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If you drive a Toyota Highlander, the oil pump is one of the small components that has a big impact on engine longevity and performance. Picking the right pump matters because it controls oil pressure, lubrication timing, and how quickly critical parts receive protection during startup and heavy load. This guide presents seven shortlisted Toyota Highlander oil pump options chosen for their flow consistency and build quality. Below we explain the evaluation criteria and what to watch for when selecting a replacement or upgrade before the product list.
Looking for other parts? See all Toyota Highlander parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | ADIGARAUTO M373 Engine Oil Pump (replacement) |  |
| Most Popular A crowd favorite that many people choose with confidence | A-Premium Engine Oil Pump for Toyota 2.4L (replacement 15100-28020) |  |
| Best Quality Built to a higher standard if you want something more solid | DNJ OP917 Oil Pump Housing for 2.4L Toyota/Lexus 2362cc |  |
| Best Budget The cheapest option that still gets the job done reliably | CUGANO Engine Oil Pump M373 (compatible with 2001–2007 Toyota Highlander) |  |
| Most Sold A high-volume bestseller chosen again and again | GPQ 2AZ-FE Engine Head Gasket, Timing Chain, Oil Pump and Water Pump Kit for Toyota 2.4L |  |
| Best Value for Money The sweet spot between price and what you get | Vipcar 03042 Oil Pump with Repair Kit for Toyota 2GR-FE 3.5L V6 |  |
| Best Overall The best all-around choice for most situations | AISIN OPT-803 Matched Engine Oil Pump |  |
1. ADIGARAUTO M373 Engine Oil Pump (replacement)
| Material | Aluminum |
|---|---|
| Manufacturer Part Number | AOPM373 |
| OEM Part Number | M373, 15100-OH010, 15100-28020, 15100-0H060 |
This ADIGARAUTO M373 oil pump is a direct replacement-style unit intended to restore proper oil flow and pressure in compatible 2.4L Toyota-family engines. Installed in place of a worn pump, it supplies continuous lubrication to critical engine components, reducing friction and helping prevent premature wear. The pump ships with necessary installation hardware and sealing parts to simplify swap-out during routine engine work. Its aluminum construction and stated build to factory-spec tolerances aim to provide corrosion resistance and stable performance under normal driving. Important limitations are that fitment must be verified against the Highlander engine variant before purchase since the listing covers multiple Toyota and Scion models and years; incorrect selection would require return and reinstall. Also, as an aftermarket replacement, long-term durability can vary compared with factory-sourced parts depending on installation and operating conditions.
Best for: Reliability-focused buyers who prioritize restoring correct oil pressure with a cost-effective, factory-style replacement for routine engine maintenance and repair.
Less Ideal for: Buyers seeking an exact factory-sourced OEM part or those unwilling to verify engine-specific compatibility should consider alternatives.
- Designed to match factory specifications for a direct-fit replacement
- Includes installation hardware such as bolts, drive shaft, and gasket or seal
- Aluminum construction intended for corrosion resistance and consistent performance
- Claims precision manufacturing to provide stable oil pressure and lubrication
- Compatibility listing covers many models so you must confirm exact engine fitment before ordering
- Aftermarket part quality can vary and long-term reliability depends on installation and maintenance
Verdict A practical, factory-spec replacement option for restoring oil pressure in compatible 2.4L Toyota-family engines when fitment is carefully confirmed.
2. A-Premium Engine Oil Pump for Toyota 2.4L (replacement 15100-28020)
| Compatible Engines | Toyota 2.4L L4 (fitment list includes Camry, Highlander, RAV4, Matrix, Solara, Corolla) |
|---|---|
| Housing Material | Cast Iron |
| Mounting Holes | 3 mounting holes |
| Volume/Pressure | Standard volume and standard pressure |
This A-Premium oil pump is a direct replacement designed to supply oil to a 2.4L Toyota engine, restoring circulation and pressure to lubricate internal components. It is typically used when an original pump fails, during engine rebuilds, or when addressing low oil pressure concerns. The pump uses a cast iron housing and is supplied as a single unit with the oil pickup tube and screen; the listing indicates standard volume and pressure behavior and includes a gasket or seal. Practical benefits include straightforward swap-in fitment for compatible Toyota 2.4L applications, a durable cast-iron housing, and an included pickup tube which simplifies installation. Limitations to consider are that this is an aftermarket replacement rather than a factory-branded part, and a few user reports show occasional missing gasket hardware so verify contents before installation. Also, if you require a nonstandard high-volume or high-pressure pump for modified engines, this unit is specified as standard volume and pressure and may not meet those needs.
Best for: Convenience-driven owners who want a ready-to-install replacement to get a 2.4L Toyota back on the road quickly without sourcing dealer parts.
Less Ideal for: Enthusiasts building high-output or modified engines who need upgraded oil volume or pressure should look for performance-oriented pumps instead.
- Cast iron housing for durability under normal engine conditions
- Supplied with oil pickup tube and screen to simplify installation
- Listed as a direct-fit replacement for Toyota 2.4L engines to ease compatibility checks
- Aftermarket part rather than factory-branded, so fitment and finish can vary by unit
- Specified as standard volume and pressure so not suitable for high-performance or modified engines
Verdict A practical, cast-iron aftermarket replacement that restores oil circulation for Toyota 2.4L engines but is intended for stock-volume, stock-pressure applications.
3. DNJ OP917 Oil Pump Housing for 2.4L Toyota/Lexus 2362cc
| Vehicle Fitment | 2001-2015 Lexus, Pontiac, Scion, Toyota Camry, Corolla, Highlander 2.4L 2362cc |
|---|---|
| Exterior | Machined |
| Automotive Fit Type | Vehicle Specific Fit |
| Manufacturer | DNJ ENGINE COMPONENTS |
The DNJ OP917 is a direct replacement oil pump housing aimed at restoring proper oil circulation and lubrication on 2.4L 2362cc engines found in certain Toyota and Lexus vehicles. It installs in place of the factory unit and is typically used during engine rebuilds or to repair reduced oil pressure symptoms. Machined exterior surfaces and DNJ manufacturing aim to provide consistent oil flow and durability under normal driving and spirited use. Proper lubrication reduces friction and heat, which helps maintain engine performance and longevity when combined with routine maintenance. The housing is vehicle-specific, so fitment to the Highlander 2.4L is straightforward for experienced technicians or competent DIYers. Limitations include lack of bundled internal pump gears or seals in the listing and no included installation hardware, so you may need to transfer components from the original pump or purchase ancillary parts separately. The part is a solid factory-quality replacement that focuses on restoring engine oiling rather than offering performance upgrades beyond OEM-equivalent operation.
Best for: Performance-oriented buyers seeking a factory-quality replacement to restore reliable oiling and protect engine components during spirited driving and higher-load operation.
Less Ideal for: Buyers looking for a performance-upgrade oil pump or a complete drop-in assembly with all internal parts included should consider other options.
- Vehicle-specific design for direct fit on compatible 2.4L engines
- Machined exterior for consistent mating and alignment
- From a specialist engine-parts brand with a long track record
- Restores factory-level oil circulation to protect internal engine components
- Does not list included internal pump components or seals, which may require transferring parts from the original pump or buying extras
- No installation hardware or comprehensive instructions included in the listing
Verdict A factory-quality, vehicle-specific oil pump housing that restores proper oil circulation for 2.4L Highlander engines but may require sourcing internal components or hardware separately.
4. CUGANO Engine Oil Pump M373 (compatible with 2001–2007 Toyota Highlander)
| Compatible engines | 2.4L L4 Toyota Highlander 2001–2007 |
|---|---|
| Manufacturer | CUGANO |
| Manufacturer part number | CGYB-373 |
| OEM part numbers | 1510028020 19185349 M373 151000H010 151000H060 |
This CUGANO M373 oil pump is a direct-replacement style pump intended to restore oil pressure and normal lubrication in Toyota Highlander 2.4L engines (2001–2007). It is used to replace a failing pump when symptoms like low oil pressure, oil-pressure warning lights, overheating, or unusual engine noise appear. The pump supplies pressurized oil to bearings and cam components so the engine runs without abrasive wear and overheating. Practical benefits include straightforward fitment for the specified Highlander engines and the ability to return oil pressure to factory-like levels after installation. The unit is compact and sold as a single pump, which simplifies repairs. Limitations are typical of budget aftermarket parts: long-term durability may vary compared with higher-end factory-quality units and the listing emphasizes verifying VIN-fitment before purchase, so confirmation is required to avoid fitment issues. Installation quality and correct oil levels remain important for reliable performance.
Best for: Practical, budget-conscious buyers who need a cost-effective replacement to get a 2001–2007 Toyota Highlander back on the road without investing in premium parts.
Less Ideal for: Drivers planning a long-term, high-mileage rebuild or seeking best-in-class longevity should consider higher-end or factory-quality replacement pumps instead.
- Made to replace the factory oil pump for 2.4L Highlander engines so installation is straightforward
- Restores oil pressure and critical lubrication to protect engine bearings and valvetrain
- Sold as a single complete pump, simplifying parts sourcing for a repair
- Aftermarket budget construction may not match longevity of higher-end or factory-quality pumps
Verdict A wallet-friendly, direct-replacement oil pump that restores pressure for 2001–2007 Toyota Highlander 2.4L engines but may not offer the longevity of premium factory-quality units.
5. GPQ 2AZ-FE Engine Head Gasket, Timing Chain, Oil Pump and Water Pump Kit for Toyota 2.4L
| Fitment Engine | Toyota 2AZ-FE 2.4L |
|---|---|
| Includes | Head gasket set, timing chain kit, oil pump, water pump, 10 head bolts |
| Compatible Models | Camry 2002-2011; Highlander 2001-2007; RAV4 2004-2008; Corolla/Matrix/Scion/Lexus HS variants |
This GPQ kit supplies the major internal components needed when performing an engine refresh or major repair on Toyota 2AZ-FE 2.4L engines. It includes a cylinder head gasket set, timing chain kit, oil pump, water pump, and a set of head bolts so technicians can address common failure points in one job. Typical use is during head gasket replacement, timing chain service, or when replacing a failing oil or water pump; having the grouped parts reduces parts-shopping and helps coordinate labor. The parts list references common factory part numbers which suggests fit-intent for Camry, Highlander, RAV4 and other 2.4L models. Practical benefits are consolidated compatibility for that engine family and a complete parts set that can prevent repeat disassembly. Limitations are that the kit depends on correct installation and timing alignment by a competent mechanic, and the listing does not include detailed torque specs or step-by-step instructions, so professional installation or a good service manual is recommended.
Best for: A risk-averse mainstream buyer who wants a single, factory-intent kit to avoid repeated disassembly and ensure all major 2AZ-FE service items are replaced together.
Less Ideal for: Do-it-yourselfers without experience in engine timing or head assembly should avoid this kit unless working with a professional mechanic or service manual.
- Comprehensive kit bundles head gasket, timing chain, oil pump, water pump and head bolts to cover multiple failure points in one service.
- References common factory part numbers for 2AZ-FE which aids compatibility checks for Toyota 2.4L engines.
- Reduces parts sourcing time by supplying most components needed for a head gasket or timing/ pump service.
- Includes ten head bolts so the cylinder head can be reassembled without hunting down hard-to-find fasteners.
- No detailed installation instructions or torque specifications are provided with the listing.
- Fit and timing accuracy depend on installer skill; timing marks may require careful verification.
Verdict A convenient all-in-one replacement kit for Toyota 2AZ-FE 2.4L engine repairs that cuts parts hunting but requires professional-level installation for reliable timing and sealing.
6. Vipcar 03042 Oil Pump with Repair Kit for Toyota 2GR-FE 3.5L V6
| Brand | Vipcar |
|---|---|
| Engine fitment | Toyota 2GR-FE 3.5L V6 |
| Manufacturer | LOBAM MACHINERY |
| Manufacturer Part Number | 03042 |
This Vipcar 03042 oil pump is a replacement unit built for the Toyota 2GR-FE 3.5L V6 and ships with a repair kit to simplify installation. It is used to restore proper oil pressure and flow in affected Camry, Highlander, Avalon, Sienna, RAV4, Venza, ES350 and RX350/RX450h applications across the stated model years. The pump is die-cast and uses precision-machined gears and gerotor technology to reproduce factory-style tolerances, while the listing notes pressure, flow and fatigue testing to mirror real-world operating conditions. For a practical owner seeking a budget-friendly replacement, the pump promises reliable pressure without adding excess load and aims to extend engine life when installed correctly. Limitations include the need to confirm exact fitment for vehicles with varying oil pressure requirements and the usual caveat that aftermarket parts can vary from factory parts in long-term durability, so careful verification and correct installation are important.
Best for: Practical optimizers who want a cost-conscious, functional replacement to restore oil pressure on a Toyota Highlander with the 3.5L V6 and prefer parts that aim to mirror factory performance.
Less Ideal for: Buyers seeking an exact factory-sourced part with manufacturer-backed fitment guarantees or those unwilling to verify vehicle-specific oil pressure variants should consider alternatives.
- Designed specifically for Toyota 2GR-FE 3.5L V6 engine fitment.
- Precision-machined gears and gerotor design to maintain proper oil pressure and flow.
- Factory-style testing cited for pressure, flow, temperature fatigue and corrosion resistance.
- Includes a repair kit to help simplify replacement and reduce additional parts hunting.
- Aftermarket unit may not match long-term durability of a factory-quality part in every application.
- Fitment variations across 2GR-FE applications require careful verification before purchase.
Verdict A budget-minded, test-backed replacement oil pump for the Toyota 3.5L V6 that balances cost and practical performance when fitment is confirmed.
7. AISIN OPT-803 Matched Engine Oil Pump
| Manufacturer | Aisin |
|---|---|
| Position | Front, Rear |
| Model | OPT-803 |
The AISIN OPT-803 is a direct-fit, factory-matched replacement oil pump intended to restore proper oil flow and pressure on compatible Toyota-family engines. It installs in the same location and uses the same production processes as the original supplier, so it is typically used during engine repair or overhaul to replace a worn or failed pump. Notable features include engineered fitment to factory specs and machining consistent with production-quality components, which helps ensure correct clearances and reliable pressure delivery under normal driving conditions. In practice this means the pump will lubricate critical components without adding excess load to the engine and should revive engines that suffered from low-pressure symptoms when matched to the correct engine code. Important limitations: some buyers report the gasket is not included and must be sourced separately, and there are a few isolated reports of units that did not prime or flow correctly, so verify fitment and inspect the part on arrival before installation.
Best for: Balanced owners who want a factory-quality replacement pump for routine engine repair or maintenance on a Toyota Highlander and value correct fitment and long-term reliability.
Less Ideal for: Buyers who need a complete repair kit out of the box or those who prefer a low-cost universal pump that may require further modification should consider other options.
- Factory-matched design for correct fit and compatibility with specified Toyota-family engines
- Manufactured using the same production processes as OEM components for consistent quality
- Engineered to deliver appropriate oil pressure without creating excess mechanical load
- Machined exterior and construction aimed at durability and long service life
- Gasket is not included with the pump and must be purchased separately
- A small number of buyers reported units that failed to prime or flow correctly
Verdict Aisin's OPT-803 is a factory-matched replacement that restores proper oil pressure for Highlander engines but remember to source the correct gasket separately.
Choosing the Right Toyota Highlander Oil Pump: Key Factors to Consider
Flow Rate And Pressure Stability
Oil pumps must maintain adequate flow across a range of engine speeds and temperatures. Consistent flow prevents metal-to-metal contact during startup and under sustained high-load driving. Variations or drops in flow can accelerate wear on bearings, camshafts, and other moving parts.
When evaluating pumps, look for documented performance curves or manufacturer specifications that show flow and pressure under realistic conditions. A pump that delivers steady pressure at both idle and higher RPMs reduces the risk of lubrication starvation during transient conditions.
Build Quality And Materials
The materials and machining tolerances used in pump components affect longevity and resistance to wear. Hardened gears, corrosion-resistant coatings, and high-quality bearings help maintain clearances that preserve volumetric efficiency over time. Poor metallurgy or loose tolerances can lead to premature internal leakage and pressure loss.
Consider designs with proven sealing methods and durable finishes, since contaminants and heat cycles will challenge internal surfaces. Robust construction also reduces the chance of oil pump noise arising from loosened or worn parts.
Compatibility With Highlander Engine Geometry
Physical fit and hydraulic matching to the Highlander engine are crucial. The pump must align with the engine’s pickup, oil passages, and mounting points to ensure proper suction and distribution. Even slight differences in clearances or pickup location can cause cavitation or inadequate supply at critical points.
Verify that the unit is specified for the Highlander engine variant you own and that recommended gaskets and seals are available. Proper compatibility minimizes installation complexity and the chance of post-installation leaks or pressure anomalies.
Installation And Serviceability
Some pumps are straightforward to fit while others require more disassembly or special tools. Ease of installation affects labor time and the likelihood of installation errors that lead to leaks or incorrect gear mesh. Availability of installation guides, torque specs, and quality gaskets simplifies the process.
Also consider ongoing serviceability: whether replacement seals are standard sizes, and if the design allows inspection without extensive teardown. A service-friendly pump reduces future maintenance time and cost.
Resistance To Contaminants And Heat
Engine oil carries particulates and is exposed to high operating temperatures, so a pump must tolerate contamination and repeated thermal cycling. Filters in the system reduce debris, but the pump should still handle small particulates without rapid wear or scoring.
Heat resistance in materials and lubricity-preserving finishes helps keep internal clearances within spec. Pumps engineered for contaminant tolerance and thermal stability typically maintain performance longer in real-world driving conditions, including city traffic and towing.
Sealing And Gasket Integrity
A secure gasket seal and proper sealing surfaces prevent external leaks and preserve internal pressure. Leaking gaskets can cause loss of suction, air ingestion, and an eventual drop in oil pressure. The pump design should accommodate a reliable gasket seal that remains effective through vibration and thermal cycles.
When selecting a pump, confirm that compatible gasket kits are available and that sealing surfaces are flat and corrosion-free. Good sealing practice reduces the chance of oil-related faults after installation and helps maintain consistent system pressure.
FAQ
What are common symptoms of a failing oil pump in a Toyota Highlander?
Typical signs include a drop in oil pressure readings, unusual engine noises at startup or under load, and warning lights on the dash. You may also notice higher-than-normal engine temperatures or reduced oil pressure that fluctuates with RPM. These symptoms often warrant a prompt inspection to prevent further engine damage.
Can I replace the oil pump myself during regular maintenance?
Installation complexity depends on the engine layout and your mechanical experience. Some Highlander engines require significant disassembly and torque-sensitive reassembly, which can be challenging without proper tools and service information. If you are comfortable with multi-step engine work and follow factory torque specs and sealant guidance, DIY is feasible; otherwise professional assistance is advisable.
How does oil pump failure typically affect engine life?
A failing pump reduces lubrication effectiveness and can accelerate wear on bearings, camshafts, and other moving parts. If oil pressure drops significantly or intermittently, metal components may experience increased friction and heat, which shortens service life. Addressing pump issues early helps prevent extensive engine damage.
Are high pressure oil pumps necessary for normal Highlander use?
High pressure designs are usually intended for specific performance or towing needs where additional lubrication or pressure stability is required. For routine commuting and light-duty driving, a pump matched to the engine’s factory pressure and flow specifications is typically sufficient. Consider high pressure units only if your driving conditions demand it.
What should I check after installing a replacement oil pump?
After installation, verify there are no external leaks, oil pressure is within expected ranges at idle and during higher RPMs, and there are no unusual noises. Also confirm that the pickup tube and screen are clear and that gaskets and seals are seated correctly. Monitor the system for a short period of operation to ensure stable performance.
How We Chose the Best Toyota Highlander Oil Pump
We focused on pumps designed to meet the operational demands of the Toyota Highlander and prioritized measurable performance traits. Key criteria included sustained flow rate at operating temperature, pressure stability under load, and materials or coatings that resist wear. We also assessed manufacturing tolerances and shaft/bearing construction to gauge long-term reliability, plus compatibility with the Highlander engine’s oil passages and clearances. Additional filters included ease of installation relative to the Highlander’s service procedures and availability of genuine replacement gaskets or seals. We excluded units lacking clear specification data or those not explicitly designed for the Highlander engine platform. The final selections balance hydraulic performance, mechanical durability, and serviceability for typical driving and towing scenarios.
Our full evaluation process is outlined in our review methodology.
Conclusion
When choosing a Toyota Highlander oil pump, prioritize sustained flow and pressure stability, build quality, and proper compatibility with the engine geometry. These factors have the greatest impact on long-term lubrication and component life. Balance ease of installation and availability of quality gasket seals against desired performance characteristics. Addressing pump issues promptly and selecting a unit that matches your typical driving demands will help preserve engine reliability.
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