878+ 2003 Jeep Wrangler Engine & Drivetrain Parts - Page 5

Engine & Drivetrain (878 products)

OMIX

Part # 12303.16

Choose Trim

Omix Door Glass Channel L or R 97-06 Jeep Wrangler TJ

$52.70

PRP 03-06 Jeep TJ Seat Adapter Mount (Passenger Side)

PRP Seats

Part # C24P

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PRP 03-06 Jeep TJ Seat Adapter Mount (Passenger Side)

$117.75

ARB

Part # RD109

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ARB Airlocker Dana44 35Spl 3.92&Up S/N

$1299.95

Yukon Gear 4340 Chrome Moly Alloy Axle For Model 35 / HD / C/Clip / Drum Brakes / Left Hand

Yukon Gear & Axle

Part # YA WM35C-30-L-HD

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Yukon Gear 4340 Chrome Moly Alloy Axle For Model 35 / HD / C/Clip / Drum Brakes / Left Hand

$471.89

Eaton

Part # 912A553

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Eaton Detroit Truetrac Differential 29 Spline 1.21in Axle Shaft Dia 2.73 & Up Ratio Rear 8.375in

$999.51

Yukon Gear 7/16in to 3/8in Ring Gear Bolt Spacer Sleeve

Yukon Gear & Axle

Part # YSPBLT-027

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Yukon Gear 7/16in to 3/8in Ring Gear Bolt Spacer Sleeve

$11.89

Yukon Gear High Performance Replacement Gear Set For Dana 30 Short Pinion in a 3.55 Ratio

Yukon Gear & Axle

Part # YG D30S-355TJ

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Yukon Gear High Performance Replacement Gear Set For Dana 30 Short Pinion in a 3.55 Ratio

$569.89

USA Standard Spartan Locker Model 35 Spartan Locker Cross Pin

Yukon Gear & Axle

Part # SL XP-M35

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USA Standard Spartan Locker Model 35 Spartan Locker Cross Pin

$56.89

USA Standard Replacement Ring & Pinion Gear Set For Dana 44 in a 3.08 Ratio

Yukon Gear & Axle

Part # ZG D44-308

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USA Standard Replacement Ring & Pinion Gear Set For Dana 44 in a 3.08 Ratio

$320.89

Clevite

Part # SH1980S

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Clevite Jeep 4 2.5L 1983-02 Camshaft Bearing Set

$59.11

Yukon Gear Rplcmnt Pinion Nut For Model 20 & 35 / Dana 30/44 JK - 7/8-20 Thread / 1 1/8 Socket

Yukon Gear & Axle

Part # YSPPN-012

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Yukon Gear Rplcmnt Pinion Nut For Model 20 & 35 / Dana 30/44 JK - 7/8-20 Thread / 1 1/8 Socket

$14.89

Fel-Pro

Part # TCS45458

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Fel-Pro Jeep Grand Cherokee TCS 45458 Engine Timing Cover Gasket Set

$22.85

Fel-Pro

Part # 61326

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Fel-Pro Chrysler Town & Country 61326 Fuel Injection Idle Air Control Valve Seal

$5.54

Fel-Pro

Part # 70301

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Fel-Pro Jeep Grand Cherokee 70301 Engine Oil Filter Adapter Seal

$1.33

ARB

Part # RD116

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ARB Airlocker Dana44 30Spl 3.92&Up S/N.

$1299.95

ContiTech

Part # 4060763

Fits All Trims

Multi-V Belt

$28.81

aFe Diff Cover 97-18 Jeep Wrangler (TJ/JK) ONLY Dana 44 Axle Front or Rear (Pro Series)

aFe

Part # 46-71110B

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aFe Diff Cover 97-18 Jeep Wrangler (TJ/JK) ONLY Dana 44 Axle Front or Rear (Pro Series)

$344.65

ARB

Part # RD147

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ARB Airlocker Dana44 35Spl 3.73&Dn S/N

$1299.95

JKS Manufacturing

Part # JKS9904

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JKS Manufacturing 97-06 Jeep Wrangler TJ 1.25in Body Lift

$143.95

MAHLE Original Chrysler Cirrus 00-95 Engine Valve Stem Seal Set

Victor Reinz

Part # SS45844

Choose Trim

MAHLE Original Chrysler Cirrus 00-95 Engine Valve Stem Seal Set

$19.39

Frequently Asked Questions

Do these parts fit my 2003 Jeep Wrangler?

This page groups parts listed for the 2003 Jeep Wrangler. 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 Jeep Wrangler?

We offer a wide selection of engine & drivetrain parts for the 2003 Jeep Wrangler. 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 Jeep Wrangler?

We carry parts from trusted brands including Yukon Gear & Axle, OMIX, Fel-Pro, Rugged Ridge, and Clevite, plus many more. Filter by brand to find your preferred manufacturer.

How fast do 2003 Jeep Wrangler 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 Jeep Wrangler 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 Jeep Wrangler(3,717 parts)

2003 Jeep Wrangler(3,717 parts)

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Other Jeep Wrangler Years

Engine & Drivetrain (878 products)

Omix Door Glass Channel L or R 97-06 Jeep Wrangler TJ

PRP 03-06 Jeep TJ Seat Adapter Mount (Passenger Side)

ARB Airlocker Dana44 35Spl 3.92&Up S/N

Yukon Gear 4340 Chrome Moly Alloy Axle For Model 35 / HD / C/Clip / Drum Brakes / Left Hand

Eaton Detroit Truetrac Differential 29 Spline 1.21in Axle Shaft Dia 2.73 & Up Ratio Rear 8.375in

Yukon Gear 7/16in to 3/8in Ring Gear Bolt Spacer Sleeve

Yukon Gear High Performance Replacement Gear Set For Dana 30 Short Pinion in a 3.55 Ratio

USA Standard Spartan Locker Model 35 Spartan Locker Cross Pin

USA Standard Replacement Ring & Pinion Gear Set For Dana 44 in a 3.08 Ratio

Clevite Jeep 4 2.5L 1983-02 Camshaft Bearing Set

Yukon Gear Rplcmnt Pinion Nut For Model 20 & 35 / Dana 30/44 JK - 7/8-20 Thread / 1 1/8 Socket

Fel-Pro Jeep Grand Cherokee TCS 45458 Engine Timing Cover Gasket Set

Fel-Pro Chrysler Town & Country 61326 Fuel Injection Idle Air Control Valve Seal

Fel-Pro Jeep Grand Cherokee 70301 Engine Oil Filter Adapter Seal

ARB Airlocker Dana44 30Spl 3.92&Up S/N.

Multi-V Belt

aFe Diff Cover 97-18 Jeep Wrangler (TJ/JK) ONLY Dana 44 Axle Front or Rear (Pro Series)

ARB Airlocker Dana44 35Spl 3.73&Dn S/N

JKS Manufacturing 97-06 Jeep Wrangler TJ 1.25in Body Lift

MAHLE Original Chrysler Cirrus 00-95 Engine Valve Stem Seal Set

Frequently Asked Questions

Do these parts fit my 2003 Jeep Wrangler?

What engine & drivetrain options are available for my 2003 Jeep Wrangler?

What brands make parts for the 2003 Jeep Wrangler?

How fast do 2003 Jeep Wrangler parts ship?

What warranty do your 2003 Jeep Wrangler parts come with?