2019 Chevrolet Blazer Engine Parts

This table covers the chains that drive the balance shafts. Read more

6 Balance Shaft Chain parts are listed for the 2019 Chevrolet Blazer, from CLOYES, MELLING, GM GENUINE and 1 other brand. CLOYES C919 carries the "Popular" badge.

The Chain Only section lists 4 options from CLOYES, MELLING, GM GENUINE and 1 other brand — grouped under the catalog's "Chain Only" designation — the notes column spells out what sets them apart. CLOYES C919 is listed in this group.

In the Kit grade, CLOYES and MELLING supply 2 parts: grouped under the catalog's "Kit" designation — the notes column spells out what sets them apart. A representative part number is CLOYES 90919S.

Listed part numbers: CLOYES C919, MELLING 1094 and GM GENUINE 12626983, plus the other parts above.

This table covers the guides that keep the balance-shaft chain on its path. Read more

5 Balance Shaft Chain Guide parts are listed for the 2019 Chevrolet Blazer, from MELLING, CLOYES, FVP and 2 other brands. MELLING BG5150 carries the "Popular" badge.

Part numbers include MELLING BG5150 and CLOYES 95953, among others listed above.

This table covers the Balance Shaft Chain 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

5 Balance Shaft Chain Tensioner parts for the 2019 Chevrolet Blazer come from 5 brands — GM GENUINE, CLOYES, FVP and 2 other brands. The "Popular" part is GM GENUINE 12626984.

This group includes GM GENUINE 12626984 and CLOYES 95952 and the remaining parts above.

This table covers the Balance Shaft sprockets. Read more

5 Balance Shaft Sprocket parts are listed for the 2019 Chevrolet Blazer, from MELLING, CLOYES, FVP and 2 other brands. MELLING S1370 carries the "Popular" badge.

Part numbers include MELLING S1370 and CLOYES S1101, among others listed above.

This table covers the camshafts that open the valves. Read more

GM GENUINE supplies the 7 Camshaft parts for the 2019 Chevrolet Blazer.

Part numbers include GM GENUINE 12638651, GM GENUINE 28290131 and GM GENUINE 12677826, among others listed above.

This table covers the Camshaft Alignment tools. This is a service tool, not a wear part — match the application in the notes. Read more

This group shows a single part: LISLE 37530.

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

2 Camshaft Seal parts for the 2019 Chevrolet Blazer come from GM GENUINE.

This group includes GM GENUINE 12574477 and GM GENUINE 12636316.

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

This group shows a single part: GM GENUINE 11588547.

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

GM GENUINE supplies both parts for the 2019 Chevrolet Blazer.

This group includes GM GENUINE 12674412 and GM GENUINE 12647161.

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

4 Connecting Rod Bearing parts are listed for the 2019 Chevrolet Blazer, from GM GENUINE and MAHLE / CLEVITE.

Part numbers include GM GENUINE 12668645, GM GENUINE 12672032 and GM GENUINE 19368257, among others listed above.

This table covers the Connecting Rod bolts. Read more

2 Connecting Rod Bolt parts for the 2019 Chevrolet Blazer come from GM GENUINE.

Part numbers include GM GENUINE 11548927 and GM GENUINE 11519680.

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

AJUSA supplies both parts for the 2019 Chevrolet Blazer.

Listed part numbers: AJUSA 54229400 and AJUSA 54323100.

This table covers the crankshafts that turn piston motion into rotation. Read more

One part is listed for the 2019 Chevrolet Blazer — GM GENUINE 12699162.

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

3 Crankshaft Main Bearing parts for the 2019 Chevrolet Blazer come from GM GENUINE.

This group includes GM GENUINE 12668646, GM GENUINE 12744917 and GM GENUINE 19368254.

This table covers the Crankshaft Main Bearing Cap bolts. Read more

5 Crankshaft Main Bearing Cap Bolt parts are listed for the 2019 Chevrolet Blazer, from GM GENUINE and ELRING. GM GENUINE 11588713 carries the "Popular" badge. 2 parts fit every engine; the other 3 are engine-specific.

This group includes GM GENUINE 11588713, ELRING B75610 and GM GENUINE 11589001 and the remaining parts above.

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

6 Crankshaft Repair Sleeve parts for the 2019 Chevrolet Blazer come from 3 brands — BCA, NATIONAL and WJB / INMOTION PARTS. 1 part fits every engine; the other 5 are engine-specific.

Part numbers include BCA NS99166, BCA NS99353 and NATIONAL 99353, 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

18 Crankshaft Seal parts for the 2019 Chevrolet Blazer come from 12 brands — GM GENUINE, NATIONAL, WJB / INMOTION PARTS and 9 other brands. The "Popular" part is FEL-PRO BS40739.

This table covers the Cylinder Head Alignment Dowel pins. Read more

One part is listed for the 2019 Chevrolet Blazer — GM GENUINE 12570326.

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

6 Cylinder Head Bolt parts are listed for the 2019 Chevrolet Blazer, from GM GENUINE, AJUSA and FEL-PRO.

Listed part numbers: AJUSA 81065100, AJUSA 81082800 and FEL-PRO ES73486, plus the other parts above.

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

14 Cylinder Head Gasket parts are listed for the 2019 Chevrolet Blazer, from GM GENUINE, AJUSA, FEL-PRO and 2 other brands. GM GENUINE 12647574 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

8 Cylinder Head Gasket Set parts are listed for the 2019 Chevrolet Blazer, from AJUSA, ELRING, GM GENUINE and 1 other brand.

This group includes AJUSA 52606000, AJUSA 52639700 and ELRING 048980 and the remaining parts above.

This table covers the Engine Block drain plugs. Read more

GM GENUINE supplies both parts for the 2019 Chevrolet Blazer.

This group includes GM GENUINE 11602951 and GM GENUINE 11546667.

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

5 Engine Block Heater parts for the 2019 Chevrolet Blazer come from 2 brands — KAT'S HEATERS and GM GENUINE.

Part numbers include GM GENUINE 12586687, GM GENUINE 12587380 and KAT'S HEATERS 28510, among others listed above.

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

AJUSA supplies both parts for the 2019 Chevrolet Blazer.

This group includes AJUSA 50548800 and AJUSA 50568500.

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

8 Exhaust Valve parts for the 2019 Chevrolet Blazer come from 4 brands — GM GENUINE, MELLING, QUALCAST and 1 other brand.

Part numbers include GM GENUINE 12627156, GM GENUINE 12647868 and MELLING V3442, among others listed above.

This table covers the followers that drive a mechanical fuel pump off the camshaft. Read more

2 Fuel Pump Camshaft Follower parts are listed for the 2019 Chevrolet Blazer, from GM GENUINE and WELLS. All of them fit every engine offered in the 2019 Blazer.

Listed part numbers: GM GENUINE 12718357 and WELLS 5T5013.

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

6 Harmonic Balancer parts are listed for the 2019 Chevrolet Blazer, from GM GENUINE, SKP, ATP and 2 other brands. GM GENUINE 25202078 carries the "Popular" badge.

In the Economy grade, SKP supplies 1 part: the catalog's value-priced group. A representative part number is SKP SK594713.

The Standard Replacement section lists 4 options from GM GENUINE, ATP, DORMAN and 1 other brand — built to original-equipment specification. GM GENUINE 25202078 is listed in this group.

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

This group includes GM GENUINE 25202078, SKP SK594713 and ATP 102479 and the remaining parts above.

This table covers the Harmonic Balancer bolts. Read more

2 Harmonic Balancer Bolt parts for the 2019 Chevrolet Blazer come from GM GENUINE.

This group includes GM GENUINE 12557840 and GM GENUINE 11546516.

This table covers the Intake insulators. Read more

One part is listed for the 2019 Chevrolet Blazer — GM GENUINE 12711487.

This table covers the Intake manifolds. Typical signs include an exhaust tick, a vacuum leak, or a gasket that has burned through. Replace the gaskets and hardware; a warped flange will leak with a new gasket alone. Read more

3 Intake Manifold parts for the 2019 Chevrolet Blazer come from 2 brands — GM GENUINE and VAICO.

This group includes GM GENUINE 12646130, GM GENUINE 12674037 and VAICO V510602.

This table covers the Intake Manifold bolts. Read more

GM GENUINE supplies the 3 Intake Manifold Bolt parts for the 2019 Chevrolet Blazer.

Listed part numbers: GM GENUINE 11588352, GM GENUINE 11547321 and GM GENUINE 11547030.

This table covers the Intake Manifold covers. Read more

One part is listed for the 2019 Chevrolet Blazer — GM GENUINE 12680066.

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

9 Intake Manifold Gasket parts are listed for the 2019 Chevrolet Blazer, from GM GENUINE, FEL-PRO, MAHLE / CLEVITE and 3 other brands. GM GENUINE 12648665 carries the "Popular" badge.

This group includes GM GENUINE 12648665, AJUSA 13268400 and APEX AMS13660 and the remaining parts 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

7 Intake Valve parts for the 2019 Chevrolet Blazer come from 4 brands — GM GENUINE, MELLING, QUALCAST and 1 other brand.

Part numbers include GM GENUINE 12662527, GM GENUINE 12647867 and MELLING V3441, among others listed above.

This table covers the mounts that hold the engine to the chassis. Typical signs include a clunk on takeoff, a vibration at idle, or a separated rubber insert. Support the powertrain before unbolting a mount, and torque the fasteners in the notes. Read more

10 Motor Mount parts for the 2019 Chevrolet Blazer come from 5 brands — GM GENUINE, ANCHOR, DEA / MARMON RIDE CONTROL and 2 other brands. The "Popular" part is GM GENUINE 84624770.

This table covers the Motor Mount bolts. Read more

GM GENUINE supplies both parts for the 2019 Chevrolet Blazer. All of them fit every engine offered in the 2019 Blazer.

Listed part numbers: GM GENUINE 11547918 and GM GENUINE 11588741.

This table covers the Motor Mount Bracket bolts. Read more

One part is listed for the 2019 Chevrolet Blazer — GM GENUINE 11589279.

This table covers the Motor Mount kits. Read more

3 Motor Mount Kit parts for the 2019 Chevrolet Blazer come from ANCHOR.

Part numbers include ANCHOR 300513, ANCHOR 300504 and ANCHOR 300505.

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

40 Oil parts for the 2019 Chevrolet Blazer come from 6 brands — LIQUI MOLY, MOBIL, VALVOLINE and 3 other brands. The "Popular" part is ACDELCO 109302. Full Synthetic and High Mileage (>75,000 Miles) are all represented, and Full Synthetic alone accounts for 36 parts.

This table covers the heat exchangers that cool engine oil. Typical signs include oil at the cooler fittings, or coolant that looks like a milkshake. Pressure-test both circuits after a cooler swap — a leak here mixes oil and coolant. Read more

This group shows a single part: GM GENUINE 12662732.

This table covers the seals at the Oil Cooler Adapter. 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

This group shows a single part: GM GENUINE 12733672.

This table covers the gaskets that seal the Oil Cooler. 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 2019 Chevrolet Blazer — ELRING 836300.

This table covers the Oil Cooler 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

This group shows a single part: GM GENUINE 12662673.

This table covers the seals at the Oil Cooler. 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

One part is listed for the 2019 Chevrolet Blazer — GM GENUINE 12733672.

This table covers the Oil Dipstick tubes. Read more

4 Oil Dipstick / Tube parts for the 2019 Chevrolet Blazer come from 2 brands — GM GENUINE and DORMAN.

This group includes DORMAN 918828, GM GENUINE 12654077 and GM GENUINE 12666871 and the remaining parts above.

This table covers the seals at the Oil Dipstick / Tube. 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 Oil Dipstick / Tube Seal parts are listed for the 2019 Chevrolet Blazer, from ELRING, FEL-PRO and GM GENUINE. 2 parts fit every engine; the other 1 is engine-specific.

Part numbers include ELRING 584210, FEL-PRO 73889 and GM GENUINE 24504031.

This table covers the drain plugs in the oil pan. Read more

4 Oil Drain Plug parts for the 2019 Chevrolet Blazer come from 3 brands — DORMAN, ENGINETECH and GM GENUINE. 3 parts fit every engine; the other 1 is engine-specific.

Listed part numbers: DORMAN 090948CD, DORMAN 090948 and ENGINETECH DP8031, plus the other parts above.