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3.8L 24v - G6DA
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3.8L 24v - G6DA
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Set of 12 trimetal connecting rod half-bearings for Hyundai and Kia G6DA, G6DB, G6DC, G6DH.
The G6DB, G6DH, G6DC and G6DA are Hyundai's 3.3, 3.5 and 3.8 litre 24-valve V6 engines, the G6DH with direct injection; they power the Hyundai Genesis, Grandeur, Santa Fe, Sonata, Equus, ix55 and Palisade, the Kia Sorento, Carnival, Opirus, Cadenza, Borrego, Quoris and Sedona, as well as the Genesis G80. ACL lists a single bearing set for these engines: same crankpin diameter, a single set covers the family.
From the factory, this engine is fitted with standard production connecting rod bearings, sized for the loads of the original engine: as soon as power, engine speed or boost pressure increase, they reach their limits.
A trimetal bearing stacks three layers: a steel back, a copper-lead intermediate layer with high load capacity and an anti-friction running surface that protects the journal. The complete set contains 12 half shells, six pairs for a six-cylinder engine.
The original bearing relies on an aluminium alloy over a steel back, intended for low to medium loads, whereas trimetal is designed for high, sustained loads: an aluminium bi-metal takes around 8,000 psi, a performance trimetal up to 12,000 psi, 50% more. Hence better resistance and better durability on turbocharged, supercharged and high-revving engines.
| ACL bearings Crankpin Ø 54.954 / 54.972 mm Housing bore Ø 58.000 / 58.018 mm Width 18 mm Tangless |
| Reference | Brand and treatment | Size | Wall thickness (mm) |
|---|---|---|---|
| 6B8598H-STD | ACL Race - Untreated | Standard | 1.502 |
| 6B8598HX-STD | ACL Race - Untreated | Std, increased clearance (HX) | 1.489 |
| 6B8598H-.025 | ACL Race - Untreated | +0.025 | 1.515 |
| 6B8598H-.25 | ACL Race - Untreated | +0.25 | 1.627 |
The running clearance is the gap between the bearing and the journal where the oil film flows.
In operation, the crankshaft journal does not rub against the bearing: it rides on this oil film, which carries the load. Clearance sets the thickness of this film: too tight, oil flows poorly, temperature rises and the risk of seizure increases; too loose, oil escapes, the film loses load-carrying capacity and oil pressure drops. The right clearance is the balance between adequate lubrication and a well-maintained oil film.
| Size / grade | When to choose it | ACL Race Series |
|---|---|---|
| Standard (STD) | Standard journal, not reground | 0.057 to 0.068 mm |
| Increased clearance (HX) | Wider clearance: high oil flow, high rpm | 0.082 to 0.093 mm |
| +0.025 mm | Polished journal | 0.057 to 0.068 mm |
| +0.25 mm | Journal reground to 0.25 mm | 0.057 to 0.068 mm |
Checking on assembly: lay a calibrated strip (Plastigauge) on the journal, torque the rod cap to spec, then compare the crushed strip against the gauge to read the clearance.
The ACL rod bearings shown here are trimetal bearings, designed for engine building and racing. Compared with an original bearing, they handle far higher loads: they cope with increased power, high rpm or the addition of a turbo or supercharger, where a standard bearing quickly reaches its limit.
 | ACL Bearing Company, an Australian manufacturer of high-performance engine bearings since 1949, offers with its Race Series precise trimetal bearings, available in many sizes and proven on built engines worldwide. |
This connecting rod bearing set fits the G6DA, G6DB, G6DC and G6DH V6 engines of the following Hyundai, Kia and Genesis models:
| Brand | Model (chassis) | Engine code | Power | Years |
|---|---|---|---|---|
| GENESIS | G80 (DH) 3.3 GDI / 3.3 GDI AWD | G6DH | 281 hp | 2016– |
| HYUNDAI | ASLAN 3.3 GDi | G6DH | 290–294 hp | 2014– |
| HYUNDAI | ENTOURAGE Mini Passenger Van 3.8 | G6DA | 254 hp | 2006–2008 |
| HYUNDAI | EQUUS / CENTENNIAL (JS) 3.3 | G6DB | 248 hp | 2004–2009 |
| HYUNDAI | EQUUS / CENTENNIAL (VI) 3.8 | G6DA | 290 hp | 2009–2016 |
| HYUNDAI | GENESIS (BH) 3.8 V6 / 3.3 24V / 3.3 | G6DA, G6DB, G6DH | 233–300 hp | 2008–2014 |
| HYUNDAI | GENESIS (DH) 3.3 GDI / 3.3 GDI 4WD | G6DH | 249–282 hp | 2014–2017 |
| HYUNDAI | GENESIS Coupe 3.8 V6 / 3.8 CVVT / 3.8 | G6DA | 303–310 hp | 2008– |
| HYUNDAI | GRAND SANTA FÉ 3.3 GDi AWD / 3.3 GDi | G6DH | 286–296 hp | 2013–2019 |
| HYUNDAI | GRANDEUR (HG) 3.3 / 3.3 GDI | G6DH | 286–296 hp | 2011– |
| HYUNDAI | GRANDEUR (IG) 3.3 GDI / 3.5 | G6DC, G6DH | 290 hp | 2016– |
| HYUNDAI | GRANDEUR (TG) 3.3 / 3.8 / CNG / LPG | G6DA, G6DB | 233–287 hp | 2005–2012 |
| HYUNDAI | ix55 3.8 V6 / 3.8 V6 4WD | G6DA | 260–271 hp | 2007–2012 |
| HYUNDAI | PALISADE (LX2) 3.5 MPI / 3.5 MPI HTRAC / 3.5 / 3.5 HTRAC | G6DC | 272–277 hp | 2018– |
| HYUNDAI | SANTA FÉ II (CM) 3.3 / 3.5 4x4 / 3.3 Dynamic 4x4 / 3.3 AWD / 3.5 | G6DB, G6DC | 235–286 hp | 2006–2012 |
| HYUNDAI | SANTA FÉ III (DM, DMA) 3.3 GDI 4WD / 3.3 GDi / 3.3 XL 4WD | G6DH | 290–296 hp | 2013–2018 |
| HYUNDAI | SANTA FE IV (TM, TMA) 3.5 MPI AWD / 3.5 MPI FWD | G6DC | 249–280 hp | 2018– |
| HYUNDAI | SONATA V (NF) 3.3 | G6DB | 233–253 hp | 2005–2010 |
| KIA | BORREGO (HM) 3.8 / 3.8 4WD | G6DA | 275–280 hp | 2008– |
| KIA | CADENZA I (VG) 3.3 GDI / 3.5 CVVT | G6DC, G6DH | 290–296 hp | 2010–2015 |
| KIA | CADENZA II (YG) 3.5 CVVT | G6DC | 290 hp | 2019– |
| KIA | CARNIVAL / GRAND CARNIVAL III (VQ) 3.5 CVVT / 3.8 / 3.5 LPG | G6DA, G6DC | 242–276 hp | 2005–2015 |
| KIA | OPIRUS (GH) 3.8 V6 / 3.3 / LPG / CNG | G6DA, G6DB | 235–284 hp | 2006–2012 |
| KIA | QUORIS I (KH) 3.3 | G6DH | 300 hp | 2012– |
| KIA | SEDONA III (YP) 3.3 GDI / 3.3 LPG | G6DH | 276–280 hp | 2014– |
| KIA | SORENTO I (JC) 3.3 V6 4WD / 3.8 4WD / 3.3 / 3.3 4WD / 3.8 / 3.8 V6 4WD / 3.5 4WD | G6DA, G6DB, G6DC | 245–281 hp | 2006–2011 |
| KIA | SORENTO II (XM) 3.5 / 3.5 4WD / 3.3 GDI 4WD / 3.3 GDI | G6DC, G6DH | 276–294 hp | 2009–2015 |
| KIA | SORENTO III (UM) 3.3 4WD / 3.5 D-CVVT / 3.5 D-CVVT 4WD / 3.3 | G6DC, G6DH | 249–290 hp | 2016–2020 |
