2005 Kia Optima Engine Parts

This table covers the Balance Shaft bearings. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly. Read more

This group shows a single part: MAHLE / CLEVITE SH1469S.

This table covers the Balance Shaft belts. Typical signs include squeal on cold start, cracked ribs, or glazing. Spin the tensioner and idlers by hand while the belt is off. Read more

13 Balance Shaft Belt parts are listed for the 2005 Kia Optima, from AUTO 7, CLOYES, ITM ENGINE COMPONENTS and 10 other brands. CONTINENTAL 40314 carries the "Popular" badge.

In the Economy grade, AUTO 7, CLOYES, ITM ENGINE COMPONENTS and 2 other brands supply 5 parts: the catalog's value-priced group. A representative part number is AUTO 7 6340350.

The Standard Replacement section lists 6 options from CONTINENTAL, DAYCO, GATES and 3 other brands — built to original-equipment specification. CONTINENTAL 40314 is listed in this group.

2 ungrouped parts are not assigned to a grade, with the same engine-level match.

This table covers the Balance Shaft Belt tensioners. Typical signs include belt flutter, a chirp that returns after a new belt, or an arm that no longer damps. Replace the tensioner with the belt at higher mileage. Read more

6 Balance Shaft Belt Tensioner parts for the 2005 Kia Optima come from 6 brands — GATES, GMB, BECK/ARNLEY and 3 other brands. The "Popular" part is GATES T41038.

Listed part numbers: GATES T41038, GMB 4461072 and BECK/ARNLEY 0241247, plus the other parts above.

This table covers the wear sleeves used to restore a Balance Shaft seal surface. Read more

3 Balance Shaft Repair Sleeve parts are listed for the 2005 Kia Optima, from NATIONAL, SCHAEFFLER and WJB / INMOTION PARTS.

Listed part numbers: NATIONAL 99098, SCHAEFFLER SR3458 and WJB / INMOTION PARTS WS99098.

This table covers the seals at the Balance Shaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

5 Balance Shaft Seal parts are listed for the 2005 Kia Optima, from JAPANESE OE, NATIONAL, BCA and 1 other brand. NATIONAL 712007 carries the "Popular" badge.

This group includes NATIONAL 712007, BCA NS712007 and JAPANESE OE F4225 and the remaining parts above.

This table covers the Camshaft plugs. Typical signs include a leak at the drain or glow-plug hole, or a plug that has rounded off. Replace the crush washer and torque to the spec in the notes. Read more

4 Camshaft Plug parts are listed for the 2005 Kia Optima, from FEL-PRO, HYUNDAI, MAHLE / CLEVITE and 1 other brand.

This group includes FEL-PRO CP75023, HYUNDAI 2232735504 and MAHLE / CLEVITE 67728 and the remaining parts above.

This table covers the wear sleeves used to restore a Camshaft seal surface. Read more

10 Camshaft Repair Sleeve parts for the 2005 Kia Optima come from 6 brands — NATIONAL, SCHAEFFLER, TIMKEN and 3 other brands. The "Popular" part is NATIONAL 99139. 1 part fits every engine; the other 9 are engine-specific.

This table covers the seals at each camshaft end. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

33 Camshaft Seal parts for the 2005 Kia Optima come from 15 brands — FEL-PRO, NATIONAL, APEX and 12 other brands. The "Popular" part is BCA NS223010. A list this long means Camshaft Seal applications vary by configuration — the notes carry the qualifiers.

This table covers the Circular / Semi-Circular plugs. Typical signs include a leak at the drain or glow-plug hole, or a plug that has rounded off. Replace the crush washer and torque to the spec in the notes. Read more

3 Circular / Semi-Circular Plug parts for the 2005 Kia Optima come from 3 brands — APEX, FEL-PRO and VICTOR REINZ.

This group includes APEX ACP203, FEL-PRO CP75013 and VICTOR REINZ 711349400.

This table covers the connecting rods between each piston and the crankshaft. Read more

3 Connecting Rod parts are listed for the 2005 Kia Optima, from TOPLINE and HYUNDAI.

This group includes HYUNDAI 2351038001, TOPLINE CRHY6 and TOPLINE CRHY7.

This table covers the bearings in the connecting-rod big ends. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly. Read more

6 Connecting Rod Bearing parts are listed for the 2005 Kia Optima, from ENGINETECH, ITM ENGINE COMPONENTS and TOPLINE.

This group includes ENGINETECH BB1827, ENGINETECH BB1507 and ITM ENGINE COMPONENTS 4B1215 and the remaining parts above.

This table covers lower / conversion gasket sets for oil-pan and related joints. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration. Read more

11 Conversion / Lower Gasket Set parts are listed for the 2005 Kia Optima, from APEX, ENGINETECH, FEL-PRO and 4 other brands. APEX ACS2043 carries the "Popular" badge.

This table covers the main bearings that support the crankshaft in the block. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly. Read more

10 Crankshaft Main Bearing parts for the 2005 Kia Optima come from 4 brands — TOPLINE, ENGINETECH, ITM ENGINE COMPONENTS and 1 other brand. The "Popular" part is ENGINETECH BC1524.

This table covers the sleeves used to restore a grooved crankshaft seal surface. Read more

5 Crankshaft Repair Sleeve parts for the 2005 Kia Optima come from 4 brands — WJB / INMOTION PARTS, BCA, NATIONAL and 1 other brand.

Part numbers include BCA NS99145, NATIONAL 99145 and TIMKEN KWK99145, among others listed above.

This table covers the front and rear seals that keep oil in at the crankshaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

41 Crankshaft Seal parts for the 2005 Kia Optima come from 14 brands — VICTOR REINZ, AJUSA, FEL-PRO and 11 other brands. The "Popular" part is AJUSA 15052700. A list this long means Crankshaft Seal applications vary by configuration — the notes carry the qualifiers.

This table covers the bolts that clamp the cylinder head to the block. Read more

12 Cylinder Head Bolt parts are listed for the 2005 Kia Optima, from ENGINETECH, FEL-PRO, AJUSA and 5 other brands. ENGINETECH HB177 carries the "Popular" badge.

This table covers the head gaskets that seal the block to the cylinder head. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

18 Cylinder Head Gasket parts are listed for the 2005 Kia Optima, from APEX, FEL-PRO, MAHLE / CLEVITE and 5 other brands. APEX AHG242L carries the "Popular" badge.

This table covers multi-piece gasket sets for a cylinder-head job. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration. Read more

19 Cylinder Head Gasket Set parts are listed for the 2005 Kia Optima, from FEL-PRO, ENGINETECH, AJUSA and 7 other brands. ENGINETECH HY27HSC carries the "Popular" badge.

This table covers the Cylinder Head Spacer shims. Read more

SBI supplies the 3 Cylinder Head Spacer Shim parts for the 2005 Kia Optima.

This group includes SBI 2302149, SBI 2302191L and SBI 2302191R.

This table covers the block heaters that warm the coolant or oil in cold weather. Read more

2 Engine Block Heater parts for the 2005 Kia Optima come from KAT'S HEATERS.

Part numbers include KAT'S HEATERS 11411 and KAT'S HEATERS 11607.

This table covers full gasket kits covering the joints opened in an engine rebuild. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration. Read more

8 Engine Kit Gasket Set parts are listed for the 2005 Kia Optima, from APEX, ENGINETECH, TOPLINE and 2 other brands.

Part numbers include AJUSA 50214200, APEX AFS2043 and APEX AFS2079, among others listed above.

This table covers the Engine rebuild kits. Read more

ENGINETECH supplies both parts for the 2005 Kia Optima.

This group includes ENGINETECH RCHY24P and ENGINETECH RCHY27AP.

This table covers the exhaust valves that let combustion gas out of the cylinder. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one. Read more

14 Exhaust Valve parts for the 2005 Kia Optima come from 8 brands — ITM ENGINE COMPONENTS, ENGINETECH, QUALCAST and 5 other brands. The "Popular" part is ENGINETECH EM2431.

This table covers the Expansion plugs. Typical signs include a leak at the drain or glow-plug hole, or a plug that has rounded off. Replace the crush washer and torque to the spec in the notes. Read more

2 Expansion Plug parts are listed for the 2005 Kia Optima, from ENGINETECH and TOPLINE.

Part numbers include ENGINETECH PK914 and TOPLINE EPSMI4.

This table covers the crankshaft pulleys / harmonic balancers at the front of the engine. Read more

11 Harmonic Balancer parts are listed for the 2005 Kia Optima, from SKP, ULTRA-POWER, ATP and 4 other brands. SKP SK594268 carries the "Popular" badge.

Economy: 2 parts, from SKP. A representative part number is SKP SK594268.

The Standard Replacement section: 8 options from ULTRA-POWER, ATP, PIONEER and 2 other brands. ULTRA-POWER 594504 is listed in this group.

1 ungrouped part is not assigned to a grade, with the same engine-level match.

This table covers the gaskets between the intake manifold and the cylinder head. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

13 Intake Manifold Gasket parts are listed for the 2005 Kia Optima, from APEX, FEL-PRO, AJUSA and 5 other brands. APEX AMS2430 carries the "Popular" badge.

This table covers the gaskets that seal the Intake Plenum. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

7 Intake Plenum Gasket parts for the 2005 Kia Optima come from 6 brands — VICTOR REINZ, FEL-PRO, MAHLE / CLEVITE and 3 other brands. The "Popular" part is FEL-PRO MS96591.

Part numbers include FEL-PRO MS96591, MAHLE / CLEVITE MS19307 and AJUSA 00855400, among others listed above.

This table covers the intake valves that let air (and fuel, on port-injected engines) into the cylinder. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one. Read more

16 Intake Valve parts for the 2005 Kia Optima come from 8 brands — ITM ENGINE COMPONENTS, ENGINETECH, MELLING and 5 other brands. The "Popular" part is ENGINETECH IM2400.