ORIGINAL AURUSU.S.-Made • Lifetime Warranty

AURUS

Aurus OEM Set of 6 Fuel Injectors for 2002-2004 Buick Chevy GMC Isuzu Oldsmobile 4.2L 25313185

VERIFIED FITMENT

Buick RainierChevrolet TrailblazerChevrolet Trailblazer EXT+5 more
$159.99
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Part Numbers

OEM / Manufacturer Part Number

25313185, 19244623

Other Part Numbers

FJ10578, 25317671, 17113794, 12569573, 16-971, MP3075, 67366, 832-11178, 800-1322N, 1AMFI00099, FJ319

Aurus OEM Set of 6 Fuel Injectors for 2002-2004 Buick Chevy GMC Isuzu Oldsmobile 4.2L 25313185 — view 1

Fitment

  • 2004Buick Rainier4.2L
  • 2003–2004Chevrolet Trailblazer EXT4.2L
  • 2002–2004Chevrolet Trailblazer4.2L
  • 2002–2004GMC Envoy XL4.2L
  • 2004GMC Envoy XUV4.2L
  • 2002–2004GMC Envoy4.2L
  • 2003–2004Isuzu Ascender4.2L
  • 2002–2004Oldsmobile Bravada4.2L

8 vehicle fitments

Part Numbers

OEM / Manufacturer Part Number

25313185, 19244623

Other Part Numbers

FJ10578, 25317671, 17113794, 12569573, 16-971, MP3075, 67366, 832-11178, 800-1322N, 1AMFI00099, FJ319

Item Specifics

Country of OriginUnited States
Amount of Injectors included6 pieces
Manufacturer Part Number25313185
BrandAURUS
SpecificsEV6 / Mulltec 2 port / 4 Hole Nozzle
Interchange Part NumberFJ10578, 25317671 17113794 12569573
Manufacturer WarrantyLifetime
OE/OEM Part Number25313185, 19244623
ManufacturerAURUS
Fuel Injectors For #12004 Buick Rainier; GMC Envoy XUV 4.2L I6
Fuel Injectors For #22003 2004 Chevrolet Trailblazer EXT; Isuzu Ascender 4.2L I6
Other part numbers16-971 MP3075 67366 832-11178 800-1322N 1AMFI00099 FJ319
EngineGeneral Motors 4.2L LL8 Atlas Vortec 4200 motor
Fitment2002 2003 2004 GMC Envoy XL; GMC Envoy 4.2L I6, 2002 2003 2004 Oldsmobile Bravada; Chevrolet Trailblazer 4.2L I6

Description

Engineered & Tested for OEM-Level Reliability

This fuel injector is engineered and assembled to deliver precise fuel flow and consistent engine operation under real driving conditions.

Each unit is produced using high-quality internal components and assembled with new seals and O-rings to ensure durability, proper sealing, and long-term stability.

Every injector undergoes a controlled multi-stage validation process, including high-pressure leak testing, flow rate calibration, spray pattern and atomization analysis, and electrical response verification.

Precision machining and controlled assembly help ensure exact fitment and alignment with OEM specifications.

Final calibration and testing are performed to support consistent fuel delivery, smooth engine operation, and long-term reliability.

Direct Fit & Plug-and-Play

No tuning or modification is required. Designed to match OEM specifications for seamless installation and dependable operation.

Please confirm compatibility using the fitment section above before purchase.

Warranty

Lifetime Warranty

All AURUS fuel injectors are backed by a Lifetime Warranty. If any injector fails under normal use, we will replace it free of charge — no questions asked.

What's Covered

Manufacturing defects, electrical failure, flow performance degradation, and leaks under normal operating conditions.

Not Covered

Physical damage, misuse, improper installation, or use with incompatible vehicles not listed in fitment.

Shipping & Returns

Free Same Day or Next Business Day Shipping

Orders placed before 3:00 PM PST ship the same business day.

USA Standard Delivery

3–7 business days

FREE

USA Priority Shipping

2–3 business days

$12.99

USA Overnight

Next business day

$49.99

30-Day Hassle-Free Returns or Replacements

Not satisfied? Return any unused item within 30 days for a full refund or replacement. Return shipping is on us for defective items.

100% Quality Assurance

Each Unit Tested Individually

Quality Assurance

Engineered for Exact Tolerances

OEM-level precision manufacturing and quality assurance

Manufacturing

  • New high-pressure injector body
  • OEM internal components
  • New OEM seals, O-rings, filters
  • Precision CNC calibration

Testing

  • Multi-stage flow testing
  • Spray pattern validation
  • Leak testing
  • Electrical response testing
  • Engine simulation testing

Technical Standards

  • OEM specifications compliance
  • Flow-matched calibration
  • Pressure tolerance validation
  • Electrical response testing

Not Sure If You Need This Part?

Common symptoms that point to a failing fuel injector. Read the diagnostic guides before you buy.

$159.99

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