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2026 Black Golf Cart Rear Seat Cushion Set for EZGO TXT, ST, ST Sport & Valor — Technical Specs, DTC Compatibility & OEM Cross-Reference
Start here: what this set replaces
If the rear bench on your EZGO is cracked, flat, or faded, the Black Golf Cart Rear Seat Cushion Set for EZGO TXT, ST, ST Sport & Valor replaces the whole rear cushion assembly in one order — vinyl cover, foam core, moisture barrier, and mounting hardware included.
Fitment is wide: EZGO TXT from 1996 through 2026, ST from 2009, ST Sport from 2012, Valor from 2020. It also covers 2026 CAN-bus 3.0 fleet variants, including rebadged EZGO units run by Ford Pro Fleet, GM BrightDrop, and Toyota Material Handling fleets. It is built to 2026 OEM-grade durability and comfort benchmarks for fleet, resort, and private carts.
One number tells the story: 2.1 lb/ft³ foam at 44 lb IFD holds compression set below 8% across 2,500 fleet cycles (ASTM D3574). Generic aftermarket pads run 1.5–1.7 lb/ft³ with only 30,000–50,000 double rubs of abrasion life.
Key numbers at a glance
- Cover: 28 oz/yd² UV-C stabilized, phthalate-free marine vinyl
- Foam: 2.1 lb/ft³ high-resilience molded PU, 44 lb IFD at 25% deflection (ASTM D3574)
- Operating range: -20°F to 185°F
- Abrasion: 100,000 double rubs per ASTM D4157 Wyzenbeek
- Flammability: FMVSS 302 / SAE J369:2026, plus ISO 3795:2026
- Hygiene: anti-microbial stitching per ISO 20743:2026
- Service life: 5 years / 2,500 fleet rotation cycles
- Warranty: 3-year limited
How it is built: three layers, three jobs
Top layer — 28 oz/yd² marine vinyl
UV-C stabilized and phthalate-free, with ASTM D751 tensile of 75 lbf warp / 68 lbf fill. Cold-crack rating of -20°F per ASTM D2137, so winter storage will not split the cover. The same vinyl passes FMVSS 302 horizontal burn testing, certified under SAE J369:2026, with ISO 3795:2026 interior burn-rate compliance on top.
Mid layer — 6mm EVA moisture barrier
A 6mm closed-cell EVA (ethylene-vinyl acetate) sheet sits between cover and foam. It stops water from soaking the foam and reaching the electronics under the seat — the classic trigger for B16xx moisture codes on 2026 Valor carts whose BCM firmware reports B15xx-series body codes. The 2025 EZGO OEM seat has no such layer, and neither do generic pads.
Core — high-resilience molded foam
2.1 lb/ft³ HR molded polyurethane at 44 lb IFD. It holds consistent support from -20°F to 185°F and stays under 8% compression set through the full 5-year / 2,500-cycle rating. Thread and surface treatment carry ISO 20743:2026 anti-microbial compliance — standard here, not an upgrade — for shared carts in municipal and hospitality fleets.
DTC codes to watch after installation
The cushion is passive hardware and cannot throw a code by itself. A sloppy install or a worn aftermarket pad, though, can upset sensors and modules on 2026 EZGO CAN-bus carts. These are the ranges fleet techs should monitor post-installation:
| Code range | What it means and what to do |
|---|---|
| B1500–B1599 | Seat occupancy sensor and pressure mat circuit faults (Valor and ST Sport with OEM passenger detection). Seat the cushion evenly and torque the frame to 8–10 ft-lb. |
| B1600–B1699 | Under-seat BCM moisture ingress warnings. The 6mm EVA barrier in this set blocks the water path that sets these codes. |
| U0100–U0299 | Lost communication with the BCM — usually a pinched harness during cushion replacement. Verify routing before final torque-down. |
| P0A80–P0A9F | Hybrid and battery pack thermal codes on 2026 EZGO lithium fleet variants. Not seat-related; keep battery venting unobstructed after rear seat assembly. |
For standardized code retrieval on 2026 EZGO CAN-bus architectures, fleet diagnostics reference SAE J1979 / ISO 15031-6.
Installation notes that prevent callbacks
- Torque to 8–10 ft-lb. That is EZGO's spec for M8 rear seat frame bolts on TXT, ST, ST Sport, and Valor through 2026. Calibrated wrench, cross-pattern sequence.
- Do not over-torque. Extra squeeze compresses the cushion past its design tolerance and cuts service life.
- Use the included hardware. Stainless M8 bolts come pre-coated with thread-locking compound, so torque holds across thermal cycles.
- Check the sensor connector. Before clearing any B15xx code, make sure the occupancy sensor mat connector is fully seated.
- Protect outdoor fleets. Apply dielectric grease to the under-seat BCM connectors (EZGO part #625914) and keep the rear body drain plugs clear on the maintenance schedule.
Spec by spec: Koeep vs EZGO OEM vs generic aftermarket
| Specification | Koeep 2026 Cushion Set | EZGO OEM (2025 MY) | Generic Aftermarket |
|---|---|---|---|
| Cover material | 28 oz/yd² marine vinyl, UV-C stabilized | 24 oz/yd² standard marine vinyl | 18–22 oz/yd² economy vinyl |
| Foam density | 2.1 lb/ft³ HR PU, 44 lb IFD | 1.8 lb/ft³ conventional PU | 1.5–1.7 lb/ft³ low-density PU |
| Flammability standard | FMVSS 302 / SAE J369:2026 | FMVSS 302 / SAE J369:2023 | Uncertified |
| Anti-microbial | ISO 20743:2026 compliant | Not available | Not available |
| Moisture barrier | 6mm closed-cell EVA layer | None | None |
| Abrasion resistance | ASTM D4157 — 100,000 double rubs | ASTM D4157 — 75,000 double rubs | ASTM D4157 — 30,000–50,000 |
| Cold crack resistance | -20°F (ASTM D2137) | -10°F | 0°F to -5°F |
| Model compatibility | TXT (1996–2026), ST, ST Sport, Valor | Model-specific only | Varies / unverified |
| Warranty | 3-year limited | 1-year limited | Varies (often none) |
Read the abrasion row next to the warranty row. A 3-year limited warranty backed by 100,000 double rubs is a straightforward package. Generic pads often carry no warranty at all behind 30,000–50,000 double rubs.
OEM cross-reference and QA trace
Procurement teams can validate this set against EZGO part numbers 70876G01, 70876G02, and 70877G01 for the listed platforms.
Material and compliance trace
UV-C stabilization conforms to ASTM G154 Cycle 1 — 500 hours with a color shift under 5 ΔE. The phthalate-free formulation aligns with EPA TSCA Section 6(h) and EU REACH Annex XVII, which matters for municipalities and resorts carrying 2026 sustainability mandates.
Service life and fitment window
The SKU is rated 5 years / 2,500 fleet rotation cycles (2026–2030). Foam compression set stays below 8% per ASTM D3574 through the full lifecycle, and vinyl UV degradation stays below 5 ΔE through year 3 in southern-exposure outdoor storage. Fitment: TXT 1996–2026, ST 2009–2026, ST Sport 2012–2026, Valor 2020–2026.
Quality assurance trace
Every set carries a QR-coded QA batch label tied to ISO 9001:2015 manufacturing records, including lot-specific foam density certification and vinyl abrasion results. That traceability supports the ISO/TS 16949 supply-chain requirements more golf cart OEMs and Tier-1 fleet operators have adopted for 2026.
Rebadged fleet carts: yes, they fit
Toyota Material Handling and Ford Pro Fleet run rebadged EZGO TXT and Valor platforms with identical rear seat frame geometry, so this set is a direct-fit replacement for them. GM BrightDrop fleet variants fall under the same 2026 CAN-bus 3.0 mechanical-passive compatibility.
Measure before you order: the standard frame rail spacing is 38.5 inches center-to-center on these platforms.
FAQ: 2026 cushion set questions, answered
Will it work with 2026 CAN-bus 3.0 fleet carts?
Yes. The set is mechanically passive, so there is no electronic interference with CAN 2.0A/B or 3.0 networks. It is physically compatible with all EZGO TXT, ST, ST Sport, and Valor rear seat frames through 2026.
Does the vinyl meet FMVSS 302 and SAE J369?
Yes. The vinyl cover and foam substrate pass horizontal burn-rate testing per FMVSS 302, certified under SAE J369:2026, with ISO 3795:2026 interior material burn-rate compliance as well.
What foam density does it use?
2.1 lb/ft³ high-resilience molded polyurethane with 44 lb IFD at 25% deflection, ASTM D3574 compliant. Compression set stays below 8% across the rated 2,500 cycles.
Why did my 2026 Valor throw B1522 after an aftermarket cushion install?
B1522 is a seat occupancy sensor circuit intermittent fault. Cheap pads with inconsistent foam density or wrong bottom-surface geometry press unevenly on the OEM sensor mat. This set uses a precision-molded bottom profile that spreads pressure evenly, so false triggers stop. Make sure the sensor mat connector is fully seated before clearing the code.
How do I stop B16xx moisture codes on carts stored outside?
B1600–B1699 codes usually trace to water migrating through unsealed cushion seams. The integrated 6mm EVA barrier blocks that path. Add dielectric grease to the under-seat BCM connectors (EZGO part #625914) and keep the rear body drain plugs clear.
What is the correct torque for the rear seat frame bolts?
8–10 ft-lb for M8 bolts on all TXT, ST, ST Sport, and Valor models through 2026. Use a calibrated torque wrench and a cross-pattern sequence. Over-torquing compresses the cushion past design tolerance and shortens its life. The included stainless M8 hardware comes pre-coated with thread-locking compound.
Is the anti-microbial treatment standard or an upgrade?
Standard. Thread and surface treatment meet ISO 20743:2026 textile antibacterial efficacy — a real difference for shared carts in municipal and hospitality fleets.
How long will the set last in fleet rotation?
The rating is 5 years or 2,500 fleet rotation cycles, validated by ASTM D4157 Wyzenbeek abrasion testing at 100,000 double rubs. Vinyl UV degradation stays below 5 ΔE through year 3 in southern-exposure outdoor storage.
Ordering and support
Ready to swap that split rear bench? The full fitment list, spec sheet, and current price live on the product page.
Koeep carries the same rear cushion set on two more catalog pages — listing one and listing two — so if your first choice sells out, the set is one click away on either page.
Refreshing the whole cabin? The interior parts collection gathers Koeep's car and motorcycle interior accessories in one place. Seats are one wear item; for the rubber that meets the pavement, Koeep also ranked 2024's best-selling tires by performance and safety.
Fleet and volume orders
Buying multiple sets for a fleet? Send quantities and delivery details through the request-for-quote page for volume pricing.
Single-order questions go to support@koeep.com, or message the team directly on WhatsApp.
- Black Golf Cart Rear Seat Cushion Set for EZGO TXT, ST, ST Sport & Valor — Koeep product page
- Rear Seat Cushion Set for EZGO TXT, ST, ST Sport, Valor — alternate Koeep catalog listing
- Rear Seat Cushion Set for EZGO TXT, ST, ST Sport, Valor — alternate Koeep catalog listing
- Interior Auto Parts — Koeep car & motorcycle accessories collection
- 2024's Best Selling Tires Ranked by Performance and Safety — Koeep blog
- Request for Quote — Koeep fleet & volume ordering
- Technical references cited in the source data: FMVSS 302 / SAE J369:2026, ISO 3795:2026, ISO 20743:2026, ASTM D3574, D751, D2137, D4157, G154, SAE J1979 / ISO 15031-6, ISO 9001:2015, ISO/TS 16949