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Replacing the timing belt on an Infiniti G37 is a maintenance task that affects engine longevity and reliability. Choosing the right timing belt kit matters because the kit usually supplies multiple components that must work together to keep engine timing precise and prevent costly engine damage. This guide highlights the top shortlisted timing belt kits for the Infiniti G37, explaining the criteria we used to evaluate them, including component quality, fitment completeness, and installation clarity. Read on to find options that suit different skill levels and maintenance goals.
Looking for other parts? See all Infiniti G37 parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | Gates PowerGrip Premium Timing Belt Component Kit (TCK179) |  |
| Most Popular A crowd favorite that many people choose with confidence | MNJWS Timing Belt and Water Pump Kit for Honda/Acura V6 Engines |  |
| Best Quality Built to a higher standard if you want something more solid | APSG Gates Racing T215RB Complete Timing Belt Kit with Water Pump and Seals |  |
| Best Budget The cheapest option that still gets the job done reliably | A-Premium Timing Belt Kit with Water Pump and Tensioner |  |
| Most Sold A high-volume bestseller chosen again and again | Nakuuly Timing Belt Kit with Water Pump (Timing Belt Kit) |  |
| Best Value for Money The sweet spot between price and what you get | Gates PowerGrip Premium Timing Belt Kit with Water Pump (TCKWP265A) |  |
| Best Overall The best all-around choice for most situations | AISIN TKF-006 Timing Belt Kit with Water Pump |  |
1. Gates PowerGrip Premium Timing Belt Component Kit (TCK179)
| Brand | Gates |
|---|---|
| Model | PowerGrip Premium Timing Belt Component Kit |
| Item model number | TCK179 |
| Manufacturer Part Number | TCK179 |
This Gates PowerGrip timing belt component kit is designed as a one-stop set for a full timing system replacement on compatible vehicles. The kit typically includes the timing belt, idler(s), tensioner, tensioner spring and hardware plus installation instructions, so a technician can replace all wear items in one job rather than sourcing parts separately. Gates positions these kits as factory-quality replacement parts and many installers report straightforward fit and reliable performance in real-world use. The practical benefit is reduced risk of mismatched parts and fewer comebacks because the kit covers the whole system. Limitations are that the kit does not include specialty tools such as camshaft locking fixtures and you must verify exact fitment for an Infiniti G37 before ordering since vehicle-specific components and procedures vary. For a reliability-focused owner planning a thorough timing service, this kit streamlines the job and uses parts from a well-known supplier, but expect to supply any model-specific tools and seals the service may require.
Best for: Reliability-focused buyers who prioritize doing a full timing-system replacement with factory-quality components to minimize future failures and shop callbacks.
Less Ideal for: Buyers who expect a plug-and-play universal solution without checking vehicle-specific fitment or those who need the specialty tools included with the kit.
- Complete kit includes belt, idlers, tensioner and hardware for a single-source timing job
- Factory-quality parts from a recognized timing belt manufacturer
- Detailed installation instructions and technical notes included to aid correct installation
- Commonly available for domestic and import applications, simplifying parts sourcing
- Does not include specialty installation tools such as camshaft locking tools
- Fitment is vehicle-specific so you must confirm compatibility with an Infiniti G37 before purchase
Verdict A convenient, factory-quality timing kit that simplifies a full timing-system replacement for reliability-minded owners, provided you confirm exact fitment for your Infiniti G37.
2. MNJWS Timing Belt and Water Pump Kit for Honda/Acura V6 Engines
| Compatible engines | 3.0L, 3.5L, 3.7L V6 (listed vehicles) |
|---|---|
| Replaces | Multiple Honda/Acura part numbers (see product listing) |
This MNJWS kit supplies the core components needed when replacing a timing belt and water pump as a single service. It is packaged as an all-in-one timing system rebuild solution and typically used when performing a scheduled timing belt change to avoid repeat labor. The kit includes the timing belt, water pump and gasket, tensioner and idler pulleys, oil seals, and related hardware so you can replace the entire timing drive during one repair. For a convenience-focused buyer this reduces parts sourcing and ensures matching components arrive together. Practical benefits include bundled fitment to the listed vehicles, replacement part numbers called out for cross-reference, and multiple reviews reporting near-factory fit and straightforward installation when done by a competent DIYer or mechanic. Important limitations are variable build quality across components reported in reviews and at least one complaint of premature failure, so it is wise to inspect pulleys and tensioner tolerances before installation and consider upgrading critical pieces if you need maximum longevity. Professional installation is recommended if you are not experienced with timing systems.
Best for: Convenience-driven buyers who want a single-purchase timing system solution to simplify a scheduled timing belt and water pump service and avoid multiple orders or trips to parts stores.
Less Ideal for: Risk-averse owners who prioritize OEM or premium-brand proven longevity for critical engine components should consider branded or factory-quality alternatives and professional sourced parts.
- Complete kit bundles belt, water pump, tensioner, idler pulleys, seals and gaskets so you get all required parts in one purchase
- Listed to replace specific factory part numbers for direct cross-referencing with service manuals
- Multiple users report good fit and near-factory performance when installed correctly
- Saves time sourcing individual parts and can reduce total labor cost by supplying matched components
- Aftermarket quality is inconsistent across reviews with some reports of early failure on tensioner or belt
- Not a genuine factory kit so long-term durability may be lower than factory or premium aftermarket brands
- Requires careful pre-install inspection and proper installation torque procedures to avoid engine damage
Verdict A convenient, full timing-kit package that simplifies a V6 timing belt/water-pump service but carry extra caution on component quality versus OEM or top-tier aftermarket kits.
3. APSG Gates Racing T215RB Complete Timing Belt Kit with Water Pump and Seals
| Compatible engines | 3.0L (select applications) |
|---|---|
| Includes | Gates RPM belt, Aisin water pump, NTN tensioner, Koyo bearing, genuine seals, thermostat |
| Fitment years | GS300 1998-2005, IS300 2001-2005 |
This APSG complete timing belt kit packages a Gates RPM performance timing belt with factory-quality supporting components so you can replace the entire front-end timing assembly in one job. It includes an Aisin water pump, NTN hydraulic tensioner, Koyo tensioner bearing, genuine cam and crank seals, a thermostat and gasket, and a Gates serpentine drive belt. In practice this means you avoid piecemeal shopping and get matched parts that simplify a full timing-service refresh. The Gates RPM belt targets higher durability and clutch on-rpm stability, while the hydraulic tensioner and new seals reduce the risk of installation-related leaks. Buyers should note the kit is built for select 3.0L engines and fitment must match the vehicle application carefully; some users reported missing small VVTi o-rings and occasional concerns about gasket appearance or noisy water pumps, so confirm the included subparts against your service checklist before starting work. For a performance-focused owner wanting a near-OEM overhaul in one box, this kit covers almost everything needed for a timing belt and water-pump job.
Best for: Performance-oriented owners who prioritize a near-factory, high-quality timing system refresh in one purchase and prefer pre-matched, name-brand components for a 3.0L engine service.
Less Ideal for: Owners who want the absolute cheapest individual parts or who prefer purchasing every component from the vehicle manufacturer directly should consider other options.
- Complete kit bundles timing belt, water pump, tensioner, seals, thermostat and accessory belt to simplify a full timing-service job.
- Uses recognized OEM-brand components (Aisin water pump, NTN tensioner, Koyo bearing) for factory-quality replacements.
- Gates RPM timing belt provides a performance-oriented belt compound aimed at longevity and stable timing under load.
- Includes most recommended gaskets and VVT-related seals to reduce leak risk after service.
- Some buyers reported the VVTi cam pulley o-ring and a special sealing washer may not be present in every box and must be sourced separately.
- A few reviews mention non-OEM-looking gaskets or a noisy water pump in isolated cases.
- High component count means you should verify every small seal and part before tearing down the engine to avoid an extra parts order.
Verdict A performance-minded, near-OEM complete timing and water-pump kit that bundles reputable brands to simplify a thorough 3.0L timing service, but double-check small VVTi seals before installation.
4. A-Premium Timing Belt Kit with Water Pump and Tensioner
| Brand | A-Premium |
|---|---|
| Manufacturer Part Number | APTBK030 |
| Included Components | Timing Belt, Tensioner, Idler, Water Pump with Gasket |
| Vehicle Engine Fitment | L4 2.0L only |
This A-Premium kit bundles the timing belt, tensioner, idler and a water pump with gasket into a single replacement package intended to restore timing drive function on compatible 2.0L engines. In practice you would buy it when replacing a worn belt and water pump together to avoid repeated labor. The kit is presented as a direct-fit replacement and includes the common hardware needed for a single service, which simplifies installation for a professional or competent DIY mechanic. Customer feedback indicates generally good fit and service life for the belt and pump, though some users reported a water pump pulley or pilot-tab difference that required minor modification during installation. The components look serviceable for a cost-conscious repair, but some pulleys and fittings may feel lower-end compared with higher-priced aftermarket or factory-quality parts. If you want a complete budget kit to get the job done and avoid sourcing separate parts, this is a practical option; if you need guaranteed factory-style finish on every component you may prefer a premium kit.
Best for: Budget-conscious buyers looking to do a full timing-belt service in one purchase and minimize parts sourcing and labor repetition.
Less Ideal for: Shoppers who prioritize factory-quality finishes on every component or need parts specifically for Infiniti G37 should look at models made for that vehicle instead.
- Complete kit includes timing belt, tensioner, idler and water pump with gasket so you replace all wear items at once
- Marketed as vehicle-specific fitment which reduces the chance of ordering the wrong parts
- Good value for money for combined belt and pump replacement compared with buying components separately
- Some users noted the water pump pulley or pilot location required a simple drill/mod to fit exactly
- Certain pulleys or small components feel budget-grade compared with higher-end aftermarket brands
- Fitment is limited to the listed 2.0L Hyundai/Kia applications and not universal
Verdict A practical, low-cost timing belt kit that covers the whole service but may require minor adjustments and lacks premium-level hardware.
5. Nakuuly Timing Belt Kit with Water Pump (Timing Belt Kit)
| Brand | Nakuuly |
|---|---|
| Material | Cast Iron |
| Vehicle Service Type | Car |
| Manufacturer | BaoSJ |
| Position | Front |
This Nakuuly timing belt kit supplies the core parts needed when replacing the timing system and water pump on compatible V6 engines. The kit includes a timing belt, water pump and gasket, idler and tensioner pulleys, a hydraulic tensioner, cam and crank seals, and a serpentine belt so you get the common failure points in one package. In practice it is intended for a full timing service where replacing the belt and pump together reduces the risk of engine damage later. Buyers report easy fitment for many V6 installs and the included seals and belts simplify parts sourcing. Quality reports are mixed: several users found acceptable performance for thousands of miles, while others experienced premature failure of tensioner or pump components, which can cause costly engine damage. That variability means this kit is useful for budget-conscious repairs or as a stopgap, but for long-term reliability consider sourcing higher-grade tensioner and pump components or having a trusted shop inspect the parts before installation.
Best for: Risk-averse mainstream buyers who prioritize avoiding unexpected downtime by replacing the full timing assembly when doing maintenance and prefer a single kit that covers the common wear items.
Less Ideal for: Drivers seeking the highest long-term durability or professional shops doing warranty-critical repairs should consider premium aftermarket or factory-quality individual components instead.
- Complete kit includes timing belt, water pump, hydraulic tensioner, idler pulleys, cam and crank seals, and serpentine belt so you do not need to track multiple parts separately.
- Designed as a vehicle-specific fit which simplifies installation for the listed engines when correct fitment is confirmed.
- Includes front seals and serpentine belt, reducing additional parts purchases during a timing service.
- Many buyers report correct fitment and trouble-free operation for routine driving when installed and inspected properly.
- Inconsistent component quality reported by some users, particularly water pump and tensioner parts that failed early in a few cases.
- Some critical components are lower-cost copies of factory parts which may reduce long-term durability compared with higher-end replacements.
- A few reviewers needed to replace individual items after purchase, which can erase the initial cost savings.
Verdict Provides a complete, budget-friendly timing service package but inspect or upgrade critical pump and tensioner parts if you need maximum long-term reliability.
6. Gates PowerGrip Premium Timing Belt Kit with Water Pump (TCKWP265A)
| Brand | Gates |
|---|---|
| Model | PowerGrip Premium Timing Component Kit with Water Pump |
| Manufacturer Part Number | TCKWP265A |
| Position | Center |
This Gates PowerGrip Premium timing belt kit bundles the belt, tensioner, idlers and a water pump to let you replace all timing-system components in one service. For Infiniti G37 owners doing a scheduled timing belt/water pump job, the kit removes guesswork by including the parts you would normally replace together to avoid repeat labor. Gates parts are engineered to match factory fit and function so installation is straightforward and parts align without modification in most cases. The included water pump means you do not need to source a separate unit, which simplifies planning and reduces overall cost compared with buying individual parts. Some customers report component origins vary by part, and a few installers have needed minor cover clearance for upgraded tensioners, so check fitment against your engine before final assembly. This kit is a practical, cost-effective choice for a full timing service on the G37 when you want one consolidated solution rather than piecing parts together.
Best for: Practical optimizers who prioritize getting a complete, factory-quality timing job done efficiently and want to minimize future callbacks and extra trips to buy missing parts.
Less Ideal for: Buyers who require every component from a single country of manufacture or who prefer to source individual premium-brand pumps separately should consider other options.
- Complete kit includes timing belt, tensioner, idlers and water pump so all critical components are replaced together
- Factory-quality Gates components designed for direct fit and reliable alignment during installation
- Simplifies planning and can reduce total repair cost and labor compared with buying parts separately
- Some parts in the kit are manufactured in multiple countries which may concern buyers seeking single-origin components
- A small number of installers report needing minor timing cover clearance for the upgraded tensioner on certain engines
Verdict A cost-effective, factory-quality all-in-one timing belt and water pump kit that streamlines a full timing service on the Infiniti G37.
7. AISIN TKF-006 Timing Belt Kit with Water Pump
| Brand | AISIN |
|---|---|
| Material | Aluminum, Ceramic |
| Manufacturer | Aisin |
| Automotive Fit Type | Vehicle Specific Fit |
| Model | Timing Belt Kit with Water Pump |
This AISIN TKF-006 kit packages the parts needed to replace a timing belt and water pump together, which is useful when doing a full timing service on an engine where those components are due. The box contains a timing belt, tensioner, idler pulleys, a water pump with a diecast aluminum housing and ceramic seal, gaskets, and installation instructions. For a competent DIYer or a shop doing a scheduled replacement, the kit simplifies parts sourcing and ensures the components are matched to each other, reducing compatibility headaches. AISIN supplies factory-quality components and known-brand bearings that typically fit and perform like factory replacements. The practical benefit is having all service items in one package so you can complete the job once rather than repeating labor later. Limitations include confirming exact fitment for the Infiniti G37 engine variant before purchase, since the kit is listed for specific Subaru engines and the correct water pump mounting or pulley design can vary across platforms. Buyers should verify engine compatibility and be prepared to source a vehicle-specific thermostat or hoses if needed.
Best for: Balanced buyers who want a single, factory-quality timing service package to reduce repeat labor and sourcing time for a scheduled engine timing service.
Less Ideal for: Buyers who need a guaranteed, direct fit for an Infiniti G37 without verifying part compatibility or who prefer a kit explicitly marketed for that exact model and engine variant.
- Complete service kit includes timing belt, tensioner, idler pulleys, gaskets, and water pump for one-stop replacement.
- Water pump features diecast aluminum housing and carbon ceramic seal for durability.
- Components are OEM-matched and use established suppliers for bearings and pulleys.
- Includes installation instructions and torque/belt routing information to aid installation.
- Kit is listed for select Subaru applications so fitment for an Infiniti G37 must be confirmed beforehand.
- Does not include vehicle-specific auxiliary items like thermostat or coolant hoses that some installs require.
Verdict A high-quality, all-in-one timing belt and water pump service kit from a trusted OEM supplier, but verify fitment carefully for the Infiniti G37 before buying.
Choosing the Right Infiniti G37 Timing Belt Kit: Key Factors to Consider
Kit Completeness
A complete timing belt kit should include all the service items typically replaced during a timing job, such as the belt, tensioner, idler pulleys, and any required seals or hardware. If the water pump is commonly replaced at the same service interval for the Infiniti G37, having it or its gaskets covered by the kit reduces repeated labor and potential for mismatch.
Completeness matters because missing parts lead to additional purchases and potential fitment mismatches. Verify that the kit lists every part you will remove during service so you are not forced to source parts separately mid-job.
Component Quality and Materials
The belt's construction, such as reinforced cords and heat-resistant rubber compounds, directly affects longevity and resistance to stretching or cracking under load. Bearings in tensioners and idlers should be specified for automotive use, offering sealed designs and suitable load ratings to avoid premature failure.
Higher-quality materials generally translate to longer service intervals and lower risk of catastrophic failure. Look for clear material descriptions and manufacturing standards to assess expected durability.
Fitment Accuracy
Accurate fitment information specific to the Infiniti G37 engine ensures the parts align correctly and the kit installs without modification. Properly specified part numbers and fitment checks reduce the risk of receiving incorrect pulleys or tensioners that affect timing geometry.
Fitment is especially important because a single wrong component can cause installation issues or engine damage. Confirm engine code and model-year compatibility when choosing a kit.
Installation Guidance and Support
Clear installation instructions, access to diagrams, and manufacturer support can make the difference between a straightforward job and one that requires additional troubleshooting. Kits that include torque specs, timing marks, and step references cut down on guesswork during reassembly.
Good support also matters if you encounter unexpected issues. Documentation that aligns with common service procedures for the Infiniti G37 improves the odds of a correct, durable installation.
Durability and Warranty
A kit backed by a reasonable warranty or clear durability claims gives confidence in the expected lifespan of the components. Warranties show the manufacturer’s willingness to stand behind materials and workmanship, and can be helpful if a component fails prematurely.
Durability considerations include resistance to oil and heat exposure and longevity under typical driving conditions. Prioritize kits with documented warranty coverage and clear limits.
Compatibility with Service Interval Practices
Timing belt service interval recommendations influence what you include in a maintenance job. If the Infiniti G37’s typical service interval suggests replacing the water pump or seals alongside the belt, choose a kit that accounts for those items to minimize repeat labor.
Matching the kit contents to interval recommendations helps control long-term maintenance costs and ensures a thorough service that addresses related wear items at the same time.
FAQ
How often should I replace the timing belt on an Infiniti G37?
Replacement intervals vary by engine and driving conditions, but timing belts are typically changed at manufacturer-recommended mileages or when signs of wear appear. Check the vehicle’s service recommendations and factor in age, mileage, and any symptoms like noise or visible cracking.
Can I install a timing belt kit myself on an Infiniti G37?
Many mechanically skilled owners can perform the replacement with the right tools and clear instructions. The job requires precise timing alignment, proper torqueing, and sometimes removal of ancillary components, so allow ample time and follow detailed procedures closely.
Should I replace the water pump when changing the timing belt?
It often makes sense to address the water pump and related seals during a timing belt service because they share labor access. Replacing them together reduces the chance of future failures that would require redoing much of the same work.
What parts should a high-quality timing belt kit include?
A thorough kit generally contains the timing belt, tensioner, idler pulleys, necessary seals or gaskets, and any required mounting hardware. Some kits also include guidance or alignment tools that help ensure correct installation.
Are OEM and aftermarket timing belt kits equally reliable?
Reliability depends on the manufacturer and component specifications rather than the label alone. OEM parts follow factory specifications, while reputable aftermarket kits can match or exceed those specs. Review material descriptions, warranty terms, and fitment accuracy when deciding.
What are common signs the timing belt system needs attention?
Common indicators include unusual engine noises from the timing cover area, difficulty starting, or visible wear on accessible belt surfaces. If you notice any of these signs or the vehicle has high mileage, it is wise to inspect the timing components promptly.
How We Chose the Best Infiniti G37 Timing Belt Kit
We selected timing belt kits for the Infiniti G37 by focusing on attributes that matter for long-term engine health and straightforward installation. Primary evaluation criteria included the completeness of the kit such as whether it includes belt, tensioner, idler pulleys, and water pump seals; the quality and material specifications of the belt and hardware; and the accuracy of fitment information specific to the Infiniti G37 engine. We also considered documented durability indicators like reinforced belt construction and bearings with appropriate load ratings, plus the clarity of installation guidance and availability of replacement parts. Ease of installation was judged by how well the kit aligned with routine service procedures and whether it reduced the need for additional purchases. Excluded from the list were kits lacking clear fitment details for the Infiniti G37, partial kits that omit critical components, and options without verifiable material or manufacturing information. Our intent was to surface kits that provide a complete, reliable solution for timing belt replacement on the Infiniti G37.
Our full evaluation process is outlined in our review methodology.
Conclusion
Choosing the right timing belt kit for an Infiniti G37 comes down to matching kit completeness and component quality to the vehicle’s service needs. Prioritize kits that include all parts you will remove during service, use durable materials, and provide clear installation guidance. Weigh the tradeoffs between convenience and long-term reliability by considering warranty coverage and how the kit aligns with recommended service intervals. A well-chosen kit reduces the chance of repeat labor and helps maintain engine timing and longevity.
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