Engine, gasoline, 8 cylinder, 4.8L, multiport fuel injection, iron block, GM

Years 1999–07 Models 3 Factory citations 12

Also described as Engine, gas, 8 cylinder, 4.8L, multiport fuel injection, iron, GMEngine, 4.8L V8 (Vortec 4800), iron block

Also documented for Chevrolet

Documented applications

Savana — GMT610 (2003–2027)

2003–2005, 2007 Factory-verified

GM factory document — 2003 gmc savana rpo code list, p.1.
GM factory document — 2005 gmc savana rpo code list, p.1.
GM factory document — 2007 gmc savana rpo code list, p.1.

Sierra — GMT800 (1999–2007)

1999–2007 Factory-verified

GM factory document — 1999 gmc gmc c sierra 2wd rpo code list, p.1.
GM factory document — 2007 gmc sierra classic 2wd rpo code list, p.1.

Yukon — GMT800 (2000–2006)

2000–2006 Factory-verified

Wikipedia names the 4.8L V8 for the Yukon; the 2001–2006 lists print the cylinder count as 8 Cechy

GM factory document — 2000 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2001 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2002 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2003 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2004 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2005 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2006 gmc yukon 2wd rpo code list, p.1.

This page aggregates every documented appearance of LR4 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.