John Deere 318G Attachment Guide — What Fits, What Flows, What Works
The John Deere 318G is a compact-class skid steer trusted on farms, acreages, and small commercial operations across Canada. With 14.0 GPM standard flow and no high-flow option, knowing exactly what it can run — and what it can't — is critical before buying attachments.
Based on published John Deere manufacturer specifications, native SSQA coupler standards, and Canadian dealer context (Cervus Equipment (Prairies), RDO Equipment, and regional JD dealers). Written for Canadian operators evaluating attachments for the John Deere 318G. Not a dealer — no inventory verification. Last reviewed: 2026-03-17 by Skid Steer Attachments Canada.
Quick Fit Answer
Start with capacity, hydraulic flow, and coupler fit before comparing attachment brands.
Use this for attachment weight plus payload.
Primary number for augers, grapples, brooms, and most buckets.
Confirm the option is installed before buying high-flow attachments.
Mechanical fit still needs hydraulic and weight checks.
John Deere 318G Machine Specs
The 318G is the compact entry-level SSL in John Deere's G-Series lineup. Popular on agricultural operations, hobby farms, and small landscaping businesses, it's known for JD dealer reliability and a tight, barn-door-friendly footprint. The critical spec to understand is the 14.0 GPM standard flow — and the absence of any high-flow option on this model.
John Deere 318G — Factory Specifications
SSQA Coupler Notes
The 318G runs a native SSQA (Standard Skid Steer Quick Attach) coupler — the same universal standard used across most modern skid steer brands. This is a genuine advantage over Bob-Tach machines that require an adapter for third-party attachments:
- Universal SSQA attachments mount directly — no adapter required for any attachment marked "universal fit," "SSQA compatible," or "standard skid steer fit"
- Third-party brands (HLA, Virnig, Titan, CID, Paladin): All fit natively — no adapter needed
- Used attachments: Most used skid steer attachments in Canada are SSQA standard; they'll fit the 318G without modification
- Mini CTL plates (smaller machine formats) are incompatible — don't confuse with standard SSQA
Hydraulic Flow Table
The 318G has one hydraulic flow mode: 14.0 GPM standard. Understanding where this falls in the attachment requirement range determines what you can and cannot run on this machine.
| Flow Requirement | GPM Range | 318G Compatibility | Examples |
|---|---|---|---|
| Low flow (passive / light) | 0–10 GPM | ✅ Works | Snow pushers, buckets, forks, bale spears, box blades, land planes |
| Standard flow | 10–18 GPM | ✅ Works | Augers, grapples, small brooms, post drivers, cement mixers, angle brooms, standard trenchers |
| Mid-high flow | 18–25 GPM | ❌ Not Recommended | Hydraulic snow blowers, brush cutters, larger soil conditioners — the 318G's 14 GPM cannot support these |
| High flow | 25–45+ GPM | ❌ Not Compatible | Mulchers, cold planers, commercial snow blowers, forestry heads — requires a high-flow machine |
Full Compatibility Matrix
ROC = 1,600 lbs. Standard flow = 14.0 GPM. No high-flow option exists for this model.
✅ Standard Flow — Works on 318G
| Attachment | Compatibility | Notes |
|---|---|---|
| GP Buckets (dirt, gravel) | ✅ Standard Flow | 60–66" optimal; 72" max. ROC of 1,600 lbs limits heavy bucket fills — size accordingly |
| Pallet Forks | ✅ Standard Flow | 1,600 lb ROC; 48" forks standard; ideal for farm supply bags and light pallets |
| Bale Spears | ✅ Standard Flow | Single spear handles small rounds and large squares; double spear for efficiency |
| Auger Drives (standard flow) | ✅ Standard Flow | Up to 12–14" bits in average soil; 14 GPM runs standard auger motors comfortably |
| Dozer / Angle Blades | ✅ Standard Flow | 72–84" optimal for this compact frame |
| Grapples (root, brush) | ✅ Standard Flow | 60–66" widths work well; light grapples preferred given 1,600 lb ROC |
| Snow Pushers (box blades) | ✅ Standard Flow | 8'–10' optimal; passive attachment, no hydraulics required |
| Angle Brooms / Sweepers | ✅ Standard Flow | Hydraulic brooms typically 8–14 GPM; 318G runs them comfortably |
| Box Blades / Landplanes | ✅ Standard Flow | 72–84" typical; passive attachment, no flow required |
| Post Drivers | ✅ Standard Flow | Standard-flow post drivers work well within 14 GPM range |
| Cement / Concrete Mixers | ✅ Standard Flow | Most drum mixers run 8–14 GPM; 318G handles comfortably |
| Trenchers (standard flow, light) | ✅ Standard Flow | Light trenchers at 10–14 GPM work; heavy-duty rock trenchers may exceed 14 GPM requirement |
| Light Hydraulic Breakers | ✅ Standard Flow | Small-to-mid breakers at 10–14 GPM fit; check spec sheet for exact requirement |
| Power Rakes / Landscape Rakes | ✅ Standard Flow | Light hydraulic power rakes at 10–14 GPM run fine on 318G |
❌ Not Recommended — Requires High Flow Not Available on 318G
| Attachment | Compatibility | Notes |
|---|---|---|
| Mulchers / Forestry Heads | ❌ Not Compatible | Mulchers require 25–40+ GPM. The 318G's 14 GPM cannot run a mulcher. No upgrade path exists. |
| Hydraulic Snow Blowers | ❌ Not Compatible | Commercial snow blowers require 25–35 GPM. The 318G cannot run hydraulic snow blowers. Use a snow pusher instead. |
| Cold Planers | ❌ Not Compatible | Cold planers require 28–40+ GPM. Not a 318G application. |
| Rotary Cutters / Brush Cutters | ❌ Not Compatible | High-speed brush cutters require 20–35 GPM. The 318G's 14 GPM will underperform and risk damaging the motor. |
| Flail Mowers (commercial) | ❌ Not Compatible | Commercial flail mowers need 25–35 GPM. Not compatible with 318G hydraulics. |
| Soil Conditioners (full-size) | ❌ Not Compatible | Full-size soil conditioners typically require 20–35 GPM for rated performance. 318G is not suited. |
⚠️ Weight-Limited — Check Against 1,600 lb ROC
| Attachment | Compatibility | Notes |
|---|---|---|
| Rock Grapples / Heavy Grapples | ⚠️ Check Weight | Heavy commercial rock grapples can weigh 1,200–2,000+ lbs. At 1,600 lb ROC, confirm attachment weight leaves usable payload margin. |
| Heavy-Duty Auger Drives + Large Bits | ⚠️ Check Weight | Larger auger drives with 18"+ bits can approach 700–900 lbs. Combined with soil resistance, this approaches ROC limits on the 318G. |
| Backhoe Attachments | ⚠️ Check Weight | Mid-size backhoe attachments can be 900–1,400 lbs. Verify attachment weight is within ROC before purchase. |
Recommended Attachment Widths for the 318G
The 318G is a compact machine — its smaller frame and 1,600 lb ROC drive width recommendations down compared to larger skid steers. The machine's approx. 62" overall width also affects what fits through farm gates and barn openings.
Buckets
Snow Pushers
Dozer / Angle Blades
Grapples
Power Rakes
Sweepers
What to Avoid on the 318G
- Any attachment labeled "high-flow required": The 318G has no high-flow option. Mulchers, commercial snow blowers, cold planers, rotary cutters, and soil conditioners requiring 18+ GPM will not work on this machine.
- Mulchers of any size: There is no circumstance where a mulcher works on a 318G. The flow requirement gap is too large — 14 GPM vs 25–40+ GPM required. Sellers who claim "it'll run a little slow" are misleading you; running a mulcher on starved flow causes motor and motor seal damage.
- Hydraulic snow blowers: The 318G cannot run a hydraulic snow blower. Buy a passive snow pusher (8'–10') instead — it's the correct tool for this machine and works extremely well.
- Wide buckets beyond 72": Buckets wider than the machine's frame create instability and exceed the effective ROC at extension. The 318G's 1,600 lb ROC is modest — don't compound it with overwidth attachments.
- Overweight attachments approaching or exceeding 1,600 lbs: Many operators focus on hydraulic flow and forget about ROC. On a 1,600 lb ROC machine, heavy attachments (rock grapples, backhoes, large auger drives) must be carefully checked against the weight spec.
- Used attachments with non-SSQA plates: The 318G runs native SSQA. Most used attachments are SSQA compatible, but some older or brand-specific attachments use different plate geometries. Confirm before buying.
Canadian Regional Context
Prairies — Agriculture and Hobby Farm Stronghold
The JD 318G thrives in the Prairie provinces — Manitoba, Saskatchewan, and Alberta — where John Deere's dealer density is unmatched. Rocky Mountain Equipment, C&C Equipment, and independent JD dealers across the ag belt mean fast parts access and service. Farm operators use the 318G for bale handling, bucket work, post driving, and yard maintenance. The machine's compact width fits through standard farm gate openings that stop larger skid steers. At 1,600 lb ROC, it handles round bales and grain bags without issue on level ground.
Ontario — Hobby Farms and Small Landscaping
Ontario's dense JD dealer network (50+ locations across the province) makes the 318G a natural choice for hobby farm operators in the Golden Horseshoe fringe, Grey-Bruce, Northumberland, and Eastern Ontario regions. Small landscaping businesses appreciate its compact footprint for residential site work and driveway maintenance. The 318G's native SSQA coupler means maximum attachment flexibility without additional adapter investment — important for operators who share attachments across different machines.
Eastern Canada — Acreage and Light Commercial
In New Brunswick, Nova Scotia, and PEI, the 318G appears on small acreages and mixed operations where a compact, reliable machine covers multiple seasonal jobs — snow pushing in winter, bale and material handling through the year. John Deere Maritime dealers support parts availability. The machine's 60 hp PowerTech engine is straightforward to service at any JD dealership with minimal specialty tooling.
John Deere 318G Buyer FAQ
Can a John Deere 318G run a mulcher or hydraulic snow blower?
No. The 318G has 14.0 GPM standard flow and no high-flow option available — there is no upgrade path on this model. Mulchers require 25–40 GPM and hydraulic snow blowers require 25–35 GPM, both far above the 318G's 14 GPM ceiling. Instead, use a passive snow pusher (8–10 feet) for winter work and avoid all high-flow attachment categories entirely.
What bucket size is best for a John Deere 318G?
A 60–66 inch bucket is optimal for the 318G's 1,600 lb ROC. The machine's compact width also means wider buckets create instability during loaded travel. For most farm and light site work, a 66 inch GP dirt bucket is the practical maximum — filling it with dense gravel or wet clay will approach the 1,600 lb ROC limit quickly.
What quick-attach system does the John Deere 318G use?
The 318G uses a native SSQA (Standard Skid Steer Quick Attach) coupler — the universal industry standard. Any attachment marked "universal skid steer fit" or "SSQA compatible" mounts directly without an adapter. This gives 318G owners access to the widest possible third-party attachment market, including all major Canadian brands and used attachments from any SSQA-compatible machine.
Is the John Deere 318G a good used buy for hobby farm operators on the Prairies or in Eastern Canada?
Yes — the 318G is well-suited for hobby farm and acreage use across the Prairies, Ontario, and Atlantic Canada. John Deere's dense dealer network (Rocky Mountain Equipment in Western Canada, WFD Tractor in Ontario, and Maritime dealers) makes parts access reliable even in rural areas. At 1,600 lb ROC it handles round bales, post driving, and yard work within its limits — buyers should simply confirm the machine's 14.0 GPM flow is understood before investing in any hydraulic-intensive attachments.
318G is a bucket, fork, grapple, and broom machine
With 14.0 GPM standard flow and no high-flow option, the 318G excels at core material handling tasks. Focus on the right-sized attachments for your ROC and flow, and this compact Deere delivers strong value on farm and small-site applications.