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2018 Toyota Tundra · Water pump replacement
2018 Toyota Tundra water pump replacement cost
A 2018 Toyota Tundra water pump replacement typically costs $415 to $805 at an independent shop, parts and labor included across its engine options. The water pump itself runs $100 to $190, and the job takes 2 to 4 hours. Prices updated September 2026.
Estimated cost, selected engine
$415 to $805
Charlotte, NC area
Prices updated September 2026
Which engine? They price differently, so pick yours for a closer number.
Water pump (part)
$100 to $190
Labor (2 to 4 hours)
$275 to $525
Fluids + supplies
$40 to $90
2018 Toyota Tundra water pump replacement: parts and labor
Labor runs $275 to $525 (the job takes 2 to 4 hours at typical independent-shop rates), and the water pump itself typically costs $100 to $190 for the 2018 Toyota Tundra, plus $40 to $90 in toyota pink sllc coolant (2-3 gal) plus shop supplie. Prices updated September 2026.
| Engine | Parts | Labor | Estimated total |
|---|---|---|---|
| 4.6L V8 (1UR-FE) | $100 to $190 | $275 to $525 (2.5 to 3.5 hrs) | $415 to $805 |
| 5.7L V8 (3UR-FE) | $100 to $190 | $275 to $525 (2.5 to 3.5 hrs) | $415 to $805 |
Coverage note: The 5.7L flex-fuel variant (3UR-FBE) is folded into the 5.7L row because it uses the identical water pump and cooling system, and no V6, diesel, or hybrid powertrain was offered on the 2018 Tundra; the TRD Pro shares the standard 5.7L cooling hardware.
Dealer pricing for this job runs about $1,083 to $1,205 (KBB fair-repair range for a 2018 Tundra CrewMax in the Charlotte area), driven by $650-plus in labor at dealership rates and the genuine pump billed near its $207 to $215 MSRP. The premium buys the Toyota box and warranty stamp, but the genuine pump is manufactured by AISIN, the same company whose aftermarket unit sells for $120 to $180.
Where these numbers come from
- Estimate ranges: a hand-verified research pass for this exact vehicle and repair, cross-referenced across 10 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 Toyota Tundra 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: Diagnosis time (cooling system pressure test or dye trace to confirm the pump is the leaker), Commonly bundled parts: thermostat, upper and lower radiator hoses, serpentine belt, or a seized fan clutch, A full coolant system flush beyond the drain-and-refill the pump job requires, Sales tax, shop supply fees, and coolant disposal charges, Any radiator or fan shroud hardware that breaks during removal on high-mileage trucks.
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 Toyota Tundra
The reason this job stays affordable on a 2018 Tundra is that both i-Force V8s are timing-chain engines with an externally mounted, belt-driven water pump. The pump sits on the front of the block behind the mechanical fan, so the procedure is drain the coolant, pull the upper fan shroud, unbolt the fan clutch from the fan bracket, release the serpentine belt, and unbolt the pump. Book time runs about 2.5 to 3.4 hours; a Toyota master tech on JustAnswer quoted 2.7 hours flat for a 2017 5.7, and owners report shops finishing in about 3 hours of actual wrench time. The one fight in the job is breaking loose the four fan clutch nuts, which usually wants a fan clutch wrench or an impact.
Big quotes for this repair are often carryover pricing from older Tundras. On the 2000-2009 4.7L 2UZ-FE, the pump lives behind the timing belt and the job legitimately runs 5 to 7 hours. The 2018 truck's UR engines buried nothing; if a shop quotes 6-plus hours on a 2018, they are reading the wrong line in the labor guide or padding. Also note the engine choice does not change the bill: Toyota lists the same genuine pump assemblies (16100-39555, MSRP $214.56, and counter number 16100-09491, MSRP $206.74) as fitting both the 4.6L and 5.7L, so parts and labor are effectively identical across the two V8s.
Failure mode is classic and easy to self-diagnose. The pump has a weep hole at the bottom, and the first sign is dried pink coolant crust or streaks below it, since Toyota's Super Long Life coolant leaves a distinctive pink-white residue. Toyota's own service position distinguishes light dried seepage, which can be normal, from an active drip or a growling pump bearing, which means replacement. Owner reports on Tundra forums cluster failures loosely around 90,000 to 150,000 miles, and plenty of 5.7s go well past that; this is not considered a chronic weak point on the 3UR-FE. NHTSA shows no recall or service campaign touching the water pump on the 2018 Tundra.
On parts, the honest move is the AISIN box. AISIN is Toyota's OE water pump supplier, and its aftermarket part for these engines (WPT-190 for the 5.7 application) runs roughly $120 to $180 across Amazon, eBay, Walmart, and parts warehouses, which is the same manufacturer as the $207 to $215 list-price dealer part for roughly half the counter price. Gates units run about $105 to $115 and GMB less. The $43 to $46 no-name pumps online are the trap; KBB specifically warns bargain pumps can fail in around 30,000 miles versus 100,000-plus for quality units, and on this engine the pump is cheap enough in labor that nobody should gamble to save $80.
Published estimator numbers bracket the real-world figure. RepairPal pegs the 2018 Tundra at $698 to $877 total, but that assumes near-OEM parts pricing of $369 to $393 and big-city door rates. YourMechanic's 2018 5.7L mobile estimate is about $760 with shop and dealer comparisons of $846 to $1,092. An independent shop at $110 to $150 per hour installing an AISIN pump lands in the $415 to $805 window in this table, with most trucks realistically invoicing in the $500 to $700 range including fresh coolant.
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 Toyota Tundra water pump replacement cost?
A 2018 Toyota Tundra water pump replacement typically runs $415 to $805 at an independent shop, parts and labor included. The water pump itself is $100 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 Toyota Tundra 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 Toyota 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 Toyota 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 Toyota 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 Toyota Tundra?
Yes, NHTSA lists 9 recalls for the 2018 Toyota Tundra. 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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