MDF — so wet/dry cycles cannot cause swell-induced delamination, a detail several municipal fleet RFPs now specify.
Specification Matrix — 2026 OEM Cross-Reference
| Specification | Koeep Black Rear Cushion Set | EZGO OEM (2026 TXT/Valor) |
|---|---|---|
| Vinyl type | Marine-grade, UV-stabilized, anti-fungal | Automotive-grade vinyl, UV-treated |
| UV resistance (ASTM G154) | 1,000+ hours | 500–650 hours |
| Foam density | 40–50 kg/m³ (HR, closed-cell) | 38–45 kg/m³ (polyurethane, semi-closed) |
| Backing substrate | HDPE (waterproof, rot-proof) | Treated plywood / HDPE (varies by trim) |
| Anti-mildew standard | ISO 846:2019 Method A compliant | Manufacturer proprietary |
| Colorfastness (AATCC 16.3) | Grade 4–5 (200 hrs Xenon arc) | Grade 4 |
| Compatible models (2026 MY) | TXT, ST, ST Sport, Valor, RXV (rear bench configs) | Model-specific SKUs |
Fitment: Bolt Pattern, Flip-Down Frames, Lithium Clearance
No Re-Drilling
The universal rear-seat bolt pattern measures 9.5 in center-to-center on the backrest and 10.2 in on the bottom cushion — a match for EZGO OEM seat frame P/N 71611G08 and aftermarket equivalents. Dimensions are cross-compatible with all standard TXT-platform flip-down rear seat frames, including MadJax Genesis and MODZ Flip4 kits.
Safe Over Lithium Packs
On TXT-platform lithium configurations — including the Samsung SDI packs in 2026 Valor models — the set keeps OEM clearance above the battery compartment. HDPE backing is non-conductive and stable to 85°C, above the 55–60°C peak case temperature of 2026 48V packs under maximum regen braking. The 1.25 in passive-cooling air gap stays intact, and the BMS diagnostic LED or display remains visible.
⚠ Installation note: disconnect the 48V main battery disconnect before removing or installing rear seat assemblies on 2026 lithium-equipped models. Verify BMS harness routing and retention clip engagement near the rear seat mount points on Valor configurations before final torque of the seat frame bolts (M8 Grade 8.8, 22–25 N·m).
DTC Check: Why the Swap Stays Silent
Rear cushions are passive and non-electronic. The 2026 EZGO CAN-bus 3.0 architecture monitors the BMS, motor controller, and instrument cluster nodes — not seat presence on rear benches. Cushion replacement triggers no U0000–U0300 CAN communication faults and no body-system B-codes.
For your scan tool: 2026 lithium BMS DTCs sit in the manufacturer-specific $7000–$7FFF range, and motor controller faults follow the Curtis/Delta tables (0-1 through 4-4). A cushion swap touches none of them. After seat work, run a key-cycle reset — tow/run switch OFF for over 30 seconds, then ON — to clear spurious BMS timeouts.
If your rear seat kit adds integrated LED lighting or USB ports, isolate the 12V reducer circuit. Bad grounds induce CAN-bus noise and generate spurious U-code faults on 2026 RXV and Valor platforms.
Service Life and Fleet Planning
In USDA Plant Hardiness Zones 8–10 with uncovered outdoor storage, expect 5–7 years of structural integrity versus 3–5 years for standard OEM vinyl. Wear shifts to the stitch points — inspect seams every 24 months and replace at the earlier of stitching failure, foam compression set over 25% of original thickness, or UV cracking deeper than 2 mm.
The TXT platform, including ST, ST Sport, and Valor derivatives, runs through Model Year 2027+ with backward compatibility to 1994.5–2025 — inside the 2026–2030 fleet window. Warranty runs 2 years on materials and workmanship with lot-coded manufacturing dates. The HDPE backing also closes the MDF moisture-ingress failure mode in Textron service bulletin SB-2024-TXT-003.
Where to Order
Order the Black Golf Cart Rear Seat Cushion Set for EZGO TXT, ST, ST Sport & Valor models direct from the product page. Koeep stocks the same set under two more catalog entries — one for TXT, ST, ST Sport and Valor builds and a second entry for the identical set — useful when matching an older order reference on a fleet purchase.
Refreshing the whole cabin? The Interior Auto Parts catalog at Koeep groups cushions, covers, and trim in one place. For other high-wear parts, the guide to 2024's Best Selling Tires Ranked by Performance and Safety is a quick read on what lasts.
Fleet and volume buyers: send quantities via the request-for-quote page, email support@koeep.com, or message the team on WhatsApp.
Diagnostic FAQ — 2026 Questions, Straight Answers
Why does the rear cushion on my 2026 Valor feel softer than the front seats after 6 months?
Entry-level Valor trims spec rear foam lower — about 35 kg/m³ — than the front seats, so the bench sags first. This set runs 40–50 kg/m³ HR foam on both cushions. If sag comes with a BMS thermal-throttling DTC, check under-seat ventilation: the HDPE backing keeps the OEM 1.25 in cooling gap.
Will installing these cushions trigger a DTC on 2026 CAN-bus EZGO models?
No. The swap is passive and non-electronic; CAN-bus 3.0 does not monitor rear seat presence, so no U0000–U0300 network faults or body B-codes are expected. If your rear seat kit adds LED lighting or USB ports, isolate the 12V reducer circuit — bad grounds throw spurious U-codes on RXV and Valor.
Are these cushions compatible with the 2026 factory lithium-ion BMS under the rear seat?
Yes. They hold OEM clearance above the battery compartment on all TXT-platform lithium configurations, including the Samsung SDI packs in 2026 Valor models. HDPE backing is non-conductive and stable to 85°C — above the 55–60°C peak under max regen — and the BMS access panel stays reachable.
Will this set fit a flip-down rear seat conversion kit?
Yes. Dimensions are cross-compatible with all standard TXT-platform flip-down frames, including MadJax Genesis and MODZ Flip4 kits. The 9.5 in / 10.2 in bolt pattern matches EZGO OEM seat frame P/N 71611G08 — no re-drilling.
How long will these cushions last compared to 2026 OEM rear cushions?
Expect 5–7 years of structural integrity versus 3–5 for standard OEM vinyl in USDA Zones 8–10 with uncovered storage. Inspect seams every 24 months; replace on stitching failure, compression set over 25%, or UV cracking deeper than 2 mm.
Will the vinyl grow mildew in a humid coastal climate?
That is what the ISO 846:2019 Method A anti-fungal treatment is for. With closed-cell foam that resists water ingress — open-cell degrades in 2–3 seasons — the set is built for humid coastal and tropical duty.
Ready to Restore the Rear Bench?
Order the Black Rear Seat Cushion Set for EZGO TXT, ST, ST Sport & Valor models — marine vinyl at 1,000+ UV hours, 40–50 kg/m³ HR foam, 2-year warranty.
Bulk orders: request a quote, email support, or message us on WhatsApp.
- ASTM G154 — fluorescent UV exposure practice; basis of the 1,000+ hour vinyl rating (Cycle 1).
- ISO 846:2019 Method A and AATCC 16.3 — anti-fungal treatment and colorfastness standards (Grade 4–5 at 200 hrs Xenon arc).
- Textron E-Z-GO service bulletin SB-2024-TXT-003 — moisture-ingress failure mode on MDF-backed cushions.
- EZGO OEM seat frame P/N 71611G08 — rear-seat bolt pattern reference (9.5 in backrest, 10.2 in bottom cushion).
- Black Golf Cart Rear Seat Cushion Set For EZGO TxT, ST, ST Sport, Valor models — main product page.
- Related catalog entry and additional entry — same cushion set.
- Interior Auto Parts | Koeep Quality Car & Motorcycle Accessories — full interior catalog.
- 2024's Best Selling Tires Ranked by Performance and Safety — related Koeep buying guide.