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The available engine options for the Sonoma are:
- 4-151 (2.5L, VIN "E")
- 4-151 (2.5L) VIN "E"
- 4-151 (2.5L) VIN "A"
- 4-151 (2.5L, VIN "A")
- 4-134 (2.2L, VIN "4")
- 2.2L (VIN 4, 4-134)
- 4.3L (VIN W, 8th digit)
- 2.2L (VIN 4 & 5, 8th digit)
- 2.2L (VIN 5, 8th digit)
- 2.2L (VIN H or 4, 8th digit)
- 4.3L (VIN X, 8th digit)
- (4.3L, VIN X, 8th digit)
- 6-262 (4.3L, VIN "Z") 4x2
- 6-262 (4.3L) TBI (VIN "Z") 4x2
- 6-262 (4.3L, VIN "Z") 4x4
- 6-262 (4.3L) TBI (VIN "Z") 4x4
- 4-121 (2.0L, VIN "Y")
- 6-262 (4.3L) CPI (VIN "W") 4x4
- 6-262 (4.3L) CPI (VIN "W") 4x2
- 6-262 (4.3L) CPI (VIN "W") 4x4 top mtd spark plug wires on dist
- 6-262 (4.3L) CPI (VIN "W") 4x2 top mtd spark plug wires on dist
- 6-173 (2.8L, VIN "B") rubber Rr main seal
- 6-173 (2.8L, VIN "B") 4x2
- 6-173 (2.8L, VIN "B") 4x4
- 6-173 (2.8L, VIN "R") 4x2
- 6-173 (2.8L, VIN "R") 4x4
- 6-173 (2.8L, VIN "B") RTV (silicone) Rr main
- 6-173 (2.8L, VIN "R")
- 6-262 (4.3L) VIN "W"
- 6-262 (4.3L) VIN "X"
- 4.3L (6-262) VIN W
- 4.3L (6-262) VIN X
- 6-262 (4.3L) CPI (VIN "W") 4x2 side mtd spark plug wires on dist
- 6-262 (4.3L) CPI (VIN "W") 4x4 side mtd spark plug wires on dist
- 4-136 (2.2L, diesel, VIN "S")
- 4-119 (1.9L, VIN "A")

