Skip to product information
SBT Cylinder O-Ring 290850540 for Sea-Doo SP, GT, XP, GTS, GTX, SPI, SPX 1989-1998 and 325 Models 2024-2026
$4.74 USD
This is an SBT replacement cylinder O-ring for Sea-Doo jet skis, matching OEM 290850540, 293300026 and 420850540. It fits the early SP, GT, XP, GTS, GTX, SPI and SPX skis, plus the GTX RFI and the 2024-2026 325 models. Replace it any time the cylinder or head is apart so the seal between the joints is fresh when you put it back together.
| Part number | 42-101-07 |
| Replaces OEM # | 290850540, 293300026, 420850540 |
| Brand | SBT |
| Condition | New |
Fits
- Sea-Doo SP (1989-1996)
- Sea-Doo GT (1990-1991)
- Sea-Doo XP (1991-1992)
- Sea-Doo GTS (1992-1996)
- Sea-Doo GTX (1992-1993)
- Sea-Doo SPI (1993-1996)
- Sea-Doo SPX (1993)
- Sea-Doo GTI (1996)
- Sea-Doo GTX RFI (1998)
- Sea-Doo RXP-X 325 (2024-2026)
- Sea-Doo RXT-X 325 (2024-2026)
- Sea-Doo GTX LTD 325 (2025-2026)
Replaces OEM part numbers
290850540 · 293300026 · 420850540
Not sure it fits your ski? Call or text 954-914-6465 with your hull ID (HIN) and we'll confirm before you order.