23040-2BCA0
23040-2BCA0
Hyundai, Kia
2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016
Engine System
Piston Ring
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Product Description
The 23040-2BCA0 piston ring set is designed for Hyundai and Kia Gamma II 1.6L Turbo G4FJ/T-GDI engines, which operate with peak cylinder pressures above 120 bar. Produced in an IATF16949-certified facility, this replacement set matches OEM dimensional and performance specifications for direct fitment in 4-cylinder assemblies. Each full engine set includes 12 rings (3 rings per cylinder) to support complete engine rebuilds and component replacement for engine parts distributors and repair workshops.
Parameter | Details |
OE Number | 23040-2BCA0 |
Official OEM Name | RING SET-PISTON / PISTON RING ASSEMBLY |
Interchange OEM Numbers | 23040-2BCA0, 230402BCA0 |
Applicable Engine | Hyundai/Kia Gamma II 1.6L Turbo G4FJ/T-GDI (2015-2024) |
Engine Specification | 1.6L Turbocharged GDI, 4-cylinder, 16-valve DOHC, 204 HP output |
Rings Per Cylinder | 3 pieces (Compression Ring #1 + Compression Ring #2 + Oil Control Ring) |
Total Per Package | 12 rings (complete set for 4 cylinders) |
Alternative Aftermarket Numbers | PRING-TURBO16, PS-2BCA0, RSET-GAMMA-TGDI |
Parameter | Details |
Ring #1 (Top Compression) | Barrel-face profile, radial wall thickness 1.5mm; high-carbon alloy steel substrate with ion-plated PVD chrome coating (micro-cracked surface for oil retention) |
Ring #2 (Second Compression) | Taper-face profile, radial wall thickness 1.5mm; nitriding-grade steel with phosphate conversion coating for anti-scuff protection |
Oil Control Assembly | Two-piece design (rail + expander); rail thickness 0.6mm; thin-gauge stainless steel rails with chrome-plated running face; corrugated spring steel waveform expander with corrosion-resistant plating |
Standard Cold End Gap | Ring #1: 0.25-0.40mm; Ring #2: 0.30-0.45mm; Oil Rail: 0.20-0.55mm |
Net Weight (Full Set) | Approx 0.085 kg (0.19 lbs) |
Package Size | 100 × 80 × 25 mm |
Production Standard | Manufactured to Hyundai-Kia OEM component specifications, IATF16949 certified |
The first compression ring uses physical vapor deposition (PVD) chrome plating with an engineered micro-crack surface pattern. This structure retains lubricating oil film under high heat and pressure conditions in turbocharged direct-injection combustion cycles, reducing scuffing, microwelding and accelerated wear that occur with standard ring designs in high-output engines.
The second compression ring is constructed from gas-nitrided steel, which creates a hard, wear-resistant surface layer while retaining sufficient flexibility to conform to minor cylinder bore variations. Its tapered face profile scrapes excess oil downward during the intake stroke while maintaining consistent compression sealing across the bore.
The oil control assembly uses separate thin rails paired with a waveform spring expander, which applies uniform radial pressure against the cylinder wall. Compared to one-piece cast iron oil rings, this design delivers more consistent oil scraping performance, reduces oil consumption, and limits oil ash deposits that can contaminate catalytic converters.
Replacing worn piston rings restores cylinder compression to factory specification levels, addressing rough idle, power loss and reduced fuel efficiency caused by blow-by leakage. It also resolves excessive oil consumption that leads to blue exhaust smoke and spark plug fouling in GDI turbo engines.
This piston ring set fits all vehicle models equipped with the Gamma II 1.6L Turbo G4FJ engine:
Hyundai: Elantra (Avante) 2016-2024, Kona 2018-2021, Tucson 2016-2018, Veloster 2019-2021, Sonata 2015-2019
Kia: Forte GT 2019-2022, Seltos 2021-2022, Soul Turbo 2020-2021, Optima 2016-2020
For commercial procurement and bulk orders, the minimum order quantity starts from 500 sets, with flexible delivery scheduling available to match inventory planning. Two packaging options are offered: neutral aftermarket packaging (standard for bulk shipments) and custom branded packaging for distributors. All shipments undergo dimensional inspection before dispatch to ensure specification consistency.
This is an aftermarket replacement set manufactured to meet or exceed original equipment dimensional and performance specifications. It provides equivalent fit, form and function as the factory part, with compliance to IATF16949 production standards.
The most reliable verification method is cross-referencing the OEM part number 23040-2BCA0 with your vehicle’s VIN through an authorized dealer. You may also confirm fit by matching your engine code to the G4FJ 1.6L Turbo GDI platform.
Standard automotive hand tools are sufficient for installation. A torque wrench is recommended to tighten all fasteners to factory torque specifications. Refer to the official service manual for your vehicle model for step-by-step assembly guidance.
The cold end gap specifications are 0.25-0.40mm for the top compression ring, 0.30-0.45mm for the second compression ring, and 0.20-0.55mm for the oil control rails. During assembly, stagger ring end gaps 120° apart and ensure ring markings face upward.
It is recommended to replace associated wear items such as gaskets, seals and engine fluids during the same service. This reduces repeated labor costs and supports balanced engine operation after rebuild.
The minimum order quantity for commercial orders ranges from 500 to 1000 sets. Custom packaging and delivery scheduling can be arranged based on order volume.
