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2018 Chevrolet Silverado 1500 · Water pump replacement
2018 Chevrolet Silverado 1500 water pump replacement cost
A 2018 Chevrolet Silverado 1500 water pump replacement typically costs $280 to $665 at an independent shop, parts and labor included across its engine options. The water pump itself runs $85 to $190, and the job takes 2 to 4 hours. Prices updated September 2026.
Estimated cost, selected engine
$280 to $630
Charlotte, NC area
Prices updated September 2026
Which engine? They price differently, so pick yours for a closer number.
Water pump (part)
$85 to $190
Labor (2 to 4 hours)
$170 to $415
Dex-Cool coolant + shop supplies
$25 to $60
2018 Chevrolet Silverado 1500 water pump replacement: parts and labor
Labor runs $170 to $415 (the job takes 2 to 4 hours at typical independent-shop rates), and the water pump itself typically costs $85 to $190 for the 2018 Chevrolet Silverado 1500, plus $25 to $60 in dex-cool coolant + shop supplies. Prices updated September 2026.
| Engine | Parts | Labor | Estimated total |
|---|---|---|---|
| 4.3L V6 | $85 to $190 | $170 to $380 (1.5 to 2.5 hrs) | $280 to $630 |
| 5.3L V8 | $85 to $190 | $180 to $400 (1.5 to 2.5 hrs) | $290 to $650 |
| 6.2L V8 | $85 to $190 | $185 to $415 (1.5 to 2.5 hrs) | $295 to $665 |
Coverage note: None excluded. The 2018 eAssist mild hybrid (new nationwide that year) uses the same L83 5.3L base engine and the same belt-driven water pump, so it is covered by the 5.3L row rather than excluded. No diesel existed in the 2018 half-ton lineup.
RepairPal ($956 to $1,591) and its parts line of $761 to $1,305 reflect the GM pump plus housing/crossover assembly at dealer list, essentially a dealer-style ticket; a dealer parts counter quote seen on the owner forum was $364 pump + $85 inlet + $18 bolts before labor. KBB's fair repair range of $375 to $787 and YourMechanic's ~$720 mobile quote for the same job bracket the realistic middle. An independent shop using an $84 to $125 ACDelco Gold or Gates pump should land near $300 to $650; going full OEM at a dealer roughly doubles the parts money for the same belt-driven pump.
Where these numbers come from
- Estimate ranges: a hand-verified research pass for this exact vehicle and repair, cross-referenced across 12 independent sources (parts retailers, labor guides, and published shop pricing), completed September 2026.
- Recall and complaint data: NHTSA (National Highway Traffic Safety Administration) records for the 2018 Chevrolet Silverado 1500 specifically, filtered to cooling system relevance and refreshed daily from the federal API.
- Local prices: real, accepted quotes from verified Fixxr marketplace jobs, published per metro once five verified jobs of this type have closed. Never estimates dressed up as transactions.
Not included in the estimate: Broken or seized pump bolt extraction from the block (the big wildcard on this engine family), Thermostat and plastic inlet/crossover housing replacement while in there (~$60 to $150 more), Radiator hoses, radiator, or a full cooling system flush beyond drain and refill, Dealer pricing with the OEM pump plus housing assembly at list, Diagnosis time, taxes, and shop fees.
What actually goes wrong on this exact vehicle
Federal safety data for the 2018 Chevrolet Silverado 1500, filtered to the cooling system specifically.
0
cooling system recalls
9
cooling system owner complaints
Real owner report, verbatim from NHTSA:
“The contact owns a 2018 Chevrolet Silverado 1500. The contact stated that while driving approximately 40 MPH, the low oil warning light illuminated. The vehicle was taken to Pepboys, and the contact was informed that the engine was a quart and a half low on engine oil. The mechanic determined that a gasket was deteriorating, and the seal had fractured, causing the oil leak. The vehicle was taken to the dealer, and the contact was informed that the engine and transmission needed to be removed to replace the gasket. The vehicle was not repaired. The manufacturer was informed of the failure and confirmed the repair was not covered under warranty. The manufacturer opened a case for the failure. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 84,000.”
Worth knowing: the radiator is one of the most common causes of overheating, alongside the thermostat, water pump, and hoses. Get the real source confirmed before you approve any repair, so you fix the part that actually failed.
Recall fixes are free at the dealer. Everything else deserves a fair price.
Source: NHTSA (National Highway Traffic Safety Administration), recalls and complaints for the 2018 Chevrolet Silverado 1500. Refreshed periodically.
Not sure what’s wrong?
Overheating can be the radiator, thermostat, water pump, or a leak. Describe what your car is doing and our free diagnostic tool narrows it down before you spend a dollar.
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Get connected with a mechanicHow your cooling system works
The water pump is one piece of a loop. Here is how the parts work together, so you understand exactly what your car is doing and why.
Found a puddle? What the color tells you
Bright green
Classic coolant leak. Find the source before it overheats.
Orange / pink
What most modern vehicles use (OAT). Same urgency as green.
Rusty brown
Old, corroded coolant. Overdue for a flush.
Milky / oily
Coolant mixing with oil, like a coffee milkshake. Can mean a head gasket. Serious.
What a water pump replacement is like on the 2018 Chevrolet Silverado 1500
All three 2018 Silverado 1500 engines are Gen V EcoTec3 (LV3 4.3L, L83 5.3L, L86 6.2L) and they share one external belt-driven water pump design, so the engine badge barely moves this bill. Gates catalogs one pump (42200) for the 4.3L, 5.3L, and 6.2L across 2014 to 2018, and AutoZone stocks one Duralast number (US8918) for the truck. The small spread between the rows above reflects accessory and trim packaging differences (the 6.2L only came on LTZ and High Country with the 8-speed and max cooling gear), not a different pump; 2WD vs 4WD makes no difference on this job.
Access on the K2XX truck is friendlier than on the older GMT900 Silverados because the 2018 uses electric cooling fans, so there is no clutch fan to wrestle off the pump snout. The job is drain the Dex-Cool, release the serpentine belt tensioner, pull the upper fan shroud for room, and unbolt the pump from the front of the block. Book time runs about 1.5 to 1.9 hours and RepairPal shows labor of only $195 to $286 on this truck; most independents bill 2.0 to 2.5 hours at 2026 rates of $110 to $165 per hour to cover the refill and burp.
Quality aftermarket pumps for this truck are cheap: RockAuto lists GMB at $58.79, Gates 42200 at $64.79, Dayco at $65.79, Aisin at $77.89, and the ACDelco Gold 252-1027 kit (GM 19382527) at $83.79, with the same ACDelco pump at $124 to $125 from CarParts.com and FinditParts and the lifetime-warranty Duralast US8918 at $121.99 at AutoZone. A shop installing one of these with normal markup lands in the $85 to $190 parts band above. On silveradosierra.com an owner was quoted about $500 all-in by an independent garage for this exact job, which sits right inside our range.
The classic failure on these Gen V truck pumps is coolant seeping from the weep hole or the pump gaskets from roughly 80k to 150k miles; forum wisdom notes the gaskets leak partly because the pump is large and its bolts are comparatively small and stretch. Those same small bolts are the one real risk in this job: they are known to seize and snap in the block on rust-belt trucks, and a broken bolt extraction turns a 2 hour job into a half day. Every figure above assumes the bolts come out clean.
Do not be scared by RepairPal's $956 to $1,591 headline for this truck. Its parts line of $761 to $1,305 is pricing the GM pump plus the housing and crossover pieces at dealer list; a Chevy dealer parts counter quoted a forum member $364 for the pump plus $85 for the inlet and $18 for two bolts. On the Gen V the thermostat sits in the inlet housing that bolts to the pump, so many shops add a $25 to $45 thermostat while they are in there; that is a legitimate add-on, not padding. The 2018-only nationwide eAssist 5.3L uses the same L83 base engine and pump, so the 5.3L row covers it.
Estimate note: these are researched independent-shop ranges, not a guaranteed quote. The only exact number is one from a shop that has seen your car.
Frequently asked questions
How much does a 2018 Chevrolet Silverado 1500 water pump replacement cost?
A 2018 Chevrolet Silverado 1500 water pump replacement typically runs $280 to $665 at an independent shop, parts and labor included. The water pump itself is $85 to $190, labor makes up most of the rest, and the job takes 2 to 4 hours.Why does the price change with the engine?
The 2018 Chevrolet Silverado 1500 came with more than one engine, and they do not share the same part or the same access. A tighter engine bay or extra teardown adds labor hours, and the part price moves too. Sites that show one national number flatten that out. Pick your engine on the estimate above for a closer figure.Is it always the water pump when my Chevrolet overheats?
No. Overheating can also be a stuck thermostat, a clogged or leaking radiator, a failed cooling fan, or simply low coolant. What points specifically at the water pump is coolant dripping from the weep hole under the pump, a grinding or whining noise from the front of the engine, or wobble in the pump pulley. Because these causes look identical from the driver's seat, get a real diagnosis before approving the repair.Can I drive my Chevrolet with a bad water pump?
Only far enough to get it looked at. A failing pump stops circulating coolant, the engine overheats, and driving an overheating Chevrolet risks a warped cylinder head or a blown head gasket, a $3,000 to $8,000 repair on top of the pump. If the temperature gauge climbs or you see steam, pull over and let it cool. If it keeps overheating, tow it.Should the thermostat be replaced at the same time?
Usually yes, and most shops will suggest it. The cooling system is already drained and opened for the water pump, so the thermostat adds only a small part cost with little extra labor, and a stuck thermostat is one of the most common follow-on failures. Replacing both in one visit avoids paying the teardown labor twice.How long does a water pump last?
Most factory water pumps last roughly 100,000 to 150,000 miles. The usual failures are the shaft seal, which starts seeping coolant from the weep hole, and the bearing, which gets noisy before it lets go. Regular coolant changes protect the seal and are the cheapest way to extend pump life.Are there recalls on the 2018 Chevrolet Silverado 1500?
Yes, NHTSA lists 7 recalls for the 2018 Chevrolet Silverado 1500. Recall repairs are done free of charge at a franchised dealer for that brand, so it is worth checking your VIN before paying a shop for related work.
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