How to remove and replace fuel injectors and Fuel Rail on Lexus RX330?

To remove and replace fuel injectors in a vehicle, start by relieving fuel pressure and disconnecting the negative battery terminal. Remove the engine cover and air intake duct if necessary. For four-cylinder models, disconnect electrical connectors, and remove the fuel supply line and fuel rail mounting bolts. Lift the fuel rail and injectors as a single assembly, replacing O-rings if necessary. For V6 models, remove the strut brace and intake manifold. Disconnect electrical connectors, and remove the Vacuum Switching Valve mounting bracket. If removing the entire fuel rail assembly, disconnect the fuel supply line and crossover tube. For 2GR-FKS V6 models port injection replacement, remove the upper intake manifold, and disconnect the fuel lines and electrical connectors. For direct injection, remove the upper intake manifold and high-pressure fuel pump. Install new injectors and O-rings, then reassemble components in reverse order. Start the engine and check for leaks.

Genuine Lexus RX330 Fuel Rail

Engine Fuel Rail

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5 Fuel Rails found

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Lexus RX330 Pipe Sub-Assy, Fuel Delivery
Part Number: 23814-20020
$86.86 MSRP: $115.59
You Save: $28.73 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Replaced by: 23814-20021
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2004-2005 Lexus RX330 | STD | 6 Cyl 3.3L | 3MZFE; MCU33L-AWAGKA, MCU33L-CWAGKA, MCU38L-AWAGKA, MCU38L-CWAGKA
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Lexus RX330 Pipe, Fuel Delivery, NO.2
Part Number: 23815-20020
$86.86 MSRP: $115.59
You Save: $28.73 (25%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 23815-20021
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2004-2005 Lexus RX330 | STD | 6 Cyl 3.3L | 3MZFE; MCU33L-AWAGKA, MCU33L-CWAGKA, MCU38L-AWAGKA, MCU38L-CWAGKA
View related parts
Lexus RX330 Pipe Sub-Assy, Fuel Delivery
Part Number: 23807-31040
$158.17 MSRP: $213.90
You Save: $55.73 (27%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Manufacturer Note: (J)
- Replaced by: 23807-0P040
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2006 Lexus RX330 | STD | 6 Cyl 3.5L | 2GRFE; GSU30L-AWAGKA, GSU30L-CWAGKA, GSU35L-AWAGKA, GSU35L-CWAGKA
View related parts
Lexus RX330 Pipe Sub-Assy, Fuel Delivery
Part Number: 23814-20021
$85.47 MSRP: $115.59
You Save: $30.12 (27%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Fuel Rail
- Replaces: 23814-20020
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2004-2006 Lexus RX330 | STD | 6 Cyl 3.3L | 3MZFE; MCU33L-AWAGKA, MCU33L-CWAGKA, MCU38L-AWAGKA, MCU38L-CWAGKA
View related parts
Lexus RX330 Pipe, Fuel Delivery, NO.2
Part Number: 23815-20021
$85.47 MSRP: $115.59
You Save: $30.12 (27%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Fuel Rail
- Replaces: 23815-20020
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2004-2006 Lexus RX330 | STD | 6 Cyl 3.3L | 3MZFE; MCU33L-AWAGKA, MCU33L-CWAGKA, MCU38L-AWAGKA, MCU38L-CWAGKA

Lexus RX330 Fuel Rail

The Lexus RX330 Fuel Rail brings pressurized gasoline from the electric pump directly to the individual injectors to ensure a steady flow of fuel for smooth power and clean emissions. Mounted above the intake runners, the Fuel Rail stores fuel at a constant pressure allowing the computer to fine-tune the pulse width of the injectors to allow the engine to sip lightly at idle but feed generously under load. Earlier vehicles relied on bulkier throttle body injection; however, every Lexus RX330 has a multiport setup that places injectors close to the valves for finer atomization. The Fuel Rail design helps support this layout as it works like a small pipeline to keep all six ports equally supplied, which increases efficiency and reduces unburned hydrocarbons. Across the production run, there have not been multiple radically different rails; rather, a single aluminum tube with integral mounts and passages works with a separate regulator to stabilize pressure. Later software updates refined control strategy rather than changing the hardware so owners won't find distinct generations of Fuel Rail to compare, only minor part number tweaks linked to component suppliers. In short, the Lexus badge on every RX330 conceals a reliable, corrosion-resistant Fuel Rail that works in concert with sensors such as the oxygen and mass airflow units to achieve a balance between economy, torque, and emissions with minimal complexity. This is consistent so that replacement rails can easily be interchanged among Lexus crossovers in the RX330 family without adaptation.

Should you need to purchase new auto parts for your vehicle, we strongly suggest you consider the genuine Lexus RX330 Fuel Rail available on LexusPartsNow.com. Our OEM Lexus RX330 Fuel Rail come with the reassurance of the manufacturer's warranty, a hassle-free return policy, and speedy delivery service, all at affordable prices online. Feel free to shop with confidence!

Lexus RX330 Fuel Rail Parts Questions & Experts Answers

Pipe, Fuel Delivery, NO.2
23815-20020
Q: How to remove and replace fuel injectors and Fuel Rail on Lexus RX330?
A:
To remove and replace fuel injectors in a vehicle, start by relieving fuel pressure and disconnecting the negative battery terminal. Remove the engine cover and air intake duct if necessary. For four-cylinder models, disconnect electrical connectors, and remove the fuel supply line and fuel rail mounting bolts. Lift the fuel rail and injectors as a single assembly, replacing O-rings if necessary. For V6 models, remove the strut brace and intake manifold. Disconnect electrical connectors, and remove the Vacuum Switching Valve mounting bracket. If removing the entire fuel rail assembly, disconnect the fuel supply line and crossover tube. For 2GR-FKS V6 models port injection replacement, remove the upper intake manifold, and disconnect the fuel lines and electrical connectors. For direct injection, remove the upper intake manifold and high-pressure Fuel Pump. Install new injectors and O-rings, then reassemble components in reverse order. Start the engine and check for leaks.