E28 ✓ Factory-verified

Buick · Regular Production Option

Handle, assist

Years 1998–04 Models 2 Factory citations 14

Query this via API →

Also documented for CadillacChevroletGMCOldsmobilePontiac

Documented applications

Century — W-body (1997–2005) →

• 1998–2004 ✓ Factory-verified
  ⛭ GM factory document — 1998 buick century rpo code list, p.1.

  ⛭ GM factory document — 1999 buick century rpo code list, p.1.

  ⛭ GM factory document — 2000 buick century rpo code list, p.1.

  ⛭ GM factory document — 2001 buick century rpo code list, p.1.

  ⛭ GM factory document — 2002 buick century rpo code list, p.1.

  ⛭ GM factory document — 2003 buick century rpo code list, p.1.

  ⛭ GM factory document — 2004 buick century rpo code list, p.1.

Regal — W-body (1997–2004) →

• 1998–2004 ✓ Factory-verified
  ⛭ GM factory document — 1998 buick regal rpo code list, p.1.

  ⛭ GM factory document — 1999 buick regal rpo code list, p.1.

  ⛭ GM factory document — 2000 buick regal rpo code list, p.1.

  ⛭ GM factory document — 2001 buick regal rpo code list, p.1.

  ⛭ GM factory document — 2002 buick regal rpo code list, p.1.

  ⛭ GM factory document — 2003 buick regal rpo code list, p.1.

  ⛭ GM factory document — 2004 buick regal rpo code list, p.1.

This page aggregates every documented appearance of E28 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.