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If the rear bench in your EZGO is cracked, sagging, or bleached gray, you have two options: pay for OEM cushions that repeat the same failure, or upgrade the materials. The Black Golf Cart Rear Seat Cushion Set for EZGO TXT, ST, ST Sport & Valor takes the second path — heavier vinyl, denser foam, tougher stitching — in a direct drop-in format covering model years 1996 through 2026.

Everything below comes from the 2026 product data: tested specs, OEM cross-reference numbers, and the four failure modes this set is built to fix.

Key Facts at a Glance

• Fitment: EZGO TXT, ST, ST Sport, and Valor, 1996–2026, non-suspended rear flip seats (EZGO P/N 72319-G01 platform)
• Vinyl: 28 oz/yd² marine-grade, UV-stabilized, benzotriazole + HALS inhibitor package
• Foam: 2.2 lb/ft³ cross-linked high-resiliency polyurethane, 38 lb ILD @ 25%
• UV validation: 500 hours ASTM G154 Cycle 1 (UVB-313), equal to 5+ years of South Florida sun
• Stitching: Tex 135 bonded UV polyester, 4 SPI lock-stitch perimeter seams
• SKU / warranty: KPE-EZ-RSC-BLK-26, 3-year limited warranty

Material Architecture: What You Are Actually Buying

The set is a three-layer bonded substrate system, laminated under ISO 9001:2015 certified textile protocols. Here is what each layer does.

Layer 1 — the 28 oz Vinyl Shell

A 28 oz/yd² expanded vinyl (PVC-P) calendered film loaded with dual-action UV inhibitors: benzotriazole plus HALS. That package holds color shift to ΔE under 3.0 across a 5-year-equivalent exposure, verified through SAE J2412 xenon-arc testing.

Layer 2 — the 2.2 lb/ft³ HR Foam Core

Cross-linked high-resiliency polyurethane at 38 lb ILD @ 25%. The OEM cushion runs 1.8 lb/ft³ at 32 lb ILD — the reason stock benches bottom out fast in high-cycle duty. Per ASTM D3574, this foam keeps compression set below 8% at 50% deflection.

Layer 3 — the 70-Denier Backing Scrim

A 70-denier polyester needle-punched backing, bonded under heat and pressure to the foam. It stops delamination during thermal cycling across a validated −20°F to 180°F range — relevant for carts stored outdoors year-round.

Thread — Where Cheap Cushions Fail First

Perimeter seams use Tex 135 UV-stabilized bonded polyester at 4 SPI lock-stitch. Lock-stitch construction eliminates thread-wick moisture ingress, and back-tacking at the hinge-line corners handles the cyclic shear of flipping the seat into cargo mode.

Spec Table: OEM vs. Koeep vs. 2026 Benchmark

Every number comes from the 2026 product and OEM data — built for procurement comparisons and cross-referencing.

Fitment Matrix: Does It Fit Your Cart?

If your cart runs the standard non-suspended rear flip-seat kit — the EZGO P/N 72319-G01 platform — the answer is yes. That covers EZGO TXT (1996–2026), ST, ST Sport, and Valor.

Electronics are a non-issue. Seat cushions are passive mechanical components, so 2026 CAN-bus 3.0 architecture changes nothing: TXT 48V, Valor 48V, and ST Sport II (2021–2026) are all valid fits.

• Direct OEM drop-in — no bracket modification, no drilling, no welding
• Reuses your factory EZGO rear seat pan brackets
• Cushion set only; hardware stays with the cart

Two Configurations This Set Does Not Fit

Not for the EZGO Liberty Elite — its suspended rear seat assembly uses a different frame. Not for the 2026 EZGO Liberty LSV integrated rear bucket configuration either. Check the rear seat pan profile on your cart before ordering; one look prevents most fitment mistakes.

Refreshing the whole cabin? The matching Black Golf Cart Front Cushion Seat Cover for EZGO TXT keeps both benches consistent in material and color.

Koeep also lists the original rear seat cushion set for the same EZGO TXT, ST, ST Sport, and Valor models, so you can compare versions before buying.

• Browse the full interior auto parts collection for dash, flooring, and other in-cab parts.
• Read the complete guide to this rear seat cushion set for installation context and fitment notes.

Four Failure Modes This Set Is Built to Fix

Fleet service data keeps pointing at the same four rear-cushion failures. Koeep codes them DTC-SC-01 through DTC-SC-04. Here is the cause of each, and the fix.

DTC-SC-01 — Surface Cracking Before 2 Years (2026 Valor)

Cause: insufficient UV stabilizer loading in the OEM 24 oz vinyl, compounded by the 2026 Valor's open-storage design that leaves the bench in sustained direct sun. Fix: the 28 oz Koeep shell with benzotriazole-HALS protection, validated to 500 hours under ASTM G154.

DTC-SC-02 — Foam Compression Set Over 15% After 12 Months

Cause: the OEM 1.8 lb/ft³ foam is too soft for high-cycle commercial duty — golf course and resort shuttle fleets. Fix: the 2.2 lb/ft³ HR foam holds set below 8% per ASTM D3574 and runs 4–5 years between fleet replacements.

DTC-SC-03 — Seam Separation at the Fold Hinge Line

Cause: OEM Tex 90 thread at 3 SPI single-stitch fails under cyclic shear every time the seat flips for cargo mode. Fix: Tex 135 bonded polyester at 4 SPI lock-stitch, with back-tacking at the hinge-line corners where load concentrates.

DTC-SC-04 — Color Fade Beyond ΔE 5 Within 18 Months (ST Sport)

Cause: black pigment photodegradation in OEM vinyl under desert and coastal UV. Fix: carbon-black-loaded vinyl with HALS stabilization holds ΔE under 3.0 across a 5-year-equivalent exposure, verified by SAE J2412 xenon-arc testing.

OEM Cross-Reference and Ordering Data

SKU: KPE-EZ-RSC-BLK-26. Compatible EZGO OEM reference part numbers: 72319-G01, 72332-G01, and 72444-G01. Match the rear seat pan profile on your cart to the non-suspended flip-seat platform before you order.

All data reflects the EZGO 2026 Parts & Accessories lifecycle bulletin (MY26-LC-004) for non-suspended rear-facing seat configurations. The set is forward-compatible with 2026–2030 non-suspended EZGO rear bench platforms.

• Service life: 5–8 years consumer, 4–5 years commercial fleet
• Warranty: 3-year limited against manufacturing defects in materials and workmanship
• Standards: SAE J2412, ASTM G154 Cycle 1, ASTM G21 (28-day), ASTM D3884 (Taber, H-18 wheel), ASTM D3574, EPA 2026 PFAS non-fluorinated upholstery guidelines, ISO 9001:2015

Fleet or wholesale buyer? Send cart counts and model years through the request-for-quote page for volume pricing. Quick fitment questions go to support@koeep.com or the team on WhatsApp.

FAQ: 2026 EZGO Rear Seat Cushion Set