The INEOS Grenadier towing capacity is 7,716 lb (3,500 kg) across all variants — both Station Wagon and Quartermaster, petrol and diesel. That puts it in the same conversation as mid-size trucks and full-size SUVs. But the Grenadier isn't a truck, and towing with one has quirks that caught early owners off guard: a universal hitch receiver with non-standard US sizing, wiring harness complications, and a 115-inch wheelbase that makes weight distribution critical.
Getting a proper tow setup on the Grenadier requires understanding what you're working with. This guide covers every detail — from official specs to the real-world problems owners solved in the forums.
Quick Answer
INEOS Grenadier Towing: The Short Version
- Max braked towing: 7,716 lb (3,500 kg) — all variants, both engines
- Max tongue weight: 772 lb (350 kg) — often the binding constraint
- Hitch receiver: Universal design fits fixed towball, 50mm jaw, NATO pintle, or Class III NAS — but US accessories may need fitment check (2.010" × 2.036" opening)
- Spare tire clearance: Use a hitch extender for bike racks and accessories
- Fuel economy towing: Expect 8–10 mpg (B58 petrol) — plan fuel stops every 140 miles
- Weight distribution hitch: Required for trailers over 4,000 lb given 115" wheelbase
DVA Rear Hitch Receiver
DVA's Rear 2" Hitch Receiver is a heavy-duty bolt-on upgrade that uses existing chassis mounting points — no drilling, no welding. It's designed for the US market with standard 2" receiver dimensions, compatible with ball mounts, bike racks, and cargo carriers out of the box.
Official Towing Specifications
Every Grenadier variant — Station Wagon and Quartermaster, petrol (B58) and diesel (B57) — shares the same maximum towing capacity. There's no variation by trim level or engine choice.
In metric terms, that's 3,500 kg braked and 750 kg unbraked. The tongue weight limit of 350 kg (772 lbs) is where most owners need to pay close attention — it's the constraint that actually limits what you can hitch up.
The Grenadier's wheelbase is 115 inches (2,922 mm) — shorter than most vehicles used for heavy towing. This makes proper weight distribution and hitch setup critically important for stability, especially with trailers over 5,000 lbs.
| Specification | Station Wagon | Quartermaster |
|---|---|---|
| Max Braked Towing | 7,716 lbs (3,500 kg) | 7,716 lbs (3,500 kg) |
| Max Unbraked Towing | 1,653 lbs (750 kg) | 1,653 lbs (750 kg) |
| Max Tongue Weight | 772 lbs (350 kg) | 772 lbs (350 kg) |
| Payload Capacity | ~1,889 lbs (857 kg) | ~1,675 lbs (760 kg) |
| Wheelbase | 115 in (2,922 mm) | 135 in (3,427 mm) |
The Quartermaster's longer 135-inch wheelbase actually makes it a better tow vehicle from a stability standpoint, though it's less common in the US market.
The Hitch Receiver: A Universal Design with US Complications
The Grenadier uses a universal hitch platform designed for global markets. It accepts fixed towballs, NATO pintle hitches, 50mm jaw couplings, and Class III NAS receiver hitches. In theory, this flexibility is an advantage. In practice, US owners have discovered some frustrating quirks.
The Tight Tolerance Problem
The most common complaint: the 2-inch receiver opening on some Grenadiers is tighter than what American hitch accessories expect. One owner measured it precisely and posted his findings on The Grenadier Forum:
The INOES tow hitch receiver port measures 2.010" x 2.036" (so at least it's over 2"), however, the trailer hitches and bike rack I have measure anywhere from 2.045" to 2.052". None of them fit into the factory installed INEOS tow hitch receiver.
— Scotty8154, TheIneosForum.com (Inlet Beach, FL)
The root cause? The Grenadier's receiver is spec'd from a metric-origin design. While 50mm and 2 inches are close, they're not identical — 2 inches equals 50.8mm. Depending on manufacturing tolerances on both the receiver and your hitch accessories, you may get a perfect fit, a tight-but-workable fit, or an impossible fit.
While 50 mm and 2" are similar, they are not the same — 2 inches = 50.8 millimeters. It sounds like you might have metric bits going into your hitch.
— INEOS OG, TheIneosForum.com (California)
Other owners report no issues at all. A Wisconsin-based owner noted that "a standard aftermarket ball mount fits fine," while another confirmed his 1Up bike rack worked perfectly. The variation comes down to manufacturing tolerances across different accessory brands.
The Hitch Pin Flange Issue
The universal hitch design includes a large flange around the pin hole that makes inserting standard US hitch pins awkward. Locking pins with side-mounted keys are particularly difficult. Owners have found that the TOPSHINE 5/8" locking pin (available on Amazon) fits well, and several recommend Paclock's trailer locks for their end-mounted key design.
If your hitch accessories won't slide into the receiver, try a fresh aftermarket ball mount first — new, unworn accessories tend to fit. For older accessories with rust buildup, light sanding of the shank can make the difference. If it's genuinely too tight, a light pass with a grinder on the receiver's interior edges is the common forum solution.
OEM vs. Aftermarket Hitch Options
Not every Grenadier ships with a hitch receiver. If you bought one off the lot without the factory tow package, you have two main paths.
OEM Hitch Installation
INEOS dealers can install the factory hitch and wiring harness after purchase. The OEM towing control module integrates with the vehicle's electronics — it disables rear parking sensors and adjusts ABS/ESP profiles when a trailer is detected. Early US deliveries had problems with the trailer wiring package (brake and signal lights not sequencing correctly with vehicle lights), but INEOS has since resolved this through a software update.
Expect to pay around $3,000–$4,000 for dealer installation of the factory hitch and wiring harness, though prices vary significantly by dealer.
Aftermarket Hitch (Receiver Only)
For owners who only need a receiver for bike racks or light cargo carriers, the DVA Rear 2” Hitch Receiver is the most purpose-built option for US-market Grenadiers. It's crafted from heavy-duty steel and bolts directly to the existing chassis mounting points.
You just remove two torx bolts to take off the plastic cover and then install the hitch receiver with 4 bolts and Loctite. I put a cheap rubber cover in it when the bike rack is not in use.
— mji111, TheIneosForum.com (Philadelphia, PA)
The DVA receiver ships directly to your door and installs in under an hour. It does not include wiring — so it's not suitable for trailer towing without a separate wiring installation.
Full Aftermarket Tow Package
A Texas-based owner on the forum developed a complete aftermarket tow package including the receiver mount, receiver and ball, trailer plug bracket (at the factory location), and all wiring and connections. For trailer brake integration, the RedArc brake controller is the recommended pairing. Aftermarket suppliers also offer solutions for both hitch and wiring, though none replicate the OEM integration that adjusts parking sensors and ABS profiles.
The Spare Tire Clearance Problem
The Grenadier's rear-mounted spare tire creates a clearance issue that every towing and bike rack owner needs to plan for. Hitch-mounted accessories sit directly behind the spare, and depending on the accessory, you may not be able to fold bike racks up or fit multiple bikes.
I bought a hitch extender to clear the spare wheel. Both the extender and my 1Up bike rack fit the Grenadier fine.
— Tom109, TheIneosForum.com (New Jersey)
A hitch extender solves the clearance problem but introduces a trade-off: it reduces your effective tow rating. For bike racks and light cargo carriers, this isn't an issue. For actual trailer towing, one owner noted that he got a longer straight bar (rather than a drop/rise extender) to maintain the full 7,716-lb tow rating.
Real-World Towing Performance
The spec sheet says the Grenadier can handle 7,716 lbs. But what's it actually like to tow near that limit?
Power and Stability
The B58 petrol engine produces 281 hp and 331 lb-ft of torque. The B57 diesel delivers 245 hp and 406 lb-ft. Both pair with a ZF 8-speed automatic. Owners towing heavy loads consistently report that the engine handles the weight — the concern is more about the short wheelbase and stability.
I've towed similar trailers for about 40-50k miles over the past 15 or so years. Grenadier is a short wheelbase and low power for a 32' box trailer but people do it. Proper weight distribution hitch setup with correct ball height, level trailer etc is critical to stability given your rig.
— Asnes, TheIneosForum.com (Louisville, CO)
One Colorado owner planning to tow a 7,700-lb travel trailer cross-country was advised to add airbags, an electronic brake controller, and anti-sway bars — standard recommendations for any short-wheelbase tow vehicle pulling near its limit.
Fuel Economy While Towing
This is where reality hits hardest. The Grenadier is not fuel-efficient to begin with — owners report 13–15 mpg untowed in real-world US driving. Under tow, that drops dramatically.
One Arizona owner shared a cautionary tale about towing a ~7,000-lb camper through 112°F heat with a headwind:
My average economy without towing has been 13.5 mpg. I was pulling my camper (~7,000 pounds). It was 112°F. I was on the I-10 in Arizona with cruise control set to 65 mph. There was a 25 mph headwind... the fuel level dropped alarmingly quickly. The gauge finally hit the empty mark with 5 miles left to the gas station. At 3.5 miles, the engine started to sputter.
— LeeroyJ, TheIneosForum.com (Arizona)
Expect 8–10 mpg while towing heavy loads in the petrol B58. The diesel B57 fares somewhat better, but plan your fuel stops conservatively — the ~24-gallon tank gives you limited range under heavy towing conditions.
At 8 mpg towing and a 24-gallon tank, your theoretical range is only about 192 miles. Build in a 25% safety margin and plan fuel stops every 140–150 miles when towing heavy. The fuel gauge behavior under heavy load can be unpredictable — don't trust the percentage reading in extreme conditions.
Wiring and Electrical Considerations
The wiring harness situation is the single most frustrating aspect of Grenadier towing for US owners. Early deliveries had a known problem: the trailer brake and signal lights didn't properly sequence with the vehicle's lights. INEOS resolved this, but the confusion lingers.
What You Need to Know
- NATO Plug: The NATO electrical outlet on the left side of the hitch receiver is for high-load trailer accessories and is powered through the vehicle's optional high-load auxiliary switch circuit. This is separate from the standard trailer lighting wiring.
- OEM Towing Module: The factory towing control module integrates trailer detection with parking sensors and ABS/ESP. Aftermarket wiring solutions don't replicate this integration.
- Brake Controllers: For trailers with electric brakes, you'll need a standalone brake controller. The RedArc is the most recommended unit among Grenadier owners for its clean integration.
- Front Hitch: Some owners have installed front receiver hitches for winch mounting. There is no factory wiring harness for the front — any electrical needs require custom wiring.
Towing Setup Checklist
Before Your First Tow
- Verify your hitch pin fits — test before you're on the road. The flange can make some locking pins impossible.
- Check receiver compatibility — slide your ball mount or accessory shank into the receiver at the dealer before you buy.
- Install a weight distribution hitch for anything over 4,000 lbs — the 115" wheelbase makes this non-optional.
- Add anti-sway control — either integrated into your WDH or as a separate friction sway bar.
- Install an electronic brake controller for trailers with electric brakes. Budget $200–$400 for a quality unit plus installation.
- Plan fuel stops at 140-mile intervals when towing heavy. Don't trust the fuel gauge percentage in extreme conditions.
- If using a hitch extender for spare tire clearance, verify the tongue weight rating of the extender matches your needs.
- Consider airbag suspension helpers for loads that push tongue weight near the 772-lb limit.
The Grenadier is a capable tow vehicle — 7,716 lbs is a genuine rating, and owners are pulling travel trailers, boat trailers, and off-road campers across continents. But it rewards preparation more than most tow vehicles. The short wheelbase demands proper weight distribution. The global hitch design demands verifying compatibility before you're in the parking lot with a trailer. And the fuel economy demands honest range planning.
Get those details right, and the Grenadier's solid axles, low-range transfer case, and robust chassis make it one of the most interesting tow vehicles on the market — especially if your towing route involves dirt roads that would stop a half-ton truck.
DVA Mechanics
Grenadier Rear Section Gear
When the Grenadier is your tow vehicle, the rear section carries more weight than just the hitch. These DVA accessories mount directly to the factory ladder — no rack needed.
Rear 2” Hitch Receiver
Heavy-duty bolt-on. No drilling, no welding. US 2” standard for all ball mounts and carriers.
Ladder-Mounted Accessory Carrier
Modular gear mount for the factory ladder. Keeps recovery and camp gear off the roof when towing.
Recovery Board Carrier
Ladder-mounted recovery board carrier. For when your towing route ends on a track that needs recovery gear.
All Grenadier Accessories
Explore the full range of DVA Grenadier accessories — engineered specifically for this vehicle.