OEM Spec Exact Replacement Rigorously Tested Perfect Fit Crankshaft Assy (6R316-2RH00)

The 6R316-2RH00 crankshaft assembly is a forged replacement component designed for 2.5L Smartstream G4FP hybrid Atkinson cycle engines. Produced in an IATF16949-accredited engine component facility, this part adheres to Hyundai-Kia original equipment dimensions and performance standards. It serves engine rebuilders and wholesale parts distributors, with order quantities starting at 500 units.

6R316-2RH00 Crankshaft Technical Specifications

6R316-2RH00 Crankshaft Manufacturing & Performance Characteristics

Forging Material & Structural Design

This crankshaft is formed via precision closed-die forging using 42CrMoA micro-alloyed steel. The forging process aligns grain flow along the crankshaft contour to support structural integrity under cyclic loads. It adopts a 4-throw configuration with integral counterweights, matching the original engine’s structural layout for direct installation.

Surface Treatment & Lubrication Design

All main and rod journals receive high-frequency induction hardening, achieving 55–62 HRC surface hardness with a 2–3mm effective case depth. This treatment addresses wear from metal-to-metal contact during cold starts and contaminated oil conditions. A multi-stage fillet rolling process introduces compressive residual stress at journal radii, to reduce crack initiation under repeated bending and torsional loads. Precision cross-drilled oil passages deliver pressurized lubrication to rod bearings, supporting consistent oil film formation during operation.

Machining Precision & Balance Performance

Final grinding operations control main journal runout below 0.02mm TIR and rod journal roundness within 0.005mm. These geometric tolerances support uniform bearing load distribution and stable oil film thickness. The component achieves a G40 dynamic balance grade at the factory, to minimize rotational vibration during engine operation.

Compatible Vehicles & Engine Applications for 6R316-2RH00

This crankshaft assembly fits Hyundai Santa Fe CN7 and Santa Fe Calligraphy Hybrid/HEV models produced between 2021 and 2023, paired with 2.5L Smartstream G4FP hybrid Atkinson cycle engines. It installs in the lower engine block, supported by 4 main journal bearings. This component serves as a replacement for original crankshafts with connecting rod bearing spin damage, main journal seizure from oil starvation, or fatigue cracking from extreme operating conditions. Installation follows standard engine disassembly procedures, with bearing selection based on journal measurement and main cap fasteners tightened to factory torque specifications.

FAQ About 6R316-2RH00 Crankshaft

Is this crankshaft manufactured to original equipment specifications?

This aftermarket replacement crankshaft is produced to match Hyundai-Kia OEM dimensional and performance specifications. Manufacturing takes place in an IATF16949-accredited facility, with production processes aligned to automotive engine component quality standards.

How can I confirm compatibility with my vehicle?

You may cross-reference the OE part number 6R316-2RH00 with your vehicle’s VIN through an authorized dealer, or use our online compatibility checker. For models not listed, contact our support team with VIN details for verification.

What options are available for commercial procurement?

Minimum order quantities range from 500 to 1000 units. Three packaging options are offered: genuine MOBIS standard packaging, neutral aftermarket packaging, and branded aftermarket packaging, to fit different inventory and distribution needs.

What components should be replaced alongside this crankshaft?

It is recommended to replace all main and connecting rod bearings when installing this crankshaft. Thoroughly cleaning all engine oil galleries to remove residual metal debris, and replacing engine oil, oil filter, and oil pump are also advised as preventive measures. A torque wrench is required to tighten fasteners to factory specifications.