516+ 2003 Toyota 4Runner Engine & Drivetrain Parts - Page 18

Engine & Drivetrain (516 products)

Skyward Automotive

Part # SK89371

Fits All Trims

Accessory Drive Belt Tensioner Assembly

$51.32

Cometic Rover 4.0/4.6L V8 .070in MLS Cylinder Head Gasket - 94mm Bore - 10 Bolt Head

Cometic Gasket

Part # C4365-070

Fits All Trims

Cometic Rover 4.0/4.6L V8 .070in MLS Cylinder Head Gasket - 94mm Bore - 10 Bolt Head

$152.35

Yukon Gear Toyota 7.5in / 8in / & V6 Ring Gear Bolt Retainer Plate

Yukon Gear & Axle

Part # YSPBLT-032

Fits All Trims

Yukon Gear Toyota 7.5in / 8in / & V6 Ring Gear Bolt Retainer Plate

$8.89

King Engine Bearings

Part # CR888XP.026

Fits All Trims

King Engine Bearings Toyota 1UZ-FE/2UZ-FE/3UZ-FE (Size .026) Connecting Rod Bearings (Set of 8)

$186.27

Yukon Gear High Performance Gear Set For Toyota V6 in a 4.30 Ratio

Yukon Gear & Axle

Part # YG TV6-430-29

Fits All Trims

Yukon Gear High Performance Gear Set For Toyota V6 in a 4.30 Ratio

$448.89

Cometic 02+ Toyota FJ Cruiser 4.0L V6 95.5mm MLS .027in Head Gasket

Cometic Gasket

Part # C4556-027

Fits All Trims

Cometic 02+ Toyota FJ Cruiser 4.0L V6 95.5mm MLS .027in Head Gasket

$111.44

Cometic Toyota 1GR-FE .074in MLS Cylinder Head Gasket - 95.5mm Bore - With Single VVT-i - RHS

Cometic Gasket

Part # C4557-074

Fits All Trims

Cometic Toyota 1GR-FE .074in MLS Cylinder Head Gasket - 95.5mm Bore - With Single VVT-i - RHS

$141.27

Spectra Premium

Part # TOP32A

Fits All Trims

Engine Oil Pan

$54.57

Yukon Gear Toyota V6 Freeze Plug / 3/4in Thread

Yukon Gear & Axle

Part # YSPFP-04

Fits All Trims

Yukon Gear Toyota V6 Freeze Plug / 3/4in Thread

$11.89

Skyward Automotive

Part # SK594350

Fits All Trims

Engine Harmonic Balancer

$66.94

Mishimoto

Part # MMOFC-TOY-BK

Fits All Trims

Mishimoto Toyota Oil Filler Cap - Black

$55.24

Yukon Gear Bearing install Kit For New Toyota Clamshell Design Front Reverse Rotation Diff

Yukon Gear & Axle

Part # BK TLC-REV-B

Fits All Trims

Yukon Gear Bearing install Kit For New Toyota Clamshell Design Front Reverse Rotation Diff

$569.89

Cometic Toyota 1GR-FE/1UZ-FE/22R/22R-TEC Transmission-19-Bolt

Cometic Gasket

Part # C14118-060

Fits All Trims

Cometic Toyota 1GR-FE/1UZ-FE/22R/22R-TEC Transmission-19-Bolt

$28.80

Yukon Gear Ring Gear Bolt For Toyota T100 / Tacoma & 8in IFS Front

Yukon Gear & Axle

Part # YSPBLT-030

Fits All Trims

Yukon Gear Ring Gear Bolt For Toyota T100 / Tacoma & 8in IFS Front

$8.89

Yukon Rear Inner Axle Seal 03+ 4Runner 05+Tacoma 07-13 FJ Cruiser

Yukon Gear & Axle

Part # YMST1011

Fits All Trims

Yukon Rear Inner Axle Seal 03+ 4Runner 05+Tacoma 07-13 FJ Cruiser

$13.89

Cometic Toyota Gen-3 3S-GE/3S-GTE .056in MLS Cylinder Head Gasket - 87mm Bore

Cometic Gasket

Part # C4606-056

Fits All Trims

Cometic Toyota Gen-3 3S-GE/3S-GTE .056in MLS Cylinder Head Gasket - 87mm Bore

$134.43

Cometic Ford A4LD/4R44E/4R55E .060in AFM Transmission Oil Pan Gasket

Cometic Gasket

Part # C15247

Fits All Trims

Cometic Ford A4LD/4R44E/4R55E .060in AFM Transmission Oil Pan Gasket

$27.23

SCT Performance

Part # 30490

Fits All Trims

SCT BDX Window Mount

$21.91

Fel-Pro

Part # TOS18740

Fits All Trims

Fel-Pro 05-15 Toyota Tundra/03-15 4Runner/07-14 FJ Cruiser Transmission Oil Pan Gasket - 19 Bolt

$12.40

aFe POWER 03-09 Toyota 4Runner V6 4.0L / 10-14 Toyota FJ Cruiser V6 4.0L 76mm Billet Throttle Body

aFe

Part # 46-39103

Fits All Trims

aFe POWER 03-09 Toyota 4Runner V6 4.0L / 10-14 Toyota FJ Cruiser V6 4.0L 76mm Billet Throttle Body

$407.26

Frequently Asked Questions

Do these parts fit my 2003 Toyota 4Runner?

This page groups parts listed for the 2003 Toyota 4Runner. Some products fit every trim, while others depend on submodel, engine, drivetrain, or brake package. Use your trim in My Garage or the product page fitment check to confirm exact fit.

What engine & drivetrain options are available for my 2003 Toyota 4Runner?

We offer a wide selection of engine & drivetrain parts for the 2003 Toyota 4Runner. This page narrows the catalog to the year, make, and model; use your trim on product pages to confirm exact fit when a part only fits certain submodels.

What brands make parts for the 2003 Toyota 4Runner?

We carry parts from trusted brands including Cometic Gasket, Yukon Gear & Axle, Victor Reinz, Fel-Pro, and NGK, plus many more. Filter by brand to find your preferred manufacturer.

How fast do 2003 Toyota 4Runner parts ship?

Most in-stock items ship within 1-2 business days. Shipping rates are calculated at checkout based on your location.

What warranty do your 2003 Toyota 4Runner parts come with?

Warranty coverage varies by manufacturer but typically ranges from 1 year to lifetime. Each product page includes specific warranty information from the manufacturer.

2003 Toyota 4Runner(2,956 parts)

2003 Toyota 4Runner(2,956 parts)

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Other Toyota 4Runner Years

Engine & Drivetrain (516 products)

Accessory Drive Belt Tensioner Assembly

Cometic Rover 4.0/4.6L V8 .070in MLS Cylinder Head Gasket - 94mm Bore - 10 Bolt Head

Yukon Gear Toyota 7.5in / 8in / & V6 Ring Gear Bolt Retainer Plate

King Engine Bearings Toyota 1UZ-FE/2UZ-FE/3UZ-FE (Size .026) Connecting Rod Bearings (Set of 8)

Yukon Gear High Performance Gear Set For Toyota V6 in a 4.30 Ratio

Cometic 02+ Toyota FJ Cruiser 4.0L V6 95.5mm MLS .027in Head Gasket

Cometic Toyota 1GR-FE .074in MLS Cylinder Head Gasket - 95.5mm Bore - With Single VVT-i - RHS

Engine Oil Pan

Yukon Gear Toyota V6 Freeze Plug / 3/4in Thread

Engine Harmonic Balancer

Mishimoto Toyota Oil Filler Cap - Black

Yukon Gear Bearing install Kit For New Toyota Clamshell Design Front Reverse Rotation Diff

Cometic Toyota 1GR-FE/1UZ-FE/22R/22R-TEC Transmission-19-Bolt

Yukon Gear Ring Gear Bolt For Toyota T100 / Tacoma & 8in IFS Front

Yukon Rear Inner Axle Seal 03+ 4Runner 05+Tacoma 07-13 FJ Cruiser

Cometic Toyota Gen-3 3S-GE/3S-GTE .056in MLS Cylinder Head Gasket - 87mm Bore

Cometic Ford A4LD/4R44E/4R55E .060in AFM Transmission Oil Pan Gasket

SCT BDX Window Mount

Fel-Pro 05-15 Toyota Tundra/03-15 4Runner/07-14 FJ Cruiser Transmission Oil Pan Gasket - 19 Bolt

aFe POWER 03-09 Toyota 4Runner V6 4.0L / 10-14 Toyota FJ Cruiser V6 4.0L 76mm Billet Throttle Body

Frequently Asked Questions

Do these parts fit my 2003 Toyota 4Runner?

What engine & drivetrain options are available for my 2003 Toyota 4Runner?

What brands make parts for the 2003 Toyota 4Runner?

How fast do 2003 Toyota 4Runner parts ship?

What warranty do your 2003 Toyota 4Runner parts come with?