2026 GMC Yukon Drivetrain Parts

This table covers the actuators that engage four-wheel drive at the transfer case or axle. 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

One part is listed for the 2026 GMC Yukon — GM GENUINE 85073905.

This table covers the 4WD Actuator Clutch sleeves. Read more

This group shows a single part: GM GENUINE 85120721.

This table covers the 4WD Actuator housings. Read more

This group shows a single part: GM GENUINE 84242534.

This table covers the Axle / Differential assemblies. Read more

GM GENUINE supplies the 5 Axle / Differential Assembly parts for the 2026 GMC Yukon. GM GENUINE 85707712 carries the "Popular" badge.

Listed part numbers: GM GENUINE 85707712, GM GENUINE 85524484 and GM GENUINE 85524486, plus the other parts above.

This table covers the Axle housings. Read more

This group shows a single part: GM GENUINE 85070827.

This table covers the seals at the Axle Intermediate 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

GM GENUINE supplies both parts for the 2026 GMC Yukon.

Listed part numbers: GM GENUINE 23371177 and GM GENUINE 84983738.

This table covers the Axle shafts. Read more

GM GENUINE supplies the 6 Axle Shaft parts for the 2026 GMC Yukon. GM GENUINE 87821660 carries the "Popular" badge.

Listed part numbers: GM GENUINE 87821660, GM GENUINE 84761276 and GM GENUINE 84881451, plus the other parts above.

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

One part is listed for the 2026 GMC Yukon — GM GENUINE 84428298.

This table covers the Axle Shaft Lock / Snap rings. Read more

GM GENUINE supplies the 3 Axle Shaft Lock / Snap Ring parts for the 2026 GMC Yukon.

Listed part numbers: GM GENUINE 11603361, GM GENUINE 84428312 and GM GENUINE 84428317.

This table covers the Axle Shaft 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

One part is listed for the 2026 GMC Yukon — GM GENUINE FD102.

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

3 Axle Shaft Seal parts for the 2026 GMC Yukon come from GM GENUINE.

This group includes GM GENUINE 84649193, GM GENUINE 84428310 and GM GENUINE 84649194.

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

This group shows a single part: GM GENUINE 26063647.

This table covers the complete CV axle shafts from differential (or hub) to wheel. Typical signs include a click in tight turns, grease flung around the wheel well, or a vibration that builds with speed. A torn boot caught early is a boot kit; caught late it is the whole axle. Torque the axle nut to the method in the notes. Read more

2 CV Axle parts for the 2026 GMC Yukon come from GM GENUINE.

Listed part numbers: GM GENUINE 87863488 and GM GENUINE 84761277.

This table covers the constant-velocity joints at each end of a drive axle. Read more

This group shows a single part: GM GENUINE 87842369.

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

3 CV Joint Boot parts for the 2026 GMC Yukon come from GM GENUINE.

This group includes GM GENUINE 84849629, GM GENUINE 87842370 and GM GENUINE 87863492.

This table covers the bands that clamp a CV boot to the joint. Read more

GM GENUINE supplies the 5 CV Joint Boot Band parts for the 2026 GMC Yukon.

Part numbers include GM GENUINE 11603288, GM GENUINE 84167071 and GM GENUINE 84846844, among others listed above.

This table covers the CV Joint Lock rings. Read more

GM GENUINE supplies both parts for the 2026 GMC Yukon.

Part numbers include GM GENUINE 23369006 and GM GENUINE 84983780.

This table covers the Differential Bearing retainers. Read more

This group shows a single part: GM GENUINE 84881472.

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

This group shows a single part: GM GENUINE 85644584.

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

2 Differential Carrier Bearing / Race parts for the 2026 GMC Yukon come from GM GENUINE.

Listed part numbers: GM GENUINE 85722139 and GM GENUINE 84766413.

This table covers the Differential Carrier bolts. Read more

GM GENUINE supplies the 4 Differential Carrier Bolt parts for the 2026 GMC Yukon.

This group includes GM GENUINE 11561300, GM GENUINE 11602523 and GM GENUINE 11548870 and the remaining parts above.

This table covers the Differential Carrier 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

4 Differential Carrier Bushing parts for the 2026 GMC Yukon come from GM GENUINE.

Listed part numbers: GM GENUINE 84214010, GM GENUINE 84214009 and GM GENUINE 85644582, plus the other parts above.

This table covers the Differential Carrier shims. Read more

GM GENUINE supplies the 6 Differential Carrier Shim parts for the 2026 GMC Yukon. GM GENUINE 22835276 carries the "Popular" badge.

Part numbers include GM GENUINE 22835276, GM GENUINE 22835268 and GM GENUINE 84428332, among others listed above.

This table covers the Differential control modules. Read more

GM GENUINE supplies both parts for the 2026 GMC Yukon.

Listed part numbers: GM GENUINE 86586531 and GM GENUINE 86396173.

This table covers the Differential Cover bolts. Read more

5 Differential Cover Bolt parts for the 2026 GMC Yukon come from GM GENUINE. The "Popular" part is GM GENUINE 11602538.

This group includes GM GENUINE 11602538, GM GENUINE 11603344 and GM GENUINE 11603343 and the remaining parts above.

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

2 Differential Cover Gasket parts for the 2026 GMC Yukon come from 2 brands — DORMAN and GM GENUINE.

Part numbers include DORMAN 926110 and GM GENUINE 84428297.

This table covers the Differential Fill drain plugs. Read more

2 Differential Fill / Drain Plug parts for the 2026 GMC Yukon come from GM GENUINE.

Part numbers include GM GENUINE 55573646 and GM GENUINE 84479772.

This table covers the Differential Lock motors. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor. Read more

This group shows a single part: GM GENUINE 85014370.

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

This group shows a single part: GM GENUINE 88983789.

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

GM GENUINE supplies the 7 Differential Pinion Bearing / Race parts for the 2026 GMC Yukon. GM GENUINE 84446305 carries the "Popular" badge.

Listed part numbers: GM GENUINE 84446305, GM GENUINE S1395 and GM GENUINE 85722137, plus the other parts above.

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

GM GENUINE supplies the 6 Differential Pinion Bearing Baffle parts for the 2026 GMC Yukon. GM GENUINE 22943114 carries the "Popular" badge.

Listed part numbers: GM GENUINE 22943114, GM GENUINE 12479162 and GM GENUINE 84766409, plus the other parts above.

This table covers the Differential Pinion nuts. Read more

This group shows a single part: GM GENUINE 09783762.

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

3 Differential Pinion Seal parts for the 2026 GMC Yukon come from GM GENUINE.

Listed part numbers: GM GENUINE 23243853, GM GENUINE 84428304 and GM GENUINE 84881448.

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

One part is listed for the 2026 GMC Yukon — GM GENUINE 11546644.

This table covers the Differential Pinion shims. Read more

6 Differential Pinion Shim parts for the 2026 GMC Yukon come from GM GENUINE. The "Popular" part is GM GENUINE 23114042.

Part numbers include GM GENUINE 23114042, GM GENUINE 23114043 and GM GENUINE 23114044, among others listed above.

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

2 Differential Ring and Pinion parts for the 2026 GMC Yukon come from GM GENUINE.

Part numbers include GM GENUINE 84881479 and GM GENUINE 84766422.

This table covers the Differential Ring Gear bolts. Read more

2 Differential Ring Gear Bolt parts for the 2026 GMC Yukon come from GM GENUINE.

This group includes GM GENUINE 11546991 and GM GENUINE 84881474.

This table covers the Differential Side Bearing spacers. Read more

One part is listed for the 2026 GMC Yukon — GM GENUINE 84428331.

This table covers the Differential Spider gears. Read more

2 Differential Spider Gear parts for the 2026 GMC Yukon come from GM GENUINE.

Listed part numbers: GM GENUINE 84446312 and GM GENUINE 84881475.

This table covers the Differential washers. Read more

This group shows a single part: GM GENUINE 14039026.

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

3 Drive Shaft parts are listed for the 2026 GMC Yukon, from GM GENUINE and DORMAN.

This group includes DORMAN 938384, GM GENUINE 85816901 and GM GENUINE 87821415.

This table covers the Drive Shaft bolts. Read more

This group shows a single part: GM GENUINE 11602575.

This table covers the Drive Shaft End yokes. Read more

2 Drive Shaft End Yoke parts for the 2026 GMC Yukon come from GM GENUINE.

Listed part numbers: GM GENUINE 84881462 and GM GENUINE 85524483.

This table covers the Drive Shaft retainers. Read more

One part is listed for the 2026 GMC Yukon — GM GENUINE 11603594.

This table covers the Drive Shaft Slip yokes. Read more

GM GENUINE supplies both parts for the 2026 GMC Yukon.

Listed part numbers: GM GENUINE 84389645 and GM GENUINE 84389646.

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

This group shows a single part: GM GENUINE 24233898.

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

5 Gear Oil parts for the 2026 GMC Yukon come from 2 brands — VALVOLINE and ACDELCO. The "Popular" part is VALVOLINE VV975.

The SAE 75W-85 section lists 1 option from ACDELCO — grouped under the catalog's "SAE 75W-85" designation — the notes column spells out what sets them apart. ACDELCO 104091 is listed in this group.

The SAE 75W-90 section lists 4 options from VALVOLINE — grouped under the catalog's "SAE 75W-90" designation — the notes column spells out what sets them apart. VALVOLINE VV975 is listed in this group.

Part numbers include VALVOLINE VV975, ACDELCO 104091 and VALVOLINE 889785, among others listed above.

This table covers the Transfer Case bolts. Read more

One part is listed for the 2026 GMC Yukon — GM GENUINE 19169068.

This table covers the Transfer Case Clutch Pressure 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 Transfer Case Clutch Pressure Plate parts for the 2026 GMC Yukon come from GM GENUINE.

This group includes GM GENUINE 19133077 and GM GENUINE 84184296.

This table covers the Transfer Case Clutch Pressure Plate Return 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

One part is listed for the 2026 GMC Yukon — GM GENUINE 19133074.

This table covers the chains that drive the transfer case. Read more

One part is listed for the 2026 GMC Yukon — GM GENUINE 19133129.

This table covers the Transfer Case Driven Sprocket Retaining rings. Read more

This group shows a single part: GM GENUINE 19133113.

This table covers the fluids specified for the transfer case. Typical signs include discolored fluid, a burnt smell, or a level that keeps dropping. Use only the specification in the notes — the tables group grades because they are not interchangeable. Read more

10 Transfer Case Fluid parts for the 2026 GMC Yukon come from 3 brands — VALVOLINE, ACDELCO and MOBIL. The "Popular" part is ACDELCO 109394.

The Dexron section lists 5 options from ACDELCO, VALVOLINE and MOBIL — grouped under the catalog's "Dexron" designation — the notes column spells out what sets them apart. ACDELCO 109394 is listed in this group.

The Multi-Vehicle section lists 4 options from VALVOLINE and MOBIL — grouped under the catalog's "Multi-Vehicle" designation — the notes column spells out what sets them apart. MOBIL 126505 is listed in this group.

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

This table covers the gaskets that seal the Transfer Case. 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 2026 GMC Yukon — GM GENUINE 86816628.

This table covers the Transfer Case High / Low clutches. Typical signs include slip at highway speed, chatter on takeoff, or a pedal that stays low. Resurface or replace the flywheel with the clutch — a heat-checked flywheel wastes the new disc. Read more

This group shows a single part: GM GENUINE 19299093.

This table covers the Transfer Case housings. Read more

One part is listed for the 2026 GMC Yukon — GM GENUINE 19133109.

This table covers the Transfer Case Housing extensions. Read more

This group shows a single part: GM GENUINE 85788874.

This table covers the Transfer Case 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

One part is listed for the 2026 GMC Yukon — GM GENUINE 19133165.

This table covers the Transfer Case Input shafts. Read more

This group shows a single part: GM GENUINE 84516158.

This table covers the Transfer Case Input 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 19133006.

This table covers the Transfer Case Input Shaft 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 19132983.

This table covers the seals at the Transfer Case Input 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 Transfer Case Input Shaft Seal parts are listed for the 2026 GMC Yukon, from ELRING and GM GENUINE.

This group includes ELRING B16870 and GM GENUINE 19299084.

This table covers the Transfer Case motors. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor. Read more

One part is listed for the 2026 GMC Yukon — GM GENUINE 85785948.

This table covers the Transfer Case Oil drain plugs. Read more

This group shows a single part: GM GENUINE 11601929.

This table covers the Transfer Case Oil 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

This group shows a single part: GM GENUINE 84888175.

This table covers the Transfer Case Output shafts. Read more

One part is listed for the 2026 GMC Yukon — GM GENUINE 19133059.

This table covers the Transfer Case 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

GM GENUINE supplies both parts for the 2026 GMC Yukon.

Part numbers include GM GENUINE 19133127 and GM GENUINE 19133136.

This table covers the Transfer Case 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

One part is listed for the 2026 GMC Yukon — GM GENUINE 15665313.

This table covers the seals at the Transfer Case 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 Transfer Case Output Shaft Seal parts for the 2026 GMC Yukon come from GM GENUINE.

This group includes GM GENUINE 84124168 and GM GENUINE 24233898.

This table covers the planetary carriers in the transfer case. Read more

This group shows a single part: GM GENUINE 19299090.

This table covers the Transfer Case Range position sensors. Typical signs include a stall, a no-start, or a code for cam or crank correlation. Check the connector and the reluctor gap before replacing the sensor. Read more

This group shows a single part: GM GENUINE 84368196.

This table covers the Transfer Case Range Shift hubs. Read more

This group shows a single part: GM GENUINE 19133075.

This table covers the forks that move a transfer-case shift collar. Read more

This group shows a single part: GM GENUINE 19133031.

This table covers the Transfer Case Shift Fork inserts. Read more

One part is listed for the 2026 GMC Yukon — GM GENUINE 19133033.

This table covers the Transfer Case sprockets. Read more

GM GENUINE supplies both parts for the 2026 GMC Yukon.

This group includes GM GENUINE 19133134 and GM GENUINE 85580981.

This table covers the Transfer Case Thrust washers. Read more

This group shows a single part: GM GENUINE 19300746.

This table covers the vents on the transfer case. Read more

One part is listed for the 2026 GMC Yukon — GM GENUINE 19133166.

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

5 Universal Joint parts for the 2026 GMC Yukon come from 3 brands — GMB, GM GENUINE and MOOG. The "Popular" part is GMB 2100178.

In the Heavy Duty grade, GMB supplies 1 part: rated for severe service. A representative part number is GMB 2150178.

In the Standard Replacement grade, GMB, GM GENUINE and MOOG supply 4 parts: built to original-equipment specification. A representative part number is GMB 2100178.

This group includes GMB 2100178, GMB 2150178 and GM GENUINE 84807275 and the remaining parts above.

This table covers the C-clips that retain a U-joint bearing cup. Read more

This group shows a single part: GM GENUINE 23471512.