3.5L 24v - 2GR-FE

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3.5L 24v - 2GR-FE

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ACL trimetal connecting rod bearings Toyota 2GR-FE 3.5 V6

New product

Set of 12 trimetal connecting rod half-bearings for Toyota 2GR-FE.

  • Brand and treatment: ACL Race
  • Compatibility: Camry, RAV4, Highlander, Previa, Sienna
  • Engine codes: 2GR-FE
  • Available sizes: standard to +0.25 mm, increased-clearance version (HX)

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  • The Toyota 2GR-FE V6

    The 2GR-FE is Toyota's 3.5 litre 24-valve V6, fitted to the Alphard, Aurion, Avalon, Camry, Highlander, Previa, RAV4, Sienna and Venza. ACL lists a single bearing set for this engine: 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.

    Trimetal connecting rod bearings

    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.

    Technical specifications

    Fitment dimensions common to all references
    ACL bearings
    Crankpin Ø 52.980 / 53.000 mm
    Housing bore Ø 56.000 / 56.020 mm
    Width 15 mm
    Tangless
    ReferenceBrand and treatmentSizeWall thickness (mm)
    6B8466H-STDACL Race - UntreatedStandard1.490
    6B8466HX-STDACL Race - UntreatedStd, increased clearance (HX)1.477
    6B8466H-.025ACL Race - Untreated+0.0251.503
    6B8466H-.25ACL Race - Untreated+0.251.615

    Running clearance

    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 / gradeWhen to choose itACL Race Series
    Standard (STD)Standard journal, not reground0.055 to 0.066 mm
    Increased clearance (HX)Wider clearance: high oil flow, high rpm0.081 to 0.092 mm
    +0.025 mmPolished journal0.055 to 0.066 mm
    +0.25 mmJournal reground to 0.25 mm0.055 to 0.066 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.

    Plastigauge

    Order the Plastigauge →

    Technical guide

    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.

    The brand

    ACL Bearing CompanyACL 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.

    Vehicle compatibility

    This connecting rod bearing set fits the 2GR-FE V6 of the following Toyota models:

    BrandModel (chassis)Engine codePowerYears
    TOYOTAALPHARD / VELLFIRE (_H2_) 3.5 / 3.5 4WD2GR-FE275–280 hp2008–2014
    TOYOTAALPHARD / VELLFIRE (_H3_) 3.5 / 3.5 AWD2GR-FE275–280 hp2015–
    TOYOTAAURION (_V4_) 3.5 / 3.5 TRD2GR-FE272–328 hp2006–2011
    TOYOTAAURION (_V5_) 3.52GR-FE272 hp2011–
    TOYOTAAURIS (_E15_) 3.5 4WD2GR-FE280 hp2006–2012
    TOYOTAAVALON Saloon (_X3_) 3.52GR-FE269–280 hp2005–2012
    TOYOTAAVALON Saloon (_X4_) 3.52GR-FE272–277 hp2012–2018
    TOYOTACAMRY Saloon (_V4_) 3.52GR-FE272–284 hp2006–2014
    TOYOTACAMRY Saloon (_V5_) 3.52GR-FE249–277 hp2011–2018
    TOYOTAHARRIER (_U3_) 3.5 / 3.5 4WD2GR-FE280 hp2005–2008
    TOYOTAHIGHLANDER / KLUGER (_U4_) 3.5 / 3.5 4WD / 3.5 Hybrid AWD2GR-FE273–284 hp2007–2014
    TOYOTAHIGHLANDER / KLUGER (_U5_) 3.5 / 3.5 AWD / 3.5 Hybrid AWD2GR-FE204–284 hp2013–2016
    TOYOTAMARK X ZIO I (_A1_) 3.52GR-FE280 hp2007–
    TOYOTAPREVIA III (_R2_, _R5_) 3.5 / 3.5 4WD2GR-FE275–280 hp2006–
    TOYOTARAV 4 III (_A3_) 3.5 / 3.5 4WD2GR-FE269–280 hp2005–2012
    TOYOTASIENNA (_L2_) 3.5 / 3.5 4WD2GR-FE269 hp2006–2010
    TOYOTASIENNA (_L3_) 3.5 / 3.5 4WD2GR-FE267–269 hp2010–
    TOYOTASIENNA Mini Cargo Van (_L2_) 3.52GR-FE269 hp2007–2010
    TOYOTAVENZA (_V1_) 3.5 / 3.5 4WD2GR-FE272 hp2008–2016