2021 Chevrolet Express 4500 Drivetrain Parts

This table covers the Axle / Differential assemblies. Read more

2 Axle / Differential Assembly parts for the 2021 Chevrolet Express 4500 come from GM GENUINE.

Part numbers include GM GENUINE 84447463 and GM GENUINE 84596523.

This table covers the Axle bolts. Read more

One part is listed for the 2021 Chevrolet Express 4500 — GM GENUINE 20920619.

This table covers the Axle bumpers. Read more

One part is listed for the 2021 Chevrolet Express 4500 — GM GENUINE 06263975.

This table covers the Axle Hub keys. Read more

This group shows a single part: GM GENUINE 22760462.

This table covers the Axle shafts. Read more

2 Axle Shaft parts for the 2021 Chevrolet Express 4500 come from 2 brands — AAM and GM GENUINE.

Part numbers include AAM 40193426 and GM GENUINE 86547051.

This table covers the Axle 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 S606.

This table covers the gaskets that seal the Axle Shaft Flange. 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 Axle Shaft Flange Gasket parts for the 2021 Chevrolet Express 4500 come from 2 brands — FEL-PRO and GM GENUINE.

This group includes FEL-PRO 55350 and GM GENUINE 12471641.

This table covers the Axle Shaft retainers and clips. Read more

One part is listed for the 2021 Chevrolet Express 4500 — GM GENUINE 14012746.

This table covers the seals where an axle shaft exits the housing. 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 291316.

This table covers the Axle Vent 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

One part is listed for the 2021 Chevrolet Express 4500 — GM GENUINE 26063647.

This table covers the boots that keep grease in a CV joint. Typical signs include a split boot, grease flung around the joint, or a click once grit is inside. A boot caught early is a kit. Once the joint has clicked, the joint itself is usually worn. Read more

One part is listed for the 2021 Chevrolet Express 4500 — GM GENUINE 15898093.

This table covers the Differential Bearing Adjuster Nut Lock bolts. Read more

This group shows a single part: GM GENUINE 11603333.

This table covers the Differential Bearing retainers. Read more

One part is listed for the 2021 Chevrolet Express 4500 — GM GENUINE 26061404.

This table covers the carriers that hold the differential gears in the axle. Read more

4 Differential Carrier parts are listed for the 2021 Chevrolet Express 4500, from GM GENUINE and AAM.

This group includes AAM 26067357, GM GENUINE 22943116 and GM GENUINE 22943118 and the remaining parts above.

This table covers the bearings and races that support the differential carrier. Read more

GM GENUINE supplies the 3 Differential Carrier Bearing / Race parts for the 2021 Chevrolet Express 4500.

Part numbers include GM GENUINE 84678054, GM GENUINE S1420 and GM GENUINE 387AS382A.

This table covers the Differential Carrier shims. Read more

4 Differential Carrier Shim parts for the 2021 Chevrolet Express 4500 come from GM GENUINE.

Listed part numbers: GM GENUINE 15599629, GM GENUINE 22835276 and GM GENUINE 15599633, plus the other parts above.

This table covers the clutch packs in a limited-slip or locking differential. Read more

GM GENUINE supplies the 4 Differential Clutch Pack parts for the 2021 Chevrolet Express 4500.

Listed part numbers: GM GENUINE 23404635, GM GENUINE 12479063 and GM GENUINE 12479064, plus the other parts above.

This table covers the Differential Clutch Pack clips. Read more

GM GENUINE supplies the 3 Differential Clutch Pack Clip parts for the 2021 Chevrolet Express 4500.

This group includes GM GENUINE 15599623, GM GENUINE 00462787 and GM GENUINE 12471533.

This table covers the Differential covers. Read more

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

Part numbers include GM GENUINE 22951487 and GM GENUINE 19210710.

This table covers the Differential Cover bolts. Read more

GM GENUINE supplies the 3 Differential Cover Bolt parts for the 2021 Chevrolet Express 4500.

Listed part numbers: GM GENUINE 11546347, GM GENUINE 12471307 and GM GENUINE 11546348.

This table covers the gaskets that seal the Differential Cover. 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 Express 4500.

Listed part numbers: GM GENUINE 26067159 and GM GENUINE 85720902.

This table covers the Differential Cross pins. Read more

2 Differential Cross Pin parts for the 2021 Chevrolet Express 4500 come from GM GENUINE.

This group includes GM GENUINE 22950866 and GM GENUINE 20768565.

This table covers the Differential Fill drain plugs. Read more

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

This group includes GM GENUINE 55573646 and GM GENUINE 24045309.

This table covers the Differential Lock actuators. Typical signs include a door or range that will not move, or a click with no motion. Confirm the command signal before replacing the actuator — a failed module looks the same. Read more

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

Listed part numbers: GM GENUINE 14022135 and GM GENUINE 12471530.

This table covers the Differential Lock 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 12471412.

This table covers the thrust blocks in a locking differential. Read more

GM GENUINE supplies the 5 Differential Lock Thrust Block parts for the 2021 Chevrolet Express 4500.

Listed part numbers: GM GENUINE 12479067, GM GENUINE 12479069 and GM GENUINE 12479070, plus the other parts above.

This table covers the bearings and races on the differential pinion. Read more

5 Differential Pinion Bearing / Race parts for the 2021 Chevrolet Express 4500 come from 2 brands — GM GENUINE and TIMKEN. The "Popular" part is GM GENUINE S1420.

Part numbers include GM GENUINE S1420, GM GENUINE S1396 and GM GENUINE S1279, among others listed above.

This table covers the baffles that control oil at the pinion bearings. Read more

2 Differential Pinion Bearing Baffle parts for the 2021 Chevrolet Express 4500 come from GM GENUINE.

Listed part numbers: GM GENUINE 22943114 and GM GENUINE 26008741.

This table covers the Differential Pinion nuts. Read more

GM GENUINE supplies the 4 Differential Pinion Nut parts for the 2021 Chevrolet Express 4500.

Part numbers include GM GENUINE 09783762, GM GENUINE 84489150 and GM GENUINE 88891763, among others listed above.

This table covers the Differential Pinion Pilot 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 1581TS.

This table covers the seals at the differential pinion yoke. 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

4 Differential Pinion Seal parts are listed for the 2021 Chevrolet Express 4500, from GM GENUINE, MOTIVE GEAR and TIMKEN.

Listed part numbers: GM GENUINE 86285709 and GM GENUINE 26064030, plus the other parts above.

This table covers the Differential Pinion Shaft Lock bolts. Read more

This group shows a single part: GM GENUINE 11546644.

This table covers the Differential Pinion shims. Read more

GM GENUINE supplies the 5 Differential Pinion Shim parts for the 2021 Chevrolet Express 4500.

Listed part numbers: GM GENUINE 00334363, GM GENUINE 00334364 and GM GENUINE 00334367, plus the other parts above.

This table covers kits that group the bearings, races and seals for a differential rebuild. Read more

This group shows a single part: AAM 74067009.

This table covers the ring-and-pinion gear sets that set the axle ratio. Read more

GM GENUINE supplies the 4 Differential Ring and Pinion parts for the 2021 Chevrolet Express 4500.

Listed part numbers: GM GENUINE 19210931, GM GENUINE 84489155 and GM GENUINE 19210704, plus the other parts above.

This table covers the Differential Ring Gear bolts. Read more

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

Listed part numbers: GM GENUINE 11546991 and GM GENUINE 12479386.

This table covers the Differential Spider gears. Read more

GM GENUINE supplies the 5 Differential Spider Gear parts for the 2021 Chevrolet Express 4500. GM GENUINE 12471687 carries the "Popular" badge.

This group includes GM GENUINE 12471687, GM GENUINE 12479074 and GM GENUINE 12479065 and the remaining parts above.

This table covers the Differential washers. Read more

GM GENUINE supplies the 4 Differential Washer parts for the 2021 Chevrolet Express 4500.

Listed part numbers: GM GENUINE 14039026, GM GENUINE 03977345 and GM GENUINE 03977346, plus the other parts above.

This table covers the driveshafts that carry torque from the transmission or transfer case. Read more

3 Drive Shaft parts for the 2021 Chevrolet Express 4500 come from GM GENUINE.

This group includes GM GENUINE 84675726, GM GENUINE 84675725 and GM GENUINE 84675731.

This table covers the Drive Shaft bolts. Read more

One part is listed for the 2021 Chevrolet Express 4500 — GM GENUINE 11548472.

This table covers the Drive Shaft Center Support 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 84448547.

This table covers the brackets that mount the Drive Shaft Center Support Bearing. 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

2 Drive Shaft Center Support Bearing Bracket parts for the 2021 Chevrolet Express 4500 come from GM GENUINE.

Part numbers include GM GENUINE 15294768 and GM GENUINE 15295278.

This table covers the Drive Shaft End yokes. Read more

3 Drive Shaft End Yoke parts are listed for the 2021 Chevrolet Express 4500, from GM GENUINE and USA STANDARD GEAR.

This group includes GM GENUINE 85550093, GM GENUINE 85550100 and USA STANDARD GEAR USA41204.

This table covers the Drive Shaft retainers. Read more

2 Drive Shaft Retainer parts for the 2021 Chevrolet Express 4500 come from GM GENUINE.

Part numbers include GM GENUINE 23107857 and GM GENUINE 23170499.

This table covers the Drive Shaft Slip yokes. Read more

4 Drive Shaft Slip Yoke parts for the 2021 Chevrolet Express 4500 come from GM GENUINE.

This group includes GM GENUINE 23251192, GM GENUINE 19256892 and GM GENUINE 19256893 and the remaining parts above.

This table covers the seals at the Drive Shaft Slip Yoke. 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 24226707.

This table covers the gear oils specified for the axle or transfer case. Typical signs include a low-oil lamp, knocking, or oil that has gone thin before the next interval. Match the viscosity and spec in the notes, not just the weight on the bottle. Read more

ACDELCO supplies both parts for the 2021 Chevrolet Express 4500.

In the SAE 75W-85 grade, ACDELCO supplies 1 part: grouped under the catalog's "SAE 75W-85" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO 104091.

In the SAE 75W-90 grade, ACDELCO supplies 1 part: grouped under the catalog's "SAE 75W-90" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO 104016.

This group includes ACDELCO 104091 and ACDELCO 104016.

This table covers the Ring Gear spacers. Read more

One part is listed for the 2021 Chevrolet Express 4500 — GM GENUINE 03663696.

This table covers the U-joints in the driveshaft. Read more

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

This group includes GM GENUINE 19121436 and GM GENUINE 88964413.

This table covers the Universal Joint Strap kits. Read more

DORMAN supplies both parts for the 2021 Chevrolet Express 4500.

This group includes DORMAN 15021 and DORMAN 13862.