2021 Chevrolet Express 4500 Automatic Transmission Parts

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

3 Automatic Transmission Control Unit (TCU) parts for the 2021 Chevrolet Express 4500 come from 2 brands — GM GENUINE and DORMAN.

This group includes DORMAN SP609006, GM GENUINE 24275873 and GM GENUINE 19540893.

This table covers the bushings in this assembly. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles. Read more

DURA-BOND supplies the 5 Bushing parts for the 2021 Chevrolet Express 4500. DURA-BOND JT2181 carries the "Popular" badge.

Part numbers include DURA-BOND JT2181, DURA-BOND JT4261 and DURA-BOND JT4601, among others listed above.

This table covers the Bushing kits. Read more

DURA-BOND supplies the 4 Bushing Kit parts for the 2021 Chevrolet Express 4500.

This group includes DURA-BOND TK19, DURA-BOND TK19B and DURA-BOND TK19D and the remaining parts above.

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

One part is listed for the 2021 Chevrolet Express 4500 — GM GENUINE 24290675.

This table covers the Case bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles. Read more

One part is listed for the 2021 Chevrolet Express 4500 — DURA-BOND JT131.

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

2 Case Vent parts for the 2021 Chevrolet Express 4500 come from GM GENUINE.

Listed part numbers: GM GENUINE 15743069 and GM GENUINE 24231684.

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

2 Clutch Apply Plate parts for the 2021 Chevrolet Express 4500 come from GM GENUINE.

Part numbers include GM GENUINE 24230482 and GM GENUINE 24226735.

This table covers the Clutch housings. Read more

GM GENUINE supplies the 3 Clutch Housing parts for the 2021 Chevrolet Express 4500.

This group includes GM GENUINE 24262679, GM GENUINE 24238827 and GM GENUINE 24298744.

This table covers the Clutch Housing Thrust 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 4 Clutch Housing Thrust Bearing parts for the 2021 Chevrolet Express 4500.

Listed part numbers: GM GENUINE 24233732, GM GENUINE 24285660 and GM GENUINE 24237209, plus the other parts above.

This table covers the Clutch hubs. Read more

GM GENUINE supplies the 3 Clutch Hub parts for the 2021 Chevrolet Express 4500.

Part numbers include GM GENUINE 24286217, GM GENUINE 24230480 and GM GENUINE 24226723.

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

5 Clutch Pack Piston parts for the 2021 Chevrolet Express 4500 come from GM GENUINE. The "Popular" part is GM GENUINE 24232416.

Part numbers include GM GENUINE 24232416, GM GENUINE 24224169 and GM GENUINE 24224172, among others listed 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

2 Clutch Pack Piston Dam / Seal parts for the 2021 Chevrolet Express 4500 come from GM GENUINE.

Listed part numbers: GM GENUINE 24224708 and GM GENUINE 24232417.

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

19 Clutch Plate parts for the 2021 Chevrolet Express 4500 come from GM GENUINE. The "Popular" part is GM GENUINE 24258082.

In the Backing Plate grade, GM GENUINE supplies 4 parts: grouped under the catalog's "Backing Plate" designation — the notes column spells out what sets them apart. A representative part number is GM GENUINE 24224171.

The Friction section lists 9 options from GM GENUINE — grouped under the catalog's "Friction" designation — the notes column spells out what sets them apart. GM GENUINE 24258082 is listed in this group.

In the Wave Plate grade, GM GENUINE supplies 5 parts: grouped under the catalog's "Wave Plate" designation — the notes column spells out what sets them apart. A representative part number is GM GENUINE 24224647.

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

This table covers the Clutch Plate and Housing assemblies. Read more

This group shows a single part: GM GENUINE 24259851.

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

One part is listed for the 2021 Chevrolet Express 4500 — GM GENUINE 24248007.

This table covers the Clutch Plate Retaining rings. Read more

GM GENUINE supplies the 14 Clutch Plate Retaining Ring parts for the 2021 Chevrolet Express 4500. GM GENUINE 24233406 carries the "Popular" badge.

This table covers the Clutch Seal rings. Read more

One part is listed for the 2021 Chevrolet Express 4500 — GM GENUINE 24053198.

This table covers the Clutch springs. 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

GM GENUINE supplies the 5 Clutch Spring parts for the 2021 Chevrolet Express 4500. GM GENUINE 24224714 carries the "Popular" badge.

This group includes GM GENUINE 24224714, GM GENUINE 24224732 and GM GENUINE 24224725 and the remaining parts above.

This table covers the related components grouped with this assembly. Read more

SONNAX supplies both parts for the 2021 Chevrolet Express 4500.

This group includes SONNAX 76742 and SONNAX 12474030K.

This table covers the detent levers that hold a shifter in gear. Read more

One part is listed for the 2021 Chevrolet Express 4500 — GM GENUINE 24234562.

This table covers the Extension housings. Read more

One part is listed for the 2021 Chevrolet Express 4500 — GM GENUINE 24226703.

This table covers the Extension Housing bolts. Read more

This group shows a single part: GM GENUINE 11546404.

This table covers the Extension Housing bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles. Read more

One part is listed for the 2021 Chevrolet Express 4500 — DURA-BOND JT352.

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

This group shows a single part: GM GENUINE 24224675.

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

2 Filter parts are listed for the 2021 Chevrolet Express 4500, from VARIOUS MFR and GM GENUINE.

In the Economy grade, VARIOUS MFR supplies 1 part: the catalog's value-priced group. A representative part number is VARIOUS MFR PT99791.

The Standard Replacement section lists 1 option from GM GENUINE — built to original-equipment specification. GM GENUINE 24258269 is listed in this group.

This group includes VARIOUS MFR PT99791 and GM GENUINE 24258269.

This table covers the seals at the Filter. 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 24225347.

This table covers the Flexplate Mounting bolts. Read more

This group shows a single part: GM GENUINE 11569956.

This table covers the Fluid Cooler Control valves. 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

This group shows a single part: GM GENUINE 85584365.

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

GM GENUINE supplies both parts for the 2021 Chevrolet Express 4500.

Listed part numbers: GM GENUINE 85801418 and GM GENUINE 86531996.

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

This group shows a single part: GM GENUINE 84240291.

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 for the 2021 Chevrolet Express 4500 come from 2 brands — GM GENUINE and SKP.

Part numbers include GM GENUINE 85628205, GM GENUINE 24237658 and SKP SK66219.

This table covers the Fluid Cooler Line clips. Read more

3 Fluid Cooler Line Clip parts are listed for the 2021 Chevrolet Express 4500, from GM GENUINE and DORMAN.

Part numbers include DORMAN 14152, GM GENUINE 22988272 and GM GENUINE 15698443.

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

2 Fluid Pan parts for the 2021 Chevrolet Express 4500 come from 2 brands — DORMAN and GM GENUINE.

Part numbers include DORMAN 265973 and GM GENUINE 24297102.

This table covers the Fluid Pan drain plugs. Read more

3 Fluid Pan Drain Plug parts for the 2021 Chevrolet Express 4500 come from 2 brands — GM GENUINE and DORMAN.

Part numbers include DORMAN 265003, GM GENUINE 24234212 and GM GENUINE 24267298.

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 are listed for the 2021 Chevrolet Express 4500, from FEL-PRO and GM GENUINE.

This group includes FEL-PRO TOS18787 and GM GENUINE 24226850.

This table covers the Fluid Pan magnets. Read more

This group shows a single part: GM GENUINE 29535617.

This table covers the Fluid Pump bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles. Read more

DURA-BOND supplies both parts for the 2021 Chevrolet Express 4500.

Part numbers include DURA-BOND JT2061 and DURA-BOND JT2061TG.

This table covers the Fluid Pump Cover bolts. Read more

One part is listed for the 2021 Chevrolet Express 4500 — GM GENUINE 24227061.

This table covers the Fluid Pump rotors. Typical signs include shudder under braking, or a lip at the outer edge. Do not put new pads on a rotor that is below minimum thickness. Read more

GM GENUINE supplies the 3 Fluid Pump Rotor parts for the 2021 Chevrolet Express 4500.

Listed part numbers: GM GENUINE 24054657, GM GENUINE 24054658 and GM GENUINE 24054659.

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

This group shows a single part: GM GENUINE 24224577.

This table covers the slides inside the transmission fluid pump. Read more

3 Fluid Pump Slide parts for the 2021 Chevrolet Express 4500 come from GM GENUINE.

This group includes GM GENUINE 24224131, GM GENUINE 24224132 and GM GENUINE 24222668.

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

This group shows a single part: ULTRA-POWER 66219.

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

One part is listed for the 2021 Chevrolet Express 4500 — GM GENUINE 24239520.

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

This group shows a single part: GM GENUINE 24235861.

This table covers the Manual Shift shafts. Read more

One part is listed for the 2021 Chevrolet Express 4500 — GM GENUINE 24225445.

This table covers the manual valves in the transmission valve body. 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 2021 Chevrolet Express 4500 — GM GENUINE 24224770.

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

5 O-Rings & Seals parts for the 2021 Chevrolet Express 4500 come from GM GENUINE. The "Popular" part is GM GENUINE 24285570.

This group includes GM GENUINE 24285570, GM GENUINE 24236928 and GM GENUINE 24236927 and the remaining parts above.

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

This group shows a single part: GM GENUINE 24253983.

This table covers the Output Carrier Internal gears. Read more

This group shows a single part: GM GENUINE 24264194.

This table covers the Output 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: GM GENUINE 24224668.

This table covers the Output Shaft bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles. Read more

This group shows a single part: DURA-BOND JT4981.

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

One part is listed for the 2021 Chevrolet Express 4500 — GM GENUINE 24238076.

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

One part is listed for the 2021 Chevrolet Express 4500 — GM GENUINE 24280047.

This table covers the Plug adapters. Read more

This group shows a single part: GM GENUINE 8654382.

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

This group shows a single part: LUK GATK6L90.

This table covers the Retaining rings. Read more

2 Retaining Ring parts for the 2021 Chevrolet Express 4500 come from GM GENUINE.

Listed part numbers: GM GENUINE 24218963 and GM GENUINE 24230477.

This table covers the sealing rings inside this assembly. Read more

One part is listed for the 2021 Chevrolet Express 4500 — GM GENUINE 24054655.

This table covers the Shift cables. Typical signs include a stretched or frayed cable, or a control that no longer reaches the end of its travel. Route the new cable through the same clips. A kinked cable binds and fails early. Read more

2 Shift Cable parts for the 2021 Chevrolet Express 4500 come from GM GENUINE.

Part numbers include GM GENUINE 84961003 and GM GENUINE 86508372.

This table covers the brackets that mount the Shift Cable. Typical signs include a cracked mount, a rattle, or a bracket that no longer holds alignment. Confirm position in the notes. Many brackets look alike and bolt to different corners. Read more

This group shows a single part: GM GENUINE 84526297.

This table covers the Shift Interlock solenoids. Typical signs include a harsh or missing shift, or a code for this solenoid circuit. Check resistance and the connector before dropping the pan for a solenoid. Read more

One part is listed for the 2021 Chevrolet Express 4500 — GM GENUINE 26094827.

This table covers the Shift Linkage bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles. Read more

This group shows a single part: DORMAN 14104.

This table covers the Snap rings. Read more

One part is listed for the 2021 Chevrolet Express 4500 — ACDELCO 24237851.

This table covers the one-way sprag clutches in the transmission. Read more

2 Sprag parts for the 2021 Chevrolet Express 4500 come from GM GENUINE.

Part numbers include GM GENUINE 24248958 and GM GENUINE 24050202.

This table covers the Sun gears. Read more

3 Sun Gear parts for the 2021 Chevrolet Express 4500 come from GM GENUINE.

Part numbers include GM GENUINE 24224404, GM GENUINE 24224177 and GM GENUINE 24226738.

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

3 Sun Gear Bearing parts for the 2021 Chevrolet Express 4500 come from GM GENUINE.

Listed part numbers: GM GENUINE 24224405, GM GENUINE 24224178 and GM GENUINE 24224176.

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

One part is listed for the 2021 Chevrolet Express 4500 — GM GENUINE 24284077.

This table covers the hardware around the torque converter and bellhousing. Read more

This group shows a single part: GM GENUINE 24224574.

This table covers the Torque Converter bolts. Read more

This group shows a single part: GM GENUINE 11588468.

This table covers the Torque Converter Housing 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 24205899.

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

This group shows a single part: GM GENUINE 24237531.

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

5 Transmission Fluid parts are listed for the 2021 Chevrolet Express 4500, from PENTOSIN, MOBIL and ACDELCO. ACDELCO 109394 carries the "Popular" badge.

The ATF 64 section lists 2 options from PENTOSIN — grouped under the catalog's "ATF 64" designation — the notes column spells out what sets them apart. PENTOSIN 1058113 is listed in this group.

In the Dexron grade, ACDELCO and MOBIL supply 2 parts: grouped under the catalog's "Dexron" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO 109394.

In the Multi-Vehicle grade, MOBIL supplies 1 part: grouped under the catalog's "Multi-Vehicle" designation — the notes column spells out what sets them apart. A representative part number is MOBIL 126505.

Part numbers include ACDELCO 109394, PENTOSIN 1058113 and PENTOSIN 1058215, among others listed above.

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

LUBEGARD supplies the 6 Transmission Fluid Additive parts for the 2021 Chevrolet Express 4500. LUBEGARD 19610 carries the "Popular" badge.

Part numbers include LUBEGARD 19610, LUBEGARD 60902 and LUBEGARD 19689, among others listed 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

2 Transmission Mount parts for the 2021 Chevrolet Express 4500 come from 2 brands — ANCHOR and GM GENUINE.

Part numbers include ANCHOR 3098 and GM GENUINE 85521460.

This table covers the Turbine Shaft Fluid Seal rings. Read more

One part is listed for the 2021 Chevrolet Express 4500 — GM GENUINE 24224655.

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

One part is listed for the 2021 Chevrolet Express 4500 — GM GENUINE 24219390.

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

GM GENUINE supplies both parts for the 2021 Chevrolet Express 4500.

Listed part numbers: GM GENUINE 24240953 and GM GENUINE 24251431.

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

This group shows a single part: GM GENUINE 96020431.

This table covers the Valve Body Separator 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

This group shows a single part: GM GENUINE 24272467.