The 2018 Chevrolet Cheyenne has 74 cooling system parts with verified fitment on this page — 15 part types and 18 brands, covering both the 5.3L V8 and the 6.2L V8. Each part includes a manufacturer part number and application notes.
On the 2018 Chevrolet Cheyenne, 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. Most of the listed parts are Coolant / Antifreeze (17 parts), Water Pump (15 parts) and Radiator Fan Assembly (7 parts). The other 12 part types cover the remaining 35 parts.
The 2018 Chevrolet Cheyenne was sold with both the 5.3L V8 and the 6.2L V8. 47 parts fit every engine; the other 27 are engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2018 Chevrolet Cheyenne cooling system parts are GPD (9 parts), PRESTONE (7 parts) and GATES (7 parts), plus 15 more brands. Quality grades include Economy, Standard Replacement and Premium.
8 parts on this 2018 Chevrolet Cheyenne page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including FVP MV5050GAL (Coolant / Antifreeze) and SKP SK34836 (Thermostat). Click any part number to see every vehicle that part fits.
Coolant / Antifreeze
Compatible With All Colors
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Fits: all 2018 Cheyenne engines | AF3055 | 🇲🇽 MX | Prime YellowAll Vehicles | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Popular Fits: all 2018 Cheyenne engines | MV5050GAL | 🇲🇽 MX | Extended LifeAll Makes / All Models | View on Amazon |
| PEAK Fits: all 2018 Cheyenne engines | BQA1GAL | 🇲🇽 MX | Blue Mountain Long LifeAll Vehicle | View on Amazon |
| PRESTONE Fits: all 2018 Cheyenne engines | AF3100 | 🇲🇽 MX | Prime Yellow - All VehiclesExtended Life | View on Amazon |
| VALVOLINE Fits: all 2018 Cheyenne engines | 719009 | 🇲🇽 MX | Multi-Vehicle Yellow1 Gallon | View on Amazon |
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Fits: all 2018 Cheyenne engines | AFC12100 | 🇲🇽 MX | Command Nitrite Free Extended Life CoolantYellow Nitrite Free OAT | View on Amazon |
| VALVOLINE Fits: all 2018 Cheyenne engines | 846439 | 🇲🇽 MX | HD Nitrite Free Extended Life Yellow1 Gallon | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular Fits: all 2018 Cheyenne engines | AF2100 | 🇲🇽 MX | All Vehicles10yr/300k mi | View on Amazon |
| PEAK Fits: all 2018 Cheyenne engines | PKP1GAL | 🇲🇽 MX | All Vehicles Antifreeze1 Gallon | View on Amazon |
| PEAK Fits: all 2018 Cheyenne engines | PXA1GAL | 🇲🇽 MX | 1 GallonGlobal Lifetime | View on Amazon |
| PRESTONE Fits: all 2018 Cheyenne engines | AFMAX | 🇲🇽 MX | Max Universal1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: all 2018 Cheyenne engines | 105027 | 🇲🇽 MX | DEX-Cool Extended LifeDexcool (with DE-Ionized Water) (with Bitterant) 1 Gallon | View on Amazon |
| VALVOLINE Popular Fits: all 2018 Cheyenne engines | ZXEL1 | 🇲🇽 MX | Dex-Cool Orange1 Gallon | View on Amazon |
| AISIN Fits: all 2018 Cheyenne engines | ACD005 | 🇲🇽 MX | OrangeOAT | View on Amazon |
| FVP Fits: all 2018 Cheyenne engines | DEX5050GAL | 🇲🇽 MX | Extended Life Blend1 Gallon | View on Amazon |
| PRESTONE Fits: all 2018 Cheyenne engines | AF3400 | 🇲🇽 MX | Prime OrangeOrange Compatible | View on Amazon |
| PRESTONE Fits: all 2018 Cheyenne engines | AF850 | 🇲🇽 MX | DEX-Cool Extended Life1 Gallon | 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.
17 Coolant / Antifreeze parts for the 2018 Chevrolet Cheyenne come from 6 brands — PRESTONE, PEAK, VALVOLINE and 3 other brands. The "Popular" part is FVP MV5050GAL. Every part fits both the 5.3L V8 and the 6.2L V8.
In the Compatible With All Colors grade, PRESTONE supplies 1 part: grouped under the catalog's "Compatible With All Colors" designation — the notes column spells out what sets them apart. A representative part number is PRESTONE AF3055.
The Economy section lists 4 options from FVP, PEAK, PRESTONE and 1 other brand — the catalog's value-priced group. FVP MV5050GAL is listed in this group.
In the Heavy Duty grade, PRESTONE and VALVOLINE supply 2 parts: rated for severe service. A representative part number is PRESTONE AFC12100.
In the Premium grade, PRESTONE and PEAK supply 4 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is PRESTONE AF2100.
In the Standard Replacement grade, PRESTONE, ACDELCO, VALVOLINE and 2 other brands supply 6 parts: built to original-equipment specification. A representative part number is ACDELCO 105027.
Coolant Hose / Pipe
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Fits: all 2018 Cheyenne engines | 12117 | 🇲🇽 MX | Molded | View on Amazon |
| GATES Fits: all 2018 Cheyenne engines | 51907 | 🇲🇽 MX | Molded | View on Amazon |
This table covers the hard pipes and extra hoses in the coolant circuit.
2 Coolant Hose / Pipe parts for the 2018 Chevrolet Cheyenne come from GATES. Every part fits both the 5.3L V8 and the 6.2L V8.
Listed part numbers: GATES 12117 and GATES 51907.
Coolant Hose / Pipe Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: all 2018 Cheyenne engines | 050410 | 🇲🇽 MX | Oil Filter HousingLT Model or LTZ Model | View on Amazon |
This table covers the seals at the Coolant Hose / Pipe. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
One part is listed for the 2018 Chevrolet Cheyenne — ELRING 050410.
Coolant Reservoir
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: all 2018 Cheyenne engines | 603973 | 🇲🇽 MX | View on Amazon | |
| GPD Fits: all 2018 Cheyenne engines | 2411170 | 🇲🇽 MX | View on Amazon | |
| SKP Fits: all 2018 Cheyenne engines | SK603973 | 🇲🇽 MX | View on Amazon |
This table covers the overflow / expansion tanks that hold extra coolant.
3 Coolant Reservoir parts are listed for the 2018 Chevrolet Cheyenne, from DORMAN, GPD and SKP. All of them fit every engine offered in the 2018 Cheyenne.
Part numbers include DORMAN 603973, GPD 2411170 and SKP SK603973.
Coolant Reservoir Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: all 2018 Cheyenne engines | 54218 | 🇲🇽 MX | View on Amazon | |
| GATES Fits: 5.3L V8 | 31532 | 🇲🇽 MX | OE Type | View on Amazon |
| MOTORAD Fits: 5.3L V8 | T46 | 🇲🇽 MX | Standard | View on Amazon |
| SKP Fits: all 2018 Cheyenne engines | SK54218 | 🇲🇽 MX | 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.
4 Coolant Reservoir Cap parts are listed for the 2018 Chevrolet Cheyenne, from DORMAN, GATES, MOTORAD and 1 other brand. 2 parts fit every engine; the other 2 are engine-specific.
Part numbers include DORMAN 54218, GATES 31532 and MOTORAD T46, among others listed above.
Cooling System Tester Adapter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Fits: 5.3L V8 | 3128 | 🇲🇽 MX | StandardRadiator Cap Adapter | View on Amazon |
| MOTORAD Fits: 5.3L V8 | 3127 | 🇲🇽 MX | Standard | View on Amazon |
This table covers the adapters used to pressure-test this cooling system.
2 Cooling System Tester Adapter parts for the 2018 Chevrolet Cheyenne come from MOTORAD.
This group includes MOTORAD 3128 and MOTORAD 3127.
Radiator
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD Fits: 5.3L V8 | 13723C | 🇲🇽 MX | with One Cooler | View on Amazon |
| GPD Fits: 5.3L V8 | 13398C | 🇲🇽 MX | with Two Coolerswith Factory Tow Package | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AGILITY Fits: 5.3L V8 | 8013398 | 🇲🇽 MX | with Heavy Duty Trailer PackageTransmission Mfr Code: 6L80-E | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD Fits: 6.2L V8 | 13723C | 🇲🇽 MX | with One Cooler | View on Amazon |
| GPD Fits: 6.2L V8 | 13398C | 🇲🇽 MX | with Two Coolers | 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.
5 Radiator parts for the 2018 Chevrolet Cheyenne come from 2 brands — GPD and AGILITY.
The Economy section: 2 options from GPD. GPD 13723C is listed in this group.
Standard Replacement: 1 part, from AGILITY. A representative part number is AGILITY 8013398.
2 further parts sit outside the graded sections, with the same engine-level match.
Part numbers include GPD 13723C, GPD 13398C and AGILITY 8013398, among others listed above.
Radiator Fan Assembly
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 6.2L V8 | 621619 | 🇲🇽 MX | View on Amazon | |
| GPD Fits: 6.2L V8 | 2811983 | 🇲🇽 MX | View on Amazon | |
| SKP Fits: 6.2L V8 | SK621619 | 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS Fits: 6.2L V8 | 76379 | 🇲🇽 MX | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 5.3L V8 | 621619 | 🇲🇽 MX | View on Amazon | |
| GPD Fits: 5.3L V8 | 2811983 | 🇲🇽 MX | View on Amazon | |
| SKP Fits: 5.3L V8 | SK621619 | 🇲🇽 MX | View on Amazon |
This table covers the fan assemblies (and clutches, where listed) that pull air through the radiator.
7 Radiator Fan Assembly parts are listed for the 2018 Chevrolet Cheyenne, from DORMAN, GPD, SKP and 1 other brand.
Economy: 3 parts, from DORMAN, GPD and SKP. A representative part number is DORMAN 621619.
The Standard Replacement section: 1 option from FOUR SEASONS. FOUR SEASONS 76379 is listed in this group.
3 ungrouped parts are not assigned to a grade, with the same engine-level match.
This group includes DORMAN 621619, GPD 2811983 and SKP SK621619 and the remaining parts above.
Radiator Hose
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: all 2018 Cheyenne engines | 22805L | 🇺🇸 US 🇨🇦 CA | Professional / GoldMolded | View on Amazon |
| ACDELCO Fits: all 2018 Cheyenne engines | 27171X | 🇺🇸 US 🇨🇦 CA | Professional / GoldMolded | View on Amazon |
| GATES Fits: all 2018 Cheyenne engines | 24342 | 🇲🇽 MX | MoldedMaterial: Epdm, Plastic | View on Amazon |
| GATES Fits: all 2018 Cheyenne engines | 24338 | 🇲🇽 MX | MoldedMaterial: Epdm, Plastic | View on Amazon |
This table covers the upper, lower and connecting hoses between radiator, engine and reservoir. Typical signs include swelling, cracks, a soft spot, or a leak at a clamp. Replace adjacent aged hoses while the system is drained — they share the same heat cycle.
4 Radiator Hose parts are listed for the 2018 Chevrolet Cheyenne, from ACDELCO and GATES. All of them fit every engine offered in the 2018 Cheyenne.
Listed part numbers: ACDELCO 22805L, ACDELCO 27171X and GATES 24342, plus the other parts above.
Temperature Sender / Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD Fits: all 2018 Cheyenne engines | 1712489 | 🇲🇽 MX | with 2 Terminal(s)with M12 x 1.5 Thread | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS Fits: all 2018 Cheyenne engines | 37858 | 🇲🇽 MX | 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 for the 2018 Chevrolet Cheyenne come from 2 brands — GPD and FOUR SEASONS. Every part fits both the 5.3L V8 and the 6.2L V8.
The Economy section: 1 option from GPD. GPD 1712489 is listed in this group.
Standard Replacement: 1 part, from FOUR SEASONS. A representative part number is FOUR SEASONS 37858.
This group includes GPD 1712489 and FOUR SEASONS 37858.
Thermostat
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular Fits: all 2018 Cheyenne engines | SK34836 | 🇲🇽 MX | Includes Housing, Seal | View on Amazon |
| AUTOTECNICA Fits: all 2018 Cheyenne engines | GM0720814 | 🇲🇽 MX | Includes Housing | View on Amazon |
| DORMAN Fits: all 2018 Cheyenne engines | 9022090 | 🇲🇽 MX | Includes Housing | View on Amazon |
| SKP Fits: all 2018 Cheyenne engines | SK9022090A | 🇲🇽 MX | Includes Housing | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Popular Fits: all 2018 Cheyenne engines | 815207 | 🇲🇽 MX | Includes Housing, Seal | View on Amazon |
| FOUR SEASONS Fits: all 2018 Cheyenne engines | 86006 | 🇲🇽 MX | Includes HousingPlastic | View on Amazon |
| GATES Fits: all 2018 Cheyenne engines | 34836 | 🇲🇽 MX | 207 DegreeIntegrated Housing Thermostat | 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.
7 Thermostat parts are listed for the 2018 Chevrolet Cheyenne, from SKP, AUTOTECNICA, DORMAN and 3 other brands. SKP SK34836 carries the "Popular" badge. All of them fit every engine offered in the 2018 Cheyenne.
Economy: 4 parts, from SKP, AUTOTECNICA and DORMAN. A representative part number is SKP SK34836.
The Standard Replacement section: 3 options from MOTORAD, FOUR SEASONS and GATES. MOTORAD 815207 is listed in this group.
This group includes SKP SK34836, AUTOTECNICA GM0720814 and DORMAN 9022090 and the remaining parts above.
Thermostat / Thermostat Housing / Water Outlet Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: all 2018 Cheyenne engines | 619630 | 🇲🇽 MX | LT Model or LTZ ModelThermostat Seal | View on Amazon |
This table covers the seals at the thermostat housing and water outlet. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
This group shows a single part: ELRING 619630.
Thermostat Housing / Water Outlet
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD Fits: all 2018 Cheyenne engines | 8241554 | 🇲🇽 MX | Water Outlet | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Fits: all 2018 Cheyenne engines | CH5945 | 🇲🇽 MX | Water Outlet | View on Amazon |
This table covers the housings and outlets the thermostat sits in.
2 Thermostat Housing / Water Outlet parts are listed for the 2018 Chevrolet Cheyenne, from GPD and MOTORAD. All of them fit every engine offered in the 2018 Cheyenne.
Economy: 1 part, from GPD. A representative part number is GPD 8241554.
The Standard Replacement section: 1 option from MOTORAD. MOTORAD CH5945 is listed in this group.
Part numbers include GPD 8241554 and MOTORAD CH5945.
Water Pump
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Fits: 5.3L V8 | US8918 | 🇲🇽 MX | View on Amazon | |
| US MOTOR WORKS Fits: 5.3L V8 | US8918 | 🇲🇽 MX | View on Amazon | |
| US MOTOR WORKS Fits: 5.3L V8 | US8918T | 🇲🇽 MX | Includes Pump, Thermostat, Thermostat Housing | View on Amazon |
| US MOTOR WORKS Fits: 5.3L V8 | US8918TS | 🇲🇽 MX | Includes Pump, Thermostat, Thermostat Housing, Temperature Sensor | View on Amazon |
| US MOTOR WORKS Fits: 5.3L V8 | US89182 | 🇲🇽 MX | Pump and back housing | View on Amazon |
| US MOTOR WORKS Fits: 5.3L V8 | US89182TS | 🇲🇽 MX | Includes Pump, Back Housing, Thermostat, Temperature Sensor, Thermostat Housing | View on Amazon |
| WJB / INMOTION PARTS Fits: all 2018 Cheyenne engines | WU6738 | 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AISIN Popular Fits: all 2018 Cheyenne engines | WPGM606V | 🇲🇽 MX | View on Amazon | |
| GATES Popular Fits: all 2018 Cheyenne engines | 42200 | 🇲🇽 MX | without Housing | View on Amazon |
| FVP Fits: 6.2L V8 | 1303020 | 🇲🇽 MX | Pump Only | View on Amazon |
| GMB Fits: all 2018 Cheyenne engines | 1303020 | 🇲🇽 MX | Pump Only | View on Amazon |
| GMB Fits: 6.2L V8 | 1303020AT | 🇲🇽 MX | Includes Housing and Thermostat | View on Amazon |
| GMB Fits: 6.2L V8 | 1303020ATS | 🇲🇽 MX | Includes Housing, Thermostat and Coolant Temperature Sensor | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Fits: 6.2L V8 | 1303020AT | 🇲🇽 MX | Includes Housing and Thermostat | View on Amazon |
| FVP Fits: 6.2L V8 | 1303020ATS | 🇲🇽 MX | Includes Housing, Thermostat and Coolant Temperature Sensor | View on Amazon |
This table covers the pumps that circulate coolant through the block and radiator. Typical signs include coolant at the weep hole, pulley play, or a growl from the front of the engine. Replace the thermostat and refill with the specified coolant whenever the pump comes off.
15 Water Pump parts are listed for the 2018 Chevrolet Cheyenne, from US MOTOR WORKS, FVP, GMB and 3 other brands. AISIN WPGM606V carries the "Popular" badge. 4 parts fit every engine; the other 11 are engine-specific.
Economy: 7 parts, from US MOTOR WORKS, FVP and WJB / INMOTION PARTS. A representative part number is FVP US8918.
The Standard Replacement section: 6 options from GMB, AISIN, GATES and 1 other brand. AISIN WPGM606V is listed in this group.
2 ungrouped parts are not assigned to a grade, with the same engine-level match.
Water Pump Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: all 2018 Cheyenne engines | 601440 | 🇲🇽 MX | frontal sidedLT Model or LTZ Model | View on Amazon |
| ELRING Fits: all 2018 Cheyenne engines | 454300 | 🇲🇽 MX | Number of Mounting Bores: 6 | View on Amazon |
This table covers the gaskets between the water pump and the block or housing. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
2 Water Pump Gasket parts for the 2018 Chevrolet Cheyenne come from ELRING. Every part fits both the 5.3L V8 and the 6.2L V8.
Part numbers include ELRING 601440 and ELRING 454300.
Buying Cooling System Parts for a 2018 Chevrolet Cheyenne
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 / Antifreeze and Water Pump .
Frequently Asked Questions
How many cooling system parts fit the 2018 Chevrolet Cheyenne?
Our catalog currently lists 74 cooling system parts for the 2018 Chevrolet Cheyenne across 15 subcategories and 18 brands, covering both the 5.3L V8 and the 6.2L V8. Each part is matched to the engine(s) it fits.
Do cooling system parts differ between 2018 Chevrolet Cheyenne engines?
Some do. 47 parts fit every engine; the other 27 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 2018 Chevrolet Cheyenne?
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 2018 Chevrolet Cheyenne 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 2018 Chevrolet Cheyenne?
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 2018 Chevrolet Cheyenne
Cooling System Parts for Other Chevrolet Cheyenne Years
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