The Class 5 middle child of Chevrolet's medium-duty trio, the 5500 HD slots between the 4500 HD and 6500 HD with a GVWR up to about 19,500 lb. Like its siblings it launched for 2019 powered by the 6.6L Duramax L5D V8 (350 hp and 700 lb-ft) mated to an Allison automatic, reviving the conventional medium-duty Chevy line that vanished when the Kodiak/TopKick died in 2009.
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Common replacement parts
Real products from the PartsNow catalog. Confirm fitment with Mike before ordering.

3030HNTRX
3030HNTRX - 3030 SPEC LONG SHAFT HNTRX BRAKE CHAMBER

OTR10143
OTR10143 - AUTO SLACK ADJUSTER, 11/2-10DRIVE 5.5,6.5

5-808330
5-808330 - BRAKE KIT FOR 4709DEN SHOES

370036A
370036A - OIL BATH SEAL

348-4195
348-4195 - HUB CAP (SENTINAL LARGE DIAM)

5008414PGBXW
5008414PGBXW - AIR DRYER CARTRIDGE, PURAGUARD

11444
11444 - GLADHAND BRACKET MOUNT

15W40 OIL
15W40 OIL - 15W40 OIL (ROTELLA) GAL JUG
