How to remove and replace fuel injectors and the fuel rail in a Nissan Frontier?

Relieve the fuel pressure, unplug the battery cable, and remove the upper intake manifold. Unplug the electrical connectors and take off the injector cap screws and cap. Pull the injectors from the fuel rail cup. Disconnect the fuel feed and return lines and disconnect the fuel pressure regulator vacuum hose. Remove the retaining bolts and lift the fuel rail and injectors as an assembly. Remove and discard the clips. Inspect the fuel rail insulators and replace them as needed. Install the insulators and lubricate them with oil. Replace the injector O-rings and lubricate them with oil. Install the injectors onto the fuel rail, install the new retaining clips, install the fuel rail, and tighten the bolts.

Genuine Nissan Frontier Fuel Rail

Engine Fuel Rail

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10 Fuel Rails found

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Nissan Frontier Pipe Assembly-Fuel
Part Number: 17521-EA200
$204.56 MSRP: $272.75
You Save: $68.19 (26%)

Add to Cart
Product Specifications
- Replaced by: 17521-EA20A
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
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Fits the following Vehicles:
- 2005-2008 Nissan Frontier | LE, Off-Road, SE | 6 Cyl 4.0L | VQ40DE
View related parts
Nissan Frontier Pipe Assembly-Fuel
Part Number: 17521-EA20A
$204.56 MSRP: $272.75
You Save: $68.19 (26%)

Add to Cart
Product Specifications
- Other Name: Fuel Rail
- Replaces: 17521-EA200
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
View More
Fits the following Vehicles:
- 2005-2019 Nissan Frontier | LE, Off-Road, PRO-4X, S, SE, SL, SV | 6 Cyl 4.0L | VQ40DE
Nissan Frontier Pipe Assembly-Fuel
Part Number: 17522-9BT0A
$238.66 MSRP: $318.22
You Save: $79.56 (26%)

Add to Cart
Product Specifications
- Other Name: Fuel Rail
- Replaced by: 17522-9BT1A
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
View More
Fits the following Vehicles:
- 2020-2021 Nissan Frontier | PRO-4X, S, SV | 6 Cyl 3.8 L GAS
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Nissan Frontier Tube Assembly Fuel
Part Number: 17520-EA020
$129.55 MSRP: $172.73
You Save: $43.18 (25%)

Add to Cart
Product Specifications
- Other Name: Tube Assy-Fuel
- Replaced by: 17520-EA02A
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
View More
Fits the following Vehicles:
- 2005-2007 Nissan Frontier | XE | 4 Cyl 2.5L | QR25DE
View related parts
Nissan Frontier Tube Assembly Fuel
Part Number: 17520-EA02A
$129.55 MSRP: $172.73
You Save: $43.18 (25%)

Add to Cart
Product Specifications
- Other Name: Tube Assy-Fuel; Fuel Rail
- Replaces: 17520-EA020
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
View More
Fits the following Vehicles:
- 2005-2019 Nissan Frontier | S, SE, SV, XE | 4 Cyl 2.5L | QR25DE
View related parts
Nissan Frontier Pipe Assembly
Part Number: 17521-4S100
$211.24 MSRP: $281.65
You Save: $70.41 (25%)

Add to Cart
Product Specifications
- Other Name: Pipe Assembly-Fuel
- Replaced by: 17521-4S10A
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
View More
Fits the following Vehicles:
- 1998-2004 Nissan Frontier | SC, SE, XE | 6 Cyl 3.3L | VG33E
Nissan Frontier Pipe Assembly-Fuel
Part Number: 17521-9BT0A
$238.66 MSRP: $318.22
You Save: $79.56 (26%)

Add to Cart
Product Specifications
- Other Name: Fuel Rail
- Replaced by: 17521-9BT1A
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
View More
Fits the following Vehicles:
- 2020-2021 Nissan Frontier | PRO-4X, S, SV | 6 Cyl 3.8 L GAS
View related parts
Nissan Frontier Pipe Assembly-Fuel
Part Number: 17523-0W000
$107.54 MSRP: $143.38
You Save: $35.84 (25%)

Add to Cart
Product Specifications
- Replaced by: 17523-0W00A
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
View More
Fits the following Vehicles:
- 1998-2004 Nissan Frontier | SC, SE, XE | 6 Cyl 3.3L | VG33E
View related parts
Nissan Frontier Tube Assembly Fuel
Part Number: 17520-3S510
Product Specifications
- Other Name: Tube Assy-Fuel
- Replaced by: 17520-3S51A
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
View More
Fits the following Vehicles:
- 1998-2004 Nissan Frontier | SE, STD, XE | 4 Cyl 2.4L | KA24DE
View related parts
Nissan Frontier Tube Assy-Fuel
Part Number: 17520-3S500
Product Specifications
- Replaced by: 17520-3S50A
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
View More
Fits the following Vehicles:
- 1998-2003 Nissan Frontier | SE, STD, XE | 4 Cyl 2.4L | KA24DE

Nissan Frontier Fuel Rail Parts Questions & Answers

Pipe Assembly
17521-4S100
Q: How to remove and replace fuel injectors and the fuel rail in a Nissan Frontier?
A: Relieve the fuel pressure, unplug the battery cable, and remove the upper intake manifold. Unplug the electrical connectors and take off the injector cap screws and cap. Pull the injectors from the fuel rail cup. Disconnect the fuel feed and return lines and disconnect the Fuel Pressure Regulator vacuum hose. Remove the retaining bolts and lift the fuel rail and injectors as an assembly. Remove and discard the clips. Inspect the fuel rail insulators and replace them as needed. Install the insulators and lubricate them with oil. Replace the injector O-rings and lubricate them with oil. Install the injectors onto the fuel rail, install the new retaining clips, install the fuel rail, and tighten the bolts.

Related Nissan Frontier Parts

Nissan Frontier Fuel Rail

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