2021 Chevrolet Suburban Automatic Transmission Parts

This table covers the control units that command automatic-transmission shifts. Read more

2 Automatic Transmission Control Unit (TCU) parts are listed for the 2021 Chevrolet Suburban, from ACDELCO and GM GENUINE.

Part numbers include ACDELCO 24043414 and GM GENUINE 24070740.

This table covers the transmission or transfer-case housings. Read more

3 Case parts for the 2021 Chevrolet Suburban come from 2 brands — ACDELCO and GM GENUINE.

This group includes ACDELCO 24294152, ACDELCO 24294175 and GM GENUINE 24043506.

This table covers the Case covers. Read more

GM GENUINE supplies the 3 Case Cover parts for the 2021 Chevrolet Suburban.

This group includes GM GENUINE 24294268, GM GENUINE 24056939 and GM GENUINE 24062001.

This table covers the Case 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 11548770.

This table covers the vents on a transmission or axle housing. Read more

GM GENUINE supplies both parts for the 2021 Chevrolet Suburban.

This group includes GM GENUINE 24261261 and GM GENUINE 84881460.

This table covers the Clutch Apply plates. Typical signs include warpage, cracks, or a plate that no longer locates the assembly. Confirm which plate the notes describe — backing plates, clutch plates and strike plates are different parts. Read more

GM GENUINE supplies both parts for the 2021 Chevrolet Suburban.

This group includes GM GENUINE 24270148 and GM GENUINE 24270200.

This table covers the Clutch Apply rings. Read more

One part is listed for the 2021 Chevrolet Suburban — GM GENUINE 24270338.

This table covers the Clutch housings. Read more

This group shows a single part: GM GENUINE 24049870.

This table covers the Clutch hubs. Read more

This group shows a single part: GM GENUINE 24292057.

This table covers the pistons that apply a clutch pack. Read more

7 Clutch Pack Piston parts are listed for the 2021 Chevrolet Suburban, from GM GENUINE and PA CARGO. GM GENUINE 24270344 carries the "Popular" badge.

This group includes GM GENUINE 24270344, GM GENUINE 24280877 and GM GENUINE 24043098 and the remaining parts above.

This table covers the seals at the Clutch Pack Piston Dam. 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

GM GENUINE supplies the 6 Clutch Pack Piston Dam / Seal parts for the 2021 Chevrolet Suburban. GM GENUINE 24280521 carries the "Popular" badge.

This group includes GM GENUINE 24280521, GM GENUINE 24043097 and GM GENUINE 24270301 and the remaining parts above.

This table covers the Clutch plates. Typical signs include warpage, cracks, or a plate that no longer locates the assembly. Confirm which plate the notes describe — backing plates, clutch plates and strike plates are different parts. Read more

GM GENUINE supplies the 8 Clutch Plate parts for the 2021 Chevrolet Suburban. GM GENUINE 24280378 carries the "Popular" badge.

The Backing Plate section lists 1 option from GM GENUINE — grouped under the catalog's "Backing Plate" designation — the notes column spells out what sets them apart. GM GENUINE 24270326 is listed in this group.

In the Friction grade, GM GENUINE supplies 6 parts: grouped under the catalog's "Friction" designation — the notes column spells out what sets them apart. A representative part number is GM GENUINE 24280378.

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

This group includes GM GENUINE 24280378, GM GENUINE 24270326 and GM GENUINE 24273217 and the remaining parts above.

This table covers the clutch-plate packs inside the transmission or transfer case. Read more

7 Clutch Plate Pack parts for the 2021 Chevrolet Suburban come from 3 brands — RAYBESTOS POWERTRAIN, GM GENUINE and PA CARGO. The "Popular" part is GM GENUINE 24294354.

The Friction Plate & Steel Plate Pack section lists 1 option from RAYBESTOS POWERTRAIN — grouped under the catalog's "Friction Plate & Steel Plate Pack" designation — the notes column spells out what sets them apart. RAYBESTOS POWERTRAIN RTK10R85 is listed in this group.

In the Friction Plate Pack grade, RAYBESTOS POWERTRAIN and GM GENUINE supply 3 parts: grouped under the catalog's "Friction Plate Pack" designation — the notes column spells out what sets them apart. A representative part number is GM GENUINE 24294354.

The Steel Plate Pack section lists 1 option from RAYBESTOS POWERTRAIN — grouped under the catalog's "Steel Plate Pack" designation — the notes column spells out what sets them apart. RAYBESTOS POWERTRAIN STMGM31 is listed in this group.

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

Part numbers include GM GENUINE 24294354, RAYBESTOS POWERTRAIN RTK10R85 and RAYBESTOS POWERTRAIN RCPBP48, among others listed above.

This table covers the Clutch Plate Retaining rings. Read more

5 Clutch Plate Retaining Ring parts for the 2021 Chevrolet Suburban come from GM GENUINE.

Listed part numbers: GM GENUINE 24044304, GM GENUINE 24270210 and GM GENUINE 24270211, plus the other parts above.

This table covers the Drive Sprocket 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

One part is listed for the 2021 Chevrolet Suburban — GM GENUINE 19133111.

This table covers the Extension housings. Read more

2 Extension Housing parts for the 2021 Chevrolet Suburban come from GM GENUINE.

Listed part numbers: GM GENUINE 24291463 and GM GENUINE 24269276.

This table covers the Extension Housing bolts. Read more

One part is listed for the 2021 Chevrolet Suburban — GM GENUINE 11515767.

This table covers the gaskets that seal the Extension Housing. 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

GM GENUINE supplies both parts for the 2021 Chevrolet Suburban.

Part numbers include GM GENUINE 24273850 and GM GENUINE 24271580.

This table covers the replacement filters for this application — the table heading and notes say which circuit. Typical signs include restricted flow — long cranking, weak airflow, or dirty fluid after a short interval. Seat the new filter so it cannot bypass, and use the grade the notes call for. Read more

8 Filter parts for the 2021 Chevrolet Suburban come from 6 brands — VARIOUS MFR, GM GENUINE, ATP and 3 other brands. The "Popular" part is ATP B205.

The Economy section lists 2 options from VARIOUS MFR — the catalog's value-priced group. VARIOUS MFR PT99577 is listed in this group.

In the Standard Replacement grade, GM GENUINE, ATP and RAYBESTOS POWERTRAIN supply 4 parts: built to original-equipment specification. A representative part number is ATP B205.

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

Listed part numbers: ATP B205, VARIOUS MFR PT99577 and VARIOUS MFR PT99577X, plus the other parts above.

This table covers the flexplates that connect the crankshaft to the torque converter. Read more

One part is listed for the 2021 Chevrolet Suburban — GM GENUINE 12698631.

This table covers the Flexplate Mounting bolts. Read more

One part is listed for the 2021 Chevrolet Suburban — GM GENUINE 11569956.

This table covers the heat exchangers that cool transmission fluid. Typical signs include fluid that overheats, a leak at the cooler fittings, or milky fluid that says coolant and ATF have mixed. Flush the lines when you replace a cooler. Cross-contamination is how a small leak becomes a transmission job. Read more

6 Fluid Cooler parts for the 2021 Chevrolet Suburban come from 6 brands — GM GENUINE, TYC, DORMAN and 3 other brands. The "Popular" part is GM GENUINE 85822148.

This group includes GM GENUINE 85822148, TYC 19169 and DORMAN 918479 and the remaining parts above.

This table covers the Fluid Cooler Line hoses. Typical signs include swelling, cracks, a soft spot, or a leak at a clamp. Replace adjacent aged hoses while the system is drained — they share the same heat cycle. Read more

This group shows a single part: GM GENUINE 86584016.

This table covers the harness connectors at the Fluid Cooler Line / Hose. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock. Read more

2 Fluid Cooler Line / Hose Connector parts are listed for the 2021 Chevrolet Suburban, from FOUR SEASONS and HAYDEN.

Part numbers include FOUR SEASONS 53009 and HAYDEN 390.

This table covers the seals at the Fluid Cooler Line / Hose. 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 Fluid Cooler Line / Hose Seal parts are listed for the 2021 Chevrolet Suburban, from GM GENUINE and SKP.

This group includes GM GENUINE 85639955, GM GENUINE 24237658 and SKP SK66219.

This table covers the Fluid Cooler Line clips. Read more

3 Fluid Cooler Line Clip parts for the 2021 Chevrolet Suburban come from 2 brands — GM GENUINE and DORMAN.

Listed part numbers: DORMAN 14152, GM GENUINE 22988272 and GM GENUINE 15698443.

This table covers the pans that hold automatic-transmission fluid. Read more

One part is listed for the 2021 Chevrolet Suburban — GM GENUINE 24043538.

This table covers the gaskets that seal the Fluid Pan. 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

2 Fluid Pan Gasket parts for the 2021 Chevrolet Suburban come from 2 brands — FEL-PRO and GM GENUINE.

Part numbers include FEL-PRO TOS18789 and GM GENUINE 24297886.

This table covers the Fluid Pan magnets. Read more

One part is listed for the 2021 Chevrolet Suburban — GM GENUINE 24274971.

This table covers the Fluid pumps. Typical signs include noise from the pump, no pressure, or fluid that never arrives at the outlet. Prime or fill the pump as the notes require. A dry start is a common way to kill a new unit. Read more

2 Fluid Pump parts for the 2021 Chevrolet Suburban come from GM GENUINE.

Listed part numbers: GM GENUINE 24048561 and GM GENUINE 24071202.

This table covers the gaskets that seal the Fluid Pump. 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 2021 Chevrolet Suburban — GM GENUINE 24047734.

This table covers the seals at the Fluid Pump. 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

GM GENUINE supplies both parts for the 2021 Chevrolet Suburban.

Listed part numbers: GM GENUINE 24290889 and GM GENUINE 24270191.

This table covers the Fluid temperature sensors. Typical signs include hard cold starts, a fan that never comes on, or a gauge that disagrees with the scan tool. A sensor that reads open or shorted is usually the part; an implausible-but-smooth reading can be wiring. Read more

This group shows a single part: GM GENUINE 24271129.

This table covers the gasket kits for this job. Typical signs include the leaks that sent this assembly to the bench. Confirm the kit matches the opening you are sealing; unused leftover pieces often belong to another configuration. Read more

One part is listed for the 2021 Chevrolet Suburban — ULTRA-POWER 66219.

This table covers the input carriers in the planetary gearset. Read more

This group shows a single part: GM GENUINE 24060760.

This table covers the seals at the Manual 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

One part is listed for the 2021 Chevrolet Suburban — GM GENUINE 24288402.

This table covers the Manual Shift shafts. Read more

2 Manual Shift Shaft parts for the 2021 Chevrolet Suburban come from GM GENUINE.

Part numbers include GM GENUINE 24287144 and GM GENUINE 24289398.

This table covers the O-rings and seals at this joint. Read more

GM GENUINE supplies both parts for the 2021 Chevrolet Suburban.

Part numbers include GM GENUINE 24265265 and GM GENUINE 24047736.

This table covers the output carriers in the planetary gearset. Read more

GM GENUINE supplies both parts for the 2021 Chevrolet Suburban.

Listed part numbers: GM GENUINE 24048102 and GM GENUINE 24048117.

This table covers the Output Carrier Internal gears. Read more

One part is listed for the 2021 Chevrolet Suburban — GM GENUINE 24042196.

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

This group shows a single part: GM GENUINE 24265138.

This table covers the seals at the Output 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

2 Output Shaft Seal parts for the 2021 Chevrolet Suburban come from GM GENUINE.

This group includes GM GENUINE 24288846 and GM GENUINE 24265265.

This table covers the parking pawls that lock the transmission in Park. Read more

This group shows a single part: GM GENUINE 24284855.

This table covers the Piston kits. Read more

One part is listed for the 2021 Chevrolet Suburban — PA CARGO K21290099.

This table covers the Plug adapters. Read more

One part is listed for the 2021 Chevrolet Suburban — GM GENUINE 8654382.

This table covers the Reaction Internal gears. Read more

GM GENUINE supplies the 3 Reaction Internal Gear parts for the 2021 Chevrolet Suburban.

This group includes GM GENUINE 24050164, GM GENUINE 24046051 and GM GENUINE 24042202.

This table covers the rebuild kits for this assembly. Read more

PA CARGO supplies both parts for the 2021 Chevrolet Suburban.

In the Banner Kit (Overhaul Kit + Friction Clutch Plates) grade, PA CARGO supplies 1 part: grouped under the catalog's "Banner Kit (Overhaul Kit + Friction Clutch Plates)" designation — the notes column spells out what sets them apart. A representative part number is PA CARGO DK21200GS.

In the Overhaul Kit (Gaskets, Seals, O-Rings & Sealing Rings) grade, PA CARGO supplies 1 part: grouped under the catalog's "Overhaul Kit (Gaskets, Seals, O-Rings & Sealing Rings)" designation — the notes column spells out what sets them apart. A representative part number is PA CARGO K212900G.

This group includes PA CARGO DK21200GS and PA CARGO K212900G.

This table covers the Retaining rings. Read more

GM GENUINE supplies the 5 Retaining Ring parts for the 2021 Chevrolet Suburban.

Part numbers include GM GENUINE 24074958, GM GENUINE 24284249 and GM GENUINE 24284250, among others listed above.

This table covers the Snap rings. Read more

3 Snap Ring parts for the 2021 Chevrolet Suburban come from GM GENUINE.

This group includes GM GENUINE 24046009, GM GENUINE 19133007 and GM GENUINE 19133024.

This table covers the Sun gears. Read more

GM GENUINE supplies the 3 Sun Gear parts for the 2021 Chevrolet Suburban.

This group includes GM GENUINE 24052589, GM GENUINE 24069198 and GM GENUINE 24269180.

This table covers the Sun Gear 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

GM GENUINE supplies the 3 Sun Gear Bearing parts for the 2021 Chevrolet Suburban.

Part numbers include GM GENUINE 24269123, GM GENUINE 24289653 and GM GENUINE 24289654.

This table covers the Sun Gear shafts. Read more

One part is listed for the 2021 Chevrolet Suburban — GM GENUINE 24050268.

This table covers the Torque converters. Typical signs include a sulfur smell, rattling substrate, or an efficiency code. Confirm CARB vs Federal certification in the notes before ordering. Read more

This group shows a single part: GM GENUINE 24049879.

This table covers the Torque Converter bolts. Read more

One part is listed for the 2021 Chevrolet Suburban — GM GENUINE 11588468.

This table covers the seals at the Torque Converter 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

One part is listed for the 2021 Chevrolet Suburban — GM GENUINE 24288257.

This table covers the automatic-transmission fluids specified for this gearbox. Typical signs include harsh or delayed shifts, fluid that smells burnt, or a shudder at light throttle. Use exactly the specification in the notes. Automatic transmissions are unforgiving of the wrong fluid. Read more

8 Transmission Fluid parts for the 2021 Chevrolet Suburban come from 5 brands — VALVOLINE, PENTOSIN, ACDELCO and 2 other brands. The "Popular" part is ACDELCO 104107.

The Dexron section lists 2 options from ACDELCO and VAICO — grouped under the catalog's "Dexron" designation — the notes column spells out what sets them apart. ACDELCO 104107 is listed in this group.

The Multi-Vehicle section lists 2 options from VALVOLINE and LIQUI MOLY — grouped under the catalog's "Multi-Vehicle" designation — the notes column spells out what sets them apart. VALVOLINE 888460 is listed in this group.

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

Part numbers include ACDELCO 104107, VAICO V600016 and VALVOLINE 888460, among others listed above.

This table covers the conditioners and additives used with this transmission fluid. Read more

6 Transmission Fluid Additive parts for the 2021 Chevrolet Suburban come from LUBEGARD. The "Popular" part is LUBEGARD 19610.

Listed part numbers: LUBEGARD 19610, LUBEGARD 60902 and LUBEGARD 19689, plus the other parts above.

This table covers the mounts that hold the transmission 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

5 Transmission Mount parts are listed for the 2021 Chevrolet Suburban, from ANCHOR, GM GENUINE, PIONEER and 1 other brand. ANCHOR 3539 carries the "Popular" badge.

Listed part numbers: ANCHOR 3539, ANCHOR 3278 and GM GENUINE 85154275, plus the other parts above.

This table covers the seals at the Turbine 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

3 Turbine Shaft Seal parts for the 2021 Chevrolet Suburban come from GM GENUINE.

This group includes GM GENUINE 24279896, GM GENUINE 24285613 and GM GENUINE 24285614.

This table covers the valve bodies that route hydraulic pressure inside the transmission. Read more

This group shows a single part: GM GENUINE 19436465.

This table covers the check balls inside the transmission valve body. Read more

One part is listed for the 2021 Chevrolet Suburban — GM GENUINE 96020431.