11-07-2025, 09:51 PM
Brand & Model Background
The Terex SKL873 (sometimes noted as “SKL873 SP” in marketing literature) is a mid-sized articulated wheel loader produced in the early 2000s (circa 2002–2004). The “SKL” prefix stands for the designation used by Terex/Schaeff when Terex owned or marketed the Schaeff-branded loader line in various markets. In that era Terex was building a reputation for combining European linkage and hydraulic systems with global support networks. While exact global production numbers are not publicly broken down by model, this machine saw a fair presence in North American, European and export fleets, particularly in quarry, recycling and general construction loading tasks.
Key Specifications and Technology
Here are the core performance and specification figures for the SKL873:
Terex aimed the SKL873 at contractors needing a loader larger than compact machines but smaller than heavy-duty 40-ton class machines. Its SP (Schaeff-Parallel) linkage afforded good dump height and outreach while retaining manageable size for tight yards or recycling operations. In one job-site anecdote, a materials yard swapped out an older 12 ton loader with the SKL873 and found the cycle time reduced by ~15% due to the faster bucket cycle and larger capacity; this translated into an extra shift’s throughput each week. Over time, however, Terex’s loader division was folded into larger product rationalisation—Terex exited some loader segments and shifted global strategy towards other equipment. That means used units like the SKL873 now appear mostly in secondary markets and require diligence.
Common Operational and Maintenance Considerations
From user experience and market data the following points are worth attention:
Strengths
The SKL873 is well suited for:
In a mid-sized loader market that continues to favour versatility and cost‐efficiency, the Terex SKL873 remains a credible option when well maintained and properly evaluated. With diligent inspection, understanding of its service history and realistic usage expectations, it can deliver solid performance for operators seeking a workhorse that bridges compact and large loader categories.
The Terex SKL873 (sometimes noted as “SKL873 SP” in marketing literature) is a mid-sized articulated wheel loader produced in the early 2000s (circa 2002–2004). The “SKL” prefix stands for the designation used by Terex/Schaeff when Terex owned or marketed the Schaeff-branded loader line in various markets. In that era Terex was building a reputation for combining European linkage and hydraulic systems with global support networks. While exact global production numbers are not publicly broken down by model, this machine saw a fair presence in North American, European and export fleets, particularly in quarry, recycling and general construction loading tasks.
Key Specifications and Technology
Here are the core performance and specification figures for the SKL873:
- Operating (approx.) weight: ~29,767 lb (~13,500 kg) for the SP variant.
- Net engine power: 144 hp (≈103 kW) at 2,200 rpm, via a Perkins 1106C-E60TA six-cylinder turbocharged diesel.
- Bucket capacity: Standard general-purpose ~3.0 yd³ (~2.3 m³), light-material bucket up to ~4.6 yd³ (~3.5 m³).
- Breakout force: ~24,425 lb (~113 kN) on bucket edge.
- Tipping load (fully articulated): ~25,247 lb (~11,450 kg) per SAE J 732.
- Maximum travel speed (forward and reverse): ~24.9 mph (~40 km/h) in “high” range.
- Hydraulic pump flow capacity: ~41.2 gal/min (~156 L/min), relief pressure ~3,625 psi (~250 bar).
- Steering: Articulated centre-pivot frame with full hydraulic steering and total steering angle ~80°.
- Dimensions: Width ~2.50 m (~8’2”), height to top of cab ~3.10 m (~10’2”), turning radius outside bucket edge ~5.73 m (~18’9”).
Terex aimed the SKL873 at contractors needing a loader larger than compact machines but smaller than heavy-duty 40-ton class machines. Its SP (Schaeff-Parallel) linkage afforded good dump height and outreach while retaining manageable size for tight yards or recycling operations. In one job-site anecdote, a materials yard swapped out an older 12 ton loader with the SKL873 and found the cycle time reduced by ~15% due to the faster bucket cycle and larger capacity; this translated into an extra shift’s throughput each week. Over time, however, Terex’s loader division was folded into larger product rationalisation—Terex exited some loader segments and shifted global strategy towards other equipment. That means used units like the SKL873 now appear mostly in secondary markets and require diligence.
Common Operational and Maintenance Considerations
From user experience and market data the following points are worth attention:
- Hydraulic system wear: The machine’s articulated steering, loader linkage and full hydraulic controls mean the pump, cylinders and hoses see significant duty. Given ~41 gal/min flow at ~250 bar, any drop in flow or rise in internal leakage can reduce breakout force or raise cycle times. Regular monitoring of hydraulic oil condition (viscosity, contamination) and inspecting for cylinder rod scoring is advised.
- Transmission & drive train: The hydrostatic, two-speed drive train allows smooth variable speed but demands correct fluid maintenance. On older units hours may reach 6,000+ hrs or more. For example, a unit listed for sale in Houston (2003 SKL873) had ~5,979 hours with enclosed cab, ride control and auxiliary hydraulics. Ensure reduction gearboxes, oscillating rear axle and planetary final drives are properly serviced (oil change intervals, wear of spider gears) to prevent costly failures.
- Bucket linkage and pins: The SP linkage uses pin joints which over time may show play. Excessive play will reduce loading cycle precision and dump height, affect stability and lift capacity. A common story: an operator noticed the bucket hitch “slapping” under load—turns out the bucket pivot pin was worn, reducing breakout force by ~7–8%. On a large fill job that translated into ~1 extra shift.
- Cab, controls & visibility: While advanced for its era, checking ROPS/FOPS certification (SAE J1042 / J231) is wise. The cab insulation may degrade, A/C may fail, and older joystick control fatigue may set in. Given job-site comfort impacts operator satisfaction and productivity, confirm condition.
- Parts availability and support: While Terex has faded the loader line in some regions, parts for the Perkins engine and major hydraulic components remain fairly accessible. However, some niche items (specific linkage buckets, ride-control valves) may need sourcing from the used market or aftermarket. That merits factoring into total cost of ownership.
Strengths
- Good bucket size vs machine weight: At ~3–4 yd³ buckets on a ~13.5 ton machine the SKL873 offers strong productivity in mid-sized applications.
- Balanced performance: With ~144 hp and hydrostatic drive, it offers smooth operation, quick cycle speeds and competitive travel speeds for its class (~40 km/h).
- Compact footprint: The manageable width (~2.5 m) and turning radius (~5.7 m) allow use on tighter yards compared with larger machines.
- Age & support: Units now are nearly 20+ years old; extensive hours may exist, and support for niche components may lag.
- Fuel/operational economy: While acceptable at the time, newer machines may offer better fuel efficiency, lower emissions and more advanced electronics/telemetry.
- Payload limitation in high-tonnage work: While good for many tasks, in heavy quarry or large-load operations a larger loader may outperform it in “tons per hour” terms.
The SKL873 is well suited for:
- Recycling yards, where material size and cycle time matter.
- General construction aggregate handling without extremely high tonnage demands.
- Facilities needing a loader that is versatile, can travel between yards relatively quickly (thanks to its ~40 km/h travel speed) and yet not too large for confined spaces.
- Get the hour meter and inspect whether machine has had large hours (e.g., >6,000 hrs) and check maintenance history: hydraulics, drivetrain, linkage.
- Inspect hydraulic oil and look for milky (coolant contamination) or dark/mil-flake (wear) signs.
- Check bucket linkage pin wear: play should be minimal.
- Inspect oscillating axle for wear and final drives for leak-down or overheating.
- Consider total cost of ownership including parts lead time and availability.
- Estimate haul/travel requirements: if you must move machine frequently or over public roads, ensure travel speed and dimensions are acceptable (width ~2.5 m, weight ~13.5 t).
- For used purchase: budget for certain parts replacement (pivot pins, hoses, tires) and plan for upcoming major service interval (engine overhaul, final drives) if hours are high.
- Operating weight: The total machine weight inclusive of fluids, standard bucket and operator.
- Breakout force: Maximum force the bucket edge can exert to loosen material (important in loading hard material).
- Tipping load: The load at which machine would begin to tip under specified conditions, per standard (e.g., SAE J732).
- Hydrostatic drive: A transmission system where hydraulic fluid powers a motor to drive wheels/tracks, offering smooth infinite speed variation.
- Articulated steering: A steering system where the frame bends in the centre rather than using front wheels alone, improving manoeuvrability.
- ROPS/FOPS: Roll-Over Protective Structure / Falling Object Protective Structure—safety cab certifications.
In a mid-sized loader market that continues to favour versatility and cost‐efficiency, the Terex SKL873 remains a credible option when well maintained and properly evaluated. With diligent inspection, understanding of its service history and realistic usage expectations, it can deliver solid performance for operators seeking a workhorse that bridges compact and large loader categories.
