The 2026 BMW X7 has 19 cooling system parts with verified fitment on this page — 7 part types and 9 brands, covering both the 3.0L L6 Turbocharged and the 4.4L V8 Turbocharged. Each part includes a manufacturer part number and application notes.
The cooling system system on the 2026 BMW X7 keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses. The largest groups are Coolant Reservoir Cap (6 parts), Coolant / Antifreeze (3 parts) and Radiator (3 parts). The other 4 part types cover the remaining 7 parts.
The 2026 BMW X7 was sold with both the 3.0L L6 Turbocharged and the 4.4L V8 Turbocharged. 9 parts fit every engine; the other 10 are engine-specific. Each part shows which engine(s) it fits.
9 brands supply cooling system parts for the 2026 BMW X7, led by REIN (6 parts), MOTORAD (4 parts) and PRESTONE (2 parts), plus 6 more brands. Quality grades include Heavy Duty and Standard Replacement.
Each part number listed for the 2026 BMW X7 opens a page with every vehicle that part fits.
Coolant / Antifreeze
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Fits: all 2026 X7 engines | AFC12100 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Command Nitrite Free Extended Life CoolantYellow Nitrite Free OAT | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Fits: all 2026 X7 engines | 904685 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HT-12 Green1 Gallon | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Fits: all 2026 X7 engines | 78065 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Heavy Duty | View on Amazon |
This table covers the engine coolants and antifreeze formulations specified for this cooling system. Typical signs include a rising temperature gauge, rusty or sludged coolant, or a heater that blows cold. Use the chemistry named in the notes. Mixing silicate, OAT and HOAT formulas can gel in the radiator.
3 Coolant / Antifreeze parts are listed for the 2026 BMW X7, from PRESTONE and VALVOLINE. All of them fit every engine offered in the 2026 X7.
The Heavy Duty section lists 1 option from PRESTONE — rated for severe service. PRESTONE AFC12100 is listed in this group.
The Standard Replacement section lists 1 option from VALVOLINE — built to original-equipment specification. VALVOLINE 904685 is listed in this group.
1 ungrouped part is not assigned to a grade, with the same engine-level match.
Listed part numbers: PRESTONE AFC12100, VALVOLINE 904685 and PRESTONE 78065.
Coolant Reservoir
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| REIN Fits: all 2026 X7 engines | EPT0277 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Intercoolerwithout Cap | View on Amazon |
| REIN Fits: all 2026 X7 engines | EPK0277 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes OE cap and fluid level sensor | View on Amazon |
This table covers the overflow / expansion tanks that hold extra coolant.
2 Coolant Reservoir parts for the 2026 BMW X7 come from REIN. Every part fits both the 3.0L L6 Turbocharged and the 4.4L V8 Turbocharged.
Listed part numbers: REIN EPT0277 and REIN EPK0277.
Coolant Reservoir Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Fits: all 2026 X7 engines | T76 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Standard | View on Amazon |
| MOTORAD Fits: 3.0L L6 Turbocharged | T64 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Standard | View on Amazon |
| MOTORAD Fits: 4.4L V8 Turbocharged | T65 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Standard | View on Amazon |
| REIN Fits: 3.0L L6 Turbocharged | CPE0035 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | RADIATOR | View on Amazon |
| REIN Fits: all 2026 X7 engines | CPE0078 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Intercooler | View on Amazon |
| REIN Fits: 4.4L V8 Turbocharged | CPE0034 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | RADIATOR | View on Amazon |
This table covers the caps on the overflow / expansion tank. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable.
6 Coolant Reservoir Cap parts for the 2026 BMW X7 come from 2 brands — MOTORAD and REIN. 2 parts fit every engine; the other 4 are engine-specific.
Listed part numbers: MOTORAD T76, MOTORAD T64 and MOTORAD T65, plus the other parts above.
Radiator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CSF Fits: 3.0L L6 Turbocharged | 4009 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Auxiliary Radiator | View on Amazon |
| CSF Fits: 3.0L L6 Turbocharged | 4011 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Low Temperature Radiator | View on Amazon |
| UAC Fits: 3.0L L6 Turbocharged | RA14004C | 🇺🇸 US 🇨🇦 CA | Auxiliary Radiator | View on Amazon |
This table covers the radiators that dump engine heat to airflow through the core. Typical signs include overheating in traffic, a wet core, or coolant that disappears with no puddle. Replace the cap if it cannot hold the rated pressure, and bleed the system after the swap.
3 Radiator parts are listed for the 2026 BMW X7, from CSF and UAC.
This group includes CSF 4009, CSF 4011 and UAC RA14004C.
Radiator Fan Assembly
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TYC Fits: 3.0L L6 Turbocharged | 625170 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the fan assemblies (and clutches, where listed) that pull air through the radiator.
This group shows a single part: TYC 625170.
Temperature Sender / Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NISSENS Fits: all 2026 X7 engines | 207110 | 🇺🇸 US 🇨🇦 CA | Location-Cylinder Head | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2026 X7 engines | TS658 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Gauge | View on Amazon |
This table covers the senders that report coolant temperature to the gauge or ECU. Typical signs include a gauge that sits on empty or overheat, or a lamp that does not match what the engine is doing. Rule out the cluster and the wiring before replacing the sender.
2 Temperature Sender / Sensor parts are listed for the 2026 BMW X7, from NISSENS and STANDARD MOTOR PRODUCTS. All of them fit every engine offered in the 2026 X7.
This group includes NISSENS 207110 and STANDARD MOTOR PRODUCTS TS658.
Thermostat
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Fits: 3.0L L6 Turbocharged | TA3156 | 🇺🇸 US 🇨🇦 CA | Includes Seal | View on Amazon |
| REIN Fits: 4.4L V8 Turbocharged | CTA0028 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the thermostats that open the coolant circuit at the specified temperature. Typical signs include slow warm-up, a gauge that climbs in traffic, or heat that never quite arrives. Replace the housing gasket with the thermostat and bleed the system so a trapped air pocket does not cook the new part.
2 Thermostat parts for the 2026 BMW X7 come from 2 brands — MOTORAD and REIN.
Part numbers include MOTORAD TA3156 and REIN CTA0028.
Buying Cooling System Parts for a 2026 BMW X7
On this vehicle, the cooling system system keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses.
- Match the engine first. Some cooling system parts fit every engine; others are engine-specific. Each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Coolant Reservoir Cap and Coolant / Antifreeze .
Frequently Asked Questions
How many cooling system parts fit the 2026 BMW X7?
Our catalog currently lists 19 cooling system parts for the 2026 BMW X7 across 7 subcategories and 9 brands, covering both the 3.0L L6 Turbocharged and the 4.4L V8 Turbocharged. Each part is matched to the engine(s) it fits.
Do cooling system parts differ between 2026 BMW X7 engines?
Some do. 9 parts fit every engine; the other 10 are engine-specific. Each row (and the filter at the top) shows which. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of cooling system problems on a 2026 BMW X7?
Common symptoms include a rising temperature gauge in traffic, sweet-smelling steam, crusty deposits around hose clamps, or a heater that blows cold. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2026 BMW X7 was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2026 BMW X7?
First match the engine — each row shows which engine(s) the part fits. Then replace coolant with the exact specification the manufacturer calls for — mixing chemistries can gel and block small passages. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2026 BMW X7
Cooling System Parts for Other BMW X7 Years
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