551+ 2003 Toyota Tundra Engine & Drivetrain Base Parts - Page 12

Base · Engine & Drivetrain (390 products)

Exact-fit parts for the 2003 Toyota Tundra Base.

Cometic Ford AOD-E/AODE-W/4R70-W .060in AFM Transmission Oil Pan Gasket

Cometic Gasket

Part # C15625

Confirmed Fit

Cometic Ford AOD-E/AODE-W/4R70-W .060in AFM Transmission Oil Pan Gasket

$27.23

MAHLE Original Toyota 4Runner 02-96 Camshaft Seal Set

Victor Reinz

Part # JV5024

Confirmed Fit

MAHLE Original Toyota 4Runner 02-96 Camshaft Seal Set

$48.31

Yukon Ring & Pinion Gear Kit Front & Rear for Toyota 8.4/8IFS Diff (w/o Factory Locker) 4.11 Ratio

Yukon Gear & Axle

Part # YGKT005-410-4

Confirmed Fit

Yukon Ring & Pinion Gear Kit Front & Rear for Toyota 8.4/8IFS Diff (w/o Factory Locker) 4.11 Ratio

$2197.89

Cometic Toyota Gen-3 3S-GE/3S-GTE .066in MLS Cylinder Head Gasket - 87mm Bore

Cometic Gasket

Part # C4606-066

Confirmed Fit

Cometic Toyota Gen-3 3S-GE/3S-GTE .066in MLS Cylinder Head Gasket - 87mm Bore

$134.43

Mishimoto

Part # MMOFC-TOY-RD

Confirmed Fit

Mishimoto Toyota Oil Filler Cap - Red

$55.24

Dorman

Part # 594-201

Fits with Conditions

Harmonic Balancer Assembly

$275.57

Skyward Automotive

Part # SK16940

Fits with Conditions

Engine Crankshaft Seal

$5.55

Cometic Rover 4.0/4.6L V8 .027in MLS Cylinder Head Gasket - 94mm Bore - 10 Bolt Head

Cometic Gasket

Part # C4365-027

Confirmed Fit

Cometic Rover 4.0/4.6L V8 .027in MLS Cylinder Head Gasket - 94mm Bore - 10 Bolt Head

$108.98

Eaton

Part # 14216-1

Confirmed Fit

Eaton ELocker4 Differential 30 Spline Toyota Tacoma/Sequoia/Tundra/T-100

$1638.81

Yukon Ring & Pinion Gear Kit Front & Rear for Toyota 8.4/8IFS Diff (w/o Factory Locker) 4.88 Ratio

Yukon Gear & Axle

Part # YGKT005-488-3

Confirmed Fit

Yukon Ring & Pinion Gear Kit Front & Rear for Toyota 8.4/8IFS Diff (w/o Factory Locker) 4.88 Ratio

$2197.89

Cometic Mitsubishi 6G72 .070in MLS Cylinder Head Gasket - 95mm Bore - 24 Valve

Cometic Gasket

Part # C4240-070

Confirmed Fit

Cometic Mitsubishi 6G72 .070in MLS Cylinder Head Gasket - 95mm Bore - 24 Valve

$134.43

Cometic GM LGD/LZ4/LZ8/LZ9/LZE/LZG High Value .070in MLS Cylinder Head Gasket - 101mm Bore - LHS

Cometic Gasket

Part # C5226-070

Confirmed Fit

Cometic GM LGD/LZ4/LZ8/LZ9/LZE/LZG High Value .070in MLS Cylinder Head Gasket - 101mm Bore - LHS

$142.14

Yukon Ring & Pinion Gear Kit Front & Rear for Toyota 8/8IFS Diff (w/Factory Locker) 5.29 Ratio

Yukon Gear & Axle

Part # YGKT006-529-4

Confirmed Fit

Yukon Ring & Pinion Gear Kit Front & Rear for Toyota 8/8IFS Diff (w/Factory Locker) 5.29 Ratio

$2053.85

USA Standard Master Overhaul Kit For Toyota T100 and Tacoma Rear Diff / w/o Factory Locker

Yukon Gear & Axle

Part # ZK T100

Confirmed Fit

USA Standard Master Overhaul Kit For Toyota T100 and Tacoma Rear Diff / w/o Factory Locker

$521.89

Cometic Honda H22A1/H22A2 .074in MLS Cylinder Head Gasket - 87mm Bore

Cometic Gasket

Part # C4255-074

Confirmed Fit

Cometic Honda H22A1/H22A2 .074in MLS Cylinder Head Gasket - 87mm Bore

$133.70

MAHLE Original Toyota 4Runner 02-96 Cylinder Head Gasket (Left)

Victor Reinz

Part # 54138A

Confirmed Fit

MAHLE Original Toyota 4Runner 02-96 Cylinder Head Gasket (Left)

$92.89

Yukon Ring & Pinion Gear Kit Front & Rear for Toyota 8/8IFS Diff (w/Factory Locker) 4.88 Ratio

Yukon Gear & Axle

Part # YGKT006-488-4

Confirmed Fit

Yukon Ring & Pinion Gear Kit Front & Rear for Toyota 8/8IFS Diff (w/Factory Locker) 4.88 Ratio

$2099.20

Yukon GM 8.5/12P/12T / Ford 8.8in Differential Dura Grip 800lb Spring Kit

Yukon Gear & Axle

Part # YDG-SPRK29591

Confirmed Fit

Yukon GM 8.5/12P/12T / Ford 8.8in Differential Dura Grip 800lb Spring Kit

$179.67

Cometic Rover 4.0/4.6L V8 .092in MLS Cylinder Head Gasket - 94mm Bore - 10 Bolt Head

Cometic Gasket

Part # C4365-092

Confirmed Fit

Cometic Rover 4.0/4.6L V8 .092in MLS Cylinder Head Gasket - 94mm Bore - 10 Bolt Head

$163.97

Yukon Gear Ring & Pinion Gear Kit Package Front & Rear with Install Kits - Toyota 9.5/9.5

Yukon Gear & Axle

Part # YGKT010-488

Confirmed Fit

Yukon Gear Ring & Pinion Gear Kit Package Front & Rear with Install Kits - Toyota 9.5/9.5

$1626.70

Frequently Asked Questions

Do these parts fit my 2003 Toyota Tundra Base?

This page groups parts listed for the 2003 Toyota Tundra Base. 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 Tundra Base?

We offer a wide selection of engine & drivetrain parts for the 2003 Toyota Tundra Base. 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 Tundra Base?

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

How fast do 2003 Toyota Tundra Base 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 Tundra Base 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 Tundra(2,758 parts)

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Other Toyota Tundra Years

2003 Toyota Tundra(2,758 parts)

Shop by Problem

Other Toyota Tundra Years

Base · Engine & Drivetrain (390 products)

Cometic Ford AOD-E/AODE-W/4R70-W .060in AFM Transmission Oil Pan Gasket

MAHLE Original Toyota 4Runner 02-96 Camshaft Seal Set

Yukon Ring & Pinion Gear Kit Front & Rear for Toyota 8.4/8IFS Diff (w/o Factory Locker) 4.11 Ratio

Cometic Toyota Gen-3 3S-GE/3S-GTE .066in MLS Cylinder Head Gasket - 87mm Bore

Mishimoto Toyota Oil Filler Cap - Red

Harmonic Balancer Assembly

Engine Crankshaft Seal

Cometic Rover 4.0/4.6L V8 .027in MLS Cylinder Head Gasket - 94mm Bore - 10 Bolt Head

Eaton ELocker4 Differential 30 Spline Toyota Tacoma/Sequoia/Tundra/T-100

Yukon Ring & Pinion Gear Kit Front & Rear for Toyota 8.4/8IFS Diff (w/o Factory Locker) 4.88 Ratio

Cometic Mitsubishi 6G72 .070in MLS Cylinder Head Gasket - 95mm Bore - 24 Valve

Cometic GM LGD/LZ4/LZ8/LZ9/LZE/LZG High Value .070in MLS Cylinder Head Gasket - 101mm Bore - LHS

Yukon Ring & Pinion Gear Kit Front & Rear for Toyota 8/8IFS Diff (w/Factory Locker) 5.29 Ratio

USA Standard Master Overhaul Kit For Toyota T100 and Tacoma Rear Diff / w/o Factory Locker

Cometic Honda H22A1/H22A2 .074in MLS Cylinder Head Gasket - 87mm Bore

MAHLE Original Toyota 4Runner 02-96 Cylinder Head Gasket (Left)

Yukon Ring & Pinion Gear Kit Front & Rear for Toyota 8/8IFS Diff (w/Factory Locker) 4.88 Ratio

Yukon GM 8.5/12P/12T / Ford 8.8in Differential Dura Grip 800lb Spring Kit

Cometic Rover 4.0/4.6L V8 .092in MLS Cylinder Head Gasket - 94mm Bore - 10 Bolt Head

Yukon Gear Ring & Pinion Gear Kit Package Front & Rear with Install Kits - Toyota 9.5/9.5

Frequently Asked Questions

Do these parts fit my 2003 Toyota Tundra Base?

What engine & drivetrain options are available for my 2003 Toyota Tundra Base?

What brands make parts for the 2003 Toyota Tundra Base?

How fast do 2003 Toyota Tundra Base parts ship?

What warranty do your 2003 Toyota Tundra Base parts come with?