Infiniti · Premium Parts

Infiniti

Premium OEM Parts Inventory

Engines, Transmissions & Parts

Discover our extensive inventory of 1,533 tested, high-quality used OEM Infiniti parts. Every component is rigorously inspected with exact mileage-based pricing, 90-day warranty, and nationwide shipping.

1,533

Total Parts in Inventory

Compatible Models

90 Days

Complete Warranty

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Brand Heritage

Infiniti has built a reputation for engineering excellence and automotive innovation.

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Our Infiniti parts inventory features genuine OEM components tested for quality and durability.

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Why Choose Infiniti From AUAPW

Access 1,533 verified Infiniti parts across 1 models with quality guarantees and expert support

Verified Inventory

Every part is inspected and verified for authenticity and quality standards

Fast Sourcing

Access to the largest network of verified suppliers with quick turnaround times

Quality Assured

All parts come with a 90-day warranty and guaranteed quality certification

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Save 40-70% compared to new OEM parts with transparent, no-hidden-fee quotes

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Get responses within 24 hours from our dedicated support team

Industry Leading

Trust the largest, most reliable used auto parts platform in America

Total Inventory

1,533

Quality Infiniti parts in stock, from common components to rare discontinued items.

Model Coverage

Compatible Infiniti models across multiple years, ensuring you find the perfect fit.

Warranty

90 Days

All Infiniti parts certified and guaranteed. Complete peace of mind on every purchase.

1,533 parts for Infiniti G20 — page 18 of 32

Filter by Material

Infiniti

SKU MANUAL-1995-infiniti-q45-engine-p-65933

engine

1995 Infiniti Q45 Engine - (4.5L, VIN N, 4th digit), Q45a (Full Active Suspension) - 85,000 miles

90 days Warranty

$1,460

Infiniti

SKU MANUAL-1995-infiniti-q45-engine-p-65934

engine

1995 Infiniti Q45 Engine - (4.5L, VIN N, 4th digit), Q45a (Full Active Suspension) - 120,000 miles

90 days Warranty

$1,280

Infiniti

SKU MANUAL-1995-infiniti-q45-transmission-p-65935

transmission

1995 Infiniti Q45 Transmission - AT - 90,000 miles

90 days Warranty

$1,405

Infiniti

SKU MANUAL-1995-infiniti-q45-transmission-p-65936

transmission

1995 Infiniti Q45 Transmission - AT - 115,000 miles

90 days Warranty

$1,180

Infiniti

SKU MANUAL-1996-infiniti-q45-engine-p-65937

engine

1996 Infiniti Q45 Engine - (4.5L, VIN N, 4th digit), traction control - 90,000 miles

90 days Warranty

$1,790

Infiniti

SKU MANUAL-1996-infiniti-q45-engine-p-65938

engine

1996 Infiniti Q45 Engine - (4.5L, VIN N, 4th digit), traction control - 110,000 miles

90 days Warranty

$1,580

Infiniti

SKU MANUAL-1996-infiniti-q45-engine-p-65939

engine

1996 Infiniti Q45 Engine - (4.5L, VIN N, 4th digit), w/o traction control - 90,000 miles

90 days Warranty

$1,790

Infiniti

SKU MANUAL-1996-infiniti-q45-engine-p-65940

engine

1996 Infiniti Q45 Engine - (4.5L, VIN N, 4th digit), w/o traction control - 110,000 miles

90 days Warranty

$1,580

Infiniti

SKU MANUAL-1996-infiniti-q45-transmission-p-65941

transmission

1996 Infiniti Q45 Transmission - AT - 90,000 miles

90 days Warranty

$1,490

Infiniti

SKU MANUAL-1996-infiniti-q45-transmission-p-65942

transmission

1996 Infiniti Q45 Transmission - AT - 105,000 miles

90 days Warranty

$1,290

Infiniti

SKU MANUAL-1997-infiniti-q45-engine-p-65943

engine

1997 Infiniti Q45 Engine - (4.1L, VIN B, 4th digit) - 85,000 miles

90 days Warranty

$1,460

Infiniti

SKU MANUAL-1997-infiniti-q45-engine-p-65944

engine

1997 Infiniti Q45 Engine - (4.1L, VIN B, 4th digit) - 120,000 miles

90 days Warranty

$1,280

Infiniti

SKU MANUAL-1997-infiniti-q45-transmission-p-65945

transmission

1997 Infiniti Q45 Transmission - AT - 85,000 miles

90 days Warranty

$1,280

Infiniti

SKU MANUAL-1997-infiniti-q45-transmission-p-65946

transmission

1997 Infiniti Q45 Transmission - AT - 115,000 miles

90 days Warranty

$1,070

Infiniti

SKU MANUAL-1998-infiniti-q45-engine-p-65947

engine

1998 Infiniti Q45 Engine - (4.1L, VIN B, 4th digit) - 90,000 miles

90 days Warranty

$1,730

Infiniti

SKU MANUAL-1998-infiniti-q45-engine-p-65948

engine

1998 Infiniti Q45 Engine - (4.1L, VIN B, 4th digit) - 110,000 miles

90 days Warranty

$1,460

Infiniti

SKU MANUAL-1998-infiniti-q45-transmission-p-65949

transmission

1998 Infiniti Q45 Transmission - AT - 85,000 miles

90 days Warranty

$1,280

Infiniti

SKU MANUAL-1998-infiniti-q45-transmission-p-65950

transmission

1998 Infiniti Q45 Transmission - AT - 115,000 miles

90 days Warranty

$1,070

Infiniti

SKU MANUAL-1999-infiniti-q45-engine-p-65951

engine

1999 Infiniti Q45 Engine - (4.1L, VIN B, 4th digit) - 85,000 miles

90 days Warranty

$1,460

Infiniti

SKU MANUAL-1999-infiniti-q45-engine-p-65952

engine

1999 Infiniti Q45 Engine - (4.1L, VIN B, 4th digit) - 120,000 miles

90 days Warranty

$1,280

Infiniti

SKU MANUAL-1999-infiniti-q45-transmission-p-65953

transmission

1999 Infiniti Q45 Transmission - AT - 85,000 miles

90 days Warranty

$1,280

Infiniti

SKU MANUAL-1999-infiniti-q45-transmission-p-65954

transmission

1999 Infiniti Q45 Transmission - AT - 115,000 miles

90 days Warranty

$1,070

Infiniti

SKU MANUAL-2000-infiniti-q45-engine-p-65955

engine

2000 Infiniti Q45 Engine - (4.1L, VIN B, 4th digit), from 11/99 - 90,000 miles

90 days Warranty

$1,730

Infiniti

SKU MANUAL-2000-infiniti-q45-engine-p-65956

engine

2000 Infiniti Q45 Engine - (4.1L, VIN B, 4th digit), from 11/99 - 110,000 miles

90 days Warranty

$1,460

Infiniti

SKU MANUAL-2000-infiniti-q45-engine-p-65957

engine

2000 Infiniti Q45 Engine - (4.1L, VIN B, 4th digit), thru 10/99 - 90,000 miles

90 days Warranty

$1,730

Infiniti

SKU MANUAL-2000-infiniti-q45-engine-p-65958

engine

2000 Infiniti Q45 Engine - (4.1L, VIN B, 4th digit), thru 10/99 - 110,000 miles

90 days Warranty

$1,460

Infiniti

SKU MANUAL-2000-infiniti-q45-transmission-p-65959

transmission

2000 Infiniti Q45 Transmission - AT - 85,000 miles

90 days Warranty

$1,280

Infiniti

SKU MANUAL-2000-infiniti-q45-transmission-p-65960

transmission

2000 Infiniti Q45 Transmission - AT - 115,000 miles

90 days Warranty

$1,070

Infiniti

SKU MANUAL-2001-infiniti-q45-engine-p-65961

engine

2001 Infiniti Q45 Engine - (4.1L, VIN B, 4th digit) - 90,000 miles

90 days Warranty

$1,730

Infiniti

SKU MANUAL-2001-infiniti-q45-engine-p-65962

engine

2001 Infiniti Q45 Engine - (4.1L, VIN B, 4th digit) - 110,000 miles

90 days Warranty

$1,460

Infiniti

SKU MANUAL-2001-infiniti-q45-transmission-p-65963

transmission

2001 Infiniti Q45 Transmission - AT - 85,000 miles

90 days Warranty

$1,280

Infiniti

SKU MANUAL-2001-infiniti-q45-transmission-p-65964

transmission

2001 Infiniti Q45 Transmission - AT - 115,000 miles

90 days Warranty

$1,070

Infiniti

SKU MANUAL-2002-infiniti-q45-engine-p-65965

engine

2002 Infiniti Q45 Engine - (4.5L, VIN B, 4th digit) - 85,000 miles

90 days Warranty

$1,460

Infiniti

SKU MANUAL-2002-infiniti-q45-engine-p-65966

engine

2002 Infiniti Q45 Engine - (4.5L, VIN B, 4th digit) - 120,000 miles

90 days Warranty

$1,280

Infiniti

SKU MANUAL-2002-infiniti-q45-transmission-p-65967

transmission

2002 Infiniti Q45 Transmission - AT, from 4/02 - 90,000 miles

90 days Warranty

$1,440

Infiniti

SKU MANUAL-2002-infiniti-q45-transmission-p-65968

transmission

2002 Infiniti Q45 Transmission - AT, from 4/02 - 110,000 miles

90 days Warranty

$1,240

Infiniti

SKU MANUAL-2002-infiniti-q45-transmission-p-65969

transmission

2002 Infiniti Q45 Transmission - AT, thru 3/02 - 90,000 miles

90 days Warranty

$1,405

Infiniti

SKU MANUAL-2002-infiniti-q45-transmission-p-65970

transmission

2002 Infiniti Q45 Transmission - AT, thru 3/02 - 115,000 miles

90 days Warranty

$1,180

Infiniti

SKU MANUAL-2003-infiniti-q45-engine-p-65971

engine

2003 Infiniti Q45 Engine - (4.5L, VIN B, 4th digit) - 90,000 miles

90 days Warranty

$1,790

Infiniti

SKU MANUAL-2003-infiniti-q45-engine-p-65972

engine

2003 Infiniti Q45 Engine - (4.5L, VIN B, 4th digit) - 110,000 miles

90 days Warranty

$1,580

Infiniti

SKU MANUAL-2003-infiniti-q45-transmission-p-65973

transmission

2003 Infiniti Q45 Transmission - AT, from 11/02 - 90,000 miles

90 days Warranty

$1,405

Infiniti

SKU MANUAL-2003-infiniti-q45-transmission-p-65974

transmission

2003 Infiniti Q45 Transmission - AT, from 11/02 - 115,000 miles

90 days Warranty

$1,180

Infiniti

SKU MANUAL-2003-infiniti-q45-transmission-p-65975

transmission

2003 Infiniti Q45 Transmission - AT, thru 10/02 - 87,000 miles

90 days Warranty

$1,430

Infiniti

SKU MANUAL-2003-infiniti-q45-transmission-p-65976

transmission

2003 Infiniti Q45 Transmission - AT, thru 10/02 - 106,000 miles

90 days Warranty

$1,190

Infiniti

SKU MANUAL-2004-infiniti-q45-engine-p-65977

engine

2004 Infiniti Q45 Engine - (4.5L, VIN B, 4th digit) - 90,000 miles

90 days Warranty

$1,790

Infiniti

SKU MANUAL-2004-infiniti-q45-engine-p-65978

engine

2004 Infiniti Q45 Engine - (4.5L, VIN B, 4th digit) - 110,000 miles

90 days Warranty

$1,580

Infiniti

SKU MANUAL-2004-infiniti-q45-transmission-p-65979

transmission

2004 Infiniti Q45 Transmission - AT - 87,000 miles

90 days Warranty

$1,430

Infiniti

SKU MANUAL-2004-infiniti-q45-transmission-p-65980

transmission

2004 Infiniti Q45 Transmission - AT - 106,000 miles

90 days Warranty

$1,190

Infiniti

Engines, Transmissions & Parts

Brand Heritage

Quality Assurance

Why Choose Infiniti From AUAPW

Verified Inventory

Fast Sourcing

Quality Assured

Best Pricing

24-Hour Support

Industry Leading

Total Inventory

Model Coverage

Warranty

Filter by Material

1995 Infiniti Q45 Engine - (4.5L, VIN N, 4th digit), Q45a (Full Active Suspension) - 85,000 miles

1995 Infiniti Q45 Engine - (4.5L, VIN N, 4th digit), Q45a (Full Active Suspension) - 120,000 miles

1995 Infiniti Q45 Transmission - AT - 90,000 miles

1995 Infiniti Q45 Transmission - AT - 115,000 miles

1996 Infiniti Q45 Engine - (4.5L, VIN N, 4th digit), traction control - 90,000 miles

1996 Infiniti Q45 Engine - (4.5L, VIN N, 4th digit), traction control - 110,000 miles

1996 Infiniti Q45 Engine - (4.5L, VIN N, 4th digit), w/o traction control - 90,000 miles

1996 Infiniti Q45 Engine - (4.5L, VIN N, 4th digit), w/o traction control - 110,000 miles

1996 Infiniti Q45 Transmission - AT - 90,000 miles

1996 Infiniti Q45 Transmission - AT - 105,000 miles

1997 Infiniti Q45 Engine - (4.1L, VIN B, 4th digit) - 85,000 miles

1997 Infiniti Q45 Engine - (4.1L, VIN B, 4th digit) - 120,000 miles

1997 Infiniti Q45 Transmission - AT - 85,000 miles

1997 Infiniti Q45 Transmission - AT - 115,000 miles

1998 Infiniti Q45 Engine - (4.1L, VIN B, 4th digit) - 90,000 miles

1998 Infiniti Q45 Engine - (4.1L, VIN B, 4th digit) - 110,000 miles

1998 Infiniti Q45 Transmission - AT - 85,000 miles

1998 Infiniti Q45 Transmission - AT - 115,000 miles

1999 Infiniti Q45 Engine - (4.1L, VIN B, 4th digit) - 85,000 miles

1999 Infiniti Q45 Engine - (4.1L, VIN B, 4th digit) - 120,000 miles

1999 Infiniti Q45 Transmission - AT - 85,000 miles

1999 Infiniti Q45 Transmission - AT - 115,000 miles

2000 Infiniti Q45 Engine - (4.1L, VIN B, 4th digit), from 11/99 - 90,000 miles

2000 Infiniti Q45 Engine - (4.1L, VIN B, 4th digit), from 11/99 - 110,000 miles

2000 Infiniti Q45 Engine - (4.1L, VIN B, 4th digit), thru 10/99 - 90,000 miles

2000 Infiniti Q45 Engine - (4.1L, VIN B, 4th digit), thru 10/99 - 110,000 miles

2000 Infiniti Q45 Transmission - AT - 85,000 miles

2000 Infiniti Q45 Transmission - AT - 115,000 miles

2001 Infiniti Q45 Engine - (4.1L, VIN B, 4th digit) - 90,000 miles

2001 Infiniti Q45 Engine - (4.1L, VIN B, 4th digit) - 110,000 miles

2001 Infiniti Q45 Transmission - AT - 85,000 miles

2001 Infiniti Q45 Transmission - AT - 115,000 miles

2002 Infiniti Q45 Engine - (4.5L, VIN B, 4th digit) - 85,000 miles

2002 Infiniti Q45 Engine - (4.5L, VIN B, 4th digit) - 120,000 miles

2002 Infiniti Q45 Transmission - AT, from 4/02 - 90,000 miles

2002 Infiniti Q45 Transmission - AT, from 4/02 - 110,000 miles

2002 Infiniti Q45 Transmission - AT, thru 3/02 - 90,000 miles

2002 Infiniti Q45 Transmission - AT, thru 3/02 - 115,000 miles

2003 Infiniti Q45 Engine - (4.5L, VIN B, 4th digit) - 90,000 miles

2003 Infiniti Q45 Engine - (4.5L, VIN B, 4th digit) - 110,000 miles

2003 Infiniti Q45 Transmission - AT, from 11/02 - 90,000 miles

2003 Infiniti Q45 Transmission - AT, from 11/02 - 115,000 miles

2003 Infiniti Q45 Transmission - AT, thru 10/02 - 87,000 miles

2003 Infiniti Q45 Transmission - AT, thru 10/02 - 106,000 miles

2004 Infiniti Q45 Engine - (4.5L, VIN B, 4th digit) - 90,000 miles

2004 Infiniti Q45 Engine - (4.5L, VIN B, 4th digit) - 110,000 miles

2004 Infiniti Q45 Transmission - AT - 87,000 miles

2004 Infiniti Q45 Transmission - AT - 106,000 miles

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