The 1992 Isuzu Pickup tire size depends on trim: the LS, 4WD takes P205/75R14; the LS, RWD, Automatic takes P205/75R14; the LS, RWD, Standard, MUA5C takes P205/75R14; the LS, RWD, Standard, MSG5C takes P205/75R14; the S, 2D Pickup Extra Cab, Automatic takes P195/75R14; the S, 2D Pickup Extra Cab, Standard, MSG5C takes P195/75R14; the S, 2D Pickup Extra Cab, Standard, MUA5C takes P195/75R14; the S, 2D Pickup, 2.3 L, MUA5C takes P195/75R14; the S, 2D Pickup, 2.3 L, MSG5C takes P195/75R14; the S, 2D Pickup, 2.6 E, 4WD takes P225/75R15; the S, 2D Pickup, 2.6 E, RWD, Automatic takes P195/75R14; the S, 2D Pickup, 2.6 E, RWD, Standard, MSG5C takes P195/75R14; the S, 2D Pickup, 2.6 E, RWD, Standard, MUA5C takes P195/75R14; the S, 2D Pickup, 3.1 Z takes P225/75R15, per the factory service manual.
Factory-Spec Tire Size
Varies by trim
LS, 4WD: P205/75R14
LS, RWD, Automatic: P205/75R14
LS, RWD, Standard, MUA5C: P205/75R14
LS, RWD, Standard, MSG5C: P205/75R14
S, 2D Pickup Extra Cab, Automatic: P195/75R14
S, 2D Pickup Extra Cab, Standard, MSG5C: P195/75R14
S, 2D Pickup Extra Cab, Standard, MUA5C: P195/75R14
S, 2D Pickup, 2.3 L, MUA5C: P195/75R14
S, 2D Pickup, 2.3 L, MSG5C: P195/75R14
S, 2D Pickup, 2.6 E, 4WD: P225/75R15
S, 2D Pickup, 2.6 E, RWD, Automatic: P195/75R14
S, 2D Pickup, 2.6 E, RWD, Standard, MSG5C: P195/75R14
S, 2D Pickup, 2.6 E, RWD, Standard, MUA5C: P195/75R14
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