A 6K (6,000 lb / 2,722 kg) rough terrain forklift is a 4WD, diesel-powered industrial truck built for construction sites, lumber yards, farms, and uneven outdoor surfaces. Several major manufacturers offer models in this class.
Key Specifications
Model Engine Power Lift Height Operating Weight Width Drive
JCB 930 RTFL 74 hp (55 kW) [12†L5-L6] 22 ft 5 in (6.7 m) [12†L4-L5] 14,495 lbs [12†L6] 7.5 ft [8†L23-L24] 2WD/4WD switchable [12†L28-L29]
Case 586H 74 hp (55 kW) [13†L22] 22 ft [8†L24] 14,621 lbs [8†L25] 7 ft [8†L23-L24] 4WD [8†L8]
Sellick SLP60 74 hp turbo diesel [11†L12] 6,000 lbs @ 24" load center [6†L4-L6] 13,422 lbs [11†L10] 78 in (1,981 mm) [6†L10-L11] 2WD/4WD [6†L17-L18]
Manitou MC30-4 49 hp [10†L4-L5] Varies Varies Varies 4WD [10†L6]
Viper FD30RT Diesel 187 in (15.6 ft) [9†L14] Varies Varies 2WD
Model Details
JCB 930 RTFL – 74 hp EcoMAX engine (no DEF required) [12†L25-L27], zero tail swing design [12†L21-L22], 22 ft mast with automatic deration above 15 ft [12†L33-L34], LiveLink telematics standard [12†L35-L36].
Case 586H – Built on same chassis as Case loaders and backhoes [13†L8-L9], exclusive Load Control minimizes shock to load [13†L10-L11], road speeds up to 24 mph [13†L12], enclosed cab with heat/AC option [13†L13-L14].
Sellick SLP60 – Low profile design for tight spaces [11†L6-L7], 2-stage or 3-stage full free lift SEE-THRU mast [11†L11], 4-speed synchroshuttle or automatic transmission [11†L13], compact dimensions for close quarters [11†L13-L14].
Manitou MC30-4 – Heavy-duty all-terrain industrial forklift [10†L7], 4-wheel drive for demanding terrain [10†L6], purpose-built for construction and agricultural applications [10†L10-L11].
2026 Price Range
Model Price (USD) Condition
Viper FD30RT $36,900 [9†L4] New 2026
Mastercraft MC-605-7 $10,995 [2†L22] Used
JCB 930 Auction (varies) [3†L4-L7] Used
Ingersoll Rand RT-706 $8,500 [3†L10] Used
SkyTrak 6034 Starting at $19,000 [3†L34] New/Used
The bottom line: A 6K rough terrain forklift offers 6,000 lb capacity with diesel power and 22 ft lift height. Key models include JCB 930 ($14,495 weight, 74 hp, 2WD/4WD), Case 586H (74 hp, 24 mph road speed), Sellick SLP60 (13,422 lbs, 78" wide), and Viper FD30RT (new $36,900). Used units start around $8,500–$11,000. Choose based on lift height, width, and 2WD/4WD requirements for your terrain.