2018 Kia Optima Steering Parts

This table covers the steering knuckles that carry the hub, caliper and ball joints. Read more

5 Knuckle parts for the 2018 Kia Optima come from 3 brands — ACKOJA, DORMAN and HYUNDAI. The "Popular" part is DORMAN 686452. 4 parts fit every engine; the other 1 is engine-specific.

In the Daily Driver grade, ACKOJA supplies 2 parts: grouped for everyday commuting duty. A representative part number is ACKOJA A520572.

The Economy section lists 2 options from DORMAN — the catalog's value-priced group. DORMAN 686452 is listed in this group.

1 further part sits outside the graded sections, with the same engine-level match.

Listed part numbers: DORMAN 686452, ACKOJA A520572 and ACKOJA A520573, plus the other parts above.

This table covers the steering gear assemblies that turn the tie rods. Typical signs include fluid at a torn boot, a growl when you turn, or play that the inner tie rods do not explain. Flush the old power-steering fluid with the rack — grit in the old fluid is the usual cause of a repeat leak. Read more

4 Rack and Pinion parts for the 2018 Kia Optima come from 3 brands — AAE, TERREPOWER and HL MANDO.

The New section lists 1 option from AAE — brand-new units rather than rebuilt ones. AAE 4293N is listed in this group.

The Remanufactured section lists 1 option from TERREPOWER — factory-rebuilt units with new wear components. TERREPOWER 2130150 is listed in this group.

2 further parts sit outside the graded sections, with the same engine-level match.

Part numbers include AAE 4293N, TERREPOWER 2130150 and AAE 4286N, among others listed above.

This table covers the rubber boots that seal the inner tie-rod joints on the rack. Read more

One part is listed for the 2018 Kia Optima — BECK/ARNLEY 1033149.

This table covers the couplers in the steering shaft. Read more

This group shows a single part: AAE MGC001.

This table covers the inner and outer tie-rod ends that steer each front knuckle. Typical signs include play on center, a feathered front tire, or a boot that has split and packed with grit. Replace inner and outer ends together on a high-mileage axle, then get an alignment. Read more

58 Tie Rod End parts are listed for the 2018 Kia Optima, from MEVOTECH, MOOG, SUSPENSIA and 10 other brands. DELPHI TA3379 carries the "Popular" badge. Daily Driver, Economy and Premium are all represented, and Economy alone accounts for 30 parts.