Honda general-purpose engines model decode:
Example: GX 270 UT1 – QXE4 – OH:
| Symbol | Modifications |
| GX | Engine series: G – engines with horizontal shaft (old series) GV – engines with vertical shaft (old series) GX – commercial engines with horizontal shaft GXV – commercial engines with vertical shaft iGX – commercial engines with horizontal shaft and self-tuning regulator (STR) GC – engines with horizontal shaft for residential applications GCV – engines with vertical shaft for residential applications GS – engines with horizontal shaft for light commercial and residential applications GSV – engines with vertical shaft for light commercial and residential applications GP – engines with horizontal shaft for light residential applications GD – diesel engines with horizontal shaft |
| 270 | Engine size, displacement in cm3 |
| UT1 |
U – universal engine for Europe, USA, Canada and Australia T1 – engine modification |
| QXE4 |
P.T.O. shaft type: Q – straight shaft, imperial (in) S – straight shaft, metric (mm) W – external thread V – tapered shaft H – 1/6 reduction R – 1/2 reduction + clutch L – 1/2 reduction |
| QXE4 | X – oil alert |
| QXE4 |
E – electric starter M – oil bath air cleaner C – cyclone air cleaner |
| QXE4 |
2 – American specs 4 – European specs |
| OH |
Engine color: OH – red SD – black |
| Engine | Displacement | Power output (max.) | |
| G SERIES | |||
| G20 | 135 cc (8.05 cu.in.) | 3.0 PS | |
| G25 | 59 cc (3.6 cu.in.) | 2.5 HP at 6,000 rpm | |
| G28 | 67 cc (4.09 cu.in.) | 2.8 HP at 6,000 rpm | |
| G30 | 135 cc (8.05 cu.in.) | 4.0 PS | |
| G35 | 144 cc(8.79 cu.in.) | 3.5 HP at 4,000 rpm | |
| G41 | 170 cc (10.37 cu.in.) | 4.5 PS at 4,000 rpm | |
| G42 | 171 cc (10.4 cu.in.) | 4.5 HP at 4,000 rpm | |
| G45 | 240 cc (16.6 cu.in.) | 6.0 PS at 4,000 rpm | |
| G50 | 187 cc (11.4 cu.in.) | 5.0 HP at 4,000 rpm | |
| G65 | 240 cc (14.6 cu.in.) | 6.7 HP at 4,000 rpm | |
| G80 | 296 cc (18.0 cu.in.) | 8.0 PS at 4,000 rpm | |
| G100 | 76 cc (4.6 cu.in.) | 2.0 HP at 4,200 rpm | |
| G100 K1 | 83 cc (5.06 cu.in.) | 2.2 HP at 4,200 rpm | |
| G100 K2 | 98 cc (6.0 cu.in.) | 2.5 HP at 4,200 rpm | |
| G150 K1 | 144 cc (8.8 cu.in.) | 3.8 HP at 3,600 rpm | |
| G200 K1 | 197 cc (12.0 cu.in.) | 5.5 HP at 3,600 rpm | |
| G300 | 272 cc (16.1 cu.in.) | 7.0 HP at 3,600 rpm | |
| G400 | 406 cc (24.8 cu.in.) | 10.0 HP at 3,600 rpm | |
| GC SERIES | |||
| GC135 | 135 cc (8.2 cu.in.) | 4.0 HP at 3,600 rpm | |
| GC160 | 160 cc (9.8 cu.in.) | 5.0 HP at 3,600 rpm | |
| GC190 | 187 cc (11.4 cu.in.) | 6.0 HP at 3,600 rpm | |
| GCV SERIES | |||
| GCV135 | 135 cc (8.2 cu.in.) | 4.5 HP at 3,600 rpm | |
| GCV160 | 160 cc (9.8 cu.in.) | 5.5 HP at 3,600 rpm | |
| GCV190 | 187 cc (11.4 cu.in.) | 5.1 HP at 3,600 rpm | |
| GCV520 | 530 cc (32.3 cu.in.) | 14.0 HP at 3,600 rpm | |
| GCV530 | 530 cc (32.3 cu.in.) | 16.0 HP at 3,600 rpm | |
| GD SERIES | |||
| GD90 | – | 9.0 PS | |
| GD100 | – | 10.0 PS | |
| GD320 | 317 cc (14.4 cu.in.) | 7.0 HP at 3,600 rpm | |
| GD321 | 317 cc (14.4 cu.in.) | 7.0 HP at 3,600 rpm | |
| GD410 | 411 cc (25.2 cu.in.) | 9.0 HP at 3,600 rpm | |
| GD411 | 411 cc (25.2 cu.in.) | 9.0 HP at 3,600 rpm | |
| GD1100 | 1061 cc (25.2 cu.in.) | SH1:18 HP at 2,600 rpm SH2:20 HP at 3,000 rpm SH3:22 HP at 3,600 rpm |
|
| GD1250 | 1235 cc (75.6 cu.in.) |
SH1:20 HP at 2,600 rpm SH2:22 HP at 3,000 rpm SH3:24 HP at 3,600 rpm |
|
| GE SERIES | |||
| GE35 | 34.4 cc (2.11 cu.in.) | 0.91 HP at 4,500 rpm | |
| GP SERIES | |||
| GP160H | 163 cc (9.9 cu.in.) | 4.8 HP at 3,600 rpm | |
| GP200H | 196 cc (12.0 cu.in.) | 5.5 HP at 3,600 rpm | |
| GS SERIES | |||
| GS65 | 240 cc (14.6 cu.in.) | 6.8 PS at 4,000 rpm | |
| GS160 | 160 cc (9.8 cu.in.) | 5.0 HP at 3,600 rpm | |
| GS190A | 187 cc (11.4 cu.in.) | 6.0 HP at 3,600 rpm | |
| GS190 | 187 cc (11.4 cu.in.) | 5.2 HP at 3,600 rpm | |
| GSV SERIES | |||
| GSV190 | 187 cc (11.4 cu.in.) | 6.5 HP at 3,600 rpm | |
| GT SERIES | |||
| GT50 | – | 4.0 PS | |
| GT65 | – | 5.0 PS | |
| GV SERIES | |||
| GV35 | 144 cc (8.8 cu.in.) | 3.5 HP at 4,000 rpm | |
| GV100 | 97 cc (5.9 cu.in.) | 2.6 HP at 4,200 rpm | |
| GV150 | 144 cc (8.8 cu.in.) | 3.5 HP at 3,600 rpm | |
| GV200 | 197 cc (12.0 cu.in.) | 5.0 HP at 3,600 rpm | |
| GV400 | 406 cc (28.1 cu.in.) | 11.0 HP at 3,600 rpm | |
| GX SERIES | |||
| GX22 | 22 cc (1.3 cu.in.) | 1.0 HP at 7,000 rpm | |
| GX25 | 25 cc (1.5 cu.in.) | 1.1 HP at 7,000 rpm | |
| GX31 | 31 cc (1.3 cu.in.) | 1.5 HP at 7,000 rpm | |
| GX35 | 35.8 cc (2.18 cu.in.) | 1.6 HP at 7,000 rpm | |
| GX80 | 79.7 cc (4.88 cu.in.) | 2.0 HP at 3,600 rpm | |
| GX100 | 98 cc (6.0 cu.in.) | 3.0 PS at 3,600 rpm | |
| GX110 | 107 cc (6.5 cu.in.) | 3.5 PS at 4,000 rpm | |
| GX120 T1 | 118 cc (7.2 cu.in.) | 4.0 HP at 4,000 rpm | |
| GX120 UT2/T2 | 118 cc (7.2 cu.in.) | 3.5 HP at 3,600 rpm | |
| GX140 | 144 cc (8.78 cu.in.) | 5.0 PS at 4,000 rpm | |
| GX160 T1 | 163 cc (9.9 cu.in.) | 5.5 HP at 4,000 rpm | |
| GX160 UT2/T2 | 163 cc (9.9 cu.in.) | 4.9 HP at 3,600 rpm | |
| GX200 T | 196 cc (12.0 cu.in.) | 6.5 HP at 3,600 rpm | |
| GX200 UT2/T2 | 196 cc (12.0 cu.in.) | 5.6 HP at 3,600 rpm | |
| GX240 K1/T1/UT1 | 242 cc (14.8 cu.in.) | 8.0 HP at 3,600 rpm | |
| GX240 R2/RT2/T2/U2/UT2 | 270 cc (16.5 cu.in.) | 7.9 HP at 3,600 rpm | |
| GX270 K1/T1/UT1 | 270 cc (16.5 cu.in.) | 9.0 HP at 3,600 rpm | |
| GX270 T2/UT2 | 270 cc (16.5 cu.in.) | 8.4 HP at 3,600 rpm | |
| GX340 K1 | 337 cc (20.6 cu.in.) | 11.0 HP at 3,600 rpm | |
| GX340 R2/RT2/T2/U2/UT2 | 389 cc (23.7 cu.in.) | 10.7 HP at 3,600 rpm | |
| GX360 K1 | 359 cc (21.9 cu.in.) | 13.0 HP at 3,600 rpm | |
| GX390 K1 | 389 cc (23.7 cu.in.) | 13.0 HP at 3,600 rpm | |
| GX390 RT2/T2/UT2 | 389 cc (23.7 cu.in.) | 11.7 HP at 3,600 rpm | |
| GX610 K1 | 614 cc (37.5 cu.in.) | 18.0 HP at 3,600 rpm | |
| GX610 U1/R1 | 614 cc (37.5 cu.in.) | 16.6 HP at 3,600 rpm | |
| GX620 K1 | 614 cc (37.5 cu.in.) | 20.0 HP at 3,600 rpm | |
| GX620 U1/R1 | 614 cc (37.5 cu.in.) | 18.1 HP at 3,600 rpm | |
| GX630 | 688 cc (41.97 cu.in.) | 20.8 HP at 3,600 rpm | |
| GX640 | 635 cc (38.7 cu.in.) | 19.7 HP at 3,600 rpm | |
| GX660 | 688 cc (41.97 cu.in.) | 21.5 HP at 3,600 rpm | |
| GX670 | 670 cc (40.9 cu.in.) | 24.0 HP at 3,600 rpm | |
| GX670 U/R | 670 cc (40.9 cu.in.) | 20.5 HP at 3,600 rpm | |
| GX690 | 688 cc (41.97 cu.in.) | 22.1 HP at 3,600 rpm | |
| GXH SERIES | |||
| GXH50 | 49 cc (2.99 cu.in.) | 2.4 HP at 7,000 rpm | |
| GXR SERIES | |||
| GXR120 T/RT | 121 cc (7.4 cu.in.) | 3.6 HP at 3,600 rpm | |
| GXV SERIES | |||
| GXV50 | 49 cc (2.99 cu.in.) | 2.5 HP at 7,000 rpm | |
| GXV57 | 57 cc (3.50 cu.in.) | 2.0 HP at 4,800 rpm | |
| GXV120 | 118 cc (7.2 cu.in.) | 4.0 HP at 3,600 rpm | |
| GXV140 | 135 cc (8.2 cu.in.) | 5.0 HP at 3,600 rpm | |
| GXV160 | 163 cc (10.0 cu.in.) | 5.5 HP at 3,600 rpm | |
| GXV270 | 270 cc (16.5 cu.in.) | 8.5 HP at 3,600 rpm | |
| GXV340 | 337 cc (20.6 cu.in.) | 11.0 HP at 3,600 rpm | |
| GXV390 | 389 cc (23.7 cu.in.) | 13.0 HP at 3,600 rpm | |
| GXV520 | 530 cc (32.3 cu.in.) | 14.0 HP at 3,600 rpm | |
| GXV530 | 530 cc (32.3 cu.in.) | 16.0 HP at 3,600 rpm | |
| GXV610 K1 | 514 cc (37.5 cu.in.) | 18.0 HP at 3,600 rpm | |
| GXV620 K1 | 514 cc (37.5 cu.in.) | 20.0 HP at 3,600 rpm | |
| GXV630 R | 688 cc (41.97 cu.in.) | 20.8 HP at 3,600 rpm | |
| GXV660 R | 688 cc (41.97 cu.in.) | 21.5 HP at 3,600 rpm | |
| GXV670 | 670 cc (40.9 cu.in.) | 22.8 HP at 3,600 rpm | |
| GXV690 R | 688 cc (41.97 cu.in.) | 22.1 HP at 3,600 rpm | |
| iGX SERIES | |||
| iGX240 | 270 cc (16.5 cu.in.) | 7.9 HP at 3,600 rpm | |
| iGX270 | 270 cc (16.5 cu.in.) | 8.4 HP at 3,600 rpm | |
| iGX340 | 389 cc (23.7 cu.in.) | 10.7 HP at 3,600 rpm | |
| iGX390 | 389 cc (23.7 cu.in.) | 11.7 HP at 3,600 rpm | |
| iGX440 | 438 cc (26.7 cu.in.) | 12.7 HP at 3,600 rpm | |