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Nissens 91378 Engine Oil CoolerOE Quality 60-Day Returns
Part #: 91378

Nissens 91378 Engine Oil Cooler

98 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Lexus and Toyota, Highlander, RX350, RX350L, RX450h, and Sienna
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Nissens 91378 Engine Oil Cooler

The Nissens 91378 engine oil cooler is an aluminum thermal-management component built for direct-fit service on select Lexus and Toyota applications. It is specified for vehicles such as the Lexus RX350, RX350L, RX450h, Toyota Highlander, and Toyota Sienna, with 2022 applications noted as without housing.

  • Aluminum construction for efficient heat transfer
  • Core height: 3.1900
  • Core width: 1.6100
  • Core length: 4.25
  • Engine oil cooler for thermal control in the lubrication system
  • Compatible with select Lexus RX350 and Toyota Highlander applications

OE-Style Thermal Control

Nissens part number 91378 is engineered as an engine oil cooler for vehicles that rely on stable oil temperature to protect engine performance and lubrication quality. The aluminum core supports heat exchange in a compact package, making it a practical replacement for select Lexus RX350, Lexus RX350L, Lexus RX450h, Toyota Highlander, and Toyota Sienna models. This part cross-references OE numbers 157100P010 and 1571031060 for the same application.

Common Issues This Part Can Address

  • Oil temperature running higher than normal
  • Oil cooler leakage from age or corrosion
  • Reduced cooling efficiency in the lubrication circuit
  • Service replacement for a damaged or worn cooler assembly
  • Fitment needs for Lexus RX350 and Toyota Highlander oil cooler service

Installation Notes and Tips

Verify the vehicle’s model year and configuration before installation. 2022 Lexus RX350, RX350L, RX450h, and 2022 Toyota Highlander applications are listed without housing. Confirm the existing cooler layout, mounting points, and OE reference numbers 157100P010 or 1571031060 before ordering. Professional installation is recommended to ensure proper sealing and system integrity.

Quality Assurance

Nissens develops thermal and engine-efficiency components for the aftermarket with a focus on consistent manufacturing quality. Part number 91378 is produced as a precision replacement oil cooler for the listed Lexus and Toyota applications.

BrandNissens
Part Number91378
Core Height3.1900
Core Width1.6100
Core Length4.25
MaterialAluminum

This part fits 98 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2022LexusRX350Base3.5LV6GASN/AWITHOUT HOUSING
2022LexusRX350LBase3.5LV6GASN/AWITHOUT HOUSING
2022LexusRX450hBase3.5LV6FULL HYBRID EV-GAS (FHEV)N/AWITHOUT HOUSING
2022ToyotaHighlanderLimited3.5LV6GASN/AWITHOUT HOUSING
2021LexusRX350F Sport3.5LV6GASN/A
2021LexusRX350Base3.5LV6GASN/A
2021LexusRX350LBase3.5LV6GASN/A
2021LexusRX450hBase3.5LV6ELECTRIC/GASN/A
2021LexusRX450hF Sport3.5LV6ELECTRIC/GASN/A
2021ToyotaHighlanderXLE3.5LV6GASN/A
2021ToyotaHighlanderLimited3.5LV6GASN/A
2021ToyotaHighlanderL3.5LV6GASN/A
2021ToyotaHighlanderLE3.5LV6GASN/A
2021ToyotaHighlanderPlatinum3.5LV6GASN/A
2021ToyotaHighlanderXSE3.5LV6GASN/A
2020LexusRX350F Sport3.5LV6GASN/A
2020LexusRX350Base3.5LV6GASN/A
2020LexusRX350LBase3.5LV6GASN/A
2020LexusRX450hF Sport3.5LV6ELECTRIC/GASN/A
2020LexusRX450hBase3.5LV6ELECTRIC/GASN/A
2020ToyotaHighlanderL3.5LV6GASN/A
2020ToyotaHighlanderLimited3.5LV6GASN/A
2020ToyotaHighlanderPlatinum3.5LV6GASN/A
2020ToyotaHighlanderLE3.5LV6GASN/A
2020ToyotaHighlanderXLE3.5LV6GASN/A
2020ToyotaSiennaXLE3.5LV6GASN/A
2020ToyotaSiennaL3.5LV6GASN/A
2020ToyotaSiennaLE3.5LV6GASN/A
2020ToyotaSiennaXLE Premium3.5LV6GASN/A
2020ToyotaSiennaSE Premium3.5LV6GASN/A
2020ToyotaSiennaLimited Premium3.5LV6GASN/A
2020ToyotaSiennaSE3.5LV6GASN/A
2020ToyotaSiennaLimited3.5LV6GASN/A
2019LexusRX350F Sport3.5LV6GASN/A
2019LexusRX350Base3.5LV6GASN/A
2019LexusRX350LBase3.5LV6GASN/A
2019LexusRX450hF Sport3.5LV6ELECTRIC/GASN/A
2019LexusRX450hBase3.5LV6ELECTRIC/GASN/A
2019ToyotaHighlanderHybrid LE3.5LV6ELECTRIC/GASN/A
2019ToyotaHighlanderHybrid Limited Platinum3.5LV6ELECTRIC/GASN/A
2019ToyotaHighlanderHybrid Limited3.5LV6ELECTRIC/GASN/A
2019ToyotaHighlanderXLE3.5LV6GASN/A
2019ToyotaHighlanderLE3.5LV6GASN/A
2019ToyotaHighlanderSE3.5LV6GASN/A
2019ToyotaHighlanderLimited3.5LV6GASN/A
2019ToyotaHighlanderLE Plus3.5LV6GASN/A
2019ToyotaHighlanderLimited Platinum3.5LV6GASN/A
2019ToyotaHighlanderHybrid XLE3.5LV6ELECTRIC/GASN/A
2019ToyotaSiennaSE3.5LV6GASN/A
2019ToyotaSiennaL3.5LV6GASN/A
2019ToyotaSiennaLimited3.5LV6GASN/A
2019ToyotaSiennaXLE Premium3.5LV6GASN/A
2019ToyotaSiennaSE Premium3.5LV6GASN/A
2019ToyotaSiennaLimited Premium3.5LV6GASN/A
2019ToyotaSiennaXLE3.5LV6GASN/A
2019ToyotaSiennaLE3.5LV6GASN/A
2018LexusRX350F Sport3.5LV6GASN/A
2018LexusRX350Base3.5LV6GASN/A
2018LexusRX350LBase3.5LV6GASN/A
2018LexusRX450hF Sport3.5LV6ELECTRIC/GASN/A
2018LexusRX450hBase3.5LV6ELECTRIC/GASN/A
2018ToyotaHighlanderLE Plus3.5LV6GASN/A
2018ToyotaHighlanderHybrid LE3.5LV6ELECTRIC/GASN/A
2018ToyotaHighlanderHybrid XLE3.5LV6ELECTRIC/GASN/A
2018ToyotaHighlanderHybrid Limited3.5LV6ELECTRIC/GASN/A
2018ToyotaHighlanderXLE3.5LV6GASN/A
2018ToyotaHighlanderLE3.5LV6GASN/A
2018ToyotaHighlanderSE3.5LV6GASN/A
2018ToyotaHighlanderLimited3.5LV6GASN/A
2018ToyotaSiennaLimited Premium3.5LV6GASN/A
2018ToyotaSiennaL3.5LV6GASN/A
2018ToyotaSiennaLE3.5LV6GASN/A
2018ToyotaSiennaLimited3.5LV6GASN/A
2018ToyotaSiennaSE Premium3.5LV6GASN/A
2018ToyotaSiennaXLE Premium3.5LV6GASN/A
2018ToyotaSiennaSE3.5LV6GASN/A
2018ToyotaSiennaXLE3.5LV6GASN/A
2017LexusRX350F Sport3.5LV6GASN/A
2017LexusRX350Base3.5LV6GASN/A
2017LexusRX450hF Sport3.5LV6ELECTRIC/GASN/A
2017LexusRX450hBase3.5LV6ELECTRIC/GASN/A
2017ToyotaHighlanderLE Plus3.5LV6GASN/A
2017ToyotaHighlanderHybrid LE3.5LV6ELECTRIC/GASN/A
2017ToyotaHighlanderHybrid Limited3.5LV6ELECTRIC/GASN/A
2017ToyotaHighlanderXLE3.5LV6GASN/A
2017ToyotaHighlanderLE3.5LV6GASN/A
2017ToyotaHighlanderSE3.5LV6GASN/A
2017ToyotaHighlanderLimited3.5LV6GASN/A
2017ToyotaHighlanderHybrid XLE3.5LV6ELECTRIC/GASN/A
2017ToyotaSiennaXLE3.5LV6GASN/A
2017ToyotaSiennaLE3.5LV6GASN/A
2017ToyotaSiennaSE3.5LV6GASN/A
2017ToyotaSiennaLimited3.5LV6GASN/A
2017ToyotaSiennaL3.5LV6GASN/A
2016LexusRX350F Sport3.5LV6GASN/A
2016LexusRX350Base3.5LV6GASN/A
2016LexusRX450hF Sport3.5LV6ELECTRIC/GASN/A
2016LexusRX450hBase3.5LV6ELECTRIC/GASN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

157100P0101571031060

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

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