2007 Cadillac BLS Engine Parts

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

3 Camshaft Seal parts are listed for the 2007 Cadillac BLS, from SCHAEFFLER and SKF.

Part numbers include SCHAEFFLER SS2412, SCHAEFFLER SS2447 and SKF 13709.

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

This group shows a single part: AJUSA 54279200.

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

2 Crankshaft Repair Sleeve parts are listed for the 2007 Cadillac BLS, from SCHAEFFLER and SKF.

Listed part numbers: SCHAEFFLER SS4833 and SKF 99353.

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

5 Crankshaft Seal parts are listed for the 2007 Cadillac BLS, from AJUSA, SKF, ACDELCO and 1 other brand. SKF 35836 carries the "Popular" badge.

This group includes SKF 35836, ACDELCO 710237 and AJUSA 15083600 and the remaining parts above.

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

This group shows a single part: AJUSA 81074300.

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

This group shows a single part: AJUSA 10146600.

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

This group shows a single part: AJUSA 52215800.

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

This group shows a single part: AJUSA 50566800.

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

One part is listed for the 2007 Cadillac BLS — QUALCAST 102010S.

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

This group shows a single part: AJUSA 13189100.

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

One part is listed for the 2007 Cadillac BLS — QUALCAST 101997.

This table covers the engine oils listed by grade and specification for this engine. Typical signs include a low-oil lamp, knocking after a long interval, or oil that has gone thin and black well before the next service. Match the viscosity and spec in the notes (and on the filler cap). The tables group grades — they are not interchangeable. Read more

VALVOLINE supplies the 6 Oil parts for the 2007 Cadillac BLS. VALVOLINE VV955 carries the "Popular" badge.

In the Full Synthetic grade, VALVOLINE supplies 3 parts: full-synthetic oils. A representative part number is VALVOLINE VV955.

The High Mileage (>75,000 Miles) section lists 3 options from VALVOLINE — oils grouped for high-mileage engines. VALVOLINE VV179 is listed in this group.

This group includes VALVOLINE VV955, VALVOLINE 881164 and VALVOLINE 881629 and the remaining parts above.

This table covers the crush washers and gaskets under the oil drain plug. 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

This group shows a single part: AJUSA 01148400.

This table covers the caps on the oil filler neck. Read more

One part is listed for the 2007 Cadillac BLS — MOTORAD MO99.

This table covers the oil filters that screw onto this engine's filter mount. Typical signs include low oil pressure after a service, or a filter that will not spin off because the old gasket stayed on the block. Lube the new gasket and tighten to the spec on the box; a double-gasket install dumps the sump on the first drive. Read more

12 Oil Filter parts are listed for the 2007 Cadillac BLS, from FVP, VARIOUS MFR, WIX and 6 other brands. PRO-TEC PXL57082 carries the "Popular" badge.

In the Economy grade, PRO-TEC, FVP and VARIOUS MFR supply 3 parts: the catalog's value-priced group. A representative part number is PRO-TEC PXL57082.

In the High Performance / Heavy Duty grade, WIX and MOBIL supply 2 parts: grouped under the catalog's "High Performance / Heavy Duty" designation — the notes column spells out what sets them apart. A representative part number is WIX 57082XP.

The Standard Replacement section lists 7 options from WIX, ACDELCO, FEL-PRO and 4 other brands — built to original-equipment specification. WIX 57082 is listed in this group.

This table covers the rings that seal each piston to the cylinder wall. Read more

2 Piston Ring parts for the 2007 Cadillac BLS come from HASTINGS MANUFACTURING.

Listed part numbers: HASTINGS MANUFACTURING 2N4189S and HASTINGS MANUFACTURING 2N4189.

This table covers the seals at the Timing Cover. 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

2 Timing Cover Seal parts are listed for the 2007 Cadillac BLS, from AJUSA and SKF.

Listed part numbers: AJUSA 01147700 and SKF 16544.

This table covers the gaskets that seal the Turbocharger. 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

This group shows a single part: AJUSA JTC12166.

This table covers the Turbocharger Oil lines. Typical signs include a wet fitting, a rusted pipe, or a pressure loss in this circuit. Flare or thread the new line the way the notes specify; a kinked replacement will fail early. Read more

One part is listed for the 2007 Cadillac BLS — AJUSA OP10184.

This table covers the gaskets that seal the valve cover 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

One part is listed for the 2007 Cadillac BLS — AJUSA 56047900.

This table covers the pressed-in bronze and cast-iron guides that align valve stems. Typical signs include oil smoke on startup, a guide that has gone oval, or a valve that no longer seats quietly. Guides are a machine-shop fit. Confirm stem diameter in the notes before ordering. Read more

One part is listed for the 2007 Cadillac BLS — QUALCAST 303029.

This table covers the lifters / tappets that transfer cam motion to the valves. Read more

2 Valve Lifter parts are listed for the 2007 Cadillac BLS, from AJUSA and QUALCAST.

Listed part numbers: AJUSA 85010900 and QUALCAST 367082.

This table covers the Valve seats. Read more

This group shows a single part: QUALCAST 21125050.

This table covers the springs that close each intake and exhaust valve. Typical signs include a sagging corner, a broken coil, or a clunk from the spring pocket. Replace springs in axle pairs and inspect the seats. Read more

This group shows a single part: QUALCAST 3204060.

This table covers the keepers that lock each valve-spring retainer to the stem. Read more

This group shows a single part: QUALCAST 345021.

This table covers the seals on each valve stem that control oil into the guides. 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

3 Valve Stem Seal parts are listed for the 2007 Cadillac BLS, from AJUSA and QUALCAST.

This group includes AJUSA 12020000, AJUSA 57039000 and QUALCAST 38350045.