The Gehl R105 is a mid-size radial-lift skid steer with 2,315 lb ROC and a high-flow option that opens access to mulchers, commercial breakers, and other demanding attachments. Here's what you can run at standard flow, what the high-flow option unlocks, and how the Gehl–Mustang brand relationship affects your parts and used machine search.
The Gehl R105 sits in the mid-size tier of the Gehl R-series skid steer lineup. At 2,315 lb ROC and 74.3 hp, it's a step up in capacity from compact models — strong enough for real farm and construction work, and with the optional high-flow package, it runs demanding hydraulic attachments that compact machines simply can't handle. This is the machine in the Gehl lineup where the high-flow option becomes meaningful for mulching and heavy breaker applications.
The availability of high-flow on the R105 is the key differentiator that separates it from compact Gehl models. At ~33.3 GPM (~126 L/min) with the high-flow option installed, the R105 can run a range of demanding attachments that are completely off the table on the R75 or R165:
The Gehl R105 uses the Gehl/Mustang SSQA coupler — the industry-standard plate geometry shared across the vast majority of the skid steer market. Any attachment labelled "universal SSQA" or "standard skid steer fit" mounts to the R105 directly, without an adapter plate.
Gehl and Mustang by Manitou are the same machines. Both brands are owned by the Manitou Group and produced on the same production lines with identical engineering, hydraulics, and components. The R105 and its Mustang equivalent differ only in decals and dealer network. This is not a rebadging arrangement that involves different specifications — these are genuinely the same machine.
Why this matters for Canadian R105 owners:
This matrix covers common skid steer attachments against the R105's hydraulic output. Standard flow is ~19 GPM (~72 L/min). High-flow (when installed) is ~33.3 GPM (~126 L/min). ROC is ~2,315 lb (~1,050 kg).
| Attachment | Compatibility | Notes |
|---|---|---|
| GP Buckets (dirt, gravel, topsoil) | ✅ YES | 60"–66" optimal for standard material; 68" max on lighter materials |
| Pallet Forks | ✅ YES | 2,315 lb ROC handles standard pallet loads; 48"–60" fork frames |
| Bale Spears | ✅ YES | Handles large round bales; verify bale weight vs 2,315 lb ROC for wet bales |
| Root Grapple / Bucket Grapple | ✅ YES | Standard aux flow; 54"–66" widths work well with this mid-size frame |
| Auger Drive (6"–16" bit) | ✅ YES | Standard auger drives within ~19 GPM range; larger bits in harder soil benefit from high-flow |
| Snow Pusher / Box Blade | ✅ YES | Passive attachment; no flow required; 9'–12' optimal for mid-size frame |
| Angle / Dozer Blade | ✅ YES | 72"–84" blade; hydraulic angle function well within flow range |
| Landscape Rake / Power Rake | ✅ YES | Hydraulic rakes typically 12–18 GPM; fits R105 standard flow |
| Hydraulic Breaker (standard to mid-size) | ✅ YES | Standard to mid-size breakers run well at ~19 GPM; large breakers benefit from high-flow |
| Angle Broom / Sweeper | ✅ YES | Hydraulic brooms typically 12–18 GPM; 66"–72" widths appropriate |
| Box Blade / Land Plane | ✅ YES | Passive attachment; no flow required; 72"–84" blade width |
| Cement Mixer (drum) | ✅ YES | Drum mixers run 10–16 GPM; R105 handles comfortably |
| Post Driver | ✅ YES | Standard post drivers within ~19 GPM range; heavy post drivers benefit from high-flow |
| Trencher (compact to mid-size) | ✅ YES | Trenchers to 48" depth typically 12–20 GPM; fits R105 standard flow |
| Attachment | Compatibility | Notes |
|---|---|---|
| Brush Mulchers / Forestry Heads | ✅ WITH HIGH-FLOW | Most mulchers require 28–36 GPM. R105 at ~33.3 GPM covers the majority of market options — verify specific product flow requirement |
| Commercial Snow Blowers (hydraulic) | ✅ WITH HIGH-FLOW | Commercial snow blowers typically 25–40 GPM; R105 HF handles most models in the 25–33 GPM range |
| Heavy Hydraulic Breakers | ✅ WITH HIGH-FLOW | Large breakers (800–1,500 ft-lb class) benefit from high-flow; R105 HF is appropriate for mid-to-large breaker work |
| Stump Grinders (mid-size) | ✅ WITH HIGH-FLOW | Mid-size stump grinders typically 25–35 GPM; verify individual product spec |
| Soil Conditioners (full-size) | ✅ WITH HIGH-FLOW | Full-size rotary conditioners run properly at 25–35 GPM; R105 HF is appropriate |
| High-Flow Post Drivers | ✅ WITH HIGH-FLOW | Commercial post driver heads with high-flow demand; check individual product spec |
| Attachment | Compatibility | Why Not |
|---|---|---|
| Mulchers Requiring 35+ GPM | ❌ NO | Some commercial forestry heads require 35–45 GPM; R105 high-flow tops at ~33.3 GPM. Verify the specific mulcher's minimum flow requirement. |
| Cold Planers (heavy duty) | ❌ NO | Heavy cold planers can require 35–45 GPM; above R105 high-flow ceiling. Light cold planers may be marginal — verify. |
| Attachment | Compatibility | Weight Guidance |
|---|---|---|
| Heavy Construction Buckets (AR plate) | ⚠️ CHECK WEIGHT | Heavy AR400 rock buckets can weigh 900–1,400 lbs empty. Add dense aggregate payload and total can approach or exceed 2,315 lb ROC. Verify attachment weight and intended payload before ordering. |
| Large Round Bales (wet) | ⚠️ CHECK WEIGHT | Wet large round bales can exceed 1,800–2,000 lbs. The R105's 2,315 lb ROC provides margin, but verify bale weight — especially with wet-season baling. |
The R105 is a mid-size machine. These width recommendations balance the machine's 2,315 lb ROC and frame dimensions for practical, stable operation.
With the high-flow package installed, the R105 becomes a capable mulching platform. At ~33.3 GPM it covers most commercial mulcher models in the mid-size range. In Ontario, Quebec, and western Canada where bush clearing and acreage work are common, the R105 with high-flow is a practical step up from compact machines that can't run mulchers at all. Always confirm the specific mulcher's GPM requirement against your machine's high-flow output.
The R105 runs standard to heavy breakers effectively. At standard flow, mid-size breakers handle residential demolition, concrete removal, and rock work. With high-flow, the R105 accesses larger breaker classes for serious demolition applications. A reliable mid-size breaker is one of the most practical attachments for a machine in the R105's capacity class.
A 60"–66" GP bucket at 2,315 lb ROC is a capable working combination for farm, landscaping, and light construction. Pallet forks on the R105 handle most standard commercial pallet loads — lumber packs, building materials, bag goods. The machine's ROC gives more working margin than compact models for loaded-fork work.
The R105 is well-positioned for commercial snow removal in Canada. Standard-flow snow pushers in the 9'–12' range are a practical combination for lot clearing, and with high-flow installed, a commercial snow blower opens up for operators who need throw distance and clearance speed. The R105's 2,315 lb ROC provides good pushing force for snow work.
Root grapples and bucket grapples in the 54"–66" range are excellent on the R105. At 2,315 lb ROC with good standard-flow hydraulics, the R105 handles substantial brush, debris, and demolition material in a grapple bucket. A practical combination for land clearing, storm cleanup, and construction site management.
The most common mistake for R105 buyers and attachment purchasers: assuming the high-flow package is present. It is an option, not standard equipment. Ordering a brush mulcher or commercial snow blower for an R105 without high-flow installed means you'll have an attachment that won't run correctly. Confirm the specific machine's configuration — especially on the used market where the original build options may not be obvious.
Even with high-flow installed, the R105's ~33.3 GPM output has a ceiling. Some commercial forestry mulchers and heavy brush cutters specify 35–45 GPM minimum flow. Running these underpowered causes poor performance and risks overheating the hydraulic system. Check the specific mulcher's datasheet for minimum and optimal flow before purchasing.
The R105 is a mid-size machine — not a large-frame unit. Running a 78"+ bucket or a 14' snow pusher on a 2,315 lb machine pushes beyond what the frame and ROC are designed to handle with heavy loads. Stay within the width recommendations. The attachment should match the machine's actual capacity, not just its SSQA fit.
The R105 is the mid-size workhorse in the Gehl lineup for Canadian operators who need more than a compact machine but don't require a full large-frame unit. It's a practical machine for mixed farm, construction, and landscaping applications — especially when the high-flow option is part of the build.
As noted throughout this guide, Gehl and Mustang by Manitou are the same machines with the same parts, built by the same company. Canadian buyers have access to a broader service network than the Gehl badge count suggests. Manitou-authorized service locations can support R105 machines. Mustang dealers stock Gehl-compatible parts under shared Manitou parts numbers.
Cervus Equipment handles Gehl at select locations in Alberta and Saskatchewan. For western Canadian R105 owners, Cervus is the primary Gehl dealer source for parts, service, and new machine acquisition.
At ~19 GPM standard flow and ~33.3 GPM with the high-flow option, the R105 covers the full attachment range from buckets and forks to mulchers and commercial breakers. Verify your machine's configuration before ordering high-flow attachments.