All Engine Types & Models Fitted to Howard Rotavators Past & Present.
PDF Manuals to view online or download for the engines can be found on the website by searching for the particular engine fitted in the Howard rotavator
OLD HOWARD MODELS (Engine Order)
| Engine | Model |
| Briggs & Stratton (2½hp | Bullfinch |
| Briggs & Stratton (13hp) | 2000 Tractor |
| Briggs & Stratton (4.3hp / 5hp) | 350 / 352 |
| BSA 120cc | Bantam / Demon |
| Clinton/Newton (2½hp) | Bullfinch |
| Hatz ES780U & E785U Diesel | Gem Series 5 |
| Honda (3.5hp) | Bullfinch / H200 |
| Howard AC (2 1/8hp) | Bantam |
| Howard DH22 (22.5hp) | DH22 |
| Howard DH226 (35hp) | DH226 |
| Howard M Series (2¼hp) | Farmette |
| Howard M Series (2¼hp) | Foxie |
| Howard BJ Engine (6hp) | Gem Series 1 |
| Howard 810cc (180°-9hp) | Gem Series 4 |
| Howard 810cc (360°-12hp) | Gem Series 5 |
| Howard L Series (4.2hp) | Hauler |
| Howard Junior (6hp) | Howard 5 |
| Howard Junior (6hp) | Howard Junior |
| Howard V Twin Air/Cool (9.4hp) | Howard 8 |
| Howard V Twin W/Cool (13hp) | Howard 12 |
| Howard LH Series (5.2hp) Howard L Series (4.2hp) Howard LH Series (5.2hp) Howard M Series (2¼hp)
Howard 2408 (7.6hp) |
Kelpie Terrier Terrier Trencher
2000 Tractor |
| Engine | Model |
| Jap 2A 98cc Jap 600cc Mk3
Jap 600cc Mk4/Mk5 |
Bullfinch (UK) Gem Series 2
Gem Series 3 |
| Kohler K161T (7hp) Kohler K91 (4hp) Kohler K141 (6hp) Kohler K301T (12hp) Kohler K341T (16hp)
Kohler K181T (8hp) |
Terrier 350
350 Gem Series 5 Super Gem Series 5 Dragon |
| Morris Engine (16hp) | Auto Rotary Hoe |
| Ruggerini RF120 Diesel (10hp) | Gem |
| Sachs 500 Diesel (9hp) | Gem Series 4 |
| Tecumseh (14hp) | 2000 Tractor |
| Villiers (1hp) Villiers 25c
Villiers Mk15 (3hp) Villiers Mk10/1 98cc Mk12/1 120cc Villiers (4.2hp) |
Cub Bantam
Bantam / Trencher Howard 200 (UK) Yeoman |
| Wisconsin (7hp) | Terrier |
| Yanmar TS70(C) Diesel (7hp) | 2000 Tractor |
| Machine | Engine Fitted |
| Auto Rotary Hoe | Morris Engine (16hp) |
| Bantam | BSA 120cc
Howard AC (2 1/8hp) Villiers 25c Villiers Mk15 (3hp) |
| Bullfinch / H200 (Aust) | Clinton / Newton (2½hp) Briggs & Stratton (3hp)
Honda (3.5hp) |
| Bullfinch (UK) Demon (UK) Howard 200 (UK) | Jap 2A 98cc BSA 120cc
Villiers Mk 10/1 98cc Villiers Mk 12/1 120cc |
| Cub | Villiers (1hp) |
| DH22 | Howard DH22 (22.5hp) |
| DH226 | Howard A Series (35hp) |
| Farmette | Howard M Series (2¼hp) |
| Foxie | Howard M Series (2¼hp) |
| Gem Series 1
Gem Series 2 Gem Series 3 Gem Series 4 Gem Series 5 Gem Series 5 |
Howard BJ Engine (6hp) Jap 600cc Mk3
Jap 600cc Mk4/Mk5 Howard 810cc Twin (180°-9hp) Howard 810cc Twin (360°-12hp) Hatz ES780U & E785U Diesel 9 & 11hp Sachs 500 Diesel (9hp) Ruggerini RF120 Diesel (10hp) Kohler K301T (12hp) Kohler K341T Super Gem (16hp) |
| Hauler | Howard L Series (4.2hp) |
| Howard 5 / Junior | Howard Junior (6hp) |
| Howard 8 | Howard V Twin Air cooled (9.4hp) |
| Howard 12 | Howard V Twin Water cooled (13hp) |
| Kelpie | Howard LH Series (5.2hp) |
| Terrier | Howard L Series (4.2hp)/ Wisconsin (7hp)
Kohler K161T (7hp) /Howard LH Series (5.2hp |
| Trencher | Howard M Series (2¼hp)
Villiers Mk15 (3hp) |
| Yeoman | Villiers (4.2hp) |
| 2000 Tractor | Howard LH Series (5.2hp) Howard 2408 (7.6hp)
Briggs & Stratton (10/12/13hp 202434/0136-01) Tecumseh (14hp) OH 140 – 160016A Yanmar TS70(C) Diesel (7hp) Yanmar L5 Diesel |
| H 350 | Briggs & Stratton (4.3hp) Kohler K91 (4hp)
Kohler K141 (6hp) |
| H 352 | Briggs & Stratton (5hp) |
