Note: This article contains affiliate links. If you click on these links and make a purchase, I may earn a small commission at no extra cost to you. This helps support my research and content. Read my full affiliate disclaimer here.
If you drive a Toyota Avalon and want to reduce oil vapor and sludge buildup in the intake, a dedicated catch can can help. Choosing the right Toyota Avalon oil catch can matters because units vary in filtration design, fitment convenience, and how they route crankcase and PCV vapors back into the intake. This guide covers seven shortlisted catch cans that suit the Avalon, with attention to filtration performance and installation practicality. Below we explain the criteria we used and what to watch for as you compare options.
Looking for other parts? See all Toyota Avalon parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | BOMLING 350ml Universal Aluminum Baffled Oil Catch Can Kit |  |
| Most Popular A crowd favorite that many people choose with confidence | RULLINE Universal 2-Pack 350ml Baffled Oil Catch Can |  |
| Best Quality Built to a higher standard if you want something more solid | POSENG AN10 1.2L Twin‑Baffle Dual‑Filter Oil Catch Can |  |
| Best Budget The cheapest option that still gets the job done reliably | Htostar Racing Billet Aluminum Oil Catch Can Kit (350–400 ml) |  |
| Most Sold A high-volume bestseller chosen again and again | EVIL ENERGY Oil Catch Can Air Oil Separator (3 oz) |  |
| Best Value for Money The sweet spot between price and what you get | WENJTP 150ml Universal Baffled 3-Port Oil Catch Can with Breather Filter and Drain Valve |  |
| Best Overall The best all-around choice for most situations | EVIL ENERGY 300ml Baffled Oil Catch Can with 5ft NBR Hose Kit |  |
1. BOMLING 350ml Universal Aluminum Baffled Oil Catch Can Kit
| Capacity | 350ml |
|---|---|
| Ports | 2-port |
| Material | 0046 aluminum |
| Includes | Hose, fittings, stainless steel wool, dipstick |
This BOMLING 350ml oil catch can captures oil and moisture from the PCV/CCV system to keep intake passages cleaner and reduce carbon buildup on the Avalon’s intake and valves. It installs inline between the valve cover and intake plumbing and is used on vehicles that benefit from reduced intake oiling, particularly higher-mileage Avalons or those used for occasional heavy loads. The can is billet-style 0046 aluminum with internal baffling and comes with fittings, a hose, stainless steel wool, a dipstick, and thread seal tape for a mostly complete install. Practical benefits include a visible reservoir with a dipstick for quick checks and a TIG-welded body that should resist corrosion. Limitations: the supplied hose and some O-rings may be low quality so owners often replace them with reinforced vacuum-rated hose and better seals, and the steel wool insert can be swapped for copper if you prefer a softer filler material. The 350ml capacity is adequate for routine driving but will require periodic draining on engines that generate heavy blow-by.
Best for: Reliability-focused buyers who prioritize prolonging engine life and minimizing intake contamination on a Toyota Avalon through preventative maintenance and practical upgrades.
Less Ideal for: Drivers seeking a completely maintenance-free or sealed system; those unwilling to swap out low-quality supplied hoses or replace small parts should consider higher-end, vehicle-specific units.
- Billet 0046 aluminum construction with TIG welding for corrosion resistance and strength
- Included fittings, thread seal tape, dipstick and stainless steel wool give an almost complete install kit
- Internal baffling helps separate oil from crankcase vapors to reduce intake contamination
- 350ml reservoir provides a visible collection point and simple dipstick check
- Supplied hose and some seals are reported to be low quality and may need immediate replacement
- Steel wool insert is stainless steel which some users replace with copper to avoid hard fragments entering the system
Verdict A budget-friendly, well-built universal catch can that improves intake cleanliness on a Toyota Avalon but may need minor parts upgrades for long-term reliability.
2. RULLINE Universal 2-Pack 350ml Baffled Oil Catch Can
| Capacity | 350 Milliliters |
|---|---|
| Product Grade | Performance Part |
| Fit Type | Universal |
| Fuel Type | oil |
This RULLINE two-pack provides two 350ml aluminum baffled catch cans designed to intercept oil and moisture from the PCV/CCV system before it reaches the intake. Installation is typical for universal catch cans: mount the can near the PCV and route hoses between the valve and the intake, using the included adapters and fittings to match hose diameters. Notable features include fully TIG-welded construction, an O-ring sealed screw cup for easier draining, a dipstick to check fluid level without opening the can, and multiple adapter fittings to help fit common hose sizes. In practice the cans trap emulsified oil and condensate that would otherwise form carbon and sludge in the intake, which can help keep throttle bodies and valves cleaner on the Avalon over long-term use. Downsides are the universal fit approach requires creative mounting and occasional hose swapping to get diameter and length right, and the supplied small mounting bracket and clamps may not suit every installation. Buyers should expect a straightforward DIY install but plan for a custom mount and possibly different hose or clamps for a neat, reliable fit on an Avalon.
Best for: Convenience-driven buyers who want a simple, low-effort way to reduce intake deposits on a Toyota Avalon without sourcing multiple individual parts or a custom unit.
Less Ideal for: Drivers seeking a vehicle-specific plug-and-play catch can or a professional shop-fit solution should consider a model engineered specifically for the Avalon to avoid extra hose routing and mounting work.
- Baffled 350ml aluminum reservoir captures oil and moisture to reduce intake contamination.
- Fully TIG-welded body and O-ring sealed screw cup for reliable sealing and easier draining.
- Includes dipstick for quick fluid-level checks without disassembly.
- Comes with multiple adapter fittings to cover common hose sizes.
- Lightweight corrosion-resistant aluminum construction.
- Universal kit requires custom mounting and may need replacement hoses or clamps for a tidy fit.
- Included small bracket and clamps are basic and may not work for all engine bays.
Verdict A practical, budget-friendly universal two-pack that helps keep an Avalon intake cleaner but requires some DIY mounting and hose selection for a neat installation.
3. POSENG AN10 1.2L Twin‑Baffle Dual‑Filter Oil Catch Can
| Capacity | 1.2 Liters |
|---|---|
| Hose fitting size | AN10 |
| Material | Aluminum |
| Design | Twin baffle with dual breather filters |
This POSENG catch can is a large‑capacity, TIG‑welded aluminum reservoir built to separate oil and blow-by before fumes reach the intake. It installs inline with crankcase/valve cover vents and uses dual internal baffles plus two external breather filters to slow airflow and capture heavier oil droplets. For a performance Avalon the bigger 1.2L tank and AN10 fittings let you route flow from high‑volume sources without frequent draining, and the included petcock makes service straightforward. Construction looks solid in photos and user reports praise its effectiveness on boosted and high‑displacement engines, but the can is bulky so fitting it in the Avalon engine bay will need planning for mounting location and hose routing. Some users note relatively thin wall thickness and a basic drain design, so expect this to be a durable but budget‑oriented solution rather than a premium billet unit with advanced drain hardware.
Best for: Performance‑oriented buyers who prioritize keeping intake and valves clean under hard driving and want a high‑capacity catch can that handles elevated crankcase flow and boost without constant servicing.
Less Ideal for: Buyers seeking a compact, stealthy factory‑style solution or a premium machined can with advanced quick‑drain hardware should consider other options.
- Large 1.2L capacity reduces maintenance frequency on high‑flow or boosted setups
- Twin internal baffles and dual breather filters improve oil separation and reduce intake contamination
- AN10 fittings and included hardware simplify plumbing for high‑volume crankcase vents
- TIG welded aluminum construction offers corrosion resistance and lighter weight than steel
- Bulky footprint may require custom mounting or sacrifice of engine bay space
- Drain and petcock are basic and could be less convenient than quick‑release designs
- Some reports indicate relatively thin wall gauge compared with higher‑end units
Verdict A high‑capacity, performance‑focused aluminum catch can that works well for a tuned Avalon but requires careful planning to fit and has basic drain hardware.
4. Htostar Racing Billet Aluminum Oil Catch Can Kit (350–400 ml)
| Fit Type | Universal |
|---|---|
| Capacity | 400ML |
| Thread Size | M16*1.5 |
| Adapters | 6mm 8mm 10mm adapters included |
| Material | Billet aluminum (T-6061) |
This Htostar Racing catch can is a budget-friendly, universal kit built from thicker T-6061 billet aluminum and anodized for a glossy, durable finish. It installs inline with crankcase ventilation to collect oil and moisture before fumes reach the intake, using a removable baffle and supplied steel-wool-style packing to condense vapor into liquid. The kit includes an adjustable bracket, multiple adapters, O-rings, and a dipstick for checking collected fluid, which makes it practical for DIY installs on a Toyota Avalon if you have clearance in the engine bay. Expect to swap the supplied tubing and packing for higher-quality hose and copper wool for best long-term results, since several users noted the included hose can collapse under vacuum. The 350–400 ml capacity is adequate for routine street use but requires periodic draining and cleaning to avoid restriction, and the universal fit means some trimming or custom routing may be needed for neat installation on the Avalon. For the price you get solid construction and basic functionality with a few user-sourced upgrades recommended.
Best for: A budget-conscious buyer who wants a simple, metal-bodied catch can to reduce intake oil contamination on a Toyota Avalon without paying for a vehicle-specific kit.
Less Ideal for: Drivers seeking a plug-and-play, Avalon-dedicated solution or those who want a large-capacity, maintenance-free unit should consider vehicle-specific or higher-end models instead.
- Billet T-6061 aluminum body offers stronger, more durable construction than thin-shell budget cans.
- Removable baffle and packing condense vapors effectively to reduce oil and carbon entering the intake.
- Includes adjustable mounting bracket, multiple adapters, O-rings, and a dipstick for easier installation and inspection.
- Anodized finish resists corrosion and keeps the unit looking factory-quality in the engine bay.
- Supplied hose is low quality and may collapse under vacuum, so replacement hose is typically required.
- Universal design can need modification or custom routing to fit neatly in a Toyota Avalon engine bay.
- 350–400 ml capacity requires regular draining on engines with higher blow-by.
Verdict A sturdy, low-cost billet catch can that works for a Toyota Avalon with minor mods and upgraded hose, but plan on regular maintenance and a few user-sourced improvements.
5. EVIL ENERGY Oil Catch Can Air Oil Separator (3 oz)
| Compatibility | Designed for multiple vehicles (see fitment) — not specific to Avalon |
|---|---|
| Capacity | 3oz |
| Material | Aluminum |
| Mounting | Includes bracket and fittings |
This EVIL ENERGY oil catch can is a small, baffled air oil separator built to capture oil vapor and contaminants before they reach the intake. It is typically installed in-line with the PCV/CCV hoses or used as a breather on systems without a PCV, and comes with a custom bracket, hoses, and quick-connect fittings to simplify installation. The unit uses a fine mesh filter and a removable rotary base with O-ring seal for draining trapped oil, which makes periodic service straightforward. Practical benefits include reduced intake valve gunk and cleaner intake tract operation, and the compact 3 oz capacity fits tight engine bays. Important limitations are the small capacity that requires more frequent checks and the reported need to use anti-seize on the cup threads to avoid seizing during removal; some users also note the bracket sits close to the can which can make unscrewing awkward. For a mainstream buyer prioritizing reliability, it provides a factory-friendly, budget-conscious way to protect the intake when properly maintained.
Best for: A risk-averse mainstream buyer who wants a simple, factory-friendly way to reduce carbon buildup and protect engine longevity without extensive modifications.
Less Ideal for: Not ideal for performance builds or high-boost forced-induction setups that generate large amounts of oil vapor and need larger-capacity or high-flow systems.
- Includes vehicle-specific bracket, hoses, and aluminum quick-connect fittings for easier install.
- Baffled design with fine mesh filter and O-ring seal reduces oil vapor reaching the intake.
- Rotating removable base allows draining without disassembling the whole unit.
- Compact footprint fits into crowded engine bays.
- Small 3 oz reservoir means more frequent draining and inspection.
- Cup threads can seize if not treated with anti-seize during installation.
Verdict A compact, budget-oriented catch can that offers effective oil separation for everyday use but needs regular draining and careful installation to avoid seized threads.
6. WENJTP 150ml Universal Baffled 3-Port Oil Catch Can with Breather Filter and Drain Valve
| Capacity | 150 Milliliters |
|---|---|
| Ports | 3 x 3/8-18 NPT |
| Material | 6061 Aluminum |
| Fit Type | Universal |
This WENJTP 150 ml catch can captures crankcase oil and moisture before vapors re-enter the intake, using an internal baffle and a low-micron bronze filter to improve separation. It is typically mounted in the engine bay and plumbed into PCV or intake lines to intercept oil-laden blow-by; the 3-port layout gives flexibility when routing hoses on different engine layouts. The can is fully billet 6061 aluminum with an anodized finish, includes adapters and a drain valve for easier emptying, and has a 360 degree adjustable bracket for tight spaces. Practical benefits are straightforward: small footprint for congested bays like the Toyota Avalon, reusable construction you can clean, and a more complete filtration element than simple mesh designs. Limitations are its modest 150 ml capacity, which requires more frequent draining on higher blow-by engines, and some buyers report missing or tight-fitting fittings and lightweight mounting hardware. The tapered thread and included thread seal tape improve sealing but may make adapter installation feel different than pictured.
Best for: Practical optimizers who want an affordable, reusable catch can to reduce intake contamination on a Toyota Avalon without upgrading to a large racing-style unit.
Less Ideal for: Drivers seeking a set-and-forget, high-capacity solution or those who prefer complete vehicle-specific kits with heavy-duty hardware should consider larger or dedicated Avalon-fit options.
- Baffled design with low-micron bronze filter for better oil separation than basic cans
- Billet 6061 aluminum construction with anodized finish for corrosion resistance
- Includes adjustable 360 degree mounting bracket to fit tight engine bays
- Three-port layout and multiple adapters allow flexible hose routing
- Drain valve simplifies emptying without full disassembly
- Small 150 ml capacity requires frequent checks and draining on vehicles with higher blow-by
- Some users report incomplete or loose fittings and light-duty mounting screws
- Adapters use a tapered thread and may not seat the same way as pictured, which can confuse installation
Verdict A budget-friendly, compact catch can with solid filtration and flexible mounting that suits Toyota Avalon drivers who want improved engine cleanliness but can live with a small reservoir and basic hardware.
7. EVIL ENERGY 300ml Baffled Oil Catch Can with 5ft NBR Hose Kit
| Capacity | 300 Milliliters |
|---|---|
| Hose length | 5 ft (1.5 m) |
| Hose ID | 3/8 inch |
| Thread | M16 x 1.5 |
This EVIL ENERGY catch can is a compact, universal 300ml unit built to trap oil and moisture before crankcase vapors reach the intake system. It installs inline with PCV/vent hoses or as a vent for pre-PCV setups and includes a removable baffle and steel wool to increase coalescing efficiency. The kit ships with a 5ft NBR hose and standard fittings, which makes routing and mounting straightforward in most engine bays. In practical use it collects noticeable residue, helping reduce valve and intake gunk and easing long-term maintenance. The aluminum construction and threaded cap feel robust and serviceable, and the removable internals make cleaning simple. Downsides are that the included hose length and some supplied fittings may require changes for a tidy installation on certain engines, and the 300ml capacity means frequent checks on high-blow-by applications. In cold climates the manufacturer recommends more frequent cleaning to avoid moisture freeze in the vent path. For a balanced buyer wanting a capable, affordable catch can for routine protection, this unit covers the essentials reliably.
Best for: Balanced all-round buyers who want an affordable, well-built catch can to reduce intake carbon and protect engine longevity without committing to an oversized or specialist unit.
Less Ideal for: Drivers seeking a model-specific kit with guaranteed plug-and-play fittings or those who prefer a very large-capacity can for heavy-duty or tracked use should consider other options.
- Removable baffled core and steel wool improve oil separation and make cleaning easier.
- Solid aluminum construction and threaded cap provide a durable, serviceable assembly.
- Includes 5ft NBR hose with good heat and wear resistance for routing in engine bays.
- Universal installation options allow use as a vent or inline between PCV hoses.
- Some supplied fittings and hose length may not match every vehicle layout requiring extra parts.
- 300ml capacity can require frequent emptying on high blow-by or long-interval applications.
Verdict A durable, entry-to-mid-level baffled catch can that balances performance and cost but may need minor hose or fitting upgrades for perfect fitment on a Toyota Avalon.
Choosing the Right Toyota Avalon Oil Catch Can: Key Factors to Consider
Separation Efficiency
How well a catch can separates oil droplets and vapor from crankcase and PCV gases directly affects intake cleanliness and valve longevity. Higher-efficiency designs capture more condensate before it reaches the intake, reducing carbon and sludge buildup over time.
Efficiency matters because trapped oil that bypasses the can will circulate back into intake passages and valves, undermining the purpose of the device. Look for units with multi-stage baffles or filter media designed to condense and collect oil while allowing gases to vent or return.
Capacity And Drain Method
Can capacity determines how often you need to service the unit and how much oil it can hold between maintenance intervals. Larger reservoirs reduce service frequency but may be harder to tuck into tight engine bays.
Drain method affects convenience and cleanliness. A quick-drain valve or removable reservoir makes servicing easier and minimizes the chance of spills, while fixed or sealed designs can be messier and more time consuming to empty.
Fitment And Mounting Options
Proper fitment ensures the catch can can be securely mounted without interfering with existing components or obstructing access to routine service points. Consider bracket designs, adjustable mounts, and whether the can can be oriented to allow easy hose connection and visual inspection.
Mounting flexibility matters because the Avalon engine bay has limited space in certain areas. A kit that provides multiple mounting points or compact profiles will simplify a professional or DIY install.
Hose And Fitting Compatibility
The catch can must connect to the PCV and intake hoses using fittings sized and angled to match the vehicle's existing plumbing. Mismatched fittings can cause leaks, kinks, or require additional adapters that complicate installation.
Check inlet and outlet sizes, the availability of swivel fittings, and whether the kit includes the necessary clamps and hoses. Smooth routing without sharp bends helps maintain vacuum balance and ensures the system functions as intended.
Materials And Build Quality
Durable materials and quality construction extend service life and resist corrosion from oil and road moisture. Aluminum or steel bodies with robust seals and high-quality fittings are less likely to develop leaks or fail under heat cycling.
Internal baffles and seals should withstand repeated draining and cleaning. Pay attention to finish and machining tolerances because loose fittings or thin materials can create maintenance headaches over time.
Serviceability And Inspection
Easy access for visual inspection and cleaning helps you keep the system working and prevents neglect. Transparent sight tubes or removable caps let you judge fill level quickly, while accessible mounting makes removal and reinstallation simpler.
Serviceability also includes how easy it is to replace internal filter media, clean baffles, and re-seal the unit after maintenance. Units that simplify these tasks reduce the likelihood of improper reassembly.
FAQ
Do I need an oil catch can for my Toyota Avalon?
A catch can is often used to reduce oil and condensate that can coat intake passages and valves. It is more commonly recommended if you want to minimize intake deposits or if you drive in conditions that promote blow-by, such as frequent short trips or heavy load driving. The benefit depends on your engine usage and maintenance habits.
How hard is it to install an oil catch can on an Avalon?
Installation difficulty varies by kit, but many kits are designed for straightforward attachment to existing PCV and intake hose locations. Some owners can complete an install with basic hand tools in a garage, while others may prefer a shop if custom routing or tight clearances are involved. Look for kits with clear instructions and vehicle-friendly fittings.
Where should I mount a catch can in the engine bay?
Mount the can where it is secure, accessible for draining, and where hoses can reach without sharp bends or interference. Typical locations are on a strut tower, firewall, or unused bracket near the engine. The goal is a firm mount that allows easy inspection and service while maintaining proper hose routing.
How often should I empty the catch can?
Drain intervals depend on driving conditions and catch can capacity. Some owners check the can at each oil change, while others inspect more or less frequently. Regular visual checks let you gauge how quickly it fills and set a maintenance rhythm that prevents overflow or saturation of internal components.
Will a catch can affect engine vacuum or performance?
A properly sized and installed catch can should not negatively affect vacuum or engine operation because it is designed to allow gases to flow while trapping oil. Poor routing, undersized hoses, or leaks can create issues, so correct hose sizing and secure fittings are important to maintain normal crankcase ventilation behavior.
Can I install an oil catch can if I have a turbocharged Avalon?
If your Avalon is turbocharged, a catch can can still be used, but plumbing and pressure differentials require attention. Turbo systems may produce different vapor behavior and backpressure, so choose a can and routing strategy suited for boosted engines. Confirm fittings and drain methods are compatible with your setup.
How We Chose the Best Toyota Avalon Oil Catch Can
We focused on products that address the unique plumbing and space constraints of the Toyota Avalon engine bay and that provide reliable oil-vapor separation without complicating regular maintenance. Key evaluation criteria included separation efficiency, can and filter capacity, mounting and hose routing compatibility with Avalon engine layouts, ease of installation and serviceability, and materials resistance to heat and oil. We also assessed build quality, such as durable fittings and corrosion-resistant finishes, plus how straightforward it is to empty and inspect the can. Items were excluded if they required extensive engine modification, extensive fabrication, or lacked clear hose and fitting sizes compatible with OEM PCV and intake ports. Our goal was practical solutions that balance performance, durability, and user-friendly installation for Avalon owners.
Our full evaluation process is outlined in our review methodology.
Conclusion
Choosing the right catch can for a Toyota Avalon comes down to matching separation performance, capacity, and fitment to how you drive and how often you will service the unit. Prioritize efficient oil-vapor separation and a mounting solution that fits the Avalon engine bay without interfering with routine maintenance. Balance convenience features, like easy drains and clear inspection points, against build quality and hose compatibility. Doing so will help you reduce intake deposits while keeping installation and ongoing maintenance straightforward.
Explore More:
- Check out all Toyota Avalon parts & accessories
- Explore Engine
- Browse all Auto Parts
