HomeExhaust > Catalytic ConverterEastern Convertors 40598 Catalytic Converter with Integrated Exhaust Manifold - Front Left or Left
Part #: 40598

Eastern Convertors 40598 Catalytic Converter with Integrated Exhaust Manifold - Front Left or Left

DIRECT FIT, Left and Front Left
⚙️ 16 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$575.50Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦DIRECT FIT, Left and Front Left
🚗Fitment: Toyota, 4Runner, FJ Cruiser, Tacoma, and Tundra
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Eastern Convertors DIRECT FIT Catalytic Converter 40598

The Eastern Convertors DIRECT FIT Catalytic Converter with Integrated Exhaust Manifold (part number 40598) is designed specifically for Toyota 4Runner, FJ Cruiser, Tacoma, and Tundra models. This federal/EPA direct-fit manifold ensures compliance with emissions standards while providing a reliable replacement solution.

  • Catalyst Type: Eco iii for efficient emissions control
  • Inlet Type: 6 bolt welded connection
  • Outlet Type: 2 bolt welded connection with one outlet gasket included
  • One O2 sensor port for accurate exhaust monitoring
  • Overall length of 24 inches for precise fitment
  • Federal/EPA direct-fit manifold design

About the DIRECT FIT Product Line

The DIRECT FIT product line from Eastern Convertors focuses on providing catalytic converters with integrated exhaust manifolds that meet federal and EPA standards. These parts are engineered to match original equipment specifications, ensuring a straightforward installation process and proper emissions performance. The 40598 model is part of this line, offering a direct replacement for compatible Toyota vehicles without the need for additional modifications.

Detailed Product Description

This catalytic converter with integrated exhaust manifold features the Eco iii catalyst type, which is designed to reduce harmful emissions effectively. The inlet side uses a 6 bolt welded flange, while the outlet side has a 2 bolt welded flange with one outlet gasket included to help ensure a secure seal. The unit includes one O2 sensor port to maintain proper engine management and emissions control. Measuring 24 inches in overall length, this part is engineered to fit Toyota 4Runner, FJ Cruiser, Tacoma, and Tundra models requiring a federal/EPA direct-fit manifold replacement.

Common Applications and Issues Addressed

  • Replacement of a damaged or clogged catalytic converter on Toyota 4Runner, FJ Cruiser, Tacoma, or Tundra
  • Restoring proper emissions control to pass federal or state inspections
  • Resolving check engine light issues related to catalytic converter or O2 sensor faults
  • Addressing exhaust leaks caused by manifold or gasket failure
  • Improving exhaust flow and engine performance by replacing worn components

Installation Notes and Tips

This part is designed as a direct-fit replacement, matching OEM specifications for a straightforward installation. The 6 bolt welded inlet and 2 bolt welded outlet flanges align with factory mounting points. Note that no inlet gasket or hardware is included, but one outlet gasket is provided. Proper torque specifications should be followed to ensure a secure and leak-free installation. The included O2 sensor port allows for reusing the existing sensor or installing a new one as needed.

Quality Assurance and Warranty

Eastern Convertors manufactures this catalytic converter with integrated exhaust manifold to meet federal and EPA emissions standards. The Eco iii catalyst ensures compliance with environmental regulations. While specific warranty details are not provided here, Eastern Convertors products typically adhere to industry quality standards for durability and performance.

BrandEastern Convertors
Part Number40598
PositionDIRECT FIT, Left and Front Left
Catalyst TypeEco iii
Inlet Gasket QtyNone
Inlet HardwareNone
Inlet Type A6 bolt welded
O2 Sensor Ports1
Outlet Gasket Qty1
Outlet HardwareNone
Outlet Type A2 bolt welded
Overall Length (IN)24
TypeFederal / epa direct-fit manifold

This part fits 16 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2009Toyota4Runner4.0LV6LeftLegal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions); DIRECT FIT
2009ToyotaFJ Cruiser4.0LV6LeftLegal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions); DIRECT FIT
2008Toyota4Runner4.0LV6LeftLegal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions); DIRECT FIT
2008ToyotaFJ Cruiser4.0LV6LeftLegal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions); DIRECT FIT
2008ToyotaTacoma4.0LV6LeftLegal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions); DIRECT FIT
2007Toyota4Runner4.0LV6LeftLegal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions); DIRECT FIT
2007ToyotaFJ Cruiser4.0LV6LeftLegal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions); DIRECT FIT
2007ToyotaTacoma4.0LV6LeftLegal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions); DIRECT FIT
2006Toyota4Runner4.0LV6LeftLegal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions); DIRECT FIT
2006ToyotaTacoma4.0LV6LeftLegal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions); DIRECT FIT
2006ToyotaTundra4.0LV6Front LeftRadiator Side; Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions); DIRECT FIT
2005Toyota4Runner4.0LV6LeftLegal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions); DIRECT FIT
2005ToyotaTacoma4.0LV6LeftLegal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions); DIRECT FIT
2005ToyotaTundra4.0LV6Front LeftRadiator Side; Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions); DIRECT FIT
2004Toyota4Runner4.0LV6LeftLegal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions); DIRECT FIT
2003Toyota4Runner4.0LV6LeftLegal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions); DIRECT FIT

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