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Vertex Forged Replica Piston Kit - Beta RR 4T 350

Part number: 24386B

$302.95

Vertex Forged Replica Piston Kit - Beta RR 4T 350 — 24386BVertex Forged Replica Piston Kit - Beta RR 4T 350 — 24386BVertex Forged Replica Piston Kit - Beta RR 4T 350 — 24386BVertex Forged Replica Piston Kit - Beta RR 4T 350 — 24386B

Description

Forged Replica Piston Kit. Includes (Piston, Ring Set, Wrist Pin & Circlips). Specifications Compression Ratio: 13.0:1 Cylinder Diameter: 88mm Displacement: 350cc Piston O.D.: 87.97mm Vehicle Fitment Beta RR 4T 350 (2016-2025) Beta RR 4T 350 Race (2022-2024) Beta RR-S 4T 350 (2017-2024) Vertex Pistons are precision-engineered for maximum performance and durability. Each kit is manufactured to OEM specifications with premium materials for a perfect fit. Backed by Vertex's quality guarantee.

Specifications

compression ratio13.0:1
cylinder diameter88mm
displacement350cc
part typeForged Replica Piston Kit
piston od87.97
vehicle typeDirt Bike

Listed vehicle applications

YearMakeModelNotes
2025BetaRR 4T 350Catalog application: 2025 Beta RR 4T 350. Piston OD 87.97 mm; Cylinder 88mm. Forged Replica Piston Kit. Includes (Piston, Ring Set, Wrist Pin & Circlips). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23.
2024BetaRR 4T 350Catalog application: 2024 Beta RR 4T 350. Piston OD 87.97 mm; Cylinder 88mm. Forged Replica Piston Kit. Includes (Piston, Ring Set, Wrist Pin & Circlips). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23.
2023BetaRR 4T 350Catalog application: 2023 Beta RR 4T 350. Piston OD 87.97 mm; Cylinder 88mm. Forged Replica Piston Kit. Includes (Piston, Ring Set, Wrist Pin & Circlips). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23.
2022BetaRR 4T 350Catalog application: 2022 Beta RR 4T 350. Piston OD 87.97 mm; Cylinder 88mm. Forged Replica Piston Kit. Includes (Piston, Ring Set, Wrist Pin & Circlips). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23.
2021BetaRR 4T 350Catalog application: 2021 Beta RR 4T 350. Piston OD 87.97 mm; Cylinder 88mm. Forged Replica Piston Kit. Includes (Piston, Ring Set, Wrist Pin & Circlips). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23.
2020BetaRR 4T 350Catalog application: 2020 Beta RR 4T 350. Piston OD 87.97 mm; Cylinder 88mm. Forged Replica Piston Kit. Includes (Piston, Ring Set, Wrist Pin & Circlips). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23.
2019BetaRR 4T 350Catalog application: 2019 Beta RR 4T 350. Piston OD 87.97 mm; Cylinder 88mm. Forged Replica Piston Kit. Includes (Piston, Ring Set, Wrist Pin & Circlips). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23.
2018BetaRR 4T 350Catalog application: 2018 Beta RR 4T 350. Piston OD 87.97 mm; Cylinder 88mm. Forged Replica Piston Kit. Includes (Piston, Ring Set, Wrist Pin & Circlips). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23.
2017BetaRR 4T 350Catalog application: 2017 Beta RR 4T 350. Piston OD 87.97 mm; Cylinder 88mm. Forged Replica Piston Kit. Includes (Piston, Ring Set, Wrist Pin & Circlips). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23.
2016BetaRR 4T 350Catalog application: 2016 Beta RR 4T 350. Piston OD 87.97 mm; Cylinder 88mm. Forged Replica Piston Kit. Includes (Piston, Ring Set, Wrist Pin & Circlips). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23.
2024BetaRR 4T 350 RaceCatalog application: 2024 Beta RR 4T 350 Race. Piston OD 87.97 mm; Cylinder 88mm. Forged Replica Piston Kit. Includes (Piston, Ring Set, Wrist Pin & Circlips). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23.
2023BetaRR 4T 350 RaceCatalog application: 2023 Beta RR 4T 350 Race. Piston OD 87.97 mm; Cylinder 88mm. Forged Replica Piston Kit. Includes (Piston, Ring Set, Wrist Pin & Circlips). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23.
2022BetaRR 4T 350 RaceCatalog application: 2022 Beta RR 4T 350 Race. Piston OD 87.97 mm; Cylinder 88mm. Forged Replica Piston Kit. Includes (Piston, Ring Set, Wrist Pin & Circlips). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23.
2024BetaRR-S 4T 350Catalog application: 2024 Beta RR-S 4T 350. Piston OD 87.97 mm; Cylinder 88mm. Forged Replica Piston Kit. Includes (Piston, Ring Set, Wrist Pin & Circlips). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23.
2023BetaRR-S 4T 350Catalog application: 2023 Beta RR-S 4T 350. Piston OD 87.97 mm; Cylinder 88mm. Forged Replica Piston Kit. Includes (Piston, Ring Set, Wrist Pin & Circlips). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23.
2022BetaRR-S 4T 350Catalog application: 2022 Beta RR-S 4T 350. Piston OD 87.97 mm; Cylinder 88mm. Forged Replica Piston Kit. Includes (Piston, Ring Set, Wrist Pin & Circlips). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23.
2021BetaRR-S 4T 350Catalog application: 2021 Beta RR-S 4T 350. Piston OD 87.97 mm; Cylinder 88mm. Forged Replica Piston Kit. Includes (Piston, Ring Set, Wrist Pin & Circlips). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23.
2020BetaRR-S 4T 350Catalog application: 2020 Beta RR-S 4T 350. Piston OD 87.97 mm; Cylinder 88mm. Forged Replica Piston Kit. Includes (Piston, Ring Set, Wrist Pin & Circlips). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23.
2019BetaRR-S 4T 350Catalog application: 2019 Beta RR-S 4T 350. Piston OD 87.97 mm; Cylinder 88mm. Forged Replica Piston Kit. Includes (Piston, Ring Set, Wrist Pin & Circlips). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23.
2018BetaRR-S 4T 350Catalog application: 2018 Beta RR-S 4T 350. Piston OD 87.97 mm; Cylinder 88mm. Forged Replica Piston Kit. Includes (Piston, Ring Set, Wrist Pin & Circlips). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23.
2017BetaRR-S 4T 350Catalog application: 2017 Beta RR-S 4T 350. Piston OD 87.97 mm; Cylinder 88mm. Forged Replica Piston Kit. Includes (Piston, Ring Set, Wrist Pin & Circlips). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23.

Check the exact vehicle application and specifications before ordering. Ask HPE if a detail is missing.